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Star in the constellation Corvus
Zeta Corvi ,
Latinised from ζ Corvi, is a
star in the
constellation
Corvus . It is a
blue-white main-sequence star of
apparent magnitude 5.21. Around 420
light-years distant, it shines with a
luminosity approximately 154 times
that of the Sun and has a surface temperature of K
[8] It is a
Be star , the presence of hydrogen
emission lines in its spectrum indicating it has a circumstellar disk. It is separated by 7
arcminutes from the star
HR 4691 . The two may be an optical double or a true multiple
star system , with a separation of at least 50,000
astronomical units and the stars taking 3.5 million years to orbit each other. HR 4691 is itself double, composed of an ageing yellow-orange giant whose
spectral type has been calculated at K0 or G3, and an
F-type main-sequence star .
[9]
References
^
a b c d e van Leeuwen, F.; et al. (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 .
S2CID
18759600 . ^
a b
"zet+Crv" .
SIMBAD .
Centre de données astronomiques de Strasbourg .
^ Strom, Stephen E.; Wolff, Sidney C.; Dror, David H. A. (2005). "B Star Rotational Velocities in h and χ Persei: A Probe of Initial Conditions during the Star Formation Epoch?". The Astronomical Journal . 129 (2): 809–828.
arXiv :
astro-ph/0410337 .
Bibcode :
2005AJ....129..809S .
doi :
10.1086/426748 .
S2CID
15059129 . ^
a b Mermilliod, J.-C. (1986).
"Compilation of Eggen's UBV data, transformed to UBV (unpublished)" . Catalogue of Eggen's UBV Data., 0 (1986) : 0.
Bibcode :
1986EgUBV........0M .
^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters , 38 (5): 331,
arXiv :
1108.4971 ,
Bibcode :
2012AstL...38..331A ,
doi :
10.1134/S1063773712050015 ,
S2CID
119257644 . ^
a b c d Zorec, J.; Royer, F.; Dror, David (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics . 537 : A120.
arXiv :
1201.2052 .
Bibcode :
2012A&A...537A.120Z .
doi :
10.1051/0004-6361/201117691 .
S2CID
55586789 . ^
a b Arcos, C.; Kanaan, S.; Chávez, J.; Vanzi, L.; Araya, I.; Curé, M. (2018). "Stellar parameters and H α line profile variability of be stars in the BeSOS survey". Monthly Notices of the Royal Astronomical Society . 474 (4): 5287.
arXiv :
1711.08675 .
Bibcode :
2018MNRAS.474.5287A .
doi :
10.1093/mnras/stx3075 .
^ McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society . 427 (1): 343–57.
arXiv :
1208.2037 .
Bibcode :
2012MNRAS.427..343M .
doi :
10.1111/j.1365-2966.2012.21873.x .
S2CID
118665352 .
^ Kaler, James B. (Jim) (26 April 2013),
"Zeta Corvi" , Stars , University of Illinois, retrieved 18 March 2015
