fbpx
维基百科

仙女座Z

仙女座Z是一對由紅巨星白矮星組合的共生聯星英语symbiotic binary。它是激變變星的一種,被稱為共生變星,並且是這種變星的原型,所以共生變星也稱為仙女座Z型變星

仙女座Z
觀測資料
曆元 J2000
星座 仙女座
星官
赤經 23h 33m 39.9551s[1]
赤緯 +48° 49′ 05.975″[1]
視星等(V) 7.7 - 11.3[2]
特性
光谱分类M2III + B1eq[3]
U−B 色指数−0.49[4]
B−V 色指数+1.35[4]
变星类型仙女座Z型變星英语Symbiotic binary[2]
天体测定
徑向速度 (Rv)-0.59[5] km/s
自行 (μ) 赤经:-1.577 ± 0.111[1] mas/yr
赤纬:-3.031 ± 0.134 [1] mas/yr
视差 (π)0.62 ± 0.40[1] mas
距离大约5000 ly
(大约2000 pc)
軌道
繞行週期 (P)759.0±1.9[6] days
偏心率 (e)0.0[6]
倾斜角 (i)47±12[7]°
半振幅 (K1)
(primary)
6.73±0.22[6] km/s
詳細資料
紅巨星
質量2[6] M
半徑85[3] R
亮度880[8] L
溫度3,400[3] K
白矮星
質量0.75[6] M
半徑0.17 - 0.36[9] R
亮度1,500 - 9,800[9] L
溫度90,000 - 150,000[9] K
其他命名
MWC 416、HIP 116287, SAO 53146、AG+48° 2087、GCRV 14773、IRAS 23312+4832、HV 193, AN 41.1901, JP11英语JP11 3636、TYC 3645-2066-1, BD+48° 4093、GSC 03645-02066、2MASS J23333994+4849059、AAVSO 2328+48、2E 2331.6+4834、HD 221650, PLX 5697、 2E 4735、PPM 64386.
參考資料庫
SIMBAD资料
资料来源:
依巴谷星表CCDM (2002)、亮星星表

聯星系統 编辑

仙女座Z是一對聯星,這兩顆星的迴圈軌道週期為759天[6]。 紅巨星的質量大約是太陽的兩倍,表面有效溫度僅2800K,但它的光度是太陽的880倍。白矮星在寧靜狀態的光度大約是太陽的1,000倍,但在活躍階段的光度會增加至10倍。它的溫度在寧靜狀態時是150,000K,在活躍時下降至低於100,000K[9]

共生變星 编辑

仙女座Z是共生變星的原型,它是激變變星的一種類型。共生變星有多種多樣的群,通常分為幾個子群,其中一群以仙女座Z命名[10]

仙女座Z型變星,包括仙女座Z自身,顯示出不規則的變化,在間隔幾年爆發時,亮度會有數星等的改變。通常它們由一顆紅巨星和一顆白矮星星組成,以數年的周期在軌道上互繞著。紅巨星的恆星風會被白矮星電離,造成在軌道上不同的位置,星雲的輻射強度會稍有變化。這是在寧靜時的狀態,活躍時白矮星的體積增大、表面溫度下降,而變得更加明亮。整個聯星系統的亮度會增加2-4星等 [8]

光譜 编辑

自20世紀初以來,仙女座Z的頻譜一直被認為極其奇特。在明亮階段的早期頻譜,只相對於紅色的連續譜呈現明亮的發射線,對此的解釋為恆星被嵌入密集的雲氣內[11]。當恆星的度度減弱時,光譜失去了雲氣被激發的譜線,並且發展出吸收譜線,就展現出天鵝座P剖面的吸收線。這樣的光譜很容易確認是一顆像新興的高溫星與一顆低溫恆星的組合[12]

MK光譜分類,通常是一顆低溫的巨星,例如M4.5[3]。確切的光譜類型被證明會改變,例如在1987年是M5,在1989年是M3.5[13]。紅外線觀測的光譜類型是復合的M2III + B1eq。此處的光度分類III表示是一顆正常的巨星,特殊代碼eq指示出有發射譜線與天鵝座P剖面型的譜線[3]

