Mid-IR imaging of Toomre's Merger Sequence
| dc.creator | Charmandaris, V. | |
| dc.creator | Laurent, O. | |
| dc.creator | Mirabel, I. F. | |
| dc.creator | Gallais, P. | |
| dc.date | 1999-09-10 | |
| dc.date.accessioned | 2026-07-07T02:33:12Z | |
| dc.date.available | 2026-07-07T02:33:12Z | |
| dc.description | We present results on mid-IR (5--16micron) spectral imaging of a sequence of interacting galaxies, observed by ISOCAM. The galaxies are part of the well known Toomre's ``merger sequence'' which was defined as a sample of galaxies depicting progressive snapshots in the time evolution of a merging event. To trace the intensity of the radiation field in a starburst, we use the ratio of the 15 to 7 micron flux. Our analysis indicates that this ratio increases as galaxies move from the pre-starburst to the starburst phase and goes again down to ~1 in the post-starburst phase, a value typical of normal star forming regions in galactic disks. Moreover, we find that the variation of this ratio is well correlated with the one of the IRAS 25micron/12micron and 60micron/100micron flux ratios. | |
| dc.description | 2 pages, 1 figure, to appear in "Galaxy Dynamics: from the Early Universe to the Present", ASP Conf Series, ed. F. Combes, G. Mamon, V. Charmandaris | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9909186 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9909186 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14752 | |
| dc.subject | Astrophysics | |
| dc.title | Mid-IR imaging of Toomre's Merger Sequence | |
| dc.type | text |