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WISE 2313-8037

天球赤道座标星图 23h 13m 36.45s, −80° 37′ 00.7″
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WISEPA J231336.40-803700.3
观测资料
历元 MJD 55480.40[1]
星座 南极座
星官
赤经 23h 13m 36.45s[1]
赤纬 -80° 37′ 00.7″[1]
视星等(V)
特性
光谱分类T8[1]
视星等 (J (2MASS过滤系统))16.974 ± 0.236[1]
视星等 (H (2MASS过滤系统))>16.192[1]
视星等 (KS (2MASS过滤系统))>16.358[1]
天体测定
自行 (μ) 赤经:237 ± 24[1] mas/yr
赤纬:-401 ± 28[1] mas/yr
距离30.3 ± 1.3[2] ly
(9.3 ± 0.4[2] pc)
详细资料
表面重力 (log g)4.0 ± 0.3[2]
温度600 ± 30[2] K
年龄0.3 ± 0.4[2] Gyr
其他命名
WISEPA J231336.40-803700.3[1], WISE J2313-8037[1]

WISEPA J231336.40-803700.3(缩写为WISE 2313-8037)是一颗光谱类型 T8 的暗淡棕矮星,有浓密的大气层[2][1],位于南极座。它是广域红外线巡天探测卫星于2011年发现的106颗棕矮星(棕矮星联星系统则算两颗[3])其中一颗。它是年龄只有大约3亿年的年轻棕矮星[2]。以测光方式量测得知它距离地球大约11.2秒差距(36.5光年)[1]。另有两个量测认为它的距离是11.7 ± 1.6秒差距(38.2 ± 5.2光年,测光方式)和9.3 ± 0.4秒差距(30.3 ± 1.3光年,光谱模型)[2]。WISE 2313-8037的状况可能暗示了年轻棕矮星有较浓密大气层的趋势[2]

参见

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  • WISE 1617+1807:另一颗年轻的含浓密大气层T8型棕矮星。

参考资料

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  1. ^ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amy K.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E.; Petty, Sara M.; Stanford, Spencer Adam; Tsai, Chao-Wei; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Bochanski, John J.; Burgasser, Adam J.; Capak, Peter L.; Cruz, Kelle L.; Hinz, Philip M.; Kartaltepe, Jeyhan S.; Knox, Russell P.; Manohar, Swarnima; Masters, Daniel; Morales-Calderon, Maria; Prato, Lisa A.; Rodigas, Timothy J.; Salvato, Mara; Schurr, Steven D.; Scoville, Nicholas Z.; Simcoe, Robert A.; Stapelfeldt, Karl R.; Stern, Daniel; Stock, Nathan D.; Vacca, William D. The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE). The Astrophysical Journal Supplement. 2011, 197 (2): 19. Bibcode:2011ApJS..197...19K. S2CID 16850733. arXiv:1108.4677v1可免费查阅. doi:10.1088/0067-0049/197/2/19. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Burgasser, Adam J.; Cushing, Michael C.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Griffith, Roger L.; Looper, Dagny L.; Tinney, Christopher; Simcoe, Robert A.; Bochanski, John J.; Skrutskie, Michael F.; Mainzer, A.; Thompson, Maggie A.; Marsh, Kenneth A.; Bauer, James M.; Wright, Edward L. Fire Spectroscopy of Five Late-type T Dwarfs Discovered with the Wide-field Infrared Survey Explorer. The Astrophysical Journal. 2011, 735 (2): 116. Bibcode:2011ApJ...735..116B. S2CID 19003973. arXiv:1104.2537可免费查阅. doi:10.1088/0004-637X/735/2/116. 
  3. ^ Gelino, Christopher R.; Kirkpatrick, J. Davy; Cushing, Michael C.; Eisenhardt, Peter R.; Griffith, Roger L.; Mainzer, Amanda K.; Marsh, Kenneth A.; Skrutskie, Michael F.; Wright, Edward L. WISE Brown Dwarf Binaries: The Discovery of a T5+T5 and a T8.5+T9 System. The Astronomical Journal. 2011, 142 (2): 57. Bibcode:2011AJ....142...57G. S2CID 51345460. arXiv:1106.3142可免费查阅. doi:10.1088/0004-6256/142/2/57.