DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS
We report the detection of several absorption lines of neutral phosphorus (P, Z = 15) in archival near-ultraviolet spectra obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. We derive phosphorus abundances or interesting upper limits in 14 late-type stars wit...
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2015
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| Online Access: | http://hdl.handle.net/1721.1/93114 https://orcid.org/0000-0003-4507-1710 https://orcid.org/0000-0001-7727-1640 https://orcid.org/0000-0002-2139-7145 |
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| author | Roederer, Ian U. Jacobson, Heather Thanathibodee, Thanawuth Toller, Elizabeth Frebel, Anna L. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Roederer, Ian U. Jacobson, Heather Thanathibodee, Thanawuth Toller, Elizabeth Frebel, Anna L. |
| author_sort | Roederer, Ian U. |
| collection | MIT |
| description | We report the detection of several absorption lines of neutral phosphorus (P, Z = 15) in archival near-ultraviolet spectra obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. We derive phosphorus abundances or interesting upper limits in 14 late-type stars with metallicities spanning –3.8 < [Fe/H] <–0.1. Previously, phosphorus had only been studied in Galactic stars with –1.0 < [Fe/H] <+0.3. Iron lines reveal abundance offsets between the optical and ultraviolet regions, and we discuss and apply a correction factor to account for this offset. In stars with [Fe/H] >–1.0, the [P/Fe] ratio decreases toward the solar value with increasing metallicity, in agreement with previous observational studies. In stars with [Fe/H] <–1.0, <[P/Fe]> = +0.04 ± 0.10, which overlaps with the [P/Fe] ratios found in several high-redshift damped Lyman-α systems. This behavior hints at a primary origin in massive stars. |
| first_indexed | 2024-09-23T15:02:57Z |
| format | Article |
| id | mit-1721.1/93114 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:02:57Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/931142022-09-29T12:16:56Z DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS Roederer, Ian U. Jacobson, Heather Thanathibodee, Thanawuth Toller, Elizabeth Frebel, Anna L. Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Jacobson, Heather Thanathibodee, Thanawuth Frebel, Anna L. Toller, Elizabeth We report the detection of several absorption lines of neutral phosphorus (P, Z = 15) in archival near-ultraviolet spectra obtained with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope. We derive phosphorus abundances or interesting upper limits in 14 late-type stars with metallicities spanning –3.8 < [Fe/H] <–0.1. Previously, phosphorus had only been studied in Galactic stars with –1.0 < [Fe/H] <+0.3. Iron lines reveal abundance offsets between the optical and ultraviolet regions, and we discuss and apply a correction factor to account for this offset. In stars with [Fe/H] >–1.0, the [P/Fe] ratio decreases toward the solar value with increasing metallicity, in agreement with previous observational studies. In stars with [Fe/H] <–1.0, <[P/Fe]> = +0.04 ± 0.10, which overlaps with the [P/Fe] ratios found in several high-redshift damped Lyman-α systems. This behavior hints at a primary origin in massive stars. Massachusetts Institute of Technology. Undergraduate Research Opportunities Program National Science Foundation (U.S.) (CAREER Grant AST-1255160) 2015-01-22T13:44:40Z 2015-01-22T13:44:40Z 2014-11 2014-09 Article http://purl.org/eprint/type/JournalArticle 1538-4357 0004-637X http://hdl.handle.net/1721.1/93114 Roederer, Ian U., Heather R. Jacobson, Thanawuth Thanathibodee, Anna Frebel, and Elizabeth Toller. “DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS.” The Astrophysical Journal 797, no. 1 (November 24, 2014): 69. © 2014 The American Astronomical Society https://orcid.org/0000-0003-4507-1710 https://orcid.org/0000-0001-7727-1640 https://orcid.org/0000-0002-2139-7145 en_US http://dx.doi.org/10.1088/0004-637X/797/1/69 The Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing American Astronomical Society |
| spellingShingle | Roederer, Ian U. Jacobson, Heather Thanathibodee, Thanawuth Toller, Elizabeth Frebel, Anna L. DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title | DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title_full | DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title_fullStr | DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title_full_unstemmed | DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title_short | DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS |
| title_sort | detection of neutral phosphorus in the near ultraviolet spectra of late type stars |
| url | http://hdl.handle.net/1721.1/93114 https://orcid.org/0000-0003-4507-1710 https://orcid.org/0000-0001-7727-1640 https://orcid.org/0000-0002-2139-7145 |
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