Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817

B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, M. Afrough, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith & 230 others B. Allen, G. Allen, A. Allocca, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya, J. S. Areeda, N. Arnaud, K. G. Arun, S. Ascenzi, G. Ashton, M. Ast, S. M. Aston, P. Astone, D. V. Atallah, P. Aufmuth, C. Aulbert, K. Aultoneal, C. Austin, A. Avila-Alvarez, S. Babak, P. Bacon, M. K.M. Bader, S. Bae, P. T. Baker, F. Baldaccini, G. Ballardin, S. Banagiri, J. C. Barayoga, S. E. Barclay, B. C. Barish, D. Barker, K. Barkett, F. Barone, B. Barr, L. Barsotti, M. Barsuglia, D. Barta, J. Bartlett, I. Bartos, R. Bassiri, A. Basti, J. C. Batch, M. Bawaj, J. C. Bayley, M. Bazzan, B. Bécsy, C. Beer, M. Bejger, I. Belahcene, A. S. Bell, G. Bergmann, S. Bernuzzi, J. J. Bero, C. P.L. Berry, D. Bersanetti, A. Bertolini, J. Betzwieser, S. Bhagwat, R. Bhandare, I. A. Bilenko, G. Billingsley, C. R. Billman, J. Birch, R. Birney, O. Birnholtz, S. Biscans, S. Biscoveanu, A. Bisht, M. Bitossi, C. Biwer, M. A. Bizouard, J. K. Blackburn, J. Blackman, C. D. Blair, D. G. Blair, R. M. Blair, S. Bloemen, O. Bock, N. Bode, M. Boer, G. Bogaert, A. Bohe, F. Bondu, E. Bonilla, R. Bonnand, B. A. Boom, R. Bork, V. Boschi, S. Bose, K. Bossie, Y. Bouffanais, A. Bozzi, C. Bradaschia, P. R. Brady, M. Branchesi, J. E. Brau, T. Briant, A. Brillet, M. Brinkmann, V. Brisson, P. Brockill, J. E. Broida, A. F. Brooks, D. D. Brown, S. Brunett, C. C. Buchanan, A. Buikema, T. Bulik, H. J. Bulten, A. Buonanno, D. Buskulic, C. Buy, R. L. Byer, M. Cabero, L. Cadonati, G. Cagnoli, C. Cahillane, J. Calderón Bustillo, T. A. Callister, E. Calloni, J. B. Camp, M. Canepa, P. Canizares, K. C. Cannon, H. Cao, J. Cao, C. D. Capano, E. Capocasa, F. Carbognani, S. Caride, M. F. Carney, J. Casanueva Diaz, C. Casentini, S. Caudill, M. Cavaglià, F. Cavalier, R. Cavalieri, G. Cella, C. B. Cepeda, P. Cerdá-Durán, G. Cerretani, E. Cesarini, S. J. Chamberlin, M. Chan, S. Chao, P. Charlton, E. Chase, E. Chassande-Mottin, D. Chatterjee, K. Chatziioannou, B. D. Cheeseboro, H. Y. Chen, X. Chen, Y. Chen, H. P. Cheng, H. Chia, A. Chincarini, A. Chiummo, T. Chmiel, H. S. Cho, M. Cho, J. H. Chow, N. Christensen, Q. Chu, A. J.K. Chua, S. Chua, A. K.W. Chung, S. Chung, G. Ciani, R. Ciolfi, C. E. Cirelli, A. Cirone, F. Clara, J. A. Clark, P. Clearwater, F. Cleva, C. Cocchieri, E. Coccia, P. F. Cohadon, D. Cohen, A. Colla, C. G. Collette, L. R. Cominsky, M. Constancio, L. Conti, S. J. Cooper, P. Corban, T. R. Corbitt, I. Cordero-Carrión, K. R. Corley, N. Cornish, A. Corsi, S. Cortese, C. A. Costa, M. W. Coughlin, S. B. Coughlin, J. P. Coulon, S. T. Countryman, P. Couvares, P. B. Covas, E. E. Cowan, D. M. Coward, M. J. Cowart, D. C. Coyne, R. Coyne, J. D.E. Creighton, T. D. Creighton, J. Cripe, S. G. Crowder, T. J. Cullen, A. Cumming, L. Cunningham, E. Cuoco, T. Dal Canton, B. Goncharov, L. McNeill, L. Sammut, R. J.E. Smith, C. Talbot, E. Thrane, C. Whittle, X. J. Zhu

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Abstract

The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting mass of the dynamical ejecta to estimate its contribution (without the effects of wind ejecta) to the corresponding kilonova light curves from various models. The distributions of dynamical ejecta mass range between Mej = 10-3 - 10-2 M for various equations of state, assuming that the neutron stars are rotating slowly. In addition, we use our estimates of the dynamical ejecta mass and the neutron star merger rates inferred from GW170817 to constrain the contribution of events like this to the r-process element abundance in the Galaxy when ejecta mass from post-merger winds is neglected. We find that if ≳10% of the matter dynamically ejected from binary neutron star (BNS) mergers is converted to r-process elements, GW170817-like BNS mergers could fully account for the amount of r-process material observed in the Milky Way.

