High Contrast Imaging with the New Vortex Coronagraph on NACO

Dimitri Mawet; Olivier Absil; Julien H Girard; Julien Milli; Jared O’Neal; Christian Delacroix; Pierre Baudoz; Anthony Boccaletti; Pierre Bourget; Valentin  Christiaens; Pontus Forsberg; Frederic Gonté; Serge Habraken; Charles Hanot; Mikael Karlsson; Markus Kasper; Anne-Marie Lagrange; Jean-Louis Lizon; Koraljka Muzic; Eduardo Peña; Richard Olivier; N. Slusarenko; Lowell E Tacconi-Garman; Jean Surdej

High Contrast Imaging with the New Vortex Coronagraph on NACO

Dimitri Mawet, Olivier Absil, Julien H Girard, Julien Milli, Jared O’Neal, Christian Delacroix, Pierre Baudoz, Anthony Boccaletti, Pierre Bourget, Valentin Christiaens, Pontus Forsberg, Frederic Gonté, Serge Habraken, Charles Hanot, Mikael Karlsson, Markus Kasper, Anne-Marie Lagrange, Jean-Louis Lizon, Koraljka Muzic, Eduardo PeñaRichard Olivier, N. Slusarenko, Lowell E Tacconi-Garman, Jean Surdej

Research output: Contribution to journal › Article › Research

Abstract

The installation and successful commissioning of an L'-band annular groove phase mask (AGPM) coronagraph on VLT/NACO is presented. The AGPM is a vector vortex coronagraph made from diamond sub-wavelength gratings tuned to the L'-band. The vector vortex coronagraph enables high-contrast imaging at very small inner working angles (here 0.09 arcseconds, the diffraction limit of the VLT at L'), potentially opening up a new parameter space in high-resolution imaging. During technical and science verification runs, we discovered a late-type companion at two beamwidths from an F0V star, and imaged the inner regions of β Pictoris down to the previously unexplored projected radius of 1.75 astronomical units. The circumstellar disc of β Pic was also resolved from 1 to 5 arcseconds. These results showcase the potential of the NACO L'-band AGPM over a wide range of spatial scales.

Original language	English
Pages (from-to)	8-13
Number of pages	6
Journal	The Messenger
Volume	152
Publication status	Published - Jun 2013
Externally published	Yes

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252510345-oaFinal published version, 2.57 MB

http://www.eso.org/sci/publications/messenger/archive/no.152-jun13/messenger-no152-8-13.pdf

Cite this

Mawet, D., Absil, O., Girard, J. H., Milli, J., O’Neal, J., Delacroix, C., Baudoz, P., Boccaletti, A., Bourget, P., Christiaens, V., Forsberg, P., Gonté, F., Habraken, S., Hanot, C., Karlsson, M., Kasper, M., Lagrange, A.-M., Lizon, J.-L., Muzic, K., ... Surdej, J. (2013). High Contrast Imaging with the New Vortex Coronagraph on NACO. The Messenger, 152, 8-13. http://www.eso.org/sci/publications/messenger/archive/no.152-jun13/messenger-no152-8-13.pdf

@article{1f7c585b57fc44ebbda35fc877e98200,

title = "High Contrast Imaging with the New Vortex Coronagraph on NACO",

abstract = "The installation and successful commissioning of an L'-band annular groove phase mask (AGPM) coronagraph on VLT/NACO is presented. The AGPM is a vector vortex coronagraph made from diamond sub-wavelength gratings tuned to the L'-band. The vector vortex coronagraph enables high-contrast imaging at very small inner working angles (here 0.09 arcseconds, the diffraction limit of the VLT at L'), potentially opening up a new parameter space in high-resolution imaging. During technical and science verification runs, we discovered a late-type companion at two beamwidths from an F0V star, and imaged the inner regions of β Pictoris down to the previously unexplored projected radius of 1.75 astronomical units. The circumstellar disc of β Pic was also resolved from 1 to 5 arcseconds. These results showcase the potential of the NACO L'-band AGPM over a wide range of spatial scales.",

