2007ApJS..173..607R

Query : 2007ApJS..173..607R

2007ApJS..173..607R - Astrophys. J., Suppl. Ser., 173, 607-618 (2007/December-0)

The look-back time evolution of far-ultraviolet flux from the brightest cluster elliptical galaxies at z < 0.2.

REE C.H., LEE Y.-W., YI S.K., YOON S.-J., RICH R.M., DEHARVENG J.-M., SOHN Y.-J., KAVIRAJ S., RHEE J., SHEEN Y.-K., SCHAWINSKI K., REY S.-C., BOSELLI A., RHEE J., DONAS J., SEIBERT M., WYDER T.K., BARLOW T.A., BIANCHI L., FORSTER K., FRIEDMAN P.G., HECKMAN T.M., MADORE B.F., MARTIN D.C., MILLIARD B., MORRISSEY P., NEFF S.G., SCHIMINOVICH D., SMALL T., SZALAY A.S. and WELSH B.Y.

Abstract (from CDS):

We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z<0.2) for the study of the look-back time evolution of the UV upturn phenomenon. The brightest elliptical galaxies (Mr≲-22) in 12 remote clusters are compared with the nearby giant elliptical galaxies of comparable optical luminosity in the Fornax and Virgo clusters. The sample galaxies presented here appear to be quiescent without signs of massive star formation or strong nuclear activity and show smooth, extended profiles in their UV images, indicating that the far-UV (FUV) light is mostly produced by hot stars in the underlying old stellar population. Compared to their counterparts in nearby clusters, the FUV flux of cluster giant elliptical galaxies at moderate redshifts fades rapidly with ∼2 Gyr of look-back time, and the observed pace in FUV-V color evolution agrees reasonably well with the prediction from the population synthesis models where the dominant FUV source is hot horizontal-branch stars and their progeny. A similar amount of color spread (∼1 mag) in FUV-V exists among the brightest cluster elliptical galaxies at z∼0.1, as observed among the nearby giant elliptical galaxies of comparable optical luminosity.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Evolution - Galaxies: Stellar Content - Ultraviolet: Galaxies

Simbad objects: 32

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Number of rows : 32
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 389 ClG 02 51 24.74 -24 56 39.5           ~ 69 0
2 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
3 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
4 NGC 1404 rG 03 38 51.917 -35 35 39.81 11.53 10.69 10.00 9.03   ~ 787 1
5 ACO 3330 ClG 05 14 47.4 -49 04 19           ~ 36 2
6 ACO 733 ClG 09 01 28.69 +55 38 36.8           ~ 32 0
7 NVSS J090129+553921 rG 09 01 30.1423157040 +55 39 16.537059648           ~ 23 2
8 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
9 SDSS J101350.78+344251.1 BiC 10 13 50.7821984928 +34 42 51.065835984           ~ 9 1
10 ACO 951 ClG 10 14 01.6 +34 42 18           ~ 23 0
11 ACO 1406 ClG 11 53 05.3 +67 53 51           ~ 23 0
12 2MASX J11530531+6753513 BiC 11 53 05.3176700688 +67 53 51.531973620           ~ 12 1
13 M 84 Sy2 12 25 03.74333 +12 53 13.1393 12.67 12.09 10.49     ~ 1841 2
14 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1126 1
15 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
16 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
17 M 89 Sy2 12 35 39.80733343 +12 33 22.8308657 11.29 10.73 9.75     ~ 1037 2
18 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
19 NVSS J145058+311743 rG 14 50 58.7118042552 +31 17 41.977908960           ~ 16 1
20 ACO 1979 ClG 14 51 00 +31 16.7           ~ 15 0
21 ACO 2048 ClG 15 15 14.11 +04 23 10.4           ~ 109 0
22 2MASX J15151408+0423105 BiC 15 15 14.1126294672 +04 23 10.383865080           ~ 15 1
23 2MASX J16544329+4002460 BiC 16 54 43.2787468560 +40 02 46.424481828           ~ 9 1
24 ACO 2235 ClG 16 54 44.5 +40 02 51           ~ 35 0
25 ACO 2249 ClG 17 09 36.76 +34 28 04.1           ~ 136 0
26 LEDA 3412952 GiC 17 09 43.7600176320 +34 24 25.524582840           ~ 8 1
27 ACO 2399 ClG 21 57 19.01 -07 50 57.5           ~ 197 0
28 2MASX J21572939-0747443 BiC 21 57 29.42547 -07 47 44.4930   15.89   14.69   ~ 38 1
29 PKS J2231-0824 rG 22 31 43.1912037984 -08 24 31.870802808   15.59 15.5 14.22   ~ 45 2
30 ACO 2448 ClG 22 32 00.59 -08 25 29.5           ~ 43 0
31 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 364 0
32 2MASX J23541371-1025084 LIN 23 54 13.6827414192 -10 25 08.481024912   15.32       ~ 55 2

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