| 词条 | WISE 0607+2429 | |||||||||
| 释义 |
|name=WISEP J060738.65+242953.4}}{{Starbox observe |epoch=2010.30{{r|Castro & Gizis2012}} |equinox=J2000{{r|Castro & Gizis2012}} |constell=Gemini |ra={{RA|06|07|38.65}}{{r|Castro & Gizis2012}} |dec={{DEC|24|29|53.5}}{{r|Castro & Gizis2012}}}}{{Starbox character |class=L8{{r|Castro & Gizis2012}} |appmag_1_passband=i |appmag_1=20.02 ± 0.03{{r|Castro & Gizis2012}} |appmag_2_passband=z |appmag_2=16.94 ± 0.01{{r|Castro & Gizis2012}} |appmag_3_passband=J (2MASS filter system) |appmag_3=14.22 ± 0.03{{r|Castro & Gizis2012}} |appmag_4_passband=H (2MASS filter system) |appmag_4=13.04 ± 0.03{{r|Castro & Gizis2012}} |appmag_5_passband=KS (2MASS filter system) |appmag_5=12.47 ± 0.02{{r|Castro & Gizis2012}} }}{{Starbox astrometry |prop_mo_ra=-470 ± 10{{r|Castro & Gizis2012}} |prop_mo_dec=-330 ± 20{{r|Castro & Gizis2012}} |dist_ly=25.4{{±|4.6|3.9}}{{r|Castro & Gizis2012}} |dist_pc=7.8{{±|1.4|1.2}}{{r|Castro & Gizis2012}} }}{{Starbox detail |source={{r|Castro & Gizis2012}} |temperature=1460 ± 90 |luminosity=10−4.56 ± 0.09 |mass=0.03—0.072 }}{{Starbox catalog |names=WISEP J060738.65+242953.4{{r|Castro & Gizis2012}} W0607+2429{{r|Castro & Gizis2012}} 2MASSW J06073908+2429574{{r|Castro & Gizis2012}} 2MASS J06073908+2429574{{r|Simbad}} SDSS J060738.79+242954.4{{r|Castro & Gizis2012}} }}{{Starbox reference | Simbad=2MASS+J06073908%2B2429574 }}{{Starbox end}} WISEP J060738.65+242953.4 (designation is abbreviated to W0607+2429{{r|Castro & Gizis2012}}) is a brown dwarf of spectral class L8,{{r|Castro & Gizis2012}} located in constellation Gemini at approximately 25 light-years from Earth.{{r|Castro & Gizis2012}} DiscoveryWISEP J060738.65+242953.4 was discovered in 2012 by Castro & Gizis from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. There are also precovery identifications of this object in Two Micron All-Sky Survey (2MASS) data (observation epoch 1998.11) and in the Sloan Digital Sky Survey (SDSS) ({{abbr|DR7|Data Release 7}}) (observation epoch 2006.98).{{r|Castro & Gizis2012}} In 2012 Castro & Gizis published a paper in The Astrophysical Journal, where they presented discovery of a newfound by WISE L-type brown dwarf WISEP J060738.65+242953.4 (a single discovery, presented in the article).{{r|Castro & Gizis2012}} DistanceTrigonometric parallax of WISEP J060738.65+242953.4 is not yet measured. Therefore, there are only distance estimates of this object, obtained by indirect — spectrophotometric — means (see table).
Physical propertiesWISEP J060738.65+242953.4 has temperature 1460 ± 90 K and bolometric luminosity 10−4.56 ± 0.09 Solar luminosities (the estimates are based on the object's spectral class (L8)).{{r|Gizis2011}} Mass estimates, determined from this temperature, are from 0.03 (for an assumed age 0.5 Gyr) to 0.072 (for an assumed age 10 Gyr) Solar masses, anyway below the hydrogen-burning limit, which implies that WISEP J060738.65+242953.4 is not a true star, but only a substellar object.{{r|Gizis2011}} While some researchers had claimed that WISEP J060738.65+242953.4 may be viewed from its pole, or may rotate slowly because of its narrow spectral lines, later work demonstrated that both of these claims were unlikely.[1] This latter study estimated that the size of the radio-emitting magnetosphere is approximately 107 m. See also
References1. ^{{cite journal|last1=Route|first1=Matthew|title=Is WISEP J060738.65+242953.4 Really A Magnetically Active, Pole-on L Dwarf?|journal=The Astrophysical Journal|date=July 10, 2017|volume=843|page=115|doi=10.3847/1538-4357/aa78ab|arxiv=1706.03010|bibcode=2017ApJ...843..115R}} [2][3]2. ^{{cite journal |last1=Castro |first1=Philip J. |last2=Gizis |first2=John E. |year=2012 |title=Discovery of a Late L Dwarf: WISEP J060738.65+242953.4 |journal=The Astrophysical Journal |volume=746 | issue=1 | pages=3 |arxiv=1110.4351 |doi=10.1088/0004-637X/746/1/3 |bibcode=2012ApJ...746....3C}} 3. ^{{cite web | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASS+J06073908%2B2429574&submit=SIMBAD+search | title=2MASS J06073908+2429574 -- Infrared source | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | accessdate=2012-12-24}} }}{{Stars of Gemini}} 6 : Brown dwarfs|L-type stars|Gemini (constellation)|WISE objects|2MASS objects|SDSS objects |
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