| 词条 | WISE 1800+0134 |
| 释义 |
|name=WISEP J180026.60+013453.1}}{{Starbox observe |epoch=2010.22{{r|Gizis2011}} |equinox=J2000{{r|Gizis2011}} |constell=Ophiuchus |ra={{RA|18|00|26.60}}{{r|Gizis2011}} |dec={{DEC|01|34|53.1}}{{r|Gizis2011}}}}{{Starbox character |class=L7.5{{r|Gizis2011}} |appmag_1_passband=J (2MASS filter system) |appmag_1=14.30 ± 0.04{{r|Gizis2011}} |appmag_2_passband=H (2MASS filter system) |appmag_2=13.12 ± 0.04{{r|Gizis2011}} |appmag_3_passband=KS (2MASS filter system) |appmag_3=12.42 ± 0.03{{r|Gizis2011}} }}{{Starbox astrometry |prop_mo_ra=220 ± 20{{r|Gizis2011}} |prop_mo_dec=−360 ± 20{{r|Gizis2011}} |parallax=124.89 |p_error=3.24 |parallax_footnote={{r|Gizis2015}} }}{{Starbox detail |source={{r|Gizis2011}} |temperature=1430 ± 100 |luminosity=10−4.5 ± 0.3 |mass=0.04—0.074 }}{{Starbox catalog |names=WISEP J180026.60+013453.1{{r|Gizis2011}} W1800+0134{{r|Gizis2011}} 2MASS J18002648+0134565{{r|Gizis2011}} {{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}} J180026.4+013457{{r|Gizis2011}} {{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}}-P J180026.4+013457{{r|Simbad}} }}{{Starbox reference | Simbad=2MASS+J18002648%2B0134565 }}{{Starbox image |image={{Location map|100x100|AlternativeMap=Celestial_map_Oph.svg |caption=|border=infobox|mark=Red_pog.png|marksize=9|width=320 |lat=69.381516551793 |long=29.615279433601 }}|caption= }}{{Starbox end}} WISEP J180026.60+013453.1 (designation is abbreviated to W1800+0134{{r|Gizis2011}}) is a brown dwarf of spectral class L7.5,{{r|Gizis2011}} located in constellation Ophiuchus at approximately 29 light-years from Earth.{{r|Gizis2011}} DiscoveryWISEP J180026.60+013453.1 was discovered in 2011 by Gizis et al. 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 (observed on 2000 September 23) and in the 3rd release of the {{abbr|DENIS|Deep Near Infrared Survey of the Southern Sky}} database (close in time to the 2MASS observation).{{r|Gizis2011}} On 2011 June 22 Gizis et al. had conducted near-infrared spectroscopy with SpeX spectrograph, mounted on the 3 m Infrared Telescope Facility (IRTF), located at the Mauna Kea Observatory in Hawaii.{{r|Gizis2011}} In 2011 Gizis et al. published a paper in The Astronomical Journal, where they presented discovery of a newfound by WISE L-type brown dwarf WISEP J180026.60+013453.1 (a single discovery, presented in the article).{{r|Gizis2011}} Physical propertiesWISEP J180026.60+013453.1 has temperature 1430 ± 100 K and luminosity 10−4.5 ± 0.3 Solar luminosities (the estimates are based on the object's spectral class (L7.5)).{{r|Gizis2011}} Mass estimates, determined from this temperature, are 0.04,[1] 0.05,[2] and 0.074[3] Solar masses, anyway below the hydrogen-burning limit, which implies that WISEP J180026.60+013453.1 is not a true star, but only a substellar object, that is a brown dwarf.{{r|Gizis2011}} Failed test for binarityWISEP J180026.60+013453.1 was tested spectroscopically for L + T binarity, and the binarity was not revealed.{{r|Gizis2011}} Common proper motion companions also were not found.{{r|Gizis2011}} See also
Notes1. ^For an assumed age 0.5 Gyr. 2. ^For an assumed age 1 Gyr. 3. ^For an assumed age 5 Gyr. 4. ^{{cite journal |last=Gizis |first=John E. |author2=Burgasser, Adam J. |author3=Faherty, Jacqueline K. |author4=Castro, Philip J. |author5=Shara, Michael M. |year=2011 |title=WISEP J180026.60+013453.1: A nearby late-L Dwarf near the Galactic Plane |journal=The Astronomical Journal |volume=142 | issue=5 | pages=171 |arxiv=1109.0054 |doi=10.1088/0004-6256/142/5/171 |bibcode=2011AJ....142..171G}} 5. ^{{cite journal | title=Properties of the Nearby Brown Dwarf WISEP J180026.60+013453.1 | last1=Gizis | first1=John E. | last2=Burgasser | first2=Adam J. | last3=Vrba | first3=Frederick | display-authors=1 | journal=The Astronomical Journal | volume=150 | issue=6 | at=179 | date=2015 | arxiv=1509.04690 | bibcode=2015AJ....150..179G | doi=10.1088/0004-6256/150/6/179 }} 6. ^{{cite web | url=http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=2MASS+J18002648%2B0134565&submit=SIMBAD+search | title=2MASS J18002648+0134565 -- Infrared source | work=SIMBAD | publisher=Centre de Données astronomiques de Strasbourg | accessdate=2012-12-24}} References{{reflist|refs=[4][5][6]}}{{Stars of Ophiuchus}} 6 : Brown dwarfs|L-type stars|Ophiuchus (constellation)|WISE objects|2MASS objects|DENIS objects |
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