Z Andromedae
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 23h 33m 39.951s[1] |
Declination | +48° 49′ 05.96″[1] |
Apparent magnitude (V) | 10.53 |
Characteristics | |
Spectral type | M2III + B1eq[2] |
B−V color index | 1.1 |
Variable type | symbiotic variable star |
Astrometry | |
Radial velocity (Rv) | 3 km/s |
Proper motion (μ) | RA: -6.23 ± 2.19[1] mas/yr Dec.: -4.86 ± 2.15 [1] mas/yr |
Parallax (π) | 1.12 ± 3.26[1] mas |
Absolute magnitude (MV) | 11.88 |
Details | |
Other designations | |
Database references | |
SIMBAD | data |
Data sources: | |
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
Z Andromedae is a symbiotic variable star with an hourglass-shaped nebula (like the Homonculus Nebula or Supernova 1987A).[3] It is the prototype for symbiotic variables, which are a subset of cataclysmic variables.[4]
References
- 1 2 3 4 5 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- ↑ . Bibcode:2011ARep...55...31S. doi:10.1134/S1063772911010070. Missing or empty
|title=
(help) - ↑ AAVSO: Z And, October 2000 Variable Star Of The Month
- ↑ Z Andromedae star
Additional reading
- TOMOV N.A.; TOMOVA M.T.; TARANOVA O.G. (2004). "Broad-band multicolour observations of the symbiotic binary Z And during quiescence and its activity at the end of 2002.". The Astrophysical Journal. 428: 985–992. Bibcode:2004A&A...428..985T. doi:10.1051/0004-6361:20041065.
- TARANOVA O.G.; TOMOV N.A.; TOMOVA M.T.; SHENAVRIN V.I (2004). "The symbiotic system Z Andromedae during the flare of 2000-2002.". Astronomy Reports. 48 (9): 742–750. Bibcode:2004ARep...48..742T. doi:10.1134/1.1800174.
- IKEDA Y.; AKITAYA H.; MATSUDA K.; HOMMA K.; et al. (2004). "Polarized Hα wings in the symbiotic stars AG Draconis and Z Andromedae". The Astrophysical Journal. 604: 357–361. Bibcode:2004ApJ...604..357I. doi:10.1086/381877.
- TOMOV N.A.; TARANOVA O.G.; TOMOVA M.T. (2003). "Mass ejection by the symbiotic binary Z And during its 2000-2002 outburst". The Astrophysical Journal. 401: 669–676. Bibcode:2003A&A...401..669T. doi:10.1051/0004-6361:20030140.
- SKOPAL A. (2003). "Discovery of the eclipse in the symbiotic binary Z Andromedae". The Astrophysical Journal. 401: L17–L20. arXiv:astro-ph/0304046. Bibcode:2003A&A...401L..17S. doi:10.1051/0004-6361:20030332.
- SOKOLOSKI J.L.; BROCKSOPP C.; KAISER C.; SEYMOUR N. (2002). "A radio "Jet" in the prototypical symbiotic star Z Andromedae?". American Astron. Soc. Meeting. 201: #17.12. Bibcode:2002AAS...201.1712S.
- BISIKALO D.V.; BOYARCHUK A.A.; KILPIO E.Y.; KUZNETSOV O.A. (2002). "Structure of gas flows in Z And in quiescence and during outbursts". Astronomy Reports. 46 (12): 1022–1029. Bibcode:2002ARep...46.1022B. doi:10.1134/1.1529260.
- GALLEGO M.C.; GARCIA J.A.; VAQUERO J.M.; SANCHEZ-BAJO F. (1999). "A strange attractor on a daily timescale in the visual observations of Z And ?". Acta Astron. 49: 171–180. Bibcode:1999AcA....49..171G.
- SOKOLOSKI J.L.; BILDSTEN L. (1999). "Discovery of a magnetic white dwarf in the symbiotic binary Z Andromedae". The Astrophysical Journal. 517 (2): 919–924. arXiv:astro-ph/9812294. Bibcode:1999ApJ...517..919S. doi:10.1086/307234.
- BIRRIEL J.J.; ESPEY B.R.; SCHULTE-LADBECK R.E. (1998). "Near-simultaneous observations of direct and raman-scattered lines in the symbiotic star Z Andromedae". The Astrophysical Journal. 507: L75–L78. Bibcode:1998ApJ...507L..75B. doi:10.1086/311673.
- SCHMID H.M.; SCHILD H. (1997). "The polarimetric orbit of Z Andromedae". Astronomy & Astrophysics. 327: 219–223. Bibcode:1997A&A...327..219S.
- SKOPAL A.; VITTONE A.A.; ERRICO L.; OTSUKA M.; et al. (2006). "Structure of the hot object in the symbiotic prototype Z Andromedae during its 2000-03 active phase". The Astrophysical Journal. 453: 279–293. arXiv:astro-ph/0603718. Bibcode:2006A&A...453..279S. doi:10.1051/0004-6361:20052917.
- SKOPAL A.; PRIBULLA T. (2006). "The first detection of the bipolar jets from the symbiotic prototype Z And". The Astronomer's Telegram. 882: 1. Bibcode:2006ATel..882....1S.
- SOKOLOSKI J.L.; KENYON S.J.; ESPEY B.R.; KEYES C.D.; et al. (2006). "A ``Combination nova outburst in Z Andromedae: nuclear shell burning triggered by a disk instability". The Astrophysical Journal. 636 (2): 1002–1019. arXiv:astro-ph/0509638. Bibcode:2006ApJ...636.1002S. doi:10.1086/498206.
- LEIBOWITZ E.M.; FORMIGGINI L. (2008). "Activity cycle of the giant star of Z Andromedae and its spin period". Mon. Not. R. Astron. Soc. 385: 445–452. arXiv:0712.2120. Bibcode:2008MNRAS.385..445L. doi:10.1111/j.1365-2966.2008.12847.x.
- BURMEISTER M.; LEEDJAERV L. (2007). "Evidence for bipolar jets from the optical spectra of the prototypical symbiotic star Z Andromedae". The Astrophysical Journal. 461: L5–L8. arXiv:astro-ph/0611475. Bibcode:2007A&A...461L...5B. doi:10.1051/0004-6361:20066630.
- TOMOV N.A.; TOMOVA M.T.; BISIKALO D.V. (2007). "Bipolar ejection by the symbiotic binary system Z And during its 2006 outburst". Mon. Not. R. Astron. Soc. 376: L16–L19. arXiv:astro-ph/0612502. Bibcode:2007MNRAS.376L..16T. doi:10.1111/j.1745-3933.2007.00277.x.
- Iudin, B. F. (1986). "Choice of a model for Z Andromedae". Astronomicheskii Zhurnal. 30: 84–92. Bibcode:1986AZh....63..137I.
External links
- Image Z Andromedae
- Chart Z Andromedae
- Chart Z Andromedae
- view the long-term light curve of Z And
- www.aavso.org/
- HIC 116287
- A model for symbiotic star Z Andromedae
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