Faint [O IV] emission from starburst galaxies
| dc.creator | Lutz, D. | |
| dc.creator | Kunze, D. | |
| dc.creator | Spoon, H. W. W. | |
| dc.creator | Thornley, M. D. | |
| dc.date | 1998-03-27 | |
| dc.date.accessioned | 2026-07-07T02:26:28Z | |
| dc.date.available | 2026-07-07T02:26:28Z | |
| dc.description | We report the detection of faint emission in the high-excitation [OIV] 25.90um line in a number of starburst galaxies, from observations obtained with the Short Wavelength Spectrometer (SWS) on board ISO. Further observations of M82 spatially resolve the [OIV] emitting region. Detection of this line in starbursts is surprising since it is not produced in measurable quantities in HII regions around hot main-sequence stars, the dominant energy source of starburst galaxies. We discuss various models for the formation of this line. [OIV] that is spatially resolved by ISO cannot originate in a weak AGN and must be due to very hot stars or ionizing shocks related to the starburst activity. For low-excitation starbursts like M82, shocks are the most plausible source of [OIV] emission. | |
| dc.description | 5 pages Latex (A&A Macros 4), 5 eps figures. Accepted for publication as an A&A Letter. See also http://www.mpe.mpg.de/ISO/preprint/MPE-IR-98001.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9803314 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9803314 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/12288 | |
| dc.subject | Astrophysics | |
| dc.title | Faint [O IV] emission from starburst galaxies | |
| dc.type | text |