Massive stars as important contributors to two micron light
| dc.creator | Rhoads, James E. | |
| dc.date | 1995-03-20 | |
| dc.date.accessioned | 2026-07-07T02:19:40Z | |
| dc.date.available | 2026-07-07T02:19:40Z | |
| dc.description | Near infrared light at 2 micrometers is relatively insensitive to the presence of hot young stars and dust in galaxies, and there has been recent interest in using it as a mass tracer in spiral galaxies. I present evidence that young, cool supergiant stars, whose presence is indicated by strong CO absorption in a 2.36 micrometer bandpass, dominate the 2 micrometer light from active star forming regions in the galaxy NGC 1309. The galaxy's quiescent regions, in contrast, do not show evidence of young supergiants. It follows that the 2 micrometer light comes from different stellar populations in different places, and large changes in the 2 micrometer surface brightness need not imply correspondingly large features in the galaxy's mass distribution. | |
| dc.description | uuencoded compressed postscript, 9 pages text, 3 pages figures; figures may not display correctly with some postscript previewers (gs works, ghostview does not) but should print out. Submitted to The Astrophysical Journal Letters. | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9503076 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9503076 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/9959 | |
| dc.subject | Astrophysics | |
| dc.title | Massive stars as important contributors to two micron light | |
| dc.type | text |