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The Roasting Marshmallows Program with IGRINS on Gemini South I: Composition and Climate of the Ultra Hot Jupiter WASP-18 b

(2022)

Authors:

Matteo Brogi, Vanessa Emeka-Okafor, Michael R Line, Siddharth Gandhi, Lorenzo Pino, Eliza M-R Kempton, Emily Rauscher, Vivien Parmentier, Jacob L Bean, Gregory N Mace, Nicolas B Cowan, Evgenya Shkolnik, Joost P Wardenier, Megan Mansfield, Luis Welbanks, Peter Smith, Jonathan J Fortney, Jayne L Birkby, Joseph A Zalesky, Lisa Dang, Jennifer Patience, Jean-Michel Désert
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VLT/CRIRES Science Verification Observations: A hint of C18O in the Young Brown Dwarf 2M0355

Research Notes of the American Astronomical Society IOP Publishing 6:9 (2022) 194-194

Authors:

Yapeng Zhang, Ignas AG Snellen, Matteo Brogi, Jayne L Birkby

Abstract:

Stars and planetary system
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Kiloparsec view of a typical star-forming galaxy when the Universe was similar to 1 Gyr old II. Regular rotating disk and evidence for baryon dominance on galactic scales

ASTRONOMY & ASTROPHYSICS 665 (2022) ARTN L8

Authors:

R Herrera-Camus, NM Foerster Schreiber, SH Price, H Ubler, AD Bolatto, RL Davies, D Fisher, R Genzel, D Lutz, T Naab, A Nestor, T Shimizu, A Sternberg, L Tacconi, K Tadaki
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HARMONI at ELT: prototyping for Single-Conjugate AO Sensor subsystem

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 12185 (2022) 121854y-121854y-11

Authors:

K El Hadi, JF Sauvage, K Dohlen, E Renault, W Bon, P Vola, T Crauchet, L Guemerle, F Madec, D Le Mignant, B Neichel, T Fusco, F Clarke, D Melotte, M Tecza, N Thatte, J Amiaux, J Paufique
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WALOP-South: a four-camera one-shot imaging polarimeter for PASIPHAE survey. Paper II – polarimetric modeling and calibration

Journal of Astronomical Telescopes, Instruments, and Systems SPIE-Intl Soc Optical Eng 8:03 (2022) 1-28

Authors:

Siddharth Maharana, Ramya M Anche, Anamparambu N Ramaprakash, Bhushan Joshi, Artem Basyrov, Dmitry Blinov, Carolina Casadio, Kishan Deka, Hans Kristian Eriksen, Tuhin Ghosh, Eirik Gjerløw, John A Kypriotakis, Sebastian Kiehlmann, Nikolaos Mandarakas, Georgia V Panopoulou, Katerina Papadaki, Vasiliki Pavlidou, Timothy J Pearson, Vincent Pelgrims, Stephen B Potter, Anthony CS Readhead, Raphael Skalidis, Trygve Leithe Svalheim, Konstantinos Tassis, Ingunn K Wehus

Abstract:

The Wide-Area Linear Optical Polarimeter (WALOP)-South instrument is an upcoming wide-field and high accuracy optical polarimeter to be used as a survey instrument for carrying out the Polar-Areas Stellar Imaging in Polarization High-Accuracy Experiment program. Designed to operate as a one-shot four-channel and four-camera imaging polarimeter, it will have a field of view of 35 × 35 arcminutes and will measure the Stokes parameters I, q, and u in a single exposure in the Sloan Digital Sky Survey-r broadband filter. The design goal for the instrument is to achieve an overall polarimetric measurement accuracy of 0.1% over the entire field of view. We present here the complete polarimetric modeling of the instrument, characterizing the amount and sources of instrumental polarization. To accurately retrieve the real Stokes parameters of a source from the measured values, we have developed a calibration method for the instrument. Using this calibration method and simulated data, we demonstrate how to correct for instrumental polarization and obtain 0.1% accuracy in degree of polarization, p. In addition, we tested and validated the calibration method by implementing it on a table-top WALOP like test-bed polarimeter in the laboratory.
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