RAPID ORBITAL DECAY IN THE 12.75-MINUTE BINARY WHITE DWARF J0651+2844
We report the detection of orbital decay in the 12.75-minute, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13 month baseline constrain the orbital period to 765.206543(55) s and indicate that the orbit is decreasing at a rate of (...
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| Veröffentlicht in: | Astrophysical journal. Letters 2012-10, Vol.757 (2), p.1-6 |
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| container_title | Astrophysical journal. Letters |
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| creator | Hermes, J J KILIC, MUKREMIN Brown, Warren R Winget, D E Prieto, Carlos Allende GIANNINAS, A Mukadam, Anjum S Cabrera-Lavers, Antonio Kenyon, Scott J |
| description | We report the detection of orbital decay in the 12.75-minute, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13 month baseline constrain the orbital period to 765.206543(55) s and indicate that the orbit is decreasing at a rate of (-9.8 + or - 2.8) x 10 super(-12) s s super(-1) (or -0.31 + or - 0.09 ms yr super(-1)). We revise the system parameters based on our new photometric and spectroscopic observations: J0651 contains two WDs with M sub(1) = 0.26 + or - 0.04 M sub([middot in circle]) and M sub(2) = 0.50 + or - 0.04 M sub([middot in circle]). General relativity predicts orbital decay due to gravitational wave radiation of (-8.2 + or - 1.7) x 10 super(-12) s s super(-1) (or -0.26 + or - 0.05 ms yr super(-1)). Our observed rate of orbital decay is consistent with this expectation. J0651 is currently the second-loudest gravitational wave source known in the milli-Hertz range and the loudest non-interacting binary, which makes it an excellent verification source for future missions aimed at directly detecting gravitational waves. Our work establishes the feasibility of monitoring this system's orbital period decay at optical wavelengths. |
| doi_str_mv | 10.1088/2041-8205/757/2/L21 |
| format | Article |
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Our photometric observations over a 13 month baseline constrain the orbital period to 765.206543(55) s and indicate that the orbit is decreasing at a rate of (-9.8 + or - 2.8) x 10 super(-12) s s super(-1) (or -0.31 + or - 0.09 ms yr super(-1)). We revise the system parameters based on our new photometric and spectroscopic observations: J0651 contains two WDs with M sub(1) = 0.26 + or - 0.04 M sub([middot in circle]) and M sub(2) = 0.50 + or - 0.04 M sub([middot in circle]). General relativity predicts orbital decay due to gravitational wave radiation of (-8.2 + or - 1.7) x 10 super(-12) s s super(-1) (or -0.26 + or - 0.05 ms yr super(-1)). Our observed rate of orbital decay is consistent with this expectation. J0651 is currently the second-loudest gravitational wave source known in the milli-Hertz range and the loudest non-interacting binary, which makes it an excellent verification source for future missions aimed at directly detecting gravitational waves. 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Letters</title><description>We report the detection of orbital decay in the 12.75-minute, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13 month baseline constrain the orbital period to 765.206543(55) s and indicate that the orbit is decreasing at a rate of (-9.8 + or - 2.8) x 10 super(-12) s s super(-1) (or -0.31 + or - 0.09 ms yr super(-1)). We revise the system parameters based on our new photometric and spectroscopic observations: J0651 contains two WDs with M sub(1) = 0.26 + or - 0.04 M sub([middot in circle]) and M sub(2) = 0.50 + or - 0.04 M sub([middot in circle]). General relativity predicts orbital decay due to gravitational wave radiation of (-8.2 + or - 1.7) x 10 super(-12) s s super(-1) (or -0.26 + or - 0.05 ms yr super(-1)). Our observed rate of orbital decay is consistent with this expectation. J0651 is currently the second-loudest gravitational wave source known in the milli-Hertz range and the loudest non-interacting binary, which makes it an excellent verification source for future missions aimed at directly detecting gravitational waves. 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Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hermes, J J</au><au>KILIC, MUKREMIN</au><au>Brown, Warren R</au><au>Winget, D E</au><au>Prieto, Carlos Allende</au><au>GIANNINAS, A</au><au>Mukadam, Anjum S</au><au>Cabrera-Lavers, Antonio</au><au>Kenyon, Scott J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>RAPID ORBITAL DECAY IN THE 12.75-MINUTE BINARY WHITE DWARF J0651+2844</atitle><jtitle>Astrophysical journal. Letters</jtitle><date>2012-10-01</date><risdate>2012</risdate><volume>757</volume><issue>2</issue><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>2041-8205</issn><eissn>2041-8213</eissn><abstract>We report the detection of orbital decay in the 12.75-minute, detached binary white dwarf (WD) SDSS J065133.338+284423.37 (hereafter J0651). Our photometric observations over a 13 month baseline constrain the orbital period to 765.206543(55) s and indicate that the orbit is decreasing at a rate of (-9.8 + or - 2.8) x 10 super(-12) s s super(-1) (or -0.31 + or - 0.09 ms yr super(-1)). We revise the system parameters based on our new photometric and spectroscopic observations: J0651 contains two WDs with M sub(1) = 0.26 + or - 0.04 M sub([middot in circle]) and M sub(2) = 0.50 + or - 0.04 M sub([middot in circle]). General relativity predicts orbital decay due to gravitational wave radiation of (-8.2 + or - 1.7) x 10 super(-12) s s super(-1) (or -0.26 + or - 0.05 ms yr super(-1)). Our observed rate of orbital decay is consistent with this expectation. J0651 is currently the second-loudest gravitational wave source known in the milli-Hertz range and the loudest non-interacting binary, which makes it an excellent verification source for future missions aimed at directly detecting gravitational waves. Our work establishes the feasibility of monitoring this system's orbital period decay at optical wavelengths.</abstract><cop>United States</cop><doi>10.1088/2041-8205/757/2/L21</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY DECAY GENERAL RELATIVITY THEORY GRAVITATIONAL WAVES MONITORING Orbitals ORBITS Photometry WAVELENGTHS WHITE DWARF STARS |
| title | RAPID ORBITAL DECAY IN THE 12.75-MINUTE BINARY WHITE DWARF J0651+2844 |
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