HD 29573
Binary star system in the constellation Eridanus
HD 29573 is a binary star [3] system in the constellation Eridanus . It has a combined apparent visual magnitude of 4.99,[2] making it visible to the naked eye. Based upon an annual parallax shift of 14.23 mas ,[1] it is located 229 light years from the Sun . The system is moving further away from Earth with a heliocentric radial velocity of +3 km/s.[5]
The binary nature of this system was discovered through observations made with the Hipparcos spacecraft. The pair orbit each other with a period of 41 years and an eccentricity of 0.8.[2] The magnitude 5.19[3] primary component has a class of A1,[2] 2.28[2] times the mass of the Sun , and is a suspected chemically peculiar star .[8] The secondary has magnitude 7.22,[3] 1.56[2] times the Sun's mass, and a class of F2.[2] The system has a possible infrared excess [9] due to circumstellar dust.[10]
References
^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties" . Astronomy and Astrophysics . 674 : A1. arXiv :2208.00211 . Bibcode :2023A&A...674A...1G . doi :10.1051/0004-6361/202243940 . S2CID 244398875 .
Gaia DR3 record for this source at VizieR .
^ a b c d e f g h i j k Cvetković, Z.; et al. (March 2014), "Orbits for Eight Hipparcos Double Stars", The Astronomical Journal , 147 (3): 9, Bibcode :2014AJ....147...62C , doi :10.1088/0004-6256/147/3/62 , S2CID 121138730 , 62.
^ a b c d Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869, arXiv :0806.2878 , Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x , S2CID 14878976 .
^ a b 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 de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics , 546 : 14, arXiv :1208.3048 , Bibcode :2012A&A...546A..61D , doi :10.1051/0004-6361/201219219 , S2CID 59451347 , A61.
^ a b c Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics , 537 : A120, arXiv :1201.2052 , Bibcode :2012A&A...537A.120Z , doi :10.1051/0004-6361/201117691 , S2CID 55586789 .
^ "HD 29573" . SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2018-07-23 .
^ Renson, P.; Manfroid, J. (May 2009), "Catalogue of Ap, HgMn and Am stars", Astronomy and Astrophysics , 498 (3): 961–966, Bibcode :2009A&A...498..961R , doi :10.1051/0004-6361/200810788 .
^ Shylaja, B. S.; Ashok, N. M. (June 2002), "IR observations of Am stars", Bulletin of the Astronomical Society of India , 30 : 491–500, Bibcode :2002BASI...30..491S .
^ Kamp, I.; et al. (June 2002), "Do dusty A stars exhibit accretion signatures in their photospheres?", Astronomy and Astrophysics , 388 (3): 978–984, arXiv :astro-ph/0204449 , Bibcode :2002A&A...388..978K , doi :10.1051/0004-6361:20020493 , S2CID 18191361 .