Original languageEnglish
Article numberL39
Number of pages13
JournalAstrophysical Journal Letters
Volume850
Issue number2
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • gravitational waves
  • methods: data analysis
  • stars: neutron

Cite this

Abbott, B. P. ; Abbott, R. ; Abbott, T. D. ; Acernese, F. ; Ackley, K. ; Adams, C. ; Adams, T. ; Addesso, P. ; Adhikari, R. X. ; Adya, V. B. ; Affeldt, C. ; Afrough, M. ; Agarwal, B. ; Agathos, M. ; Agatsuma, K. ; Aggarwal, N. ; Aguiar, O. D. ; Aiello, L. ; Ain, A. ; Ajith, P. ; Allen, B. ; Allen, G. ; Allocca, A. ; Altin, P. A. ; Amato, A. ; Ananyeva, A. ; Anderson, S. B. ; Anderson, W. G. ; Angelova, S. V. ; Antier, S. ; Appert, S. ; Arai, K. ; Araya, M. C. ; Areeda, J. S. ; Arnaud, N. ; Arun, K. G. ; Ascenzi, S. ; Ashton, G. ; Ast, M. ; Aston, S. M. ; Astone, P. ; Atallah, D. V. ; Aufmuth, P. ; Aulbert, C. ; Aultoneal, K. ; Austin, C. ; Avila-Alvarez, A. ; Babak, S. ; Bacon, P. ; Bader, M. K.M. ; Bae, S. ; Baker, P. T. ; Baldaccini, F. ; Ballardin, G. ; Banagiri, S. ; Barayoga, J. C. ; Barclay, S. E. ; Barish, B. C. ; Barker, D. ; Barkett, K. ; Barone, F. ; Barr, B. ; Barsotti, L. ; Barsuglia, M. ; Barta, D. ; Bartlett, J. ; Bartos, I. ; Bassiri, R. ; Basti, A. ; Batch, J. C. ; Bawaj, M. ; Bayley, J. C. ; Bazzan, M. ; Bécsy, B. ; Beer, C. ; Bejger, M. ; Belahcene, I. ; Bell, A. S. ; Bergmann, G. ; Bernuzzi, S. ; Bero, J. J. ; Berry, C. P.L. ; Bersanetti, D. ; Bertolini, A. ; Betzwieser, J. ; Bhagwat, S. ; Bhandare, R. ; Bilenko, I. A. ; Billingsley, G. ; Billman, C. R. ; Birch, J. ; Birney, R. ; Birnholtz, O. ; Biscans, S. ; Biscoveanu, S. ; Bisht, A. ; Bitossi, M. ; Biwer, C. ; Bizouard, M. A. ; Blackburn, J. K. ; Blackman, J. ; Blair, C. D. ; Blair, D. G. ; Blair, R. M. ; Bloemen, S. ; Bock, O. ; Bode, N. ; Boer, M. ; Bogaert, G. ; Bohe, A. ; Bondu, F. ; Bonilla, E. ; Bonnand, R. ; Boom, B. A. ; Bork, R. ; Boschi, V. ; Bose, S. ; Bossie, K. ; Bouffanais, Y. ; Bozzi, A. ; Bradaschia, C. ; Brady, P. R. ; Branchesi, M. ; Brau, J. E. ; Briant, T. ; Brillet, A. ; Brinkmann, M. ; Brisson, V. ; Brockill, P. ; Broida, J. E. ; Brooks, A. F. ; Brown, D. D. ; Brunett, S. ; Buchanan, C. C. ; Buikema, A. ; Bulik, T. ; Bulten, H. J. ; Buonanno, A. ; Buskulic, D. ; Buy, C. ; Byer, R. L. ; Cabero, M. ; Cadonati, L. ; Cagnoli, G. ; Cahillane, C. ; Bustillo, J. Calderón ; Callister, T. A. ; Calloni, E. ; Camp, J. B. ; Canepa, M. ; Canizares, P. ; Cannon, K. C. ; Cao, H. ; Cao, J. ; Capano, C. D. ; Capocasa, E. ; Carbognani, F. ; Caride, S. ; Carney, M. F. ; Diaz, J. Casanueva ; Casentini, C. ; Caudill, S. ; Cavaglià, M. ; Cavalier, F. ; Cavalieri, R. ; Cella, G. ; Cepeda, C. B. ; Cerdá-Durán, P. ; Cerretani, G. ; Cesarini, E. ; Chamberlin, S. J. ; Chan, M. ; Chao, S. ; Charlton, P. ; Chase, E. ; Chassande-Mottin, E. ; Chatterjee, D. ; Chatziioannou, K. ; Cheeseboro, B. D. ; Chen, H. Y. ; Chen, X. ; Chen, Y. ; Cheng, H. P. ; Chia, H. ; Chincarini, A. ; Chiummo, A. ; Chmiel, T. ; Cho, H. S. ; Cho, M. ; Chow, J. H. ; Christensen, N. ; Chu, Q. ; Chua, A. J.K. ; Chua, S. ; Chung, A. K.W. ; Chung, S. ; Ciani, G. ; Ciolfi, R. ; Cirelli, C. E. ; Cirone, A. ; Clara, F. ; Clark, J. A. ; Clearwater, P. ; Cleva, F. ; Cocchieri, C. ; Coccia, E. ; Cohadon, P. F. ; Cohen, D. ; Colla, A. ; Collette, C. G. ; Cominsky, L. R. ; Constancio, M. ; Conti, L. ; Cooper, S. J. ; Corban, P. ; Corbitt, T. R. ; Cordero-Carrión, I. ; Corley, K. R. ; Cornish, N. ; Corsi, A. ; Cortese, S. ; Costa, C. A. ; Coughlin, M. W. ; Coughlin, S. B. ; Coulon, J. P. ; Countryman, S. T. ; Couvares, P. ; Covas, P. B. ; Cowan, E. E. ; Coward, D. M. ; Cowart, M. J. ; Coyne, D. C. ; Coyne, R. ; Creighton, J. D.E. ; Creighton, T. D. ; Cripe, J. ; Crowder, S. G. ; Cullen, T. J. ; Cumming, A. ; Cunningham, L. ; Cuoco, E. ; Dal Canton, T. ; Goncharov, B. ; McNeill, L. ; Sammut, L. ; Smith, R. J.E. ; Talbot, C. ; Thrane, E. ; Whittle, C. ; Zhu, X. J. / Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817. In: Astrophysical Journal Letters. 2017 ; Vol. 850, No. 2.
@article{7d7e3b5c3c3d4aaba24cbc49a70a658a,
title = "Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817",
abstract = "The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting mass of the dynamical ejecta to estimate its contribution (without the effects of wind ejecta) to the corresponding kilonova light curves from various models. The distributions of dynamical ejecta mass range between Mej = 10-3 - 10-2 M⊙ for various equations of state, assuming that the neutron stars are rotating slowly. In addition, we use our estimates of the dynamical ejecta mass and the neutron star merger rates inferred from GW170817 to constrain the contribution of events like this to the r-process element abundance in the Galaxy when ejecta mass from post-merger winds is neglected. We find that if ≳10{\%} of the matter dynamically ejected from binary neutron star (BNS) mergers is converted to r-process elements, GW170817-like BNS mergers could fully account for the amount of r-process material observed in the Milky Way.",
keywords = "gravitational waves, methods: data analysis, stars: neutron",
author = "Abbott, {B. P.} and R. Abbott and Abbott, {T. D.} and F. Acernese and K. Ackley and C. Adams and T. Adams and P. Addesso and Adhikari, {R. X.} and Adya, {V. B.} and C. Affeldt and M. Afrough and B. Agarwal and M. Agathos and K. Agatsuma and N. Aggarwal and Aguiar, {O. D.} and L. Aiello and A. Ain and P. Ajith and B. Allen and G. Allen and A. Allocca and Altin, {P. A.} and A. Amato and A. Ananyeva and Anderson, {S. B.} and Anderson, {W. G.} and Angelova, {S. V.} and S. Antier and S. Appert and K. Arai and Araya, {M. C.} and Areeda, {J. S.} and N. Arnaud and Arun, {K. G.} and S. Ascenzi and G. Ashton and M. Ast and Aston, {S. M.} and P. Astone and Atallah, {D. V.} and P. Aufmuth and C. Aulbert and K. Aultoneal and C. Austin and A. Avila-Alvarez and S. Babak and P. Bacon and Bader, {M. K.M.} and S. Bae and Baker, {P. T.} and F. Baldaccini and G. Ballardin and S. Banagiri and Barayoga, {J. C.} and Barclay, {S. E.} and Barish, {B. C.} and D. Barker and K. Barkett and F. Barone and B. Barr and L. Barsotti and M. Barsuglia and D. Barta and J. Bartlett and I. Bartos and R. Bassiri and A. Basti and Batch, {J. C.} and M. Bawaj and Bayley, {J. C.} and M. Bazzan and B. B{\'e}csy and C. Beer and M. Bejger and I. Belahcene and Bell, {A. S.