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Molecular hydrogen in the young starburst in ngc 253
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lebofsky, M. J. Walker, C. E. Rieke, G. H. |
| Copyright Year | 1986 |
| Description | Shocked molecular hydrogen has been observed around the nucleus of the nearby galaxy, NGC 253. This galaxy has a relatively modest luminosity (approx. 3 x 10 to the 10th power solar luminosities) and appears to have no distortions or companions that would indicate a possible interaction. The energy of the galaxy appears to be derived primarily from a starburst. Thus, our observations have caused us to examine the starburst process in some detail to identify how the molecular hydrogen is excited. It is proposed that the molecular hydrogen emission is produced by collisions of dense molecular clouds accelerated by supernovae explosions. Within the nucleus, this process occurs early in the life of the starbust. This suggest a sequence of nuclear starburst development; examples along this sequence from young to old would include NGC 253, M82, NGC 1097, and M31. |
| File Size | 41168 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870005663 |
| Archival Resource Key | ark:/13960/t7hq8tp11 |
| Language | English |
| Publisher Date | 1986-10-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Molecular Gases Supernovae Starburst Galaxies Emission Spectra Galactic Evolution Hydrogen Clouds Acceleration Physics Luminosity Line Spectra Flare Stars Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
