SIMBAD references

2005ApJ...619L.103L - Astrophys. J., 619, L103-L106 (2005/January-3)

The look-back time evolution of far-ultraviolet flux from elliptical galaxies: the Fornax cluster and A2670.

LEE Y.-W., REE C.H., RICH R.M., DEHARVENG J.-M., SOHN Y.-J., REY S.-C., YI S.K., YOON S.-J., BIANCHI L., LEE J.-W., SEIBERT M., BARLOW T.A., BYUN Y.-I., DONAS J., FORSTER K., FRIEDMAN P.G., HECKMAN T.M., JEE M.J., JELINSKY P.N., KIM S.-W., MADORE B.F., MALINA R.F., MARTIN D.C., MILLIARD B., MORRISSEY P., NEFF S.G., RHEE J., SCHIMINOVICH D., SIEGMUND O.H.W., SMALL T., SZALAY A.S., WELSH B.Y. and WYDER T.K.

Abstract (from CDS):

In order to investigate the origin of the far-UV (FUV) flux from the early-type galaxies, the Galaxy Evolution Explorer is collecting the UV data for the elliptical-rich clusters at moderate redshifts (z<0.2) where the dominant FUV source is predicted to be hot horizontal-branch (HB) stars and their post-HB progeny. Here we present our first result for the early-type galaxies in A2670 at z=0.076. Compared to NGC 1399, a nearby giant elliptical galaxy in the Fornax Cluster, it appears that the rest-frame FUV-V color of the giant elliptical galaxies gets redder by ∼0.7 mag at the distance of A2670 (z=0.076; look-back time~1.0 Gyr). Although a detailed comparison with the models is postponed until more cluster data are accumulated, it is interesting to note that this value is consistent with the variation predicted by the population synthesis models where the mean temperature of HB stars declines rapidly with increasing look-back time.

Abstract Copyright:

Journal keyword(s): Galaxies: Evolution - Galaxies: Stellar Content - Ultraviolet: Galaxies

CDS comments: Parag. 3 : Galaxy 375 in CLG 1358+62 = [FFF98] 375, DG 269 in ClG 0016+16 = [DG92] 8-269, in fig.1 the galaxies are [FBD2002] ACO 2670 aNN

Simbad objects: 24

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