2017MNRAS.470...95M

Query : 2017MNRAS.470...95M

2017MNRAS.470...95M - Mon. Not. R. Astron. Soc., 470, 95-113 (2017/September-1)

CLASH: accurate photometric redshifts with 14 HST bands in massive galaxy cluster cores.

MOLINO A., BENITEZ N., ASCASO B., COE D., POSTMAN M., JOUVEL S., HOST O., LAHAV O., SEITZ S., MEDEZINSKI E., ROSATI P., SCHOENELL W., KOEKEMOER A., JIMENEZ-TEJA Y., BROADHURST T., MELCHIOR P., BALESTRA I., BARTELMANN M., BOUWENS R., BRADLEY L., CZAKON N., DONAHUE M., FORD H., GRAUR O., GRAVES G., GRILLO C., INFANTE L., JHA S.W., KELSON D., LAZKOZ R., LEMZE D., MAOZ D., MERCURIO A., MENEGHETTI M., MERTEN J., MOUSTAKAS L., NONINO M., ORGAZ S., RIESS A., RODNEY S., SAYERS J., UMETSU K., ZHENG W. and ZITRIN A.

Abstract (from CDS):

We present accurate photometric redshifts for galaxies observed by the Cluster Lensing And Supernova survey with Hubble (CLASH). CLASH observed 25 massive galaxy cluster cores with the Hubble Space Telescope in 16 filters spanning 0.2-1.7 µm. Photometry in such crowded fields is challenging. Compared to our previously released catalogues, we make several improvements to the photometry, including smaller apertures, intracluster light subtraction, point spread function matching and empirically measured uncertainties. We further improve the Bayesian photometric redshift estimates by adding a redder elliptical template and by inflating the photometric uncertainties of the brightest galaxies. The resulting photometric redshift accuracies are dz/(1+z) ∼ 0.8, 1.0 and 2.0 per cent for galaxies with I-band F814W AB magnitudes < 18, 20 and 23, respectively. These results are consistent with our expectations. They improve on our previously reported accuracies by a factor of 4 at the bright end and a factor of 2 at the faint end. Our new catalogue includes 1257 spectroscopic redshifts, including 382 confirmed cluster members. We also provide stellar mass estimates. Finally, we include lensing magnification estimates of background galaxies based on our public lens models. Our new catalogue of all 25 CLASH clusters is available via Mikulski Archive for Space Telescopes. The analysis techniques developed here will be useful in other surveys of crowded fields, including the Frontier Fields and surveys carried out with Javalambre-Physics of the Accelerated Universe Astrophysical Survey and James Webb Space Telescope.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): catalogues - galaxies: clusters: general - galaxies: distances and redshifts - galaxies: clusters: intracluster medium - galaxies: photometry - ultraviolet: galaxies - ultraviolet: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/470/95): table1.dat a383.dat a209.dat a1423.dat a2261.dat rxj2129.dat a611.dat ms2137.dat rxj1532.dat rxj2248.dat macs1931.dat macs1115.dat macs1720.dat macs0429.dat macs0416.dat macs1206.dat macs0329.dat rxj1347.dat macs1311.dat macs1423.dat macs1149.dat macs0717.dat macs2129.dat macs0647.dat macs0744.dat clj1226.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 27

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Number of rows : 27
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 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 295 0
2 ACO 383 ClG 02 48 03.3915 -03 31 45.228           ~ 359 0
3 ClG J0329-0212 ClG 03 29 41.6 -02 11 47           ~ 142 0
4 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1666 0
5 MCS J0416.1-2403 ClG 04 16 08.380 -24 04 20.80           ~ 336 0
6 ClG J0429-0253 ClG 04 29 36.0 -02 53 09           ~ 123 0
7 ClG J0647+7015 ClG 06 47 50.0 +70 14 55           ~ 153 0
8 ClG J0717+3745 ClG 07 17 36.50 +37 45 23.0           ~ 463 0
9 ClG J0744+3927 ClG 07 44 52.5 +39 27 30           ~ 181 0
10 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 258 0
11 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2974 0
12 MCS J1115.8+0129 ClG 11 15 52.1 +01 29 53           ~ 131 0
13 MCS J1149.5+2223 ClG 11 49 35.8 +22 23 55           ~ 460 0
14 ACO 1423 ClG 11 57 17.3206 +33 36 39.364           ~ 168 0
15 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 246 0
16 ClG J1226+3332 ClG 12 26 57.7 +33 32 50           ~ 215 0
17 ClG J1311-0311 ClG 13 11 01.7 -03 10 38           ~ 109 0
18 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 548 0
19 ClG J1423+2404 ClG 14 23 47.7 +24 04 40           ~ 209 0
20 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 145 0
21 ClG J1720+3536 ClG 17 20 16.8 +35 36 27           ~ 141 1
22 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 342 0
23 ClG J1931-2635 ClG 19 31 49.6 -26 34 33           ~ 161 0
24 ClG J2129-0741 ClG 21 29 26.0 -07 41 28           ~ 172 0
25 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 271 0
26 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 378 0
27 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 320 0

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