other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2013MNRAS.432..374R - Mon. Not. R. Astron. Soc., 432, 374-403 (2013/June-2)
A Spitzer-IRS spectroscopic atlas of early-type galaxies in the revised shapley-ames catalog.
RAMPAZZO R., PANUZZO P., VEGA O., MARINO A., BRESSAN A. and CLEMENS M.S.
Abstract (from CDS):
A demographic study of mid-infrared spectra shows that Es are significantly more passive than S0s: 46^+11_-10 per cent of Es and 20^+11_-7 per cent of S0s have a spectrum of class-0. Emission lines are revealed in 64^+12_-6 per cent of ETGs. The H2S(1) line is found with similar rate in Es (34^+10_-8 per cent) and in S0s (51^+15_-12 per cent). PAHs are detected in 47^+8_-7 per cent of ETGs, but only 9^+4_-3 per cent have PAH ratios typical of star-forming galaxies.
Several indicators, such as peculiar morphologies and kinematics, the irregular shape of dust-lanes, and radio and X-ray properties, suggest that mid-infrared spectral classes are associated with phases of accretion/feedback phenomena occurring in the nuclei of ETGs.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): techniques: spectroscopic - galaxies: elliptical and lenticular, cD - galaxies: fundamental parameters - infrared: galaxies
Simbad objects: 103
To bookmark this query, right click on this link: simbad:2013MNRAS.432..374R and select 'bookmark this link' or equivalent in the popup menu