Other
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7771b&link_type=abstract
HST Proposal ID #7771
Other
Hst Proposal Id #7771 Interstellar Matter
Scientific paper
We will use the STIS to observe one bright {V <= 12.5} supernova which is likely to occur during Cycle 7 in order to probe the interstellar gas of the host galaxy as well as gas in the local Galactic halo. We wish to observe MgII and MgI absorption lines with the MAMA echelles: the high resolution will enable us to resolve individual components with the absorption complex, study the kinematic structure of the absorbing gas, and derive accurate column densities and Doppler parameters of the absorbing cloud s. We would use the G140L to search for high ionization lines as well as the more common low ionization species, and use the ratio of high to low ions to ascertain the ionization conditions in the gas. Information on interstellar absorption from any low-r edshift galaxy other than our own is sparse, and we aim to detect lines whose strength and structure can be compared with Galactic absorption as well as that seen at high redshift in QSO spectra. Should a supernova occur with V <= 11, we would add medium resolution exposures of CIV, as well as ZnII & CrII. The latter observations would allow us to calculate metallicities and depletions in a galaxy other than our own, values which can be compared w ith higher-redshift abundance studies.
No associations
LandOfFree
The Interstellar Medium of Nearby Galaxies Using Supernovae as Probes 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 The Interstellar Medium of Nearby Galaxies Using Supernovae as Probes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Interstellar Medium of Nearby Galaxies Using Supernovae as Probes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-896236