ISM chemical abundances along the line-of-sight to SN 1987A
Abstract
The IUE high resolution spectra of SN 1987A were studied. Absorption lines of 2 clouds with velocities of 130 km/sec and 180 km/sec (heliocentric) are seen in addition to the local galactic gas and the Large Magellanic Cloud (LMC) gas. Curve of growth analysis shows that these clouds may be depleted in heavy elements when compared to the local ISM and the LMC ISM. There is no indication of depletion due to grain formation. There seems to be no way to determine whether the clouds are part of the galactic halo or part of the LMC's halo.
- Publication:
-
ESA Special Publication
- Pub Date:
- June 1988
- Bibcode:
- 1988ESASP.281b.207M
- Keywords:
-
- Interstellar Gas;
- Interstellar Matter;
- Iue;
- Magellanic Clouds;
- Spaceborne Astronomy;
- Supernova 1987a;
- Ultraviolet Astronomy;
- Ultraviolet Spectra;
- Abundance;
- Depletion;
- Halos;
- Interstellar Chemistry;
- Astronomy