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dc.creatorBrown, Warren R.en_US
dc.creatorKilic, Mukreminen_US
dc.creatorHermes, J. J.en_US
dc.creatorPrieto, Carlos Allendeen_US
dc.creatorKenyon, Scott J.en_US
dc.creatorWinget, D. E.en_US
dc.date.accessioned2016-10-28T19:33:38Z
dc.date.available2016-10-28T19:33:38Z
dc.date.issued2011-08en_US
dc.identifierdoi:10.15781/T22J6869T
dc.identifier.citationBrown, Warren R., Mukremin Kilic, J. J. Hermes, Carlos Allende Prieto, Scott J. Kenyon, and D. E. Winget. "A 12 minute orbital period detached white dwarf eclipsing binary." The Astrophysical Journal Letters, Vol. 737, No. 1 (Aug., 2011): L23.en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/2152/42897
dc.description.abstractWe have discovered a detached pair of white dwarfs (WDs) with a 12.75 minute orbital period and a 1315 km s(-1) radial velocity amplitude. We measure the full orbital parameters of the system using its light curve, which shows ellipsoidal variations, Doppler boosting, and primary and secondary eclipses. The primary is a 0.25 M-circle dot tidally distorted helium WD, only the second tidally distorted WD known. The unseen secondary is a 0.55 M-circle dot carbon-oxygen WD. The two WDs will come into contact in 0.9 Myr due to loss of energy and angular momentum via gravitational wave radiation. Upon contact the systems may merge (yielding a rapidly spinning massive WD), form a stable interacting binary, or possibly explode as an underluminous Type Ia supernova. The system currently has a gravitational wave strain of 10(-22), about 10,000 times larger than the Hulse-Taylor pulsar; this system would be detected by the proposed Laser Interferometer Space Antenna gravitational wave mission in the first week of operation. This system's rapid change in orbital period will provide a fundamental test of general relativity.en_US
dc.description.sponsorshipSmithsonian Institutionen_US
dc.description.sponsorshipNASAen_US
dc.description.sponsorshipNational Science Foundation AST-0909107en_US
dc.description.sponsorshipNorman Hackerman Advanced Research Program 003658-0252-2009en_US
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.subjectbinaries: closeen_US
dc.subjectbinaries: eclipsingen_US
dc.subjectgravitational wavesen_US
dc.subjectstars:en_US
dc.subjectindividual (sdss j065133.338+284423.37)en_US
dc.subjectwhite dwarfsen_US
dc.subjectam cvn starsen_US
dc.subjectlight curvesen_US
dc.subjectmass-transferen_US
dc.subjectdiscoveryen_US
dc.subjectsystemen_US
dc.subjectpulsaren_US
dc.subjectastronomy & astrophysicsen_US
dc.titleA 12 Minute Orbital Period Detached White Dwarf Eclipsing Binaryen_US
dc.typeArticleen_US
dc.description.departmentMcDonald Observatoryen_US
dc.rights.restrictionOpenen_US
dc.identifier.doi10.1088/2041-8205/737/1/l23en_US
dc.contributor.utaustinauthorHermes, J. J.en_US
dc.relation.ispartofserialAstrophysical Journal Lettersen_US


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