Lambda Leporis
Star in the constellation Lepus
Lambda Leporis , which is the Latinized form of λ Leporis , is a solitary,[ 7] blue-white hued star in the southern constellation of Lepus . It is visible to the naked eye with an apparent visual magnitude of +4.29.[ 2] Based upon an annual parallax shift of 3.83 mas ,[ 1] it is estimated to lie roughly 850 light years from the Sun . Relative to its neighbors, this star has a peculiar velocity of 16.3± 2.8 km/s .[ 3] It is a member of the Orion OB1 association (Ori OB1),[ 8] and it has been identified as a high-velocity runaway star .[ 9]
This is a massive, B-type main-sequence star with a corrected stellar classification of B0.5 V. It is an estimated eight[ 5] million years old and is spinning with a projected rotational velocity of 30 km/s.[ 2] This star has around 15 times the mass of the Sun and 4.5 times the Sun's radius . It is radiating 15,488 times the Sun's luminosity from its photosphere at an effective temperature of 30,400 K.[ 2]
References
^ a b c d e f 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 , S2CID 18759600 .
^ a b c d e f g h i j k Nieva, M.-F. (February 2013), "Temperature, gravity, and bolometric correction scales for non-supergiant OB stars", Astronomy & Astrophysics , 550 : A26, arXiv :1212.0928 , Bibcode :2013A&A...550A..26N , doi :10.1051/0004-6361/201219677 , S2CID 119275940 .
^ a b Bobylev, V. V.; Bajkova, A. T. (August 2013), "Galactic kinematics from a sample of young massive stars", Astronomy Letters , 39 (8): 532–549, arXiv :1307.1677 , Bibcode :2013AstL...39..532B , doi :10.1134/S106377371308001X , S2CID 118568203 .
^ a b c d Nieva, M.-F.; Przybilla, N. (June 2014), "Fundamental properties of nearby single early B-type stars", Astronomy & Astrophysics , 566 : A7, arXiv :1412.1418 , Bibcode :2014A&A...566A...7N , doi :10.1051/0004-6361/201423373 .
^ a b Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society , 410 (1): 190–200, arXiv :1007.4883 , Bibcode :2011MNRAS.410..190T , doi :10.1111/j.1365-2966.2010.17434.x , S2CID 118629873 .
^ "lam Lep" . SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2017-08-16 .{{cite web }}
: CS1 maint: postscript (link )
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869–879, arXiv :0806.2878 , Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x , S2CID 14878976 .
^ Alexeeva, Sofya; et al. (June 2020), "Neon Abundances of B Stars in the Solar Neighborhood", The Astrophysical Journal , 896 (1): 59, arXiv :2005.11027 , Bibcode :2020ApJ...896...59A , doi :10.3847/1538-4357/ab9306 , S2CID 218862999 , 59.
^ Proffitt, Charles R.; Quigley, Mark F. (February 2001), "Boron Abundances in Early B Stars: Results from the B III Resonance Line in IUE Data", The Astrophysical Journal , 548 (1): 429–438, Bibcode :2001ApJ...548..429P , doi :10.1086/318673 .