雙極噴流 编辑

2006年爆發之後,包括速度±1,150 公里/秒的微弱翼都有氫氣巴耳末發射線,準直的噴流則沿著系統的軸線發射。在2000年至2002年的長期爆發中,觀察到廣泛的無線電波。據認為,噴流只出現在明亮的爆發 [14]

參考資料 编辑

  1. ^ 1.0 1.1 1.2 1.3 1.4 Gaia Collaboration; Brown, A. G. A; Vallenari, A; Prusti, T; De Bruijne, J. H. J; Mignard, F; Drimmel, R; Babusiaux, C; Bailer-Jones, C. A. L; Bastian, U; Biermann, M; Evans, D. W; Eyer, L; Jansen, F; Jordi, C; Katz, D; Klioner, S. A; Lammers, U; Lindegren, L; Luri, X; O'Mullane, W; Panem, C; Pourbaix, D; Randich, S; Sartoretti, P; Siddiqui, H. I; Soubiran, C; Valette, V; Van Leeuwen, F; et al. Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties. Astronomy & Astrophysics. 2016, 595: A2. Bibcode:2016A&A...595A...2G. arXiv:1609.04172 . doi:10.1051/0004-6361/201629512. 
  2. ^ 2.0 2.1 Samus, N. N.; Durlevich, O. V.; et al. VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013). VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 2009, 1. Bibcode:2009yCat....102025S. 
  3. ^ 3.0 3.1 3.2 3.3 3.4 Shenavrin, V. I.; Taranova, O. G.; Nadzhip, A. E. Search for and study of hot circumstellar dust envelopes. Astronomy Reports. 2011, 55: 31. Bibcode:2011ARep...55...31S. doi:10.1134/S1063772911010070. 
  4. ^ 4.0 4.1 Martel, M. T; Gravina, R. UBV Observations of Symbiotic Stars in July and October 1982. Information Bulletin on Variable Stars. 1985, 2750: 1. Bibcode:1985IBVS.2750....1M. 
  5. ^ Pourbaix, D; Tokovinin, A. A; Batten, A. H; Fekel, F. C; Hartkopf, W. I; Levato, H; Morrell, N. I; Torres, G; Udry, S. SB9: The ninth catalogue of spectroscopic binary orbits. Astronomy and Astrophysics. 2004, 424 (2): 727. Bibcode:2004A&A...424..727P. arXiv:astro-ph/0406573 . doi:10.1051/0004-6361:20041213. 
  6. ^ 6.0 6.1 6.2 6.3 6.4 6.5 Fekel, Francis C; Hinkle, Kenneth H; Joyce, Richard R; Skrutskie, Michael F. Infrared Spectroscopy of Symbiotic Stars. II. Orbits for Five S-Type Systems with Two-Year Periods. The Astronomical Journal. 2000, 120 (6): 3255. Bibcode:2000AJ....120.3255F. doi:10.1086/316872. 
  7. ^ Leibowitz, Elia M; Formiggini, Liliana. Activity cycle of the giant star of Z Andromedae and its spin period. Mon. Not. R. Astron. Soc. 2008, 385: 445. Bibcode:2008MNRAS.385..445L. arXiv:0712.2120 . doi:10.1111/j.1365-2966.2008.12847.x. 
  8. ^ 8.0 8.1 Skopal, A. Discovery of the eclipse in the symbiotic binary Z Andromedae. The Astrophysical Journal. 2003, 401 (3): L17. Bibcode:2003A&A...401L..17S. arXiv:astro-ph/0304046 . doi:10.1051/0004-6361:20030332. 
  9. ^ 9.0 9.1 9.2 9.3 Sokoloski, J. L; Kenyon, S. J; Espey, B. R; Keyes, Charles D; McCandliss, S. R; Kong, A. K. H; Aufdenberg, J. P; Filippenko, A. V; Li, W; Brocksopp, C; Kaiser, Christian R; Charles, P. A; Rupen, M. P; Stone, R. P. S. A Combination Nova Outburst in Z Andromedae: Nuclear Shell Burning Triggered by a Disk Instability. The Astrophysical Journal. 2006, 636 (2): 1002. Bibcode:2006ApJ...636.1002S. arXiv:astro-ph/0509638 . doi:10.1086/498206. 
  10. ^ Z Andromedae star. [2018-01-16]. (原始内容存档于2012-07-06). 
  11. ^ Plaskett, J. S. The composite stellar and nebular spectrum of Z Andromedae. Publications of the Dominion Astrophysical Observatory Victoria. 1928, 4: 119. Bibcode:1928PDAO....4..119P. 
  12. ^ Swings, P; Struve, O. The Evolution of a Peculiar Stellar Spectrum: Z Andromedae. Astrophysical Journal. 1941, 93: 356. Bibcode:1941ApJ....93..356S. doi:10.1086/144272. 
  13. ^ Mürset, U; Schmid, H. M. Spectral classification of the cool giants in symbiotic systems. Astronomy and Astrophysics Supplement. 1999, 137 (3): 473. Bibcode:1999A&AS..137..473M. doi:10.1051/aas:1999105. 
  14. ^ Burmeister, M; Leedjärv, L. Evidence for bipolar jets from the optical spectra of the prototypical symbiotic star Z Andromedae. The Astrophysical Journal. 2006, 461: L5. Bibcode:2007A&A...461L...5B. arXiv:astro-ph/0611475 . doi:10.1051/0004-6361:20066630. 

