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Labelled map of Carina OB1Chandra image of Carina OB1
Carina OB1 is a giant OB association in the Carina Nebula,[1] which is home to some of the most massive and luminous stars in the Milky Way Galaxy. It includes the young star clusters Collinder 228, NGC 3293, NGC 3324, IC 2581, Trumpler 14, Trumpler 15 and Trumpler 16,[2] the last being the home of Eta Carinae. It also includes another massive and luminous star, HD 93129A. It is approximately 2,680 parsecs (8,700 ly) from Earth.[3]
It is one of the largest known stellar associations, along with Sagittarius OB5 and Cygnus OB2. It is much easier to see than that of the other associations since Carina OB1 has relatively little dust extinction in its region. Together with Carina OB2, they compromise the most massive stellar grouping known in the galaxy.
Carina OB1 is about 70 light-years (21 pc) across, and is the most massive stellar association in the Milky Way Galaxy since it lies within an active emission nebula. It contains many hot luminous stars which share common characteristics.
^Svend Laustsen; Claus Madsen; Richard M. West (2012). Exploring the Southern Sky: A Pictorial Atlas from the European Southern Observatory (ESO). Springer Science & Business Media. p. 147. ISBN 9783642615887.
^Turner, D. G.; Grieve, G. R.; Herbst, W.; Harris, W. E. (1980). "The young open cluster NGC 3293 and its relation to CAR OB1 and the Carina Nebula complex". Astronomical Journal. 85: 1193–1206. Bibcode:1980AJ.....85.1193T. doi:10.1086/112783.
^Parker, Richard J.; Crowther, Paul A.; Rate, Gemma (2020). "Unlocking Galactic Wolf–Rayet stars with Gaia DR2 – II. Cluster and association membership". Monthly Notices of the Royal Astronomical Society. 495 (1): 1209–1226. arXiv:2005.02533. Bibcode:2020MNRAS.495.1209R. doi:10.1093/mnras/staa1290. S2CID 218516882.
CarinaOB1 is a giant OB association in the Carina Nebula, which is home to some of the most massive and luminous stars in the Milky Way Galaxy. It includes...
the large CarinaOB1 association and several related open clusters, including numerous O-type stars and several Wolf–Rayet stars. CarinaOB1 encompasses...
prominent star clusters in CarinaOB1, a giant stellar association in the Carina spiral arm. Another cluster within CarinaOB1, Collinder 228, is thought...
association in Vela Molecular Ridge. IC 4996 is an open cluster in Cygnus OB1. Derived from model temperatures and radii (30,000 K, 2 AU, 15,000 K, 11...
they are the main clusters of the Carina OB1 stellar association, which is the largest association in the Carina Nebula, although Trumpler 14 is not as...
member of the Trumpler 14 star cluster, a young star cluster within the CarinaOB1 stellar association that harbors other super-luminous stars, like Eta...
and its neighbour Trumpler 14 are the two dominant star clusters of the CarinaOB1 association, an extended grouping of young luminous stars with a common...
young moving groups Recent additions to nearby moving groups are the Volans-Carina Association (VCA), discovered with Gaia, and the Argus Association (ARG)...
variable star in the constellation Carina, the keel of Argo Navis. It is a member of the star association CarinaOB1-D, at a distance of around 2,300 parsecs...
association in Vela Molecular Ridge. IC 4996 is an open cluster in Cygnus OB1. Black holes are the end point of the evolution of massive stars. Technically...
Perseus OB1 is an OB association in the Northern Celestial Hemisphere in the constellation Perseus. It is centered around the double cluster (NGC 869...
spectral type M2Iab in the constellation Carina. It is a member of the CarinaOB1 association along the Carina Nebula. IX Carinae is a semiregular variable...
25 lies at the western limit of the Trumpler 16 star cluster, part of CarinaOB1, one of the largest stellar associations in the Milky Way Galaxy. Because...
Brown, J. C. (2008). "XMM-Newton X-ray study of early type stars in the CarinaOB1 association". Astronomy and Astrophysics. 477 (2): 593. arXiv:0711.3612...
is not associated with that nebulosity. It forms part of the Sagittarius OB1 association. This cluster is located 1,205 pc away from Earth with an extinction...
(6500 light years) away, and is physically connected to the extended Vela OB1 association. Part of the gas in the clouds is ionized by the ultraviolet...
characteristic variability. Brightest star of the OB association Scorpius OB1 and a LBV candidate. May just be a closer post-AGB star. de Jager, C. (1998)...
Svet. "SPITZER OBSERVATIONS OF THE YOUNG STELLAR CLUSTER NGC6193 IN THE ARA OB1 ASSOCIATION" (PDF). Stephen L. Skinner: CASA, U. of Colorado. Retrieved 2019-12-12...
Palmer, J.; Cleeves, L.I. (2012). "Irradiated interfaces in the Ara OB1, Carina, Eagle Nebula, and Cyg OB2 massive star formation regions". High Energy...
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