Tipo de publicación: Con árbitro

  • Publicación
    The elderly among the oldest: new evidence for extremely metal-poor RR Lyrae stars
    We performed a detailed spectroscopic analysis of three extremely metal-poor RR Lyrae stars, exploring uncharted territories at these low metallicities for this...
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    The Electrical Current Density Vector in the Inner Penumbra of a Sunspot
    We determine the entire electrical current density vector in a geometrical three-dimensional volume of the inner penumbra of a sunspot from an inversion of...
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    The electron temperatures of SDSS high-metallicity giant extragalactic HII regions
    Spectra of high-metallicity [12+log(O/H) >~ 8.2] HII regions, where oxygen auroral lines are measurable in both the O+ and O++ zones, have been extracted from...
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    The elemental abundance of quiescent galaxies in the LEGA-C survey: the (non-)evolution of [α/Fe] from z = 0.75 to z = 0
    We measure the [α/Fe] abundances for 183 quiescent galaxies at z = 0.60-0.75 with stellar masses ranging 10.4 ≤ log 10(M */M ⊙) ≤ 11.6 selected from the Large...
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    The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
    The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an...
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    The ELM Survey. I. A Complete Sample of Extremely Low-mass White Dwarfs
    We analyze radial velocity observations of the 12 extremely low-mass (ELM), with
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    The ELM Survey. II. Twelve Binary White Dwarf Merger Systems
    We describe new radial velocity and X-ray observations of extremely low-mass white dwarfs (ELM WDs, ~0.2 M sun) in the Sloan Digital Sky Survey Data Release 4...
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    The ELM Survey. III. A Successful Targeted Survey for Extremely Low Mass White Dwarfs
    Extremely low mass (ELM) white dwarfs (WDs) with masses 0.25 M &sun; are rare objects that result from compact binary evolution. Here, we present a targeted...
  • Publicación
    The ELM Survey. IV. 24 White Dwarf Merger Systems
    We present new radial velocity and X-ray observations of extremely low mass (ELM, ~0.2 M &sun;) white dwarf (WD) candidates in the Sloan Digital Sky Survey Data...