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2007ApJS..172..511S - Astrophys. J., Suppl. Ser., 172, 511-517 (2007/September-0)
A potential galaxy threshing system in the COSMOS field.
SASAKI S.S., TANIGUCHI Y., SCOVILLE N., MOBASHER B., AUSSEL H., SANDERS D.B., KOEKEMOER A., AJIKI M., KOMIYAMA Y., MIYAZAKI S., KAIFU N., KAROJI H., OKAMURA S., ARIMOTO N., OHTA K., SHIOYA Y., MURAYAMA T., NAGAO T., KODA J., HAINLINE L., RENZINI A., GIAVALISCO M., LE FEVRE O., IMPEY C., ELVIS M., LILLY S., RICH M., SCHINNERER E. and SHETH K.
Abstract (from CDS):
We report on the discovery of a new potential galaxy threshing system in the COSMOS 2 square degree field using the prime-focus camera, Suprime-Cam, on the 8.2 m Subaru Telescope. This system consists of a giant elliptical galaxy with MV~-21.6 and a tidally disrupted satellite galaxy with MV~-17.7 at a photometric redshift of z~0.08. This redshift is consistent with the spectroscopic redshift of 0.079 for the giant elliptical galaxy obtained from the Sloan Digital Sky Survey (SDSS) archive. The luminosity masses of the two galaxies are 3.7x1012 and 3.1x109 M☉, respectively. The distance between the two galaxies is greater than 100 kpc. The two tidal tails emanating from the satellite galaxy extend over 150 kpc. This system would be the second well-defined galaxy threshing system found so far.
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Evolution - Galaxies: Interactions
Nomenclature: Table 1: [STS2007] Galaxy A (Nos A-B).
Simbad objects: 5
