からす座イータ星とは - わかりやすく解説 Weblio辞書

からす座イータ星

出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2023/10/08 22:06 UTC 版)

からす座η星（からすざイータせい、η Corvi、η Cor）は、からす座で6番目に明るくみえる恒星で、F型主系列星である。2つの残骸円盤（英語版）が、恒星を取り巻いているのが検出されており、内側の温度がやや高いものは数AU、外側のものは150AUくらいの半径があるとみられる。

脚注

注釈

^ ^a ^b パーセクは1 ÷ 年周視差（秒）より計算、光年は1÷年周視差（秒）×3.2615638より計算
^ 出典での表記は、 $\log g[{\mbox{cgs}}]=4.5$

出典

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^ ^a ^b ^c ^d ^e ^f ^g ^h Lisse, C. M.; et al. (2012-03), “Spitzer Evidence for a Late Heavy Bombardment and the Formation of Urelites in η Corvi at ~1 Gyr”, Astrophysical Journal 747 (2): 93, arXiv:1110.4172, Bibcode: 2012ApJ...747...93L, doi:10.1088/0004-637X/747/2/93
^ ^a ^b ^c ^d ^e ^f ^g Lebreton, J.; et al. (2016-02), “Models of the η Corvi Debris Disk from the Keck Interferometer, Spitzer, and Herschel”, Astrophysical Journal 817 (2): 165, Bibcode: 2016ApJ...817..165L, doi:10.3847/0004-637X/817/2/165
^ ^a ^b ^c Chen, C. H.; et al. (2006-09), “Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks”, Astrophysical Journal Supplement Series 166 (1 pages=315-377), Bibcode: 2006ApJS..166..351C, doi:10.1086/505751
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^ ^a ^b ^c ^d ^e ^f ^g Marino, S.; et al. (2017-03), “ALMA observations of the η Corvi debris disc: inward scattering of CO-rich exocomets by a chain of 3-30 M_⊕ planets?”, Monthly Notices of the Royal Astronomical Society 465 (3): 2595-2615, Bibcode: 2017MNRAS.465.2595M, doi:10.1093/mnras/stw2867
^ ^a ^b ^c ^d Duchêne, G.; et al. (2014-04), “Spatially Resolved Imaging of the Two-component η Crv Debris Disk with Herschel”, Astrophysical Journal 784 (2): 148, arXiv:1402.1184, Bibcode: 2014ApJ...784..148D, doi:10.1088/0004-637X/784/2/148
^ Beichman, C. A.; et al. (2006-12), “New Debris Disks around Nearby Main-Sequence Stars: Impact on the Direct Detection of Planets”, Astrophysical Journal 652 (2): 1674-1693, Bibcode: 2006ApJ...652.1674B, doi:10.1086/508449
^ Smith, R.; Wyatt, M. C.; Dent, W. R. F. (2008-07), “The nature of mid-infrared excesses from hot dust around Sun-like stars”, Astronomy & Astrophysics 485 (3): 897-915, arXiv:0804.4580, Bibcode: 2008A&A...485..897S, doi:10.1051/0004-6361:20078719
^ Smith, R.; Wyatt, M. C.; Haniff, C. A. (2009-08), “Resolving the hot dust around HD69830 and η Corvi with MIDI and VISIR”, Astronomy & Astrophysics 503 (1): 265-279, Bibcode: 2009A&A...503..265S, doi:10.1051/0004-6361/200911626
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^ Mennesson, B.; et al. (2014-12), “Constraining the Exozodiacal Luminosity Function of Main-sequence Stars: Complete Results from the Keck Nuller Mid-infrared Surveys”, Astrophysical Journal 797 (2): 119, Bibcode: 2014ApJ...797..119M, doi:10.1088/0004-637X/797/2/119
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