A comparison of metal and Ly-α absorption in galactic haloes
The metallicity structure of galactic haloes is one of the major unknowns in modern galactic astrophysics and observational cosmology. Hereby we outline a very simple method for obtaining at least a crude picture of gas abundances, based on recent important statistical determination of the...
| Main Author: | |
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| Format: | Article |
| Language: | English |
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Astronomical Observatory, Department of Astronomy, Belgrade
1998-01-01
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| Series: | Serbian Astronomical Journal |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-698X/1998/1450-698X9858009C.pdf |
| _version_ | 1818584239729278976 |
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| author | Ćirković M.M. |
| author_facet | Ćirković M.M. |
| author_sort | Ćirković M.M. |
| collection | DOAJ |
| description | The metallicity structure of galactic haloes is one of the major unknowns in
modern galactic astrophysics and observational cosmology. Hereby we outline a
very simple method for obtaining at least a crude picture of gas abundances,
based on recent important statistical determination of the relationship
between neutral hydrogen absorbing column density and galaxy impact
parameter. It is a fine illustration of the great theoretical and
observational power of low-redshift Lyα absorption studies. Future detailed
analyses of large samples of absorption-selected galaxies will certainly
provide us with more data on the abundance structure of extended gaseous
component of galaxies. |
| first_indexed | 2024-12-16T08:18:01Z |
| format | Article |
| id | doaj.art-961ea622a99244759814ea8c8828f446 |
| institution | Directory Open Access Journal |
| issn | 1450-698X 1820-9289 |
| language | English |
| last_indexed | 2024-12-16T08:18:01Z |
| publishDate | 1998-01-01 |
| publisher | Astronomical Observatory, Department of Astronomy, Belgrade |
| record_format | Article |
| series | Serbian Astronomical Journal |
| spelling | doaj.art-961ea622a99244759814ea8c8828f4462022-12-21T22:38:12ZengAstronomical Observatory, Department of Astronomy, BelgradeSerbian Astronomical Journal1450-698X1820-92891998-01-01199815891310.2298/SAJ9858009C1450-698X9858009CA comparison of metal and Ly-α absorption in galactic haloesĆirković M.M.0Astronomical Observatory, Belgrade + Astronomy Program, Department of Physics and Astronomy State University of New York at Stony Brook, Stony Brook, NY, USAThe metallicity structure of galactic haloes is one of the major unknowns in modern galactic astrophysics and observational cosmology. Hereby we outline a very simple method for obtaining at least a crude picture of gas abundances, based on recent important statistical determination of the relationship between neutral hydrogen absorbing column density and galaxy impact parameter. It is a fine illustration of the great theoretical and observational power of low-redshift Lyα absorption studies. Future detailed analyses of large samples of absorption-selected galaxies will certainly provide us with more data on the abundance structure of extended gaseous component of galaxies.http://www.doiserbia.nb.rs/img/doi/1450-698X/1998/1450-698X9858009C.pdf |
| spellingShingle | Ćirković M.M. A comparison of metal and Ly-α absorption in galactic haloes Serbian Astronomical Journal |
| title | A comparison of metal and Ly-α absorption in galactic haloes |
| title_full | A comparison of metal and Ly-α absorption in galactic haloes |
| title_fullStr | A comparison of metal and Ly-α absorption in galactic haloes |
| title_full_unstemmed | A comparison of metal and Ly-α absorption in galactic haloes |
| title_short | A comparison of metal and Ly-α absorption in galactic haloes |
| title_sort | comparison of metal and ly α absorption in galactic haloes |
| url | http://www.doiserbia.nb.rs/img/doi/1450-698X/1998/1450-698X9858009C.pdf |
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