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17th European White Dwarf Workshop: Multi-survey and statistical methods for cool white dwarf discovery
Sayres, Conor (2010)
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mla
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Sayres C. "17th European White Dwarf Workshop: Multi-survey and statistical methods for cool white dwarf discovery.", timms video, Universität Tübingen (2010): https://timms.uni-tuebingen.de:443/tp/UT_20100817_012_eurowd_0001. Accessed 30 Oct 2020.
apa
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Sayres, C. (2010). 17th European White Dwarf Workshop: Multi-survey and statistical methods for cool white dwarf discovery. timms video: Universität Tübingen. Retrieved October 30, 2020 from the World Wide Web https://timms.uni-tuebingen.de:443/tp/UT_20100817_012_eurowd_0001
harvard
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Sayres, C. (2010). 17th European White Dwarf Workshop: Multi-survey and statistical methods for cool white dwarf discovery [Online video]. 17 August. Available at: https://timms.uni-tuebingen.de:443/tp/UT_20100817_012_eurowd_0001 (Accessed: 30 October 2020).
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title: 17th European White Dwarf Workshop: Multi-survey and statistical methods for cool white dwarf discovery
alt. title: 17th European White Dwarf Workshop - White dwarf catalogs and surveys
creator: Sayres, Conor (author)
subjects: Astronomie, Physik, Astrophysik, Workshop, White Dwarf, multi-survey methods, statistical methods, cool white dwarf discovery, Conor Sayres
description: 17th European White Dwarf Workshop, 16. bis 20. August 2010
abstract: Multi-survey and Statistical Methods for Cool White Dwarf Discovery (Conor Sayres1,2 and John Subasavage3) (1Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195. 2REU Student, Cerro Tololo Inter-American Observatory. 3Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile) Compiling astrometric and photometric data from the Sloan Digital Sky Survey (SDSS), Lepine and Shara Proper Motion North Catalog, and the Two Micron All Sky Survey (2MASS), we explore a succession of methods to isolate white dwarfs (WDs) within subdwarf-dense parameter spaces. We utilize reduced proper motion cuts, color cuts, and atmospheric modeling to identify new WDs candidates for spectroscopy. By pooling data from our ongoing spectroscopic observations, targets found in the SDSS spectra database and various WD catalogs in the literature, we are exploring ways to further enhance our methodology. In this regard, principal component analysis (PCA) and linear discriminant analysis (LDA) techniques are being used as a means to better separate WDs from subdwarfs where customary photometric and astrometric analyses alone are largely ambiguous.
publisher: ZDV Universität Tübingen
contributor: ZDV Universität Tübingen (producer)
creation date: 2010-08-17
dc type: image
localtype: video
identifier: UT_20100817_012_eurowd_0001
language: eng
rights: Url: https://timmsstatic.uni-tuebingen.de/jtimms/TimmsDisclaimer.html?637396140619386848