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The wide-field infrared transient explorer (WINTER)

Lourie, Nathan P. and Baker, John W. and Burruss, Richard S. and Egan, Mark and Fűrész, Gábor and Frostig, Danielle and Garcia-Zych, Allan A. and Ganciu, Nicolae and Haworth, Kari and Hinrichsen, Erik and Kasliwal, Mansi M. and Karambelkar, Viraj R. and Malonis, Andrew and Simcoe, Robert A. and Zolkower, Jeffry (2020) The wide-field infrared transient explorer (WINTER). In: Ground-based and Airborne Instrumentation for Astronomy VIII. Proceedings of SPIE. No.11447. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 114479K. ISBN 9781510636811.

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The Wide-Field Infrared Transient Explorer (WINTER) is a new infrared time-domain survey instrument which will be deployed on a dedicated 1 meter robotic telescope at the Palomar Observatory. WINTER will perform a seeing-limited time domain survey of the infrared (IR) sky, with a particular emphasis on identifying r -process material in binary neutron star (BNS) merger remnants detected by LIGO. We describe the scientific goals and survey design of the WINTER instrument. With a dedicated trigger and the ability to map the full LIGO O4 positional error contour in the IR to a distance of 190 Mpc within four hours, WINTER will be a powerful kilonova discovery engine and tool for multi-messenger astrophysics investigations. In addition to follow-up observations of merging binaries, WINTER will facilitate a wide range of time-domain astronomical observations, all the while building up a deep coadded image of the static infrared sky suitable for survey science. WINTER’s custom camera features six commercial large-format Indium Gallium Arsenide (InGaAs) sensors and a tiled optical system which covers a <1-square-degree field of view with 90% fill factor. The instrument observes in Y, J and a short-H (Hs) band tuned to the long-wave cutoff of the InGaAs sensors, covering a wavelength range from 0.9 – 1.7 microns. We present the design of the WINTER instrument and current progress towards final integration at the Palomar Observatory and commissioning planned for mid-2021.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Kasliwal, Mansi M.0000-0002-5619-4938
Simcoe, Robert A.0000-0003-3769-9559
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). WINTER's construction is made possible by the National Science Foundation under MRI grant number AST-1828470. We also acknowledge significant support from the California Institute of Technology, the Caltech Optical Observatories (COO), the Bruno Rossi Fund of the MIT Kavli Institute for Astrophysics and Space Research, and the MIT Department of Physics and School of Science. The collaboration also acknowledges the ongoing support and contributions to the observatory by the COO staff. Eric Bellm from the University of Washington, Reed Riddle from COO, and Javier Romualdez from Princeton University contributed support and guidance on the WINTER controls software.
Group:Astronomy Department
Funding AgencyGrant Number
Massachusetts Institute of Technology (MIT)UNSPECIFIED
Subject Keywords:WINTER, time-domain, infrared, LIGO, multi-messenger, wide-field, InGaAs detectors, robotic telescopes, kilonova
Series Name:Proceedings of SPIE
Issue or Number:11447
Record Number:CaltechAUTHORS:20210111-082925077
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Official Citation:Nathan P. Lourie, John W. Baker, Richard S. Burruss, Mark Egan, Gábor Fűrész, Danielle Frostig, Allan A. Garcia-Zych, Nicolae Ganciu, Kari Haworth, Erik Hinrichsen, Mansi M. Kasliwal, Viraj R. Karambelkar, Andrew Malonis, Robert A. Simcoe, and Jeffrey Zolkower "The wide-field infrared transient explorer (WINTER)", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114479K (13 December 2020);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107391
Deposited By: Tony Diaz
Deposited On:11 Jan 2021 17:05
Last Modified:11 Jan 2021 17:05

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