} and G. Bergmann and S. Bernuzzi and Bero, {J. J.} and Berry, {C. P.L.} and D. Bersanetti and A. Bertolini and J. Betzwieser and S. Bhagwat and R. Bhandare and Bilenko, {I. A.} and G. Billingsley and Billman, {C. R.} and J. Birch and R. Birney and O. Birnholtz and S. Biscans and S. Biscoveanu and A. Bisht and M. Bitossi and C. Biwer and Bizouard, {M. A.} and Blackburn, {J. K.} and J. Blackman and Blair, {C. D.} and Blair, {D. G.} and Blair, {R. M.} and S. Bloemen and O. Bock and N. Bode and M. Boer and G. Bogaert and A. Bohe and F. Bondu and E. Bonilla and R. Bonnand and Boom, {B. A.} and R. Bork and V. Boschi and S. Bose and K. Bossie and Y. Bouffanais and A. Bozzi and C. Bradaschia and Brady, {P. R.} and M. Branchesi and Brau, {J. E.} and T. Briant and A. Brillet and M. Brinkmann and V. Brisson and P. Brockill and Broida, {J. E.} and Brooks, {A. F.} and Brown, {D. D.} and S. Brunett and Buchanan, {C. C.} and A. Buikema and T. Bulik and Bulten, {H. J.} and A. Buonanno and D. Buskulic and C. Buy and Byer, {R. L.} and M. Cabero and L. Cadonati and G. Cagnoli and C. Cahillane and Bustillo, {J. Calder{\'o}n} and Callister, {T. A.} and E. Calloni and Camp, {J. B.} and M. Canepa and P. Canizares and Cannon, {K. C.} and H. Cao and J. Cao and Capano, {C. D.} and E. Capocasa and F. Carbognani and S. Caride and Carney, {M. F.} and Diaz, {J. Casanueva} and C. Casentini and S. Caudill and M. Cavagli{\`a} and F. Cavalier and R. Cavalieri and G. Cella and Cepeda, {C. B.} and P. Cerd{\'a}-Dur{\'a}n and G. Cerretani and E. Cesarini and Chamberlin, {S. J.} and M. Chan and S. Chao and P. Charlton and E. Chase and E. Chassande-Mottin and D. Chatterjee and K. Chatziioannou and Cheeseboro, {B. D.} and Chen, {H. Y.} and X. Chen and Y. Chen and Cheng, {H. P.} and H. Chia and A. Chincarini and A. Chiummo and T. Chmiel and Cho, {H. S.} and M. Cho and Chow, {J. H.} and N. Christensen and Q. Chu and Chua, {A. J.K.} and S. Chua and Chung, {A. K.W.} and S. Chung and G. Ciani and R. Ciolfi and Cirelli, {C. E.} and A. Cirone and F. Clara and Clark, {J. A.} and P. Clearwater and F. Cleva and C. Cocchieri and E. Coccia and Cohadon, {P. F.} and D. Cohen and A. Colla and Collette, {C. G.} and Cominsky, {L. R.} and M. Constancio and L. Conti and Cooper, {S. J.} and P. Corban and Corbitt, {T. R.} and I. Cordero-Carri{\'o}n and Corley, {K. R.} and N. Cornish and A. Corsi and S. Cortese and Costa, {C. A.} and Coughlin, {M. W.} and Coughlin, {S. B.} and Coulon, {J. P.} and Countryman, {S. T.} and P. Couvares and Covas, {P. B.} and Cowan, {E. E.} and Coward, {D. M.} and Cowart, {M. J.} and Coyne, {D. C.} and R. Coyne and Creighton, {J. D.E.} and Creighton, {T. D.} and J. Cripe and Crowder, {S. G.} and Cullen, {T. J.} and A. Cumming and L. Cunningham and E. Cuoco and {Dal Canton}, T. and B. Goncharov and L. McNeill and L. Sammut and Smith, {R. J.E.} and C. Talbot and E. Thrane and C. Whittle and Zhu, {X. J.}",
year = "2017",
month = "12",
day = "1",
doi = "10.3847/2041-8213/aa9478",
language = "English",
volume = "850",
journal = "The Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "American Astronomical Society",
number = "2",

