SIMBAD references

2010A&A...519A..59B - Astronomy and Astrophysics, volume 519, A59-59 (2010/9-1)

The mid-UV population of the nucleus and the bulk of the post-merger NGC 3610.


Abstract (from CDS):

The very center (r≪re) of NGC 3610, a clearly disturbed giant elliptical that is generally assumed to be a post-merger remnant, appears dominated in the mid-UV (2500-3200Å spectral region) by a stellar population that is markedly different from that dominating the bulk of its stellar body. We make use of the mid-UV spectra of NGC 3610 as seen through tiny (∼1'') and large (10''x20'') apertures as a diagnostic population tool. We compare archive IUE/LWP large aperture and HST/FOS UV data of NGC3610. The strength of mid-UV triplet (dominated by the turnoff population) shows a remarkable drop when switching from the galaxy central arcsec (FOS aperture) to an aperture size comparable to ∼0.5re (IUE). The sub-arsec (mid)-UV properties of this galaxy involved in a past merger reveal a central metal enrichment which left the bulk of its pre-existing population intact.

Abstract Copyright:

Journal keyword(s): galaxies: general - galaxies: elliptical and lenticular, cD - galaxies: individual: NGC 3610 - galaxies: interactions

Simbad objects: 3

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