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There Are (super)Giants in the Sky: Searching for Misidentified Massive Stars in Algorithmically-Selected Quasar Catalogs

Published online by Cambridge University Press:  28 July 2017

Trevor Z. Dorn-Wallenstein Open the ORCID record for Trevor Z. Dorn-Wallenstein [Opens in a new window]  and
Emily Levesque
Trevor Z. Dorn-Wallenstein
Affiliation:
Astronomy Department, University of Washington, Physics and Astronomy Building, 3910 15th Ave NE, Seattle, WA 98105, USA email: [email protected], [email protected]
Emily Levesque
Affiliation:
Astronomy Department, University of Washington, Physics and Astronomy Building, 3910 15th Ave NE, Seattle, WA 98105, USA email: [email protected], [email protected]
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Abstract

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Thanks to incredible advances in instrumentation, surveys like the Sloan Digital Sky Survey have been able to find and catalog billions of objects, ranging from local M dwarfs to distant quasars. Machine learning algorithms have greatly aided in the effort to classify these objects; however, there are regimes where these algorithms fail, where interesting oddities may be found. We present here an X-ray bright quasar misidentified as a red supergiant/X-ray binary, and a subsequent search of the SDSS quasar catalog for X-ray bright stars misidentified as quasars.

Keywords

astronomical data bases: surveysstars: supergiantsX-rays: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 376 - 379
Copyright
Copyright © International Astronomical Union 2017 

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