2022A&A...658A.126E

Query : 2022A&A...658A.126E

2022A&A...658A.126E - Astronomy and Astrophysics, volume 658A, 126-126 (2022/2-1)

Euclid preparation. XVII. Cosmic Dawn Survey: Spitzer Space Telescope observations of the Euclid deep fields and calibration fields.

EUCLID COLLABORATION, MONETI A., McCRACKEN H.J., SHUNTOV M., KAUFFMANN O.B., CAPAK P., DAVIDZON I., ILBERT O., SCARLATA C., TOFT S., WEAVER J., CHARY R., CUBY J., FAISST A.L., MASTERS D.C., McPARTLAND C., MOBASHER B., SANDERS D.B., SCARAMELLA R., STERN D., SZAPUDI I., TEPLITZ H., ZALESKY L., AMARA A., AURICCHIO N., BODENDORF C., BONINO D., BRANCHINI E., BRAU-NOGUE S., BRESCIA M., BRINCHMANN J., CAPOBIANCO V., CARBONE C., CARRETERO J., CASTANDER F.J., CASTELLANO M., CAVUOTI S., CIMATTI A., CLEDASSOU R., CONGEDO G., CONSELICE C.J., CONVERSI L., COPIN Y., CORCIONE L., COSTILLE A., CROPPER M., DA SILVA A., DEGAUDENZI H., DOUSPIS M., DUBATH F., DUNCAN C.A.J., DUPAC X., DUSINI S., FARRENS S., FERRIOL S., FOSALBA P., FRAILIS M., FRANCESCHI E., FUMANA M., GARILLI B., GILLIS B., GIOCOLI C., GRANETT B.R., GRAZIAN A., GRUPP F., HAUGAN S.V.H., HOEKSTRA H., HOLMES W., HORMUTH F., HUDELOT P., JAHNKE K., KERMICHE S., KIESSLING A., KILBINGER M., KITCHING T., KOHLEY R., KUMMEL M., KUNZ M., KURKI-SUONIO H., LIGORI S., LILJE P.B., LLORO I., MAIORANO E., MANSUTTI O., MARGGRAF O., MARKOVIC K., MARULLI F., MASSEY R., MAUROGORDATO S., MENEGHETTI M., MERLIN E., MEYLAN G., MORESCO M., MOSCARDINI L., MUNARI E., NIEMI S.M., PADILLA C., PALTANI S., PASIAN F., PEDERSEN K., PIRES S., PONCET M., POPA L., POZZETTI L., RAISON F., REBOLO R., RHODES J., RIX H., RONCARELLI M., ROSSETTI E., SAGLIA R., SCHNEIDER P., SECROUN A., SEIDEL G., SERRANO S., SIRIGNANO C., SIRRI G., STANCO L., TALLADA-CRESPI P., TAYLOR A.N., TERENO I., TOLEDO-MOREO R., TORRADEFLOT F., WANG Y., WELIKALA N., WELLER J., ZAMORANI G., ZOUBIAN J., ANDREON S., BARDELLI S., CAMERA S., GRACIA-CARPIO J., MEDINACELI E., MEI S., POLENTA G., ROMELLI E., SUREAU F., TENTI M., VASSALLO T., ZACCHEI A., ZUCCA E., BACCIGALUPI C., BALAGUERA-ANTOLINEZ A., BERNARDEAU F., BIVIANO A., BOLZONELLA M., BOZZO E., BURIGANA C., CABANAC R., CAPPI A., CARVALHO C.S., CASAS S., CASTIGNANI G., COLODRO-CONDE C., COUPON J., COURTOIS H.M., DI FERDINANDO D., FARINA M., FINELLI F., FLOSE-REIMBERG P., FOTOPOULOU S., GALEOTTA S., GANGA K., GARCIA-BELLIDO J., GAZTANAGA E., GOZALIASL G., HOOK I., JOACHIMI B., KANSAL V., KEIHANEN E., KIRKPATRICK C.C., LINDHOLM V., MAINETTI G., MAINO D., MAOLI R., MARTINELLI M., MARTINET N., MATURI M., METCALF R.B., MORGANTE G., MORISSET N., NUCITA A., PATRIZII L., POTTER D., RENZI A., RICCIO G., SANCHEZ A.G., SAPONE D., SCHIRMER M., SCHULTHEIS M., SCOTTEZ V., SEFUSATTI E., TEYSSIER R., TUBIO O., TUTUSAUS I., VALIVIITA J., VIEL M. and HILDEBRANDT H.

Abstract (from CDS):

We present a new infrared survey covering the three Euclid deep fields and four other Euclid calibration fields using Spitzer Space Telescope's Infrared Array Camera (IRAC). We combined these new observations with all relevant IRAC archival data of these fields in order to produce the deepest possible mosaics of these regions. In total, these observations represent nearly 11 % of the total Spitzer Space Telescope mission time. The resulting mosaics cover a total of approximately 71.5 deg2 in the 3.6 and 4.5 µm bands, and approximately 21.8 deg2 in the 5.8 and 8 µm bands. They reach at least 24 AB magnitude (measured to 5σ, in a 2.5" aperture) in the 3.6 µm band and up to ∼5 mag deeper in the deepest regions. The astrometry is tied to the Gaia astrometric reference system, and the typical astrometric uncertainty for sources with 16 < [3.6]< 19 is ≤0.15". The photometric calibration is in excellent agreement with previous WISE measurements. We extracted source number counts from the 3.6 µm band mosaics, and they are in excellent agreement with previous measurements. Given that the Spitzer Space Telescope has now been decommissioned, these mosaics are likely to be the definitive reduction of these IRAC data. This survey therefore represents an essential first step in assembling multi-wavelength data on the Euclid deep fields, which are set to become some of the premier fields for extragalactic astronomy in the 2020s.

Abstract Copyright: © Euclid Collaboration 2022

Journal keyword(s): cosmology: observations - large-scale structure of Universe - dark energy - dark matter - Galaxy: formation - surveys

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME SXDSF reg 02 18 00 -05 00.0           ~ 224 1
2 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2113 1
3 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1705 0
4 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3054 0
5 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1935 1
6 NAME Extended Groth Strip reg 14 19 +52.8           ~ 860 0

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