The Hidden Population of AM CVn Binaries in the Sloan Digital Sky Survey

Bibliographic Details
Title: The Hidden Population of AM CVn Binaries in the Sloan Digital Sky Survey
Authors: P. J. Carter, T. R. Marsh, D. Steeghs, E. Breedt, C. M. Copperwheat, B. T. Gansicke, P. J. Groot, G. Nelemans
Source: Acta Polytechnica CTU Proceedings, Vol 2, Iss 1, Pp 178-182 (2015)
Publisher Information: CTU Central Library, 2015.
Publication Year: 2015
Collection: LCC:Engineering (General). Civil engineering (General)
Subject Terms: Engineering (General). Civil engineering (General), TA1-2040
More Details: We present results from a spectroscopic survey designed to uncover AM Canum Venaticorum (AM CVn) binaries hidden in the photometric database of the Sloan Digital Sky Survey (SDSS). The discovery of only 7 new AM CVns in the observed part of our sample suggests a lower space density than previously predicted. Based on the complete g≤19 sample, we calculate an observed space density for AM CVns of (5 ± 3) × 10−7 pc−3. We also compare the cataclysmic variables (CVs) discovered via this survey to those found in the SDSS spectroscopy, and we discuss SBSS 1108+574, an unusually helium-rich CV that has a spectroscopically confirmed orbital period of 55 minutes, well below the CV period minimum (~80 min). SBSS 1108+574 may represent an AM CVn forming via the ‘evolved CV’ formation channel.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2336-5382
Relation: https://ojs.cvut.cz/ojs/index.php/APP/article/view/2883; https://doaj.org/toc/2336-5382
DOI: 10.14311/APP.2015.02.0178
Access URL: https://doaj.org/article/cf061cc0c98e49b8b913d4c2905f4f5c
Accession Number: edsdoj.f061cc0c98e49b8b913d4c2905f4f5c
Database: Directory of Open Access Journals
More Details
ISSN:23365382
DOI:10.14311/APP.2015.02.0178
Published in:Acta Polytechnica CTU Proceedings
Language:English