}

Abbott, BP, Abbott, R, Abbott, TD, Acernese, F, Ackley, K, Adams, C, Adams, T, Addesso, P, Adhikari, RX, Adya, VB, Affeldt, C, Afrough, M, Agarwal, B, Agathos, M, Agatsuma, K, Aggarwal, N, Aguiar, OD, Aiello, L, Ain, A, Ajith, P, Allen, B, Allen, G, Allocca, A, Altin, PA, Amato, A, Ananyeva, A, Anderson, SB, Anderson, WG, Angelova, SV, Antier, S, Appert, S, Arai, K, Araya, MC, Areeda, JS, Arnaud, N, Arun, KG, Ascenzi, S, Ashton, G, Ast, M, Aston, SM, Astone, P, Atallah, DV, Aufmuth, P, Aulbert, C, Aultoneal, K, Austin, C, Avila-Alvarez, A, Babak, S, Bacon, P, Bader, MKM, Bae, S, Baker, PT, Baldaccini, F, Ballardin, G, Banagiri, S, Barayoga, JC, Barclay, SE, Barish, BC, Barker, D, Barkett, K, Barone, F, Barr, B, Barsotti, L, Barsuglia, M, Barta, D, Bartlett, J, Bartos, I, Bassiri, R, Basti, A, Batch, JC, Bawaj, M, Bayley, JC, Bazzan, M, Bécsy, B, Beer, C, Bejger, M, Belahcene, I, Bell, AS, Bergmann, G, Bernuzzi, S, Bero, JJ, Berry, CPL, Bersanetti, D, Bertolini, A, Betzwieser, J, Bhagwat, S, Bhandare, R, Bilenko, IA, Billingsley, G, Billman, CR, Birch, J, Birney, R, Birnholtz, O, Biscans, S, Biscoveanu, S, Bisht, A, Bitossi, M, Biwer, C, Bizouard, MA, Blackburn, JK, Blackman, J, Blair, CD, Blair, DG, Blair, RM, Bloemen, S, Bock, O, Bode, N, Boer, M, Bogaert, G, Bohe, A, Bondu, F, Bonilla, E, Bonnand, R, Boom, BA, Bork, R, Boschi, V, Bose, S, Bossie, K, Bouffanais, Y, Bozzi, A, Bradaschia, C, Brady, PR, Branchesi, M, Brau, JE, Briant, T, Brillet, A, Brinkmann, M, Brisson, V, Brockill, P, Broida, JE, Brooks, AF, Brown, DD, Brunett, S, Buchanan, CC, Buikema, A, Bulik, T, Bulten, HJ, Buonanno, A, Buskulic, D, Buy, C, Byer, RL, Cabero, M, Cadonati, L, Cagnoli, G, Cahillane, C, Bustillo, JC, Callister, TA, Calloni, E, Camp, JB, Canepa, M, Canizares, P, Cannon, KC, Cao, H, Cao, J, Capano, CD, Capocasa, E, Carbognani, F, Caride, S, Carney, MF, Diaz, JC, Casentini, C, Caudill, S, Cavaglià, M, Cavalier, F, Cavalieri, R, Cella, G, Cepeda, CB, Cerdá-Durán, P, Cerretani, G, Cesarini, E, Chamberlin, SJ, Chan, M, Chao, S, Charlton, P, Chase, E, Chassande-Mottin, E, Chatterjee, D, Chatziioannou, K, Cheeseboro, BD, Chen, HY, Chen, X, Chen, Y, Cheng, HP, Chia, H, Chincarini, A, Chiummo, A, Chmiel, T, Cho, HS, Cho, M, Chow, JH, Christensen, N, Chu, Q, Chua, AJK, Chua, S, Chung, AKW, Chung, S, Ciani, G, Ciolfi, R, Cirelli, CE, Cirone, A, Clara, F, Clark, JA, Clearwater, P, Cleva, F, Cocchieri, C, Coccia, E, Cohadon, PF, Cohen, D, Colla, A, Collette, CG, Cominsky, LR, Constancio, M, Conti, L, Cooper, SJ, Corban, P, Corbitt, TR, Cordero-Carrión, I, Corley, KR, Cornish, N, Corsi, A, Cortese, S, Costa, CA, Coughlin, MW, Coughlin, SB, Coulon, JP, Countryman, ST, Couvares, P, Covas, PB, Cowan, EE, Coward, DM, Cowart, MJ, Coyne, DC, Coyne, R, Creighton, JDE, Creighton, TD, Cripe, J, Crowder, SG, Cullen, TJ, Cumming, A, Cunningham, L, Cuoco, E, Dal Canton, T, Goncharov, B, McNeill, L, Sammut, L, Smith, RJE, Talbot, C, Thrane, E, Whittle, C & Zhu, XJ 2017, 'Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817', Astrophysical Journal Letters, vol. 850, no. 2, L39. https://doi.org/10.3847/2041-8213/aa9478

Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817. / Abbott, B. P.; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams, C.; Adams, T.; Addesso, P.; Adhikari, R. X.; Adya, V. B.; Affeldt, C.; Afrough, M.; Agarwal, B.; Agathos, M.; Agatsuma, K.; Aggarwal, N.; Aguiar, O. D.; Aiello, L.; Ain, A.; Ajith, P.; Allen, B.; Allen, G.; Allocca, A.; Altin, P. A.; Amato, A.; Ananyeva, A.; Anderson, S. B.; Anderson, W. G.; Angelova, S. V.; Antier, S.; Appert, S.; Arai, K.; Araya, M. C.; Areeda, J. S.; Arnaud, N.; Arun, K. G.; Ascenzi, S.; Ashton, G.; Ast, M.; Aston, S. M.; Astone, P.; Atallah, D. V.; Aufmuth, P.; Aulbert, C.; Aultoneal, K.; Austin, C.; Avila-Alvarez, A.; Babak, S.; Bacon, P.; Bader, M. K.M.; Bae, S.; Baker, P. T.; Baldaccini, F.; Ballardin, G.; Banagiri, S.; Barayoga, J. C.; Barclay, S. E.; Barish, B. C.; Barker, D.; Barkett, K.; Barone, F.; Barr, B.; Barsotti, L.; Barsuglia, M.; Barta, D.; Bartlett, J.; Bartos, I.; Bassiri, R.; Basti, A.; Batch, J. C.; Bawaj, M.; Bayley, J. C.; Bazzan, M.; Bécsy, B.; Beer, C.; Bejger, M.; Belahcene, I.; Bell, A. S.; Bergmann, G.; Bernuzzi, S.; Bero, J. J.; Berry, C. P.L.; Bersanetti, D.; Bertolini, A.; Betzwieser, J.; Bhagwat, S.; Bhandare, R.; Bilenko, I. A.; Billingsley, G.; Billman, C. R.; Birch, J.; Birney, R.; Birnholtz, O.; Biscans, S.; Biscoveanu, S.; Bisht, A.; Bitossi, M.; Biwer, C.; Bizouard, M. A.; Blackburn, J. K.; Blackman, J.; Blair, C. D.; Blair, D. G.; Blair, R. M.; Bloemen, S.; Bock, O.; Bode, N.; Boer, M.; Bogaert, G.; Bohe, A.; Bondu, F.; Bonilla, E.; Bonnand, R.; Boom, B. A.; Bork, R.; Boschi, V.; Bose, S.; Bossie, K.; Bouffanais, Y.; Bozzi, A.; Bradaschia, C.; Brady, P. R.; Branchesi, M.; Brau, J. E.; Briant, T.; Brillet, A.; Brinkmann, M.; Brisson, V.; Brockill, P.; Broida, J. E.; Brooks, A. F.; Brown, D. D.; Brunett, S.; Buchanan, C. C.; Buikema, A.; Bulik, T.; Bulten, H. J.; Buonanno, A.; Buskulic, D.; Buy, C.; Byer, R. L.; Cabero, M.; Cadonati, L.; Cagnoli, G.; Cahillane, C.; Bustillo, J. Calderón; Callister, T. A.; Calloni, E.; Camp, J. B.; Canepa, M.; Canizares, P.; Cannon, K. C.; Cao, H.; Cao, J.; Capano, C. D.; Capocasa, E.; Carbognani, F.; Caride, S.; Carney, M. F.; Diaz, J. Casanueva; Casentini, C.; Caudill, S.; Cavaglià, M.; Cavalier, F.; Cavalieri, R.; Cella, G.; Cepeda, C. B.; Cerdá-Durán, P.; Cerretani, G.; Cesarini, E.; Chamberlin, S. J.; Chan, M.; Chao, S.; Charlton, P.; Chase, E.; Chassande-Mottin, E.; Chatterjee, D.; Chatziioannou, K.; Cheeseboro, B. D.; Chen, H. Y.; Chen, X.; Chen, Y.; Cheng, H. P.; Chia, H.; Chincarini, A.; Chiummo, A.; Chmiel, T.; Cho, H. S.; Cho, M.; Chow, J. H.; Christensen, N.; Chu, Q.; Chua, A. J.K.; Chua, S.; Chung, A. K.W.; Chung, S.; Ciani, G.; Ciolfi, R.; Cirelli, C. E.; Cirone, A.; Clara, F.; Clark, J. A.; Clearwater, P.; Cleva, F.; Cocchieri, C.; Coccia, E.; Cohadon, P. F.; Cohen, D.; Colla, A.; Collette, C. G.; Cominsky, L. R.; Constancio, M.; Conti, L.; Cooper, S. J.; Corban, P.; Corbitt, T. R.; Cordero-Carrión, I.; Corley, K. R.; Cornish, N.; Corsi, A.; Cortese, S.; Costa, C. A.; Coughlin, M. W.; Coughlin, S. B.; Coulon, J. P.; Countryman, S. T.; Couvares, P.; Covas, P. B.; Cowan, E. E.; Coward, D. M.; Cowart, M. J.; Coyne, D. C.; Coyne, R.; Creighton, J. D.E.; Creighton, T. D.; Cripe, J.; Crowder, S. G.; Cullen, T. J.; Cumming, A.; Cunningham, L.; Cuoco, E.; Dal Canton, T.; Goncharov, B.; McNeill, L.; Sammut, L.; Smith, R. J.E.; Talbot, C.; Thrane, E.; Whittle, C.; Zhu, X. J.

In: Astrophysical Journal Letters, Vol. 850, No. 2, L39, 01.12.2017.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817

AU - Abbott, B. P.

