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General relativistic orbital decay in a seven-minute-orbital-period eclipsing binary system.
Burdge, Kevin B; Coughlin, Michael W; Fuller, Jim; Kupfer, Thomas; Bellm, Eric C; Bildsten, Lars; Graham, Matthew J; Kaplan, David L; Roestel, Jan van; Dekany, Richard G; Duev, Dmitry A; Feeney, Michael; Giomi, Matteo; Helou, George; Kaye, Stephen; Laher, Russ R; Mahabal, Ashish A; Masci, Frank J; Riddle, Reed; Shupe, David L; Soumagnac, Maayane T; Smith, Roger M; Szkody, Paula; Walters, Richard; Kulkarni, S R; Prince, Thomas A.
Affiliation
  • Burdge KB; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA. kburdge@caltech.edu.
  • Coughlin MW; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Fuller J; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Kupfer T; Kavli Institute for Theoretical Physics, University of California Santa Barbara, Santa Barbara, CA, USA.
  • Bellm EC; Department of Astronomy, University of Washington, Seattle, WA, USA.
  • Bildsten L; Kavli Institute for Theoretical Physics, University of California Santa Barbara, Santa Barbara, CA, USA.
  • Graham MJ; Department of Physics, University of California Santa Barbara, Santa Barbara, CA, USA.
  • Kaplan DL; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Roestel JV; Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
  • Dekany RG; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Duev DA; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Feeney M; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Giomi M; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Helou G; Humboldt-Universität zu Berlin, Berlin, Germany.
  • Kaye S; IPAC, California Institute of Technology, Pasadena, CA, USA.
  • Laher RR; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Mahabal AA; IPAC, California Institute of Technology, Pasadena, CA, USA.
  • Masci FJ; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
  • Riddle R; IPAC, California Institute of Technology, Pasadena, CA, USA.
  • Shupe DL; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Soumagnac MT; IPAC, California Institute of Technology, Pasadena, CA, USA.
  • Smith RM; Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot, Israel.
  • Szkody P; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Walters R; Department of Astronomy, University of Washington, Seattle, WA, USA.
  • Kulkarni SR; Caltech Optical Observatories, California Institute of Technology, Pasadena, CA, USA.
  • Prince TA; Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA, USA.
Nature ; 571(7766): 528-531, 2019 07.
Article in En | MEDLINE | ID: mdl-31341301
ABSTRACT
General relativity1 predicts that short-orbital-period binaries emit considerable amounts of gravitational radiation. The upcoming Laser Interferometer Space Antenna2 (LISA) is expected to detect tens of thousands of such systems3 but few have been identified4, of which only one5 is eclipsing-the double-white-dwarf binary SDSS J065133.338+284423.37, which has an orbital period of 12.75 minutes. Here we report the discovery of an eclipsing double-white-dwarf binary system, ZTF J153932.16+502738.8, with an orbital period of 6.91 minutes. This system has an orbit so compact that the entire binary could fit within the diameter of the planet Saturn. The system exhibits a deep eclipse, and a double-lined spectroscopic nature. We see rapid orbital decay, consistent with that expected from general relativity. ZTF J153932.16+502738.8 is a strong source of gravitational radiation close to the peak of LISA's sensitivity, and we expect it to be detected within the first week of LISA observations, once LISA launches in approximately 2034.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nature Year: 2019 Type: Article Affiliation country: United States
Fulltext
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PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nature Year: 2019 Type: Article Affiliation country: United States