進階讀物 编辑

  • Tomov, N. A; Tomova, M. T; Taranova, O. G. Broad-band multicolour observations of the symbiotic binary Z And during quiescence and its activity at the end of 2002. The Astrophysical Journal. 2004, 428 (3): 985. Bibcode:2004A&A...428..985T. doi:10.1051/0004-6361:20041065. 
  • Taranova, O. G; Tomov, N. A; Tomova, M. T; Shenavrin, V. I. The symbiotic system Z Andromedae during the flare of 2000–2002. Astronomy Reports. 2004, 48 (9): 742. Bibcode:2004ARep...48..742T. doi:10.1134/1.1800174. 
  • Ikeda, Yuji; Akitaya, Hiroshi; Matsuda, Kentaro; Homma, Ken'Ichi; Seki, Munezo; Kawabata, Koji S; Hirata, Ryuko; Okazaki, Akira. Polarized Hα Wings in the Symbiotic Stars AG Draconis and Z Andromedae. The Astrophysical Journal. 2004, 604: 357. Bibcode:2004ApJ...604..357I. doi:10.1086/381877. 
  • Tomov, N. A; Taranova, O. G; Tomova, M. T. Mass ejection by the symbiotic binary Z And during its 2000–2002 outburst. The Astrophysical Journal. 2003, 401 (2): 669. Bibcode:2003A&A...401..669T. doi:10.1051/0004-6361:20030140. 
  • Sokoloski, J. L; Brocksopp, C; Kaiser, C; Seymour, N. A Radio "Jet" in the Prototypical Symbiotic Star Z Andromedae?. American Astron. Soc. Meeting. 2002, 201: 17.12. Bibcode:2002AAS...201.1712S. 
  • Bisikalo, D. V; Boyarchuk, A. A; Kilpio, E. Yu; Kuznetsov, O. A. Structure of gas flows in Z and in quiescence and during outbursts. Astronomy Reports. 2002, 46 (12): 1022. Bibcode:2002ARep...46.1022B. doi:10.1134/1.1529260. 
  • Gallego, M. C; Garcia, J. A; Vaquero, J. M; Sanchez Bajo, F. A Strange Attractor on a Daily Timescale in the Visual Observations of Z And?. Acta Astron. 1999, 49: 171. Bibcode:1999AcA....49..171G. 
  • Sokoloski, J. L; Bildsten, Lars. Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae. The Astrophysical Journal. 1999, 517 (2): 919. Bibcode:1999ApJ...517..919S. arXiv:astro-ph/9812294 . doi:10.1086/307234. 
  • Birriel, Jennifer J; Espey, Brian R; Schulte-Ladbeck, Regina E. Near-simultaneous Observations of Direct and Raman-scattered Linesin the Symbiotic Star Z Andromedae. The Astrophysical Journal. 1998, 507: L75. Bibcode:1998ApJ...507L..75B. doi:10.1086/311673. 
  • Schmid, H. M; Schild, H. The polarimetric orbit of Z Andromedae. Astronomy & Astrophysics. 1997, 327: 219. Bibcode:1997A&A...327..219S. 
  • Skopal, A; Vittone, A. A; Errico, L; Otsuka, M; Tamura, S; Wolf, M; Elkin, V. G. Structure of the hot object in the symbiotic prototype Z Andromedae during its 2000–03 active phase. The Astrophysical Journal. 2006, 453: 279. Bibcode:2006A&A...453..279S. arXiv:astro-ph/0603718 . doi:10.1051/0004-6361:20052917. 
  • Skopal, A; Pribulla, T. The first detection of the bipolar jets from the symbiotic prototype Z and. The Astronomer's Telegram. 2006, 882. Bibcode:2006ATel..882....1S. 
  • Sokoloski, J. L; Kenyon, S. J; Espey, B. R; Keyes, Charles D; McCandliss, S. R; Kong, A. K. H; Aufdenberg, J. P; Filippenko, A. V; Li, W; Brocksopp, C; Kaiser, Christian R; Charles, P. A; Rupen, M. P; Stone, R. P. S. A "Combination Nova" Outburst in Z Andromedae: Nuclear Shell Burning Triggered by a Disk Instability. The Astrophysical Journal. 2006, 636 (2): 1002. Bibcode:2006ApJ...636.1002S. arXiv:astro-ph/0509638 . doi:10.1086/498206. 
  • Tomov, N. A; Tomova, M. T; Bisikalo, D. V. Bipolar ejection by the symbiotic binary system Z and during its 2006 outburst. Mon. Not. R. Astron. Soc. 2007, 376: L16. Bibcode:2007MNRAS.376L..16T. arXiv:astro-ph/0612502 . doi:10.1111/j.1745-3933.2007.00277.x. 
  • Iudin, B. F. Choice of a model for Z Andromedae. Astronomicheskii Zhurnal. 1986, 63: 137. Bibcode:1986AZh....63..137I. 

