SIMBAD references

2011MNRAS.414.3557H - Mon. Not. R. Astron. Soc., 414, 3557-3565 (2011/July-2)

Tidal streams in newly discovered M32 analogues: evidence for the stripping scenario.

HUXOR A.P., PHILLIPPS S., PRICE J. and HARNIMAN R.

Abstract (from CDS):

We present two newly discovered compact elliptical (cE) galaxies, exhibiting clear evidence of tidal steams, and found during a search of SDSS DR7 for cE candidates. The structural parameters of the cEs are derived using GALFIT, giving effective radii, Re, of 388 and 263 pc, and B-band mean surface brightnesses within Re of 19.4 and 19.2 mag/arcsec2. We have re-analysed the SDSS spectra, which indicate that they possess young to intermediate-age stellar populations. These two cEs provide direct evidence, a `smoking gun', for the process of tidal stripping that is believed to be the origin of M32-type galaxies. Both are in small groups with a large spiral fraction, suggesting that we may be seeing the formation of such cE galaxies in dynamically young environments. The more compact of the galaxies is found in a small group not unlike the Local Group, and thus it provides an additional model for the understanding of M32.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): galaxies: dwarf - galaxies: formation - galaxies: structure

CDS comments: In chap. 2.2, fig. 3 and Table 1 : III Zw 069 is a misprint for III Zw 97.

Simbad objects: 21

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