Abundances of late-type stars : J/ApJ/797/69

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Authors : Roederer I.U. orcid , Jacobson H.R., Thanathibodee T. (hide) , Jacobson H.R., Thanathibodee T. et..al

VizieR DOI : 10.26093/cds/vizier.17970069
Bibcode : 2014ApJ...797...69R (ADS) (Simbad) (Objects)
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CDS Keywords : Abundances; Abundances, [Fe/H]; Equivalent widths
UAT : Chemical abundances, Metallicity, Line intensities

Observation (OC)

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Inserted into VizieR : 05-Jan-2017
Last modification : 29-Nov-2017

Detection of neutral phosphorus in the near-ultraviolet spectra of late-type stars. (2014)

Keywords : nuclear reactions, nucleosynthesis, abundances - stars abundances stars: Population II

Abstract: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 ...(more)
Abstract: (hide)
American Astronomical Society policies
We obtained observations covering the NUV spectral range from the Barbara A. Mikulski Archive for Space Telescopes (MAST). These observations were taken using the medium- or high-resolution echelle gratings in the Space Telescope Imaging Spectrograph (STIS; Kimble et al. 1998ApJ...492L..83K; Woodgate et al. 1998PASP..110.1183W) on board the Hubble Space Telescope (HST). Spectra downloaded from the MAST have been reduced by the calstis pipeline and combined by Ayres (2010, Cat. J/ApJS/187/149). Spectra obtained previously by our own observing programs were reduced by the calstis pipeline and processed as described in Roederer et al. (2012ApJS..203...27R, 2014ApJ...791...32R) and Placco et al. (2014ApJ...790...34P).

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