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维基百科

獅子座AD

四月 01, 2023

天球赤道座標： 10h 19m 36.277s，+19° 52′ 12.06″

獅子座AD(Gliese 388)是一顆位於獅子座紅矮星。距離太陽大約有16光年。獅子座AD是一顆光譜分類為M3.5V的主序星。 [4]它是一顆亮度隨機增加的耀星。[5][14]

AD Leonis

獅子座AD上耀斑的U、B、V 和 R光變曲線[1]
觀測資料
曆元 J2000
星座 獅子座
星官
赤經 10h 19m 36.277s[2]
赤緯 +19° 52′ 12.06″[2]
視星等（V） 9.32[3]
特性
光谱分类M3.5eV[4]
U−B 色指数+1.06[3]
B−V 色指数+1.54[3]
变星类型耀星[5]
天体测定
徑向速度 (Rv)+10.8[6] km/s
自行 (μ) 赤经：–501.8[2] mas/yr
赤纬：–42.8[2] mas/yr
视差 (π)201.4064 ± 0.0296[7] mas
距离16.194 ± 0.002 ly
(4.9651 ± 0.0007 pc)
绝对星等 (MV)10.87[8]
詳細資料
質量0.39–0.42[8][9] M☉
半徑0.39[9] R☉
表面重力 (log g)4.79[10]
亮度0.024[10] L☉
溫度3,390 ± 19[11] K
金属量 [Fe/H]+0.28 ± 0.17[11] dex
自轉速度 (v sin i)3[9][12] km/s
年齡25-300[13] Myr
其他命名
Gliese 388, BD+20 2465, G 54-23, LHS 5167, LTT 12761, NLTT 24015, SAO 81292, PLX 2420, TYC 1423-174-1[14]
參考資料庫
SIMBAD资料
AD Leonis
獅子座AD在獅子座的位置

特性

獅子座AD是一顆M型星，光譜類型為M3.5eV，表明它是一顆主序星。它的視星等為9.43。[8][10] 它大約有太陽質量的39–42%——高於恆星完全對流的質量[15] — 和太陽半徑的39%。[8][9]這顆恆星的預計自轉速度僅為3 公里/秒，[12]但它每 2.24 天完成一次自轉。[15]它是一顆相對年輕的恆星，估計年齡為25億年，[13]並被認為是年輕盤星族的一員。[16]

1943年麦考密克天文台的自行研究中，它被懷疑有伴星。然而，1968 年的一項研究未能證實這一結果。[17] 1997年使用近紅外散斑干涉儀進行的搜索未能檢測到一顆距離恆星1-10個天文單位的伴星。[18]2001年，光學日冕儀被用來對這顆恆星進行示例，但沒有發現伴星。[19]它的徑向速度沒有變化的跡象，表明存在看不見的伴星。[10]

這顆恆星以0.028的離心率繞銀河系運行。這使得恆星距離銀心近8.442kpc，遠至8.926kpc。軌道傾角將它帶到距銀河系平面0.121 kpc遠的地方。[20]

2021年，XMM-Newton在 X 射線和TESS在光學上同時觀測到獅子座AD上的超級耀斑。[21]

