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Two white dwarfs with oxygen-rich atmospheres

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Gaensicke, B. T., Koester, Detlev, Girven, Jonathan, Marsh, T. R. and Steeghs, D. (2010) Two white dwarfs with oxygen-rich atmospheres. Science, Vol.327 (No.5962). pp. 188-190. doi:10.1126/science.1180228 ISSN 0036-8075.

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Official URL: http://dx.doi.org/10.1126/science.1180228

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Abstract

Stars with masses ranging from 7 to 10 times the mass of the Sun end their lives either as massive white dwarfs or weak type II supernovae, but there are only limited observational constraints on either evolutionary channel. Here we report the detection of two white dwarfs with large photospheric oxygen abundances, implying that they are bare oxygen-neon cores and that they may have descended from the most massive progenitors that avoid core collapse.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): White dwarf stars
Journal or Publication Title: Science
Publisher: American Association for the Advancement of Science
ISSN: 0036-8075
Official Date: 8 January 2010
Dates:
DateEvent
8 January 2010Published
Volume: Vol.327
Number: No.5962
Number of Pages: 3
Page Range: pp. 188-190
DOI: 10.1126/science.1180228
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 8 December 2015
Date of first compliant Open Access: 8 December 2015
Funder: Science and Technology Facilities Council (Great Britain) (STFC), Alfred P. Sloan Foundation, National Science Foundation (U.S.) (NSF), United States. Dept. of Energy, United States. National Aeronautics and Space Administration (NASA), Japan. Monbushō, Max-Planck-Gesellschaft zur Förderung der Wissenschaften [Max Planck Society for the Advancement of Science], Higher Education Funding Council for England (HEFCE), American Museum of Natural History, Astrophysical Institute Potsdam, Universität Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermi National Accelerator Laboratory (Fermilab), Institute for Advanced Study (Princeton, N.J.), Johns Hopkins University, Joint Institute for Nuclear Astrophysics, Kavli Institute for Particle Astrophysics and Cosmology, Korean Scientist Group, Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST), Los Alamos National Laboratory (LANL), Max-Planck-Institut für Astronomie, Max-Planck-Institut für Astrophysik, New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, United States Naval Observatory, University of Washington

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