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The ELM Survey. IX. A Complete Sample of Low Mass White Dwarf Binaries in the SDSS Footprint

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Title: The ELM Survey. IX. A Complete Sample of Low Mass White Dwarf Binaries in the SDSS Footprint
Authors: Brown, Warren R., Kilic, Mukremin, Kosakowski, Alekzander, Gianninas, A.
Publication Year: 2022
Collection: Astrophysics
Subject Terms: Astrophysics - Solar and Stellar Astrophysics
More Details: We present the discovery of 17 double white dwarf (WD) binaries from our on-going search for extremely low mass (ELM) <0.3 Msun WDs, objects that form from binary evolution. Gaia parallax provides a new means of target selection that we use to evaluate our original ELM Survey selection criteria. Cross-matching the Gaia and Sloan Digital Sky Survey (SDSS) catalogs, we identify an additional 36 ELM WD candidates with 17Comment: 14 pages, 10 figures, published ApJ
Document Type: Working Paper
DOI: 10.3847/1538-4357/ac72ac
Access URL: http://arxiv.org/abs/2207.02998
Accession Number: edsarx.2207.02998
Database: arXiv
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  Data: The ELM Survey. IX. A Complete Sample of Low Mass White Dwarf Binaries in the SDSS Footprint
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Brown%2C+Warren+R%2E%22&quot;&gt;Brown, Warren R.&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kilic%2C+Mukremin%22&quot;&gt;Kilic, Mukremin&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Kosakowski%2C+Alekzander%22&quot;&gt;Kosakowski, Alekzander&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Gianninas%2C+A%2E%22&quot;&gt;Gianninas, A.&lt;/searchLink&gt;
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  Label: Description
  Group: Ab
  Data: We present the discovery of 17 double white dwarf (WD) binaries from our on-going search for extremely low mass (ELM) &lt;0.3 Msun WDs, objects that form from binary evolution. Gaia parallax provides a new means of target selection that we use to evaluate our original ELM Survey selection criteria. Cross-matching the Gaia and Sloan Digital Sky Survey (SDSS) catalogs, we identify an additional 36 ELM WD candidates with 17&lt;g&lt;19 mag and within the 3-sigma uncertainties of our original color selection. The resulting discoveries imply the ELM Survey sample was 90% complete in the color range -0.4 &lt; (g-r)_0 &lt; -0.1 mag (approximately 9,000 K &lt; Teff &lt; 22,000 K). Our observations complete the sample in the SDSS footprint. Two newly discovered binaries, J123950.370-204142.28 and J232208.733+210352.81, have orbital periods of 22.5 min and 32 min, respectively, and are future LISA gravitational wave sources.&lt;br /&gt;Comment: 14 pages, 10 figures, published ApJ
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    Titles:
      – TitleFull: The ELM Survey. IX. A Complete Sample of Low Mass White Dwarf Binaries in the SDSS Footprint
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            NameFull: Brown, Warren R.
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            NameFull: Kilic, Mukremin
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            NameFull: Kosakowski, Alekzander
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            NameFull: Gianninas, A.
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