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HARMONI - first light spectroscopy for the ELT: novel techniques for the calibration of non-common path aberrations

SPIE, the international society for optics and photonics (2020) 349

Authors:

Alvaro Menduina, Matthias Tecza, Niranjan Thatte

HARMONI first light spectroscopy for the ELT: geometrical calibration in the data reduction software

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 11452 (2020) 114522t-114522t-16

Authors:

Laure Piqueras, Aur茅lien Jarno, Louise Friot-Giroux, Thomas B茅chet, Javier Piqueras L贸pez, Arlette P茅contal, Johan Richard, Nicolas Bouch茅, Niranjan A Thatte, Matthias Tecza

HARMONI: Characterising the line-spread-function with a tunable Fabry-P茅rot etalon

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 11451 (2020) 114515w-114515w-6

Authors:

Darshan Kakkad, Matthias Tecza, Niranjan A Thatte, Javier Piqueras L贸pez, Harry Kendell

WALOP-South: A wide-field one-shot linear optical polarimeter for PASIPHAE survey

Ground-based and Airborne Instrumentation for Astronomy VIII SPIE (2020) 24-24

Authors:

Siddharth Maharana, John A Kypriotakis, Anamparambu N Ramaprakash, Pravin Khodade, Chaitanya V Rajarshi, Bhushan S Joshi, Pravin A Chordia, Ramya Anche, Shrish Mishra, Dmitry Blinov, Hans Kristian Eriksen, Tuhin Ghosh, Eirik Gjerl酶w, Nikolaos Mandarakas, Georgia V Panopoulou, Vasiliki Pavlidou, Timothy J Pearson, Vincent Pelgrims, Stephen Potter, Anthony CS Readhead, Raphail Skalidis, Konstantinos Tassis, Ingunn K Wehus

A Spitzer survey of Deep Drilling Fields to be targeted by the Vera C. Rubin Observatory Legacy Survey of Space and Time

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) (2020)

Authors:

M Lacy, Ja Surace, D Farrah, K Nyland, J Afonso, Wn Brandt, Dl Clements, Cdp Lagos, C Maraston, J Pforr, A Sajina, M Sako, M Vaccari, G Wilson, Dr Ballantyne, Wa Barkhouse, R Brunner, R Cane, Te Clarke, M Cooper, A Cooray, G Covone, C D'Andrea, Ae Evrard, V Gonzalez-Perez

Abstract:

The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe several Deep Drilling Fields (DDFs) to a greater depth and with a more rapid cadence than the main survey. In this paper, we describe the ``DeepDrill'' survey, which used the Spitzer Space Telescope Infrared Array Camera (IRAC) to observe three of the four currently defined DDFs in two bands, centered on 3.6 $\mu$m and 4.5 $\mu$m. These observations expand the area which was covered by an earlier set of observations in these three fields by the Spitzer Extragalactic Representative Volume Survey (SERVS). The combined DeepDrill and SERVS data cover the footprints of the LSST DDFs in the Extended Chandra Deep Field-South field (ECDFS), the ELAIS-S1 field (ES1), and the XMM Large-Scale Structure Survey field (XMM-LSS). The observations reach an approximate $5\sigma$ point-source depth of 2 $\mu$Jy (corresponding to an AB magnitude of 23.1; sufficient to detect a 10$^{11} M_{\odot}$ galaxy out to $z\approx 5$) in each of the two bands over a total area of $\approx 29\,$deg$^2$. The dual-band catalogues contain a total of 2.35 million sources. In this paper we describe the observations and data products from the survey, and an overview of the properties of galaxies in the survey. We compare the source counts to predictions from the SHARK semi-analytic model of galaxy formation. We also identify a population of sources with extremely red ([3.6]$-$[4.5] $>1.2$) colours which we show mostly consists of highly-obscured active galactic nuclei.