author = "Dimitri Mawet and Olivier Absil and Girard, \{Julien H\} and Julien Milli and Jared O{\textquoteright}Neal and Christian Delacroix and Pierre Baudoz and Anthony Boccaletti and Pierre Bourget and Valentin Christiaens and Pontus Forsberg and Frederic Gont{\'e} and Serge Habraken and Charles Hanot and Mikael Karlsson and Markus Kasper and Anne-Marie Lagrange and Jean-Louis Lizon and Koraljka Muzic and Eduardo Pe{\~n}a and Richard Olivier and N. Slusarenko and Tacconi-Garman, \{Lowell E\} and Jean Surdej",

year = "2013",

month = jun,

language = "English",

volume = "152",

pages = "8--13",

journal = "The Messenger",

issn = "0722-6691",

publisher = "European Southern Observatory",

}

Mawet, D, Absil, O, Girard, JH, Milli, J, O’Neal, J, Delacroix, C, Baudoz, P, Boccaletti, A, Bourget, P, Christiaens, V, Forsberg, P, Gonté, F, Habraken, S, Hanot, C, Karlsson, M, Kasper, M, Lagrange, A-M, Lizon, J-L, Muzic, K, Peña, E, Olivier, R, Slusarenko, N, Tacconi-Garman, LE & Surdej, J 2013, 'High Contrast Imaging with the New Vortex Coronagraph on NACO', The Messenger, vol. 152, pp. 8-13. <http://www.eso.org/sci/publications/messenger/archive/no.152-jun13/messenger-no152-8-13.pdf>

TY - JOUR

T1 - High Contrast Imaging with the New Vortex Coronagraph on NACO

AU - Mawet, Dimitri

AU - Absil, Olivier

AU - Girard, Julien H

AU - Milli, Julien

AU - O’Neal, Jared

AU - Delacroix, Christian

AU - Baudoz, Pierre

AU - Boccaletti, Anthony

AU - Bourget, Pierre

AU - Christiaens, Valentin

AU - Forsberg, Pontus

AU - Gonté, Frederic

AU - Habraken, Serge

AU - Hanot, Charles

AU - Karlsson, Mikael

AU - Kasper, Markus

AU - Lagrange, Anne-Marie

AU - Lizon, Jean-Louis

AU - Muzic, Koraljka

AU - Peña, Eduardo

AU - Olivier, Richard

AU - Slusarenko, N.

AU - Tacconi-Garman, Lowell E

AU - Surdej, Jean

PY - 2013/6

Y1 - 2013/6

N2 - The installation and successful commissioning of an L'-band annular groove phase mask (AGPM) coronagraph on VLT/NACO is presented. The AGPM is a vector vortex coronagraph made from diamond sub-wavelength gratings tuned to the L'-band. The vector vortex coronagraph enables high-contrast imaging at very small inner working angles (here 0.09 arcseconds, the diffraction limit of the VLT at L'), potentially opening up a new parameter space in high-resolution imaging. During technical and science verification runs, we discovered a late-type companion at two beamwidths from an F0V star, and imaged the inner regions of β Pictoris down to the previously unexplored projected radius of 1.75 astronomical units. The circumstellar disc of β Pic was also resolved from 1 to 5 arcseconds. These results showcase the potential of the NACO L'-band AGPM over a wide range of spatial scales.

AB - The installation and successful commissioning of an L'-band annular groove phase mask (AGPM) coronagraph on VLT/NACO is presented. The AGPM is a vector vortex coronagraph made from diamond sub-wavelength gratings tuned to the L'-band. The vector vortex coronagraph enables high-contrast imaging at very small inner working angles (here 0.09 arcseconds, the diffraction limit of the VLT at L'), potentially opening up a new parameter space in high-resolution imaging. During technical and science verification runs, we discovered a late-type companion at two beamwidths from an F0V star, and imaged the inner regions of β Pictoris down to the previously unexplored projected radius of 1.75 astronomical units. The circumstellar disc of β Pic was also resolved from 1 to 5 arcseconds. These results showcase the potential of the NACO L'-band AGPM over a wide range of spatial scales.

M3 - Article

SN - 0722-6691

VL - 152

SP - 8

EP - 13

JO - The Messenger

JF - The Messenger

ER -