外部連結 编辑

  • Image Z Andromedae
  • AAVSO chart for Z Andromedae(页面存档备份,存于互联网档案馆
  • AAVSO long-term light curve of Z And[失效連結]
  • Z Andromedae: The Prototype of the Symbiotic Class(页面存档备份,存于互联网档案馆) AAVSO

仙女座z, 是一對由紅巨星和白矮星組合的共生聯星, 英语, symbiotic, binary, 它是激變變星的一種, 被稱為共生變星, 並且是這種變星的原型, 所以共生變星也稱為型變星, 觀測資料曆元, j2000星座, 仙女座星官赤經, 9551s, 赤緯, 視星等, 特性光谱分类m2iii, b1eq, 色指数, 色指数, 变星类型型變星, 英语, symbiotic, binary, 天体测定徑向速度, s自行, 赤经, 赤纬, yr视差, mas距离大约5000, 大约2000, 軌道繞行週期, 7002. 仙女座Z是一對由紅巨星和白矮星組合的共生聯星 英语 symbiotic binary 它是激變變星的一種 被稱為共生變星 並且是這種變星的原型 所以共生變星也稱為仙女座Z型變星 仙女座Z 觀測資料曆元 J2000星座 仙女座星官赤經 23h 33m 39 9551s 1 赤緯 48 49 05 975 1 視星等 V 7 7 11 3 2 特性光谱分类M2III B1eq 3 U B 色指数 0 49 4 B V 色指数 1 35 4 变星类型仙女座Z型變星 英语 Symbiotic binary 2 天体测定徑向速度 Rv 0 59 5 km s自行 m 赤经 1 577 0 111 1 mas yr 赤纬 3 031 0 134 1 mas yr视差 p 0 62 0 40 1 mas距离大约5000 ly 大约2000 pc 軌道繞行週期 P 7002759000000000000 759 0 1 9 6 days偏心率 e 0 0 6 倾斜角 i 7001470000000000000 47 12 7 半振幅 K1 primary 7000673000000000000 6 73 0 22 6 km s詳細資料紅巨星質量2 6 M 半徑85 3 R 亮度880 8 L 溫度3 400 3 K白矮星質量0 75 6 M 半徑0 17 0 36 9 R 亮度1 500 9 800 9 L 溫度90 000 150 000 9 K其他命名MWC 416 HIP 116287 SAO 53146 AG 48 2087 GCRV 14773 IRAS 23312 4832 HV 193 AN 41 1901 JP11 英语 JP11 3636 TYC 3645 2066 1 BD 48 4093 GSC 03645 02066 2MASS J23333994 4849059 AAVSO 2328 48 2E 2331 6 4834 HD 221650 PLX 5697 2E 4735 PPM 64386 參考資料庫SIMBAD资料资料来源 依巴谷星表 CCDM 2002 亮星星表 目录 1 聯星系統 2 共生變星 3 光譜 4 雙極噴流 5 參考資料 6 進階讀物 7 外部連結聯星系統 编辑仙女座Z是一對聯星 這兩顆星的迴圈軌道週期為759天 6 紅巨星的質量大約是太陽的兩倍 表面有效溫度僅2800K 但它的光度是太陽的880倍 白矮星在寧靜狀態的光度大約是太陽的1 000倍 但在活躍階段的光度會增加至10倍 它的溫度在寧靜狀態時是150 000K 在活躍時下降至低於100 000K 9 共生變星 编辑仙女座Z是共生變星的原型 它是激變變星的一種類型 共生變星有多種多樣的群 通常分為幾個子群 其中一群以仙女座Z命名 10 仙女座Z型變星 包括仙女座Z自身 顯示出不規則的變化 在間隔幾年爆發時 亮度會有數星等的改變 通常它們由一顆紅巨星和一顆白矮星星組成 以數年的周期在軌道上互繞著 紅巨星的恆星風會被白矮星電離 造成在軌道上不同的位置 星雲的輻射強度會稍有變化 這是在寧靜時的狀態 活躍時白矮星的體積增大 表面溫度下降 而變得更加明亮 整個聯星系統的亮度會增加2 4星等 8 光譜 编辑自20世紀初以來 仙女座Z的頻譜一直被認為極其奇特 在明亮階段的早期頻譜 只相對於紅色的連續譜呈現明亮的發射線 對此的解釋為恆星被嵌入密集的雲氣內 11 當恆星的度度減弱時 光譜失去了雲氣被激發的譜線 並且發展出吸收譜線 就展現出天鵝座P剖面的吸收線 這樣的光譜很容易確認是一顆像新興的高溫星與一顆低溫恆星的組合 12 在MK光譜分類 通常是一顆低溫的巨星 例如M4 5 3 確切的光譜類型被證明會改變 例如在1987年是M5 在1989年是M3 5 13 紅外線觀測的光譜類型是復合的M2III B1eq 此處的光度分類III表示是一顆正常的巨星 特殊代碼eq指示出有發射譜線與天鵝座P剖面型的譜線 3 雙極噴流 编辑2006年爆發之後 包括速度 1 150 公里 秒的微弱翼都有氫氣巴耳末發射線 準直的噴流則沿著系統的軸線發射 在2000年至2002年的長期爆發中 觀察到廣泛的無線電波 據認為 噴流只出現在明亮的爆發 14 參考資料 编辑 1 0 1 1 1 2 1 3 1 4 Gaia Collaboration Brown A G A Vallenari A Prusti T De Bruijne J H J Mignard F Drimmel R Babusiaux C Bailer Jones C A L Bastian U Biermann M Evans D W Eyer L Jansen F Jordi C Katz D Klioner S A Lammers U Lindegren L Luri X O Mullane W Panem C Pourbaix D Randich S Sartoretti P Siddiqui H I Soubiran C Valette V Van Leeuwen F et al Gaia Data Release 1 Summary of the astrometric photometric and survey properties Astronomy amp Astrophysics 2016 595 A2 Bibcode 2016A amp A 595A 2G arXiv 1609 04172 nbsp doi 10 1051 0004 6361 201629512 2 0 2 1 Samus N N Durlevich O V et al VizieR Online Data Catalog General Catalogue of Variable Stars Samus 2007 2013 VizieR On line Data Catalog B gcvs Originally published in 2009yCat 102025S 2009 1 Bibcode 2009yCat 102025S 3 0 3 1 3 2 3 3 3 4 Shenavrin V I Taranova O G Nadzhip A E Search for and study of hot circumstellar dust envelopes Astronomy Reports 2011 55 31 Bibcode 2011ARep 55 31S doi 10 1134 S1063772911010070 4 0 4 1 Martel M T Gravina R UBV Observations of Symbiotic Stars in July and October 1982 Information Bulletin on Variable Stars 1985 2750 1 Bibcode 1985IBVS 2750 1M Pourbaix D Tokovinin A A Batten A H Fekel F C Hartkopf W I Levato H Morrell N I Torres G Udry S SB9 The ninth catalogue of spectroscopic binary orbits Astronomy and Astrophysics 2004 424 2 727 Bibcode 2004A amp A 424 727P arXiv astro ph 0406573 nbsp doi 10 1051 0004 6361 20041213 6 0 6 1 6 2 6 3 6 4 6 5 Fekel Francis C Hinkle Kenneth H Joyce Richard R Skrutskie Michael F Infrared Spectroscopy of Symbiotic Stars II Orbits for Five S Type Systems with Two Year Periods The Astronomical Journal 2000 120 6 3255 Bibcode 2000AJ 120 3255F doi 10 1086 316872 Leibowitz Elia M Formiggini Liliana Activity cycle of the giant star of Z Andromedae and its spin period Mon Not R Astron Soc 2008 385 445 Bibcode 2008MNRAS 385 445L arXiv 0712 2120 nbsp doi 10 1111 j 1365 2966 2008 12847 x 8 0 8 1 Skopal A Discovery of the eclipse in the symbiotic binary Z Andromedae The Astrophysical Journal 2003 401 3 L17 Bibcode 2003A amp A 401L 17S arXiv astro ph 0304046 nbsp doi 10 1051 0004 6361 20030332 9 0 9 1 9 2 9 3 Sokoloski J L Kenyon S J Espey B R Keyes Charles D McCandliss S R Kong A K H Aufdenberg J P Filippenko A V Li W Brocksopp C Kaiser Christian R Charles P A Rupen M P Stone R P S A Combination Nova Outburst in Z Andromedae Nuclear Shell Burning Triggered by a Disk Instability The Astrophysical Journal 2006 636 2 1002 Bibcode 2006ApJ 636 1002S arXiv astro ph 0509638 nbsp doi 10 1086 498206 Z Andromedae star 2018 01 16 原始内容存档于2012 07 06 Plaskett J S The composite stellar and nebular spectrum of Z Andromedae Publications of the Dominion Astrophysical Observatory Victoria 1928 4 119 Bibcode 1928PDAO 4 119P Swings P Struve O The Evolution of a Peculiar Stellar Spectrum Z Andromedae Astrophysical Journal 1941 93 356 Bibcode 1941ApJ 93 356S doi 10 1086 144272 Murset U Schmid H M Spectral classification of the cool giants in symbiotic systems Astronomy and Astrophysics Supplement 1999 137 3 473 Bibcode 1999A amp AS 137 473M doi 10 1051 aas 1999105 Burmeister M Leedjarv L Evidence for bipolar jets from the optical spectra of the prototypical symbiotic star Z Andromedae The Astrophysical Journal 2006 461 L5 Bibcode 2007A amp A 461L 5B arXiv astro ph 0611475 nbsp doi 10 1051 0004 6361 20066630 進階讀物 编辑Tomov N A Tomova M T Taranova O G Broad band multicolour observations of the symbiotic binary Z And during quiescence and its activity at the end of 2002 The Astrophysical Journal 2004 428 3 985 Bibcode 2004A amp A 428 985T doi 10 1051 0004 6361 20041065 Taranova O G Tomov N A Tomova M T Shenavrin V I The symbiotic system Z Andromedae during the flare of 2000 2002 Astronomy Reports 2004 48 9 742 Bibcode 2004ARep 48 742T doi 10 1134 1 1800174 Ikeda Yuji Akitaya Hiroshi Matsuda Kentaro Homma Ken Ichi Seki Munezo Kawabata Koji S Hirata Ryuko Okazaki Akira Polarized Ha Wings in the Symbiotic Stars AG Draconis and Z Andromedae The Astrophysical Journal 2004 604 357 Bibcode 2004ApJ 604 357I doi 10 1086 381877 Tomov N A Taranova O G Tomova M T Mass ejection by the symbiotic binary Z And during its 2000 2002 outburst The Astrophysical Journal 2003 401 2 669 Bibcode 2003A amp A 401 669T doi 10 1051 0004 6361 20030140 Sokoloski J L Brocksopp C Kaiser C Seymour N A Radio Jet in the Prototypical Symbiotic Star Z Andromedae American Astron Soc Meeting 2002 201 17 12 Bibcode 2002AAS 201 1712S Bisikalo D V Boyarchuk A A Kilpio E Yu Kuznetsov O A Structure of gas flows in Z and in quiescence and during outbursts Astronomy Reports 2002 46 12 1022 Bibcode 2002ARep 46 1022B doi 10 1134 1 1529260 Gallego M C Garcia J A Vaquero J M Sanchez Bajo F A Strange Attractor on a Daily Timescale in the Visual Observations of Z And Acta Astron 1999 49 171 Bibcode 1999AcA 49 171G Sokoloski J L Bildsten Lars Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae The Astrophysical Journal 1999 517 2 919 Bibcode 1999ApJ 517 919S arXiv astro ph 9812294 nbsp doi 10 1086 307234 Birriel Jennifer J Espey Brian R Schulte Ladbeck Regina E Near simultaneous Observations of Direct and Raman scattered Linesin the Symbiotic Star Z Andromedae The Astrophysical Journal 1998 507 L75 Bibcode 1998ApJ 507L 75B doi 10 1086 311673 Schmid H M Schild H The polarimetric orbit of Z Andromedae Astronomy amp Astrophysics 1997 327 219 Bibcode 1997A amp A 327 219S Skopal A Vittone A A Errico L Otsuka M Tamura S Wolf M Elkin V G Structure of the hot object in the symbiotic prototype Z Andromedae during its 2000 03 active phase The Astrophysical Journal 2006 453 279 Bibcode 2006A amp A 453 279S arXiv astro ph 0603718 nbsp doi 10 1051 0004 6361 20052917 Skopal A Pribulla T The first detection of the bipolar jets from the symbiotic prototype Z and The Astronomer s Telegram 2006 882 Bibcode 2006ATel 882 1S Sokoloski J L Kenyon S J Espey B R Keyes Charles D McCandliss S R Kong A K H Aufdenberg J P Filippenko A V Li W Brocksopp C Kaiser Christian R Charles P A Rupen M P Stone R P S A Combination Nova Outburst in Z Andromedae Nuclear Shell Burning Triggered by a Disk Instability The Astrophysical Journal 2006 636 2 1002 Bibcode 2006ApJ 636 1002S arXiv astro ph 0509638 nbsp doi 10 1086 498206 Tomov N A Tomova M T Bisikalo D V Bipolar ejection by the symbiotic binary system Z and during its 2006 outburst Mon Not R Astron Soc 2007 376 L16 Bibcode 2007MNRAS 376L 16T arXiv astro ph 0612502 nbsp doi 10 1111 j 1745 3933 2007 00277 x Iudin B F Choice of a model for Z Andromedae Astronomicheskii Zhurnal 1986 63 137 Bibcode 1986AZh 63 137I 外部連結 编辑Image Z Andromedae AAVSO chart for Z Andromedae 页面存档备份 存于互联网档案馆 AAVSO long term light curve of Z And 失效連結 Z Andromedae The Prototype of the Symbiotic Class 页面存档备份 存于互联网档案馆 AAVSO 取自 https zh wikipedia org w index php title 仙女座Z amp oldid 77839914, 维基百科,wiki,书籍,书籍,图书馆,

文章

,阅读,下载,免费,免费下载,mp3,视频,mp4,3gp, jpg,jpeg,gif,png,图片,音乐,歌曲,电影,书籍,游戏,游戏。