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

M. Lacy (1); J.A. Surace (2); D. Farrah (3,4); K. Nyland (5); J.; Afonso (6,7); W.N. Brandt (8,9,10); D.L. Clements (11); C.D.P. Lagos; (12,13,14); C. Maraston (15); J. Pforr (16); A. Sajina (17); M. Sako (18); M.; Vaccari (19,20); G. Wilson (21); D.R. Ballantyne (22); W.A. Barkhouse (23),; R. Brunner (18); R. Cane (18); T.E. Clarke (24); M. Cooper (25); A. Cooray; (25); G. Covone (26); C. D'Andrea (18); A.E. Evrard (27,28); H.C. Ferguson; (29); J. Frieman (30,31); V. Gonzalez-Perez (15,32); R. Gupta (18); E.; Hatziminaoglou (33); J. Huang (34,35,36); P. Jagannathan (37); M.J. Jarvis; (19,38) K.M. Jones (39); A. Kimball (37); C. Lidman (40); L. Lubin (41); L.; Marchetti (42,19,20); P. Martini (43,44); R.G. McMahon (45); S. Mei (46,47),; H. Messias (48); E.J. Murphy (1); J.A. Newman (49); R. Nichol (15); R.P.; Norris (50); S. Oliver (51); I. Perez-Fournon (52,53); W.M. Peters (24); M.; Pierre (54); E. Polisensky (24); G.T. Richards (55); S.E. Ridgway (56),; H.J.A. R\"ottgering (57); N. Seymour (58); R. Shirley (51,52); R. Somerville; (59); M.A. Strauss (60); N. Suntzeff (61); P.A. Thorman (62); E. van Kampen; (33); A. Verma (38); R. Wechsler (63); W.M. Wood-Vasey (64) ((1) NRAO,; Charlottesville; (2) IPAC; Caltech; (3) Dept of Physics; Astronomy,; Hawaii; (4) IfA; Hawaii; (5) NRC Fellow (resident at NRL); (6) Inst. de; Astrophysica; Lisbon; (7) Dept of Physics; Lisbon; (8) Dept. of Astronomy &; Astrophysics; Penn State; (9) IGC; Penn State; (10); Dept. of Physics; Penn; State; (11) Imperial College; (12) ICRAR; (13) ASTRO-3D; (14) DAWN; (15) ICG,; Portsmouth; (16) ESTEC; (17) Tufts; (18) UPenn; (19) Western Cape; (20) INAF,; (21) UC Riverside; (22) Georgia Tech; (23) North Dakota; (24) NRL; (25) UC; Irvine; (26) Naples; (27) Dept. of Physics; Michigan; (28) Dept. of; Astronomy; Michigan; (29) STScI; (30) Chicago; (31) Fermilab; (32) Liverpool; JMU; (33) ESO Garching; (34) NAOC; (35) China-Chile Joint Center for; Astronomy; (36) CfA Harvard; (37) NRAO; Socorro; (38) Oxford; (39) Kansas,; (40) AAO; (41) UC Davis; (42) Cape Town; (43) Ohio State; (44) Dept. of; Astronomy; Ohio State; (45) Cambridge; (46) LERMA/PSL U. Paris; (47) JPL,; (48) Joint ALMA Observatory; (49) Pittsburgh; (50) Western Sydney; (51); Sussex; (52) IAC; (53) La Laguna; (54) U. Paris-Saclay (55) Drexel; (56); NOIRLab; (57) Leiden; (58) Curtin; (59) Flatiron; (60) Princeton; (61) Texas; A&M; (62) Haverford; (63) Stanford; (64) Pitt-PACC)

arXiv:2011.15030·astro-ph.GA·December 1, 2020

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

M. Lacy (1), J.A. Surace (2), D. Farrah (3,4), K. Nyland (5), J., Afonso (6,7), W.N. Brandt (8,9,10), D.L. Clements (11), C.D.P. Lagos, (12,13,14), C. Maraston (15), J. Pforr (16), A. Sajina (17), M. Sako (18), M., Vaccari (19,20), G. Wilson (21), D.R. Ballantyne (22)

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TL;DR

This paper details the DeepDrill survey using Spitzer IRAC to observe Deep Drilling Fields for LSST, providing extensive infrared data, source catalogs, and insights into galaxy populations and obscured AGN.

Contribution

It introduces the DeepDrill survey, expanding infrared coverage of LSST Deep Drilling Fields with new data and analysis of galaxy and AGN populations.

Findings

01

Survey covers 29 deg² with 2.35 million sources.

02

Detected galaxies up to z≈5 with 2 μJy depth.

03

Identified a population of highly-obscured active galactic nuclei.

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 $μ$ m and 4.5 $μ$ 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 $5 σ$ point-source depth of 2 $μ$ Jy…

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