參見

參考資料

  1. ^ Hawley, Suzanne L.; Pettersen, Bjorn R. The Great Flare of 1985 April 12 on AD Leonis. The Astrophysical Journal. September 1991, 378: 725 [17 January 2022]. Bibcode:1991ApJ...378..725H. doi:10.1086/170474. 
  2. ^ 2.0 2.1 2.2 2.3 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; et al. The Tycho-2 catalogue of the 2.5 million brightest stars. Astronomy and Astrophysics. March 2000, 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862. 
  3. ^ 3.0 3.1 3.2 Nicolet, B. Catalogue of homogeneous data in the UBV photoelectric photometric system. Astronomy and Astrophysics Supplement Series. October 1978, 34: 1–49. Bibcode:1978A&AS...34....1N. 
  4. ^ 4.0 4.1 Shkolnik, Evgenya; Liu, Michael C.; Reid, I. Neill. Identifying the young low-mass stars within 25 pc. I. Spectroscopic observations. The Astrophysical Journal. July 2009, 699 (1): 649–666. Bibcode:2009ApJ...699..649S. S2CID 118623086. arXiv:0904.3323  . doi:10.1088/0004-637X/699/1/649. 
  5. ^ 5.0 5.1 Kukarkin, B. V.; Kholopov, P. N.; Pskovsky, Y. P.; Efremov, Y. N.; Kukarkina, N. P.; Kurochkin, N. E.; Medvedeva, G. I. The third edition, containing information on 20,437 variable stars discovered and designated till 1968. General Catalogue of Variable Stars 3rd. 1971. Bibcode:1971GCVS3.C......0K. 
  6. ^ Evans, D. S. The revision of the General Catalogue of Radial Velocities. Batten, Alan Henry; Heard, John Frederick (编). Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30. University of Toronto: International Astronomical Union. 20–24 June 1966. Bibcode:1967IAUS...30...57E. 
  7. ^ Brown, A. G. A.; et al. Gaia Early Data Release 3: Summary of the contents and survey properties. Astronomy & Astrophysics. 2021, 649: A1. Bibcode:2021A&A...649A...1G. S2CID 227254300. arXiv:2012.01533  . doi:10.1051/0004-6361/202039657  .  已忽略未知参数|collaboration= (帮助) (勘误: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  8. ^ 8.0 8.1 8.2 8.3 The One Hundred Nearest Star Systems. Georgia State University. 1 January 2009 [2009-09-25].  已忽略未知参数|collaboration= (帮助)
  9. ^ 9.0 9.1 9.2 9.3 Reiners, Ansgar; Basri, Gibor; Browning, Matthew. Evidence for magnetic flux saturation in rapidly rotating M stars (PDF). The Astrophysical Journal. February 2009, 692 (1): 538–545. Bibcode:2009ApJ...692..538R. S2CID 15833388. arXiv:0810.5139  . doi:10.1088/0004-637X/692/1/538. hdl:10871/10302. 
  10. ^ 10.0 10.1 10.2 10.3 Pettersen, B. R.; Coleman, L. A. Chromospheric lines in red dwarf flare stars, I - AD Leonis and GX Andromedae. Astrophysical Journal. December 1981, 251 (12): 571–82. Bibcode:1981ApJ...251..571P. doi:10.1086/159500. 
  11. ^ 11.0 11.1 Rojas-Ayala, Bárbara; Covey, Kevin R.; Muirhead, Philip S.; Lloyd, James P. Metallicity and temperature indicators in M dwarf K band spectra: Testing new and updated calibrations with observations of 133 Solar neighborhood M dwarfs. The Astrophysical Journal. April 2012, 748 (2): 93. Bibcode:2012ApJ...748...93R. S2CID 41902340. arXiv:1112.4567  . doi:10.1088/0004-637X/748/2/93. 
  12. ^ 12.0 12.1 Reiners, Ansgar. The narrowest M dwarf line profiles and the rotation-activity connection at very slow rotation. Astronomy and Astrophysics. May 2007, 467 (1): 259–268. Bibcode:2007A&A...467..259R. S2CID 8672566. arXiv:astro-ph/0702634  . doi:10.1051/0004-6361:20066991. 
  13. ^ 13.0 13.1 Shkolnik, Evgenya; Liu, Michael C.; Reid, I. Neill. Identifying the young low-mass stars within 25 pc. I. Spectroscopic observations. The Astrophysical Journal. July 2009, 699 (1): 649–666. Bibcode:2009ApJ...699..649S. S2CID 118623086. arXiv:0904.3323  . doi:10.1088/0004-637X/699/1/649. 
  14. ^ 14.0 14.1 V* AD Leo – Flare Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2009-09-25]. 
  15. ^ 15.0 15.1 Reiners, Ansgar; Basri, Gibor. On the magnetic topology of partially and fully convective stars. Astronomy and Astrophysics. March 2009, 496 (3): 787–790. Bibcode:2009A&A...496..787R. S2CID 15159121. arXiv:0901.1659  . doi:10.1051/0004-6361:200811450. 
  16. ^ Sciortino, S.; Maggio, A.; Favata, F.; Orlando, S. X-ray spectroscopy of the active dM stars: AD Leo and EV Lac. Astronomy & Astrophysics. February 1999, 342 (2): 502–14. Bibcode:1999A&A...342..502S. 
  17. ^ Lippincott, S. L. Astrometric study of BD+20 2465 from photographs taken with the Sproul 24 inch refractor. Astronomical Journal. March 1969, 74: 224–228. Bibcode:1969AJ.....74..224L. doi:10.1086/110795. 
  18. ^ Oppenheimer, B. R.; Golimowski, D. A.; Kulkarni, S. R.; Matthews, K.; Nakajima, T.; Creech-Eakman, M.; Durrance, S.T. A coronagraphic survey for companions of stars within 8 parsecs. The Astronomical Journal. April 2001, 121 (4): 2189–2211. Bibcode:2001AJ....121.2189O. S2CID 119092593. arXiv:astro-ph/0101320  . doi:10.1086/319941. 
  19. ^ Leinert, C.; Henry, T.; Glindemann, A.; McCarthy, D. W., Jr. A search for companions to nearby southern M dwarfs with near-infrared speckle interferometry. Astronomy and Astrophysics. September 1997, 325: 159–166. Bibcode:1997A&A...325..159L. 
  20. ^ Allen, C.; Herrera, M. A. The galactic orbits of nearby UV Ceti stars. Revista Mexicana de Astronomía y Astrofísica. April 1998, 34: 37–46. Bibcode:1998RMxAA..34...37A. 
  21. ^ Stelzer, B.; Caramazza, M.; Raetz, St.; Argiroffi, C.; Coffaro, M. The Great Flare of 2021 November 19 on AD Leo. Simultaneous XMM-Newton and TESS observations. Solar and Stellar Astrophysics. 2022. S2CID 252199896 请检查|s2cid=的值 (帮助). arXiv:2209.05068  . doi:10.1051/0004-6361/202244642. 

外部連結

  • Segura, Antígona; Walkowicz, Lucianne M.; Meadows, Victoria; Kasting, James; Hawley, Suzanne. The effect of a strong stellar flare on the atmospheric chemistry of an Earth-like planet orbiting an M dwarf. Astrobiology. 2010, 10 (7): 751–771. Bibcode:2010AsBio..10..751S. PMC 3103837  . PMID 20879863. arXiv:1006.0022  . doi:10.1089/ast.2009.0376. 

四月 01, 2023
獅子座ad, 天球赤道座標, 277s, gliese, 是一顆位於獅子座紅矮星, 距離太陽大約有16光年, 是一顆光譜分類為m3, 5v的主序星, 它是一顆亮度隨機增加的耀星, leonis上耀斑的u, r光變曲線, 觀測資料曆元, j2000星座, 獅子座星官赤經, 277s, 赤緯, 視星等, 特性光谱分类m3, 色指数, 色指数, 变星类型耀星, 天体测定徑向速度, s自行, 赤经, 赤纬, yr视差, 4064, 0296, mas距离16, 9651, 0007, 绝对星等, 詳細資料質量0, 半徑0,. 天球赤道座標 10h 19m 36 277s 19 52 12 06 獅子座AD Gliese 388 是一顆位於獅子座紅矮星 距離太陽大約有16光年 獅子座AD是一顆光譜分類為M3 5V的主序星 4 它是一顆亮度隨機增加的耀星 5 14 AD Leonis獅子座AD上耀斑的U B V 和 R光變曲線 1 觀測資料曆元 J2000星座 獅子座星官赤經 10h 19m 36 277s 2 赤緯 19 52 12 06 2 視星等 V 9 32 3 特性光谱分类M3 5eV 4 U B 色指数 1 06 3 B V 色指数 1 54 3 变星类型耀星 5 天体测定徑向速度 Rv 10 8 6 km s自行 m 赤经 501 8 2 mas yr 赤纬 42 8 2 mas yr视差 p 201 4064 0 0296 7 mas距离16 194 0 002 ly 4 9651 0 0007 pc 绝对星等 MV 10 87 8 詳細資料質量0 39 0 42 8 9 M 半徑0 39 9 R 表面重力 log g 4 79 10 亮度0 024 10 L 溫度3 390 19 11 K金属量 Fe H 0 28 0 17 11 dex自轉速度 v sin i 3 9 12 km s年齡25 300 13 Myr其他命名Gliese 388 BD 20 2465 G 54 23 LHS 5167 LTT 12761 NLTT 24015 SAO 81292 PLX 2420 TYC 1423 174 1 14 參考資料庫SIMBAD资料AD Leonis獅子座AD在獅子座的位置 目录 1 特性 2 參見 3 參考資料 4 外部連結特性 编辑獅子座AD是一顆M型星 光譜類型為M3 5eV 表明它是一顆主序星 它的視星等為9 43 8 10 它大約有太陽質量的39 42 高於恆星完全對流的質量 15 和太陽半徑的39 8 9 這顆恆星的預計自轉速度僅為3 公里 秒 12 但它每 2 24 天完成一次自轉 15 它是一顆相對年輕的恆星 估計年齡為25億年 13 並被認為是年輕盤星族的一員 16 1943年麦考密克天文台的自行研究中 它被懷疑有伴星 然而 1968 年的一項研究未能證實這一結果 17 1997年使用近紅外散斑干涉儀進行的搜索未能檢測到一顆距離恆星1 10個天文單位的伴星 18 2001年 光學日冕儀被用來對這顆恆星進行示例 但沒有發現伴星 19 它的徑向速度沒有變化的跡象 表明存在看不見的伴星 10 這顆恆星以0 028的離心率繞銀河系運行 這使得恆星距離銀心近8 442kpc 遠至8 926kpc 軌道傾角將它帶到距銀河系平面0 121 kpc遠的地方 20 2021年 XMM Newton在 X 射線和TESS在光學上同時觀測到獅子座AD上的超級耀斑 21 參見 编辑鄰近恆星列表參考資料 编辑 Hawley Suzanne L Pettersen Bjorn R The Great Flare of 1985 April 12 on AD Leonis The Astrophysical Journal September 1991 378 725 17 January 2022 Bibcode 1991ApJ 378 725H doi 10 1086 170474 2 0 2 1 2 2 2 3 Hog E Fabricius C Makarov V V Urban S Corbin T Wycoff G et al The Tycho 2 catalogue of the 2 5 million brightest stars Astronomy and Astrophysics March 2000 355 L27 L30 Bibcode 2000A amp A 355L 27H doi 10 1888 0333750888 2862 3 0 3 1 3 2 Nicolet B Catalogue of homogeneous data in the UBV photoelectric photometric system Astronomy and Astrophysics Supplement Series October 1978 34 1 49 Bibcode 1978A amp AS 34 1N 4 0 4 1 Shkolnik Evgenya Liu Michael C Reid I Neill Identifying the young low mass stars within 25 pc I Spectroscopic observations The Astrophysical Journal July 2009 699 1 649 666 Bibcode 2009ApJ 699 649S S2CID 118623086 arXiv 0904 3323 doi 10 1088 0004 637X 699 1 649 5 0 5 1 Kukarkin B V Kholopov P N Pskovsky Y P Efremov Y N Kukarkina N P Kurochkin N E Medvedeva G I The third edition containing information on 20 437 variable stars discovered and designated till 1968 General Catalogue of Variable Stars 3rd 1971 Bibcode 1971GCVS3 C 0K Evans D S The revision of the General Catalogue of Radial Velocities Batten Alan Henry Heard John Frederick 编 Determination of Radial Velocities and their Applications Proceedings from IAU Symposium no 30 University of Toronto International Astronomical Union 20 24 June 1966 Bibcode 1967IAUS 30 57E Brown A G A et al Gaia Early Data Release 3 Summary of the contents and survey properties Astronomy amp Astrophysics 2021 649 A1 Bibcode 2021A amp A 649A 1G S2CID 227254300 arXiv 2012 01533 doi 10 1051 0004 6361 202039657 已忽略未知参数 collaboration 帮助 勘误 doi 10 1051 0004 6361 202039657e Gaia EDR3 record for this source at VizieR 8 0 