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17th European White Dwarf Workshop: Planetary Debris as the Origin of Metal-Rich White Dwarfs
Farihi, Jay (2010)
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mla
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Farihi J. "17th European White Dwarf Workshop: Planetary Debris as the Origin of Metal-Rich White Dwarfs.", timms video, Universität Tübingen (2010): https://timms.uni-tuebingen.de:443/tp/UT_20100820_001_eurowd_0001. Accessed 30 Oct 2020.
apa
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Farihi, J. (2010). 17th European White Dwarf Workshop: Planetary Debris as the Origin of Metal-Rich White Dwarfs. timms video: Universität Tübingen. Retrieved October 30, 2020 from the World Wide Web https://timms.uni-tuebingen.de:443/tp/UT_20100820_001_eurowd_0001
harvard
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Farihi, J. (2010). 17th European White Dwarf Workshop: Planetary Debris as the Origin of Metal-Rich White Dwarfs [Online video]. 20 August. Available at: https://timms.uni-tuebingen.de:443/tp/UT_20100820_001_eurowd_0001 (Accessed: 30 October 2020).
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title: 17th European White Dwarf Workshop: Planetary Debris as the Origin of Metal-Rich White Dwarfs
alt. title: 17th European White Dwarf Workshop - Disks, dust and planets around white dwarfs
creator: Farihi, Jay (author)
subjects: Astronomie, Physik, Astrophysik, Workshop, White Dwarf, Planetary Debris, Origin of Metal-Rich White Dwarfs, Jay Farihi
description: 17th European White Dwarf Workshop, 16. bis 20. August 2010
abstract: Planetary Debris as the Origin of Metal-Rich White Dwarfs (J. Farihi, M.A. Barstow, P. Dufour, N.C. Hambly, M. Jura, S. Redfield, B. Zuckerman) (University of Leicester, University of Montreal, Royal Observatory Edinburgh, University of California, Los Angeles, Weslyan University) I will present a broad overview of the evidence for accretion of planetary material in single, cool and metal-polluted white dwarfs. Over 5 years of Spitzer and ground-based observations have firmly connected closely orbiting, refractory-rich material and the most highly contaminated stars. Recent data suggest that many of these stars may have dust rings that are difficult to detect, or mostly gaseous orbiting debris from which they currently accrete. While cooler and older stars with metals tend not to have infrared excesses, an examination of their Galactic positions and kinematics suggests that the interstellar medium is no longer a viable hypothesis for the metal-rich population at large. In this view, white dwarf atmospheres and compositions are - at least superficially - the reflection of their current and long term interactions with their remnant planetary systems.
publisher: ZDV Universität Tübingen
contributor: ZDV Universität Tübingen (producer)
creation date: 2010-08-20
dc type: image
localtype: video
identifier: UT_20100820_001_eurowd_0001
language: eng
rights: Url: https://timmsstatic.uni-tuebingen.de/jtimms/TimmsDisclaimer.html?637396151534105811