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Hubble Space Telescope Near-Ultraviolet Spectroscopy Of The Bright CEMP-No Star BD+44 Degrees 493

Placco, Vinicius M.; Beers, Timothy C.; Roederer, Ian U.; Cowan, John J.; Frebel, Anna; Filler, Dan; Ivans, Inese I.; Lawler, James E.; Schatz, Hendrik; Sneden, Christopher; Sobeck, Jennifer S.; Aoki, Wako; Smith, Verne V. (2014-07)

We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the extremely metal-poor star BD+44 degrees 493 a ninth magnitude subgiant with [Fe/H] = -3.8 and enhanced carbon, based on data ...

New Detections Of Arsenic, Selenium, And Other Heavy Elements In Two Metal-Poor Stars

Roederer, Ian U.; Schatz, Hendrik; Lawler, James E.; Beers, Timothy C.; Cowan, John J.; Frebel, Anna; Ivans, Inese, I.; Sneden, Christopher; Sobeck, Jennifer S. (2014-08)

We use the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope to obtain new high-quality spectra covering the 1900 <= lambda <= 2360 angstrom wavelength range for two metal-poor stars, HD 108317 and ...