TY - JOUR
T1 - Deep investigation of neutral gas origins (DINGO)
T2 - H i stacking experiments with early science data
AU - Rhee, Jonghwan
AU - Meyer, Martin
AU - Popping, Attila
AU - Bellstedt, Sabine
AU - Driver, Simon P.
AU - Robotham, Aaron S.G.
AU - Whiting, Matthew
AU - Baldry, Ivan K.
AU - Brough, Sarah
AU - Brown, Michael J.I.
AU - Bunton, John D.
AU - Dodson, Richard
AU - Holwerda, Benne W.
AU - Hopkins, Andrew M.
AU - Koribalski, Bärbel S.
AU - Lee-Waddell, Karen
AU - López-Sánchez, Ángel R.
AU - Loveday, Jon
AU - Mahony, Elizabeth
AU - Roychowdhury, Sambit
AU - Rozgonyi, Kristóf
AU - Staveley-Smit, Lister
N1 - Funding Information:
This research was supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D) through project number CE170100013. Parts of this research were conducted by the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project number CE110001020.
Funding Information:
We are grateful to the anonymous referee for helpful comments that have improved this paper. JR thanks Michael G. Jones, Wenkai Hu, and Garima Chauhan for providing useful information used in Figs 8, 21, and 22, respectively. JR is grateful to Barbara Catinella, Luca Cortese, and Ivy Wong for helpful comments and discussions. We thank Han-Seek Kim and Claudia del P. Lagos for providing their model predictions used in Fig. 25. KR acknowledges support from the Bundesministerium fuer Bildung und Forschung (BMBF) award 05A20WM4.
Funding Information:
The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO. This scientific work uses data obtained from the Murchison Radio-astronomy Observatory (MRO), which is jointly funded by the Commonwealth Government of Australia and State Government of Western Australia. The MRO is managed by the CSIRO, who also provide operational support to ASKAP. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. This work was supported by resources provided by the Pawsey Supercomputing Centre with funding from the Australian Government and the Government of Western Australia.
Funding Information:
GAMA is a joint European-Australasian project based around a spectroscopic campaign using the Anglo-Australian Telescope. The GAMA input catalogue is based on data taken from the Sloan Digital Sky Survey and the UKIRT Infrared Deep Sky Survey. Complementary imaging of the GAMA regions is being obtained by a number of independent survey programmes including GALEX MIS, VST KiDS, VISTA VIKING, WISE, Herschel-ATLAS, GMRT, and ASKAP providing UV to radio coverage. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO, and the participating institutions. The GAMA website is http://www.gama-survey.org/. Based on observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 179.A-2004. Based on observations made with ESO Telescopes at the La Silla Paranal Observatory under programme ID 177.A-3016. We gratefully acknowledge DUG Technology for their support and HPC services.
Publisher Copyright:
© 2022 Oxford University Press. All rights reserved.
PY - 2023/1
Y1 - 2023/1
N2 - We present early science results from Deep Investigation of Neutral Gas Origins (DINGO), an H I surv e y using the Australian Square Kilometre Array Pathfinder (ASKAP). Using ASKAP subarrays available during its commissioning phase, DINGO early science data were taken o v er ~60 deg2of the Galaxy And Mass Assembly (GAMA) 23 h region with 35.5 h integration time. We make direct detections of six known and one new sources at z < 0.01. Using H I spectral stacking, we investigate the H I gas content of galaxies at 0.04 < z < 0.09 for different galaxy colours. The results show that galaxy morphology based on optical colour is strongly linked to H I gas properties. To examine environmental impacts on the H I gas content of galaxies, three subsamples are made based on the GAMA group catalogue. The average H I mass of group central galaxies is larger than those of satellite and isolated galaxies, but with a lower H I gas fraction. We derive a variety of H I scaling relations for physical properties of our sample, including stellar mass, stellar mass surface density, NUV -r colour, specific star formation rate, and halo mass. We find that the derived H I scaling relations are comparable to other published results, with consistent trends also observed to ~0.5 dex lower limits in stellar mass and stellar surface density. The cosmic H I densities derived from our data are consistent with other published values at similar redshifts. DINGO early science highlights the power of H I spectral stacking techniques with ASKAP. K ey words: galaxies: evolution -galaxies: ISM -radio lines: galaxies.
AB - We present early science results from Deep Investigation of Neutral Gas Origins (DINGO), an H I surv e y using the Australian Square Kilometre Array Pathfinder (ASKAP). Using ASKAP subarrays available during its commissioning phase, DINGO early science data were taken o v er ~60 deg2of the Galaxy And Mass Assembly (GAMA) 23 h region with 35.5 h integration time. We make direct detections of six known and one new sources at z < 0.01. Using H I spectral stacking, we investigate the H I gas content of galaxies at 0.04 < z < 0.09 for different galaxy colours. The results show that galaxy morphology based on optical colour is strongly linked to H I gas properties. To examine environmental impacts on the H I gas content of galaxies, three subsamples are made based on the GAMA group catalogue. The average H I mass of group central galaxies is larger than those of satellite and isolated galaxies, but with a lower H I gas fraction. We derive a variety of H I scaling relations for physical properties of our sample, including stellar mass, stellar mass surface density, NUV -r colour, specific star formation rate, and halo mass. We find that the derived H I scaling relations are comparable to other published results, with consistent trends also observed to ~0.5 dex lower limits in stellar mass and stellar surface density. The cosmic H I densities derived from our data are consistent with other published values at similar redshifts. DINGO early science highlights the power of H I spectral stacking techniques with ASKAP. K ey words: galaxies: evolution -galaxies: ISM -radio lines: galaxies.
KW - galaxies: evolution
KW - galaxies: ISM
KW - radio lines: galaxies
UR - http://www.scopus.com/inward/record.url?scp=85144549916&partnerID=8YFLogxK
U2 - 10.1093/mnras/stac3065
DO - 10.1093/mnras/stac3065
M3 - Article
AN - SCOPUS:85144549916
SN - 0035-8711
VL - 518
SP - 4646
EP - 4671
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -