Galaxy evolution: The ISOCAM view

Authors
Vigroux, L Aussel, H Charmandaris, V Cesarsky, C Elbaz, D Fadda, D Laurent, O Madden, S Mirabel, F Roussel, H Sauvage, M
Citation
L. Vigroux et al., Galaxy evolution: The ISOCAM view, ASTRO SP SC, 277, 2001, pp. 565-569
Citations number
18
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICS AND SPACE SCIENCE
ISSN journal
0004640X → ACNP
Volume
277
Year of publication
2001
Supplement
1
Pages
565 - 569
Database
ISI
SICI code
0004-640X(2001)277:<565:GETIV>2.0.ZU;2-G
Abstract
New observations of nearby and distant galaxies in the mid infrared with IS OCAM have been used to study the star formation rate in these galaxies. The mid infrared flux density is a good indicator, similar to H alpha, in the disk of spiral galaxies. In more active starburst, the mid infrared traces the youngest star formation complexes, still embedded in dust. A strong evo lution of L-15 mum/L-B luminosity ratio is observed in large distant galaxi es. This is attributed to strong starburst events triggered by a larger num ber of galaxy-galaxy interaction at redshift > 0.5.