Trumpler 14

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Trumpler 14
Trumpler 14 by Hubble.jpg
HST ACS visible and infrared image
Observation data (J2000 epoch)
Constellation Carina
Right ascension 10h 43m 56s[1]
Declination −59° 33′ 00″[1]
Distance 8,980 ly (2,753 pc)[1]
Apparent magnitude (V) 5.5[1]
Physical characteristics
Mass 4.3+3.3
−1.5
×103
 M
Estimated age 300000500000 years
Notable features One of the youngest known star clusters
Other designations C 1041-593, Cl VDBH 102, [DBS2003] 54, [KPR2004b] 263, [KPS2012] MWSC 1846[1]
See also: Open cluster, List of open clusters

Trumpler 14 (Tr 14) is an open cluster with a diameter of six light-years (1.8 pc), located within the inner regions of the Carina Nebula, approximately 8,980 light-years (2,753 pc) from Earth.[1][2] Together with the nearby Trumpler 16, 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 massive or as large as Trumpler 16.[3]

About 2000 stars have been identified in Trumpler 14.[4] and the total mass of the cluster is estimated to be 4,300 M.[5]

Age[edit]

It is one of the youngest known star clusters, estimates range from 300 to 500 thousand years old.[5] For comparison, the massive super star cluster R136 is about 1 to 2 million years old,[6] and the famous Pleiades is about 115 million years old.[7]

Members[edit]

Due to its location within the inner parts of the Carina Nebula, Trumpler 14 is currently undergoing massive star formation. As a result, the star cluster exhibits many stars of late O to early A spectral type, which are very massive (at least 10 solar masses), short-lived and hot (20000 K). The brightest member is HD 93129, a triple system consisting of three individual class O stars.[8] It also contains HD 93128, an O3.5 V((fc))z star, an extremely hot and young main sequence star.[9]

Future[edit]

In a few million years, as its stars die, it will trigger the formation of metal-rich stars, and in a few hundred million years Trumpler 14 will probably dissipate.[10]

Gallery[edit]

References[edit]

  1. ^ a b c d e f "Trumpler 14". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2 December 2016. 
  2. ^ W.S. Dias; B.S. Alessi; A. Moitinho & J.R.D. Lépine (2002). "New catalogue of optically visible open clusters and candidates". Astronomy & Astrophysics. 389 (3): 871–873. Bibcode:2002A&A...389..871D. arXiv:astro-ph/0203351Freely accessible. doi:10.1051/0004-6361:20020668. 
  3. ^ Davidson, Kris; Humphreys, Roberta M., eds. (23 January 2012). Eta Carinae and the Supernova Impostors. Astrophysics and Space Science Library, Volume 384. Springer Science+Business Media. Bibcode:2012ASSL..384.....D. ISBN 978-1-4614-2274-7. doi:10.1007/978-1-4614-2275-4. 
  4. ^ "Young star cluster Trumpler 14 revealed in stunning image". ScienceDaily. 2009-12-04. Archived from the original on 31 August 2014. Retrieved 2014-10-07. 
  5. ^ a b H. Sana; Y. Momany; M. Gieles; G. Carraro; et al. (2010). "A MAD view of Trumpler 14". Astronomy & Astrophysics. 515: A26. Bibcode:2010A&A...515A..26S. arXiv:1003.2208Freely accessible. doi:10.1051/0004-6361/200913688. 
  6. ^ Crowther, Schnurr; Hirschi, Yusof; Parker, Goodwin; Kassim (2010). "The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 M⊙ stellar mass limit". Monthly Notices of the Royal Astronomical Society. 408 (2): 731. Bibcode:2010MNRAS.408..731C. arXiv:1007.3284Freely accessible. doi:10.1111/j.1365-2966.2010.17167.x. 
  7. ^ Basri G.; Marcy G. W.; Graham J. R. (1996). "Lithium in Brown Dwarf Candidates: The Mass and Age of the Faintest Pleiades Stars". Astrophysical Journal. 458: 600. Bibcode:1996ApJ...458..600B. doi:10.1086/176842. 
  8. ^ Kaler, James D. (2002). The Hundred Greatest Stars. Copernicus Books. p. 50. ISBN 0-387-95436-8. Retrieved 2014-10-01 – via Google Books. 
  9. ^ Smith, Nathan (2006). "A census of the Carina Nebula - I. Cumulative energy input from massive stars". Monthly Notices of the Royal Astronomical Society. 367 (2): 763. Bibcode:2006MNRAS.367..763S. doi:10.1111/j.1365-2966.2006.10007.x. 
  10. ^ de La Fuente (1998). "Dynamical Evolution of Open Star Clusters". Publications of the Astronomical Society of the Pacific. 110 (751): 1117–1117. Bibcode:1998PASP..110.1117D. doi:10.1086/316220. 

External links[edit]

Media related to Trumpler 14 at Wikimedia Commons

Coordinates: Sky map 10h 43m 56s, −59° 33′ 00″