Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...420l..71b&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 420, no. 2, p. L71-L74
Astronomy and Astrophysics
Astrophysics
24
Halos, Interacting Galaxies, Intergalactic Media, Light (Visible Radiation), Spatial Resolution, Supernovae, Absorption Spectra, Atmospheric Density, Hubble Space Telescope, Line Of Sight, Solar Orbits, Wavelengths
Scientific paper
We present echelle-resolution (FWHM approximately 5 km/s) HST observations of Mg II, Mg I, and ground-based observations of Na I absorption toward SN 1993J which exploded in M81. We detect individual absorption components spanning a total velocity range of -163 less than heliocentric velocity less than +225 km/s. The components are grouped into three sub-complexes, representing absorption from the disk of M81, from our own Galactic disk and halo, and from intergalactic gas which is probably the tidal debris of interactions between M81 and M82. We use the Mg I/Na I ratios to estimate the temperature of the absorbing gas; many of the components have high ratios, indicative of T greater than 7000 K, and so originate in the warm, diffuse ionized medium of our own Galaxy, of M81, and of the disrupted gas.
Blades Chris J.
Bowen David V.
Meyer David M.
Roth Katherine C.
No associations
LandOfFree
Interstellar and intergalactic magnesium and sodium absorption toward SN 1993J does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Interstellar and intergalactic magnesium and sodium absorption toward SN 1993J, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar and intergalactic magnesium and sodium absorption toward SN 1993J will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-865988