Comparing Ultraviolet and H alpha Star Formation Rates
| dc.creator | Bell, Eric F. | |
| dc.creator | Kennicutt Jr., Robert C. | |
| dc.date | 2000-08-16 | |
| dc.date.accessioned | 2026-07-07T01:54:57Z | |
| dc.date.available | 2026-07-07T01:54:57Z | |
| dc.description | We have used a sample of 43 star-forming galaxies imaged in the far-ultraviolet (FUV) by the UIT supplemented with 33 galaxies observed by FAUST, to explore the consistency of UV and H alpha derived star formation rates (SFRs). We find, even before correction for dust, that UV and H alpha SFRs are quantitatively consistent for low-luminosity galaxies, and that higher luminosity galaxies have H alpha SFRs a factor of 1.5 higher than their UV SFRs: this reflects the influence of dust. Our results are consistent with a scenario where the UV dust extinction is a factor of less than 2 larger than the H alpha dust extinction in a given galaxy, and that there is over a 4 magnitude range of H alpha dust extinctions which correlate loosely with galaxy luminosity such that low luminosity galaxies tend to have lower extinctions than their higher luminosity counterparts. | |
| dc.description | 2 pages, 1 figure. To appear in ASP Conference Series, "Galaxy Disks and Disk Galaxies", J.G. Funes S.J. and E.M. Corsini, eds | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0008250 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0008250 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/1492 | |
| dc.subject | Astrophysics | |
| dc.title | Comparing Ultraviolet and H alpha Star Formation Rates | |
| dc.type | text |