Interstellar lines in SN 1987 A observed with the IUE

Details Interstellar lines in SN 1987 A observed with the IUE Interstellar lines in SN 1987 A observed with the IUE

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...177l..37d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 177, no. 1-2, May 1987, p. L37-L40.

Astronomy and Astrophysics

Astrophysics

32

Interstellar Gas, Magellanic Clouds, Supernova 1987A, Ultraviolet Spectra, Halos, Ionized Gases, Iue, Milky Way Galaxy, Neutral Gases

Scientific paper

The SN 1987A UV-interstellar spectrum shows nine resolvable components in ionization stages ranging from neutral gas (Mg I, Si II, Fe II, etc.) to highly ionized gas (Al III, Si IV, C IV). Three components are due to gas in the Milky Way disk and halo, four are most likely due to LMC gas, two components are at velocities intermediate to those of the galaxy and the LMC. There is in the spectra taken between February 24 and March 3 no clear evidence for specific SN 1987A event related components. The interstellar spectra are quite similar to those of R136 (30 arcmin away) so that SN 1987A very likely is in the LMC indeed. However, one component is strong in metals but is not present in existing 21-cm H I profiles.

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