The wide-field infrared transient explorer (WINTER) by Lourie, Nathan P, Baker, John W, Burruss, Richard S, Egan, Mark D, Furész, Gábor, Frostig, Danielle, Garcia-Zych, Allan A, Ganciu, Nicolae, Haworth, Kari, Hinrichsen, Erik, Kasliwal, Mansi M, Karambelkar, Viraj R, Malonis, Andrew, Simcoe, Robert A, Zolkower, Jeffry N

“…We present the design of the WINTER instrument and current progress towards final integration at Palomar Observatory and commissioning planned for mid-2021.…”
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ARCONS: a 1024 pixel superconducting integral field spectrograph by O'Brien, K, Mazin, B, McHugh, S, Meeker, S, Marsden, D, Bumble, B

“…ARCONS, the Array Camera for Optical to Near-infrared Spectrophotometry, was recently commissioned at the Coudé focus of the 200-inch Hale Telescope at the Palomar Observatory. At the heart of this unique instrument is a 1024-pixel Microwave Kinetic Inductance Detector (MKID), exploiting the Kinetic Inductance effect to measure the energy of the incoming photon to better than several percent. …”

Detector architecture of the wide-field infrared transient explorer (WINTER) InGaAs camera by Malonis, Andrew, Lourie, Nathan, Furész, Gábor, Frostig, Danielle, Hinrichsen, Erik, Simcoe, Robert A

“…We present the InGaAs detector system of the Wide-Field Infrared Transient Explorer (WINTER), a new infrared instrument operating on a 1 meter robotic telescope at the Palomar Observatory. These commercially produced sensors are cooled to -50 °C by a thermo-electric cooler integrated into a room temperature package. …”
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Real-Time Detection and Rapid Multiwavelength Follow-up Observations of a Highly Subluminous Type II-P Supernova from the Palomar Transient Factory Survey by Gal-Yam, A, Kasliwal, M, Arcavi, I, Green, Y, Yaron, O, Ben-Ami, S, Xu, D, Sternberg, A, Quimby, R, Kulkarni, SR, Ofek, E, Walters, R, Nugent, P, Poznanski, D, Bloom, J, Cenko, S, Filippenko, A, Li, W, Silverman, J, Walker, E, Sullivan, M, Maguire, K, Howell, D, Mazzali, P, Frail, D

“…The Palomar Transient Factory (PTF) is an optical wide-field variability survey carried out using a camera with a 7.8 square degree field of view mounted on the 48-in Oschin Schmidt telescope at Palomar Observatory. One of the key goals of this survey is to conduct high-cadence monitoring of the sky in order to detect optical transient sources shortly after they occur. …”

Exploring the Optical Transient Sky with the Palomar Transient Factory by Rau, A, Kulkarni, SR, Law, N, Bloom, J, Ciardi, D, Djorgovski, G, Fox, D, Gal-Yam, A, Grillmair, C, Kasliwal, M, Nugent, P, Ofek, E, Quimby, R, Reach, W, Shara, M, Bildsten, L, Cenko, S, Drake, A, Filippenko, A, Helfand, D, Helou, G, Howell, D, Poznanski, D, Sullivan, M

“…PTF uses the CFH12k mosaic camera, with a field of view of 7.9 deg^2 and a plate scale of 1 asec/pixel, mounted on the the Palomar Observatory 48-inch Samuel Oschin Telescope. The PTF operation strategy is devised to probe the existing gaps in the transient phase space and to search for theoretically predicted, but not yet detected, phenomena, such as fallback supernovae, macronovae, .Ia supernovae and the orphan afterglows of gamma-ray bursts. …”

Wide-field dynamic astronomy in the near-infrared with Palomar Gattini-IR and DREAMS

“…Palomar Gattini-IR, a 25 square degree J-band imager that begun science operations at Palomar Observatory, USA in October 2018; we report on survey strategy as well as telescope and observatory operations and will also providing initial science results. …”
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The SuperCOSMOS all-sky galaxy catalogue by Peacock, J, Hambly, N, Bilicki, M, MacGillivray, H, Miller, L, Read, M, Tritton, S

“…We describe the construction of an all-sky galaxy catalogue, using SuperCOSMOS scans of Schmidt photographic plates from theUKSchmidt Telescope and Second Palomar Observatory Sky Survey. The photographic photometry is calibrated using Sloan Digital Sky Survey data, with results that are linear to 2 per cent or better. …”

Opening the dynamic infrared sky by Kasliwal, Mansi M., Lau, Ryan M., De, Kishalay, Travouillon, Tony D., Jones, Mike, Jencson, Jacob E., Ashley, Michael, Burnham, Jill A., Antoszewski, Jarek, Heger, Alexander, Spitler, Lee, Simcoe, Robert, Soon, Jamie, Moore, Anna, Ofek, Eran, Smith, Roger, Terebizh, Valery, McKenna, Dan, Hale, David, Delacroix, Alex, Adams, Scott M., Sokoloski, Jennifer L., Bland-Hawthorn, Joss, Freeman, Ken, De Marco, Orsola, Cooke, Jeff, Bland, Phil, Ryder, Stuart, Soria, Roberto

“…To address these challenges, Palomar Gattini-IR is currently under construction at Palomar Observatory and we propose a further low risk, economical, and agile instrument to be located at Siding Spring Observatory, as well as further instruments which will be located at the high polar regions to take advantage of the low thermal sky emission, particularly in the 2.5 micron region.…”
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The Wide-Field Infrared Transient Explorer (WINTER): a new near-infrared time-domain survey by Frostig, Danielle

“…In this thesis, I present the design, build, and early operations of the new WINTER instrument, which was installed on a dedicated 1-meter robotic telescope at Palomar Observatory in June of 2023. WINTER’s science goals include robotic follow-up of kilonovae from binary neutron star (BNS) and neutron-star black-hole (NSBH) mergers, surveys to study galactic and extragalactic transients and variables, and building up a deep coadded image of the near-infrared sky. …”
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Disks around Young Planetary-mass Objects: Ultradeep Spitzer Imaging of NGC 1333 by Aleks Scholz, Koraljka Muzic, Ray Jayawardhana, Victor Almendros-Abad, Isaac Wilson

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An Infrared Search for Kilonovae with the WINTER Telescope. I. Binary Neutron Star Mergers by Frostig, Danielle, Biscoveanu, Sylvia, Mo, Geoffrey, Karambelkar, Viraj, Dal Canton, Tito, Chen, Hsin-Yu, Kasliwal, Mansi, Katsavounidis, Erik, Lourie, Nathan P, Simcoe, Robert A, Vitale, Salvatore

“…WINTER will observe in the near-infrared Y, J, and short-H bands (0.9–1.7 μm, to JAB = 21 mag) on a dedicated 1 m telescope at Palomar Observatory. To date, most prompt kilonova follow-up has been in optical wavelengths; however, near-infrared emission fades more slowly and depends less on geometry and viewing angle than optical emission. …”
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Design requirements for the Wide-field Infrared Transient Explorer (WINTER) by Frostig, Danielle, Baker, John W, Brown, Joshua, Burruss, Rick, Clark, Kristin, Furész, Gábor, Ganciu, Nicolae, Hinrichsen, Erik, Karambelkar, Viraj R, Kasliwal, Mansi M, Lourie, Nathan P, Malonis, Andrew, Simcoe, Robert A, Zolkower, Jeffry N

“…The Wide-field Infrared Transient Explorer (WINTER) is a 1x1 degree infrared survey telescope under development at MIT and Caltech, and slated for commissioning at Palomar Observatory in 2021. WINTER is a seeing-limited infrared time-domain survey and has two main science goals: (1) the discovery of IR kilonovae and r-process materials from binary neutron star mergers and (2) the study of general IR transients, including supernovae, tidal disruption events, and transiting exoplanets around low mass stars. …”
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Constraining the Densities of the Three Kepler-289 Planets with Transit Timing Variations by Michael Greklek-McKeon, Heather A. Knutson, Shreyas Vissapragada, Daniel Jontof-Hutter, Yayaati Chachan, Daniel Thorngren, Gautam Vasisht

“…We observe two transits of Kepler-289c with the Wide-field InfraRed Camera on the 200″ Hale Telescope at Palomar Observatory, using diffuser-assisted photometry to achieve space-like photometric precision from the ground. …”
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A 2R[subscript ⊕] Planet Orbiting the Bright Nearby K Dwarf Wolf 503 by Peterson, Merrin S., Benneke, Björn, David, Trevor J., Dressing, Courtney D., Ciardi, David, Schlieder, Joshua E., Petigura, Erik A., Mamajek, Eric E., Christiansen, Jessie L., Quinn, Sam N., Fulton, Benjamin J., Howard, Andrew W., Sinukoff, Evan, Beichman, Charles, Latham, David W., Yu, Liang, Arango, Nicole, Shporer, Avi, Henning, Thomas, X. Huang, Chelsea, Kosiarek, Molly R., Dittmann, Jason, Isaacson, Howard, Crossfield, Ian Jm

“…We determine the possibility of a companion star and false positive detection to be extremely low using both archival images and high-contrast adaptive optics images from the Palomar observatory. The brightness of the host star makes Wolf 503b a prime target for prompt radial velocity follow-up, and with the small stellar radius (0.690 ± 0.025R [subscript ⊕]), it is also an excellent target for HST transit spectroscopy and detailed atmospheric characterization with JWST. …”
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