AU - Abbott, R.

AU - Abbott, T. D.

AU - Acernese, F.

AU - Ackley, K.

AU - Adams, C.

AU - Adams, T.

AU - Addesso, P.

AU - Adhikari, R. X.

AU - Adya, V. B.

AU - Affeldt, C.

AU - Afrough, M.

AU - Agarwal, B.

AU - Agathos, M.

AU - Agatsuma, K.

AU - Aggarwal, N.

AU - Aguiar, O. D.

AU - Aiello, L.

AU - Ain, A.

AU - Ajith, P.

AU - Allen, B.

AU - Allen, G.

AU - Allocca, A.

AU - Altin, P. A.

AU - Amato, A.

AU - Ananyeva, A.

AU - Anderson, S. B.

AU - Anderson, W. G.

AU - Angelova, S. V.

AU - Antier, S.

AU - Appert, S.

AU - Arai, K.

AU - Araya, M. C.

AU - Areeda, J. S.

AU - Arnaud, N.

AU - Arun, K. G.

AU - Ascenzi, S.

AU - Ashton, G.

AU - Ast, M.

AU - Aston, S. M.

AU - Astone, P.

AU - Atallah, D. V.

AU - Aufmuth, P.

AU - Aulbert, C.

AU - Aultoneal, K.

AU - Austin, C.

AU - Avila-Alvarez, A.

AU - Babak, S.

AU - Bacon, P.

AU - Bader, M. K.M.

AU - Bae, S.

AU - Baker, P. T.

AU - Baldaccini, F.

AU - Ballardin, G.

AU - Banagiri, S.

AU - Barayoga, J. C.

AU - Barclay, S. E.

AU - Barish, B. C.

AU - Barker, D.

AU - Barkett, K.

AU - Barone, F.

AU - Barr, B.

AU - Barsotti, L.

AU - Barsuglia, M.

AU - Barta, D.

AU - Bartlett, J.

AU - Bartos, I.

AU - Bassiri, R.

AU - Basti, A.

AU - Batch, J. C.

AU - Bawaj, M.

AU - Bayley, J. C.

AU - Bazzan, M.

AU - Bécsy, B.

AU - Beer, C.

AU - Bejger, M.

AU - Belahcene, I.

AU - Bell, A. S.

AU - Bergmann, G.

AU - Bernuzzi, S.

AU - Bero, J. J.

AU - Berry, C. P.L.

AU - Bersanetti, D.

AU - Bertolini, A.

AU - Betzwieser, J.

AU - Bhagwat, S.

AU - Bhandare, R.

AU - Bilenko, I. A.

AU - Billingsley, G.

AU - Billman, C. R.

AU - Birch, J.

AU - Birney, R.

AU - Birnholtz, O.

AU - Biscans, S.

AU - Biscoveanu, S.

AU - Bisht, A.

AU - Bitossi, M.

AU - Biwer, C.

AU - Bizouard, M. A.

AU - Blackburn, J. K.

AU - Blackman, J.

AU - Blair, C. D.

AU - Blair, D. G.

AU - Blair, R. M.

AU - Bloemen, S.

AU - Bock, O.

AU - Bode, N.

AU - Boer, M.

AU - Bogaert, G.

AU - Bohe, A.

AU - Bondu, F.

AU - Bonilla, E.

AU - Bonnand, R.

AU - Boom, B. A.

AU - Bork, R.

AU - Boschi, V.

AU - Bose, S.

AU - Bossie, K.

AU - Bouffanais, Y.

AU - Bozzi, A.

AU - Bradaschia, C.

AU - Brady, P. R.

AU - Branchesi, M.

AU - Brau, J. E.

AU - Briant, T.

AU - Brillet, A.

AU - Brinkmann, M.

AU - Brisson, V.

AU - Brockill, P.

AU - Broida, J. E.

AU - Brooks, A. F.

AU - Brown, D. D.

AU - Brunett, S.

AU - Buchanan, C. C.

AU - Buikema, A.

AU - Bulik, T.

AU - Bulten, H. J.

AU - Buonanno, A.

AU - Buskulic, D.

AU - Buy, C.

AU - Byer, R. L.

AU - Cabero, M.

AU - Cadonati, L.

AU - Cagnoli, G.

AU - Cahillane, C.

AU - Bustillo, J. Calderón

AU - Callister, T. A.

AU - Calloni, E.

AU - Camp, J. B.

AU - Canepa, M.

AU - Canizares, P.

AU - Cannon, K. C.

AU - Cao, H.

AU - Cao, J.

AU - Capano, C. D.

AU - Capocasa, E.

AU - Carbognani, F.

AU - Caride, S.

AU - Carney, M. F.

AU - Diaz, J. Casanueva

AU - Casentini, C.

AU - Caudill, S.

AU - Cavaglià, M.

