Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377l..53s&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. L53-L56.
Astronomy and Astrophysics
Astrophysics
24
Hubble Space Telescope, Interstellar Gas, Interstellar Matter, Neutral Gases, Spectrographs, Ultraviolet Spectra, Absorption Spectra, Abundance, High Resolution, Line Spectra
Scientific paper
Observations of ultraviolet interstellar absorption lines toward Xi Persei obtained with the echelle mode of the Goddard High-Resolution Spectrograph (GHRS) aboard the HST at a resolution of 3.5 km/s are presented. The data for O I, C II, Mg II, S II, Fe II, Si II, Mn II, and Zn II are converted into representations of apparent column density per unit velocity, Na(v), over the velocity range from -30 to +40 km/s. The profiles for ions that are the dominant state of ionization in neutral clouds permit a study of the variation of element abundance with velocity caused by changes in the gas phase depletion in the different absorbing regions situated toward Xi Per. In the denser portions of the diffuse clouds, heavy element depletions are very large. However, in absorbing components near -5 and +25 km/s, the depletions are less severe, with a nearly solar gas phase abundance ratio being found for the gas in the +25 km/s component. The measurements confirm that the GHRS is well suited for diagnostic spectroscopy of interstellar gas.
Bruhweiler Frederick C.
Cardelli Jason A.
Ebbets Dennis C.
Savage Blair. D.
Sembach Kenneth Russell
No associations
LandOfFree
First results from the Goddard High-Resolution Spectrograph - Element abundances as a function of velocity in the neutral gas toward XI Persei 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 First results from the Goddard High-Resolution Spectrograph - Element abundances as a function of velocity in the neutral gas toward XI Persei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First results from the Goddard High-Resolution Spectrograph - Element abundances as a function of velocity in the neutral gas toward XI Persei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1725709