8 1 8 2 8 3 The One Hundred Nearest Star Systems Georgia State University 1 January 2009 2009 09 25 已忽略未知参数 collaboration 帮助 9 0 9 1 9 2 9 3 Reiners Ansgar Basri Gibor Browning Matthew Evidence for magnetic flux saturation in rapidly rotating M stars PDF The Astrophysical Journal February 2009 692 1 538 545 Bibcode 2009ApJ 692 538R S2CID 15833388 arXiv 0810 5139 doi 10 1088 0004 637X 692 1 538 hdl 10871 10302 10 0 10 1 10 2 10 3 Pettersen B R Coleman L A Chromospheric lines in red dwarf flare stars I AD Leonis and GX Andromedae Astrophysical Journal December 1981 251 12 571 82 Bibcode 1981ApJ 251 571P doi 10 1086 159500 11 0 11 1 Rojas Ayala Barbara Covey Kevin R Muirhead Philip S Lloyd James P Metallicity and temperature indicators in M dwarf K band spectra Testing new and updated calibrations with observations of 133 Solar neighborhood M dwarfs The Astrophysical Journal April 2012 748 2 93 Bibcode 2012ApJ 748 93R S2CID 41902340 arXiv 1112 4567 doi 10 1088 0004 637X 748 2 93 12 0 12 1 Reiners Ansgar The narrowest M dwarf line profiles and the rotation activity connection at very slow rotation Astronomy and Astrophysics May 2007 467 1 259 268 Bibcode 2007A amp A 467 259R S2CID 8672566 arXiv astro ph 0702634 doi 10 1051 0004 6361 20066991 13 0 13 1 Shkolnik Evgenya Liu Michael C Reid I Neill Identifying the young low mass stars within 25 pc I Spectroscopic observations The Astrophysical Journal July 2009 699 1 649 666 Bibcode 2009ApJ 699 649S S2CID 118623086 arXiv 0904 3323 doi 10 1088 0004 637X 699 1 649 14 0 14 1 V AD Leo Flare Star SIMBAD Centre de Donnees astronomiques de Strasbourg 2009 09 25 15 0 15 1 Reiners Ansgar Basri Gibor On the magnetic topology of partially and fully convective stars Astronomy and Astrophysics March 2009 496 3 787 790 Bibcode 2009A amp A 496 787R S2CID 15159121 arXiv 0901 1659 doi 10 1051 0004 6361 200811450 Sciortino S Maggio A Favata F Orlando S X ray spectroscopy of the active dM stars AD Leo and EV Lac Astronomy amp Astrophysics February 1999 342 2 502 14 Bibcode 1999A amp A 342 502S Lippincott S L Astrometric study of BD 20 2465 from photographs taken with the Sproul 24 inch refractor Astronomical Journal March 1969 74 224 228 Bibcode 1969AJ 74 224L doi 10 1086 110795 Oppenheimer B R Golimowski D A Kulkarni S R Matthews K Nakajima T Creech Eakman M Durrance S T A coronagraphic survey for companions of stars within 8 parsecs The Astronomical Journal April 2001 121 4 2189 2211 Bibcode 2001AJ 121 2189O S2CID 119092593 arXiv astro ph 0101320 doi 10 1086 319941 Leinert C Henry T Glindemann A McCarthy D W Jr A search for companions to nearby southern M dwarfs with near infrared speckle interferometry Astronomy and Astrophysics September 1997 325 159 166 Bibcode 1997A amp A 325 159L Allen C Herrera M A The galactic orbits of nearby UV Ceti stars Revista Mexicana de Astronomia y Astrofisica April 1998 34 37 46 Bibcode 1998RMxAA 34 37A Stelzer B Caramazza M Raetz St Argiroffi C Coffaro M The Great Flare of 2021 November 19 on AD Leo Simultaneous XMM Newton and TESS observations Solar and Stellar Astrophysics 2022 S2CID 252199896 请检查 s2cid 的值 帮助 arXiv 2209 05068 doi 10 1051 0004 6361 202244642 外部連結 编辑Segura Antigona Walkowicz Lucianne M Meadows Victoria Kasting James Hawley Suzanne The effect of a strong stellar flare on the atmospheric chemistry of an Earth like planet orbiting an M dwarf Astrobiology 2010 10 7 751 771 Bibcode 2010AsBio 10 751S PMC 3103837 PMID 20879863 arXiv 1006 0022 doi 10 1089 ast 2009 0376 取自 https zh wikipedia org w index php title 獅子座AD amp oldid 76435585, 维基百科，wiki，书籍，书籍，图书馆，

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