AU - Cavalier, F.

AU - Cavalieri, R.

AU - Cella, G.

AU - Cepeda, C. B.

AU - Cerdá-Durán, P.

AU - Cerretani, G.

AU - Cesarini, E.

AU - Chamberlin, S. J.

AU - Chan, M.

AU - Chao, S.

AU - Charlton, P.

AU - Chase, E.

AU - Chassande-Mottin, E.

AU - Chatterjee, D.

AU - Chatziioannou, K.

AU - Cheeseboro, B. D.

AU - Chen, H. Y.

AU - Chen, X.

AU - Chen, Y.

AU - Cheng, H. P.

AU - Chia, H.

AU - Chincarini, A.

AU - Chiummo, A.

AU - Chmiel, T.

AU - Cho, H. S.

AU - Cho, M.

AU - Chow, J. H.

AU - Christensen, N.

AU - Chu, Q.

AU - Chua, A. J.K.

AU - Chua, S.

AU - Chung, A. K.W.

AU - Chung, S.

AU - Ciani, G.

AU - Ciolfi, R.

AU - Cirelli, C. E.

AU - Cirone, A.

AU - Clara, F.

AU - Clark, J. A.

AU - Clearwater, P.

AU - Cleva, F.

AU - Cocchieri, C.

AU - Coccia, E.

AU - Cohadon, P. F.

AU - Cohen, D.

AU - Colla, A.

AU - Collette, C. G.

AU - Cominsky, L. R.

AU - Constancio, M.

AU - Conti, L.

AU - Cooper, S. J.

AU - Corban, P.

AU - Corbitt, T. R.

AU - Cordero-Carrión, I.

AU - Corley, K. R.

AU - Cornish, N.

AU - Corsi, A.

AU - Cortese, S.

AU - Costa, C. A.

AU - Coughlin, M. W.

AU - Coughlin, S. B.

AU - Coulon, J. P.

AU - Countryman, S. T.

AU - Couvares, P.

AU - Covas, P. B.

AU - Cowan, E. E.

AU - Coward, D. M.

AU - Cowart, M. J.

AU - Coyne, D. C.

AU - Coyne, R.

AU - Creighton, J. D.E.

AU - Creighton, T. D.

AU - Cripe, J.

AU - Crowder, S. G.

AU - Cullen, T. J.

AU - Cumming, A.

AU - Cunningham, L.

AU - Cuoco, E.

AU - Dal Canton, T.

AU - Goncharov, B.

AU - McNeill, L.

AU - Sammut, L.

AU - Smith, R. J.E.

AU - Talbot, C.

AU - Thrane, E.

AU - Whittle, C.

AU - Zhu, X. J.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting mass of the dynamical ejecta to estimate its contribution (without the effects of wind ejecta) to the corresponding kilonova light curves from various models. The distributions of dynamical ejecta mass range between Mej = 10-3 - 10-2 M⊙ for various equations of state, assuming that the neutron stars are rotating slowly. In addition, we use our estimates of the dynamical ejecta mass and the neutron star merger rates inferred from GW170817 to constrain the contribution of events like this to the r-process element abundance in the Galaxy when ejecta mass from post-merger winds is neglected. We find that if ≳10% of the matter dynamically ejected from binary neutron star (BNS) mergers is converted to r-process elements, GW170817-like BNS mergers could fully account for the amount of r-process material observed in the Milky Way.

AB - The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type. The two-week-long electromagnetic (EM) counterpart had a signature indicative of an r-process-induced optical transient known as a kilonova. This Letter examines how the mass of the dynamical ejecta can be estimated without a direct electromagnetic observation of the kilonova, using GW measurements and a phenomenological model calibrated to numerical simulations of mergers with dynamical ejecta. Specifically, we apply the model to the binary masses inferred from the GW measurements, and use the resulting mass of the dynamical ejecta to estimate its contribution (without the effects of wind ejecta) to the corresponding kilonova light curves from various models. The distributions of dynamical ejecta mass range between Mej = 10-3 - 10-2 M⊙ for various equations of state, assuming that the neutron stars are rotating slowly. In addition, we use our estimates of the dynamical ejecta mass and the neutron star merger rates inferred from GW170817 to constrain the contribution of events like this to the r-process element abundance in the Galaxy when ejecta mass from post-merger winds is neglected. We find that if ≳10% of the matter dynamically ejected from binary neutron star (BNS) mergers is converted to r-process elements, GW170817-like BNS mergers could fully account for the amount of r-process material observed in the Milky Way.

KW - gravitational waves

KW - methods: data analysis

KW - stars: neutron

UR - http://www.scopus.com/inward/record.url?scp=85037682023&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/aa9478

DO - 10.3847/2041-8213/aa9478

M3 - Article

VL - 850

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

SN - 2041-8205

IS - 2

M1 - L39

ER -