Wikipedia

List of star-forming regions in the Local Group

This is a list of star-forming regions located in the Milky Way Galaxy and in the Local Group. Star formation occurs in molecular clouds which become unstable to gravitational collapse, and these complexes may contain clusters of young stars and regions of ionized gas called H II regions. Stars typically form in groups of many stars, rather than in isolation.[1]

Composite image showing young stars in and around molecular cloud Cepheus B.

Galactic star-forming regions edit

Name RA [deg] Dec [deg] l [deg] b [deg] Distance [pc] Age [Myr] Earliest SpTy Number of Stars Cloud Mass [Mo]
Corona Australis Molecular Cloud 287.368 -37.904 130
Rho Oph 247.025 -24.541 353.22 16.53 131
Taurus Molecular Cloud 070.25 +25.87 174.13 -13.45 140
Orion Nebula 83.8221 -5.3911 209.013 -19.382 415
W40 277.871 -2.090 28.791 +3.481 500 [2] 0.8 [3] late-O [2] 520 [4][5]
RCW 36 134.7537 -43.0 265.0794 +1.4048 700
Vela Molecular Ridge 134.7537 -43.0 265.0794 +1.4048 700-1000
Cygnus X 307.5 41.0 1400
NGC 6334 260.212 -36.115 351.42 +0.64 1700
NGC 6357 261.62 -34.20 353.11 +0.65 1700
Eagle Nebula 274.700 -13.807 16.95 +0.793 1750
M17 275.196 -16.172 15.06 -0.69 2000
Carina Nebula 161.285 -59.868 2600
AFGL 2591 307.354 40.189 078.887 +0.709 3300 [6] O9–O6 [7]
W43 281.885 -01.942 30.759 -0.019 6000
W49 287.582 +9.128 43.200 +0.000 11000[8] O2-3.5If*[9]
Radcliffe wave[10]

Extragalactic star-forming regions edit

Name RA [deg] Dec [deg] l [deg] b [deg] Distance [pc] Age [Myr] Earliest SpTy Number of Stars Cloud Mass [Mo]
30 Doradus 84.67665 -69.10093 279.4652 -31.6719 49,000

See also edit

References edit

  1. ^ Lada, C. J.; Lada, E. A. (2003). "Embedded Clusters in Molecular Clouds". Annual Review of Astronomy & Astrophysics. 41: 57–115. arXiv:astro-ph/0301540. Bibcode:2003ARA&A..41...57L. doi:10.1146/annurev.astro.41.011802.094844. S2CID 16752089.
  2. ^ a b Shuping, R. Y.; et al. (2012). "Spectral Classification of the Brightest Objects in the Galactic Star-forming Region W40". Astronomical Journal. 144 (4): 116. arXiv:1208.4648. Bibcode:2012AJ....144..116S. doi:10.1088/0004-6256/144/4/116. S2CID 119227485.
  3. ^ Getman, K. V.; et al. (2014). "Age Gradients in the Stellar Populations of Massive Star Forming Regions Based on a New Stellar Chronometer". Astrophysical Journal. 787 (2): 108. arXiv:1403.2741. Bibcode:2014ApJ...787..108G. doi:10.1088/0004-637X/787/2/108. S2CID 118626928.
  4. ^ Kuhn, M. A.; et al. (2010). "A Chandra Observation of the Obscured Star-forming Complex W40". Astrophysical Journal. 725 (2): 2485–2506. arXiv:1010.5434. Bibcode:2010ApJ...725.2485K. doi:10.1088/0004-637X/725/2/2485. S2CID 119192761.
  5. ^ Kuhn, M. A.; Getman, K. V.; Feigelson, E. D. (2015). "The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations". Astrophysical Journal. 802 (1): 60. arXiv:1501.05300. Bibcode:2015ApJ...802...60K. doi:10.1088/0004-637X/802/1/60. S2CID 119309858.
  6. ^ Johnston, K. G.; Shepherd, D. S.; Robitaille, T. P.; Wood, K. (2013). "The standard model of low-mass star formation applied to massive stars: a multi-wavelength picture of AFGL 2591". Astronomy & Astrophysics. 551: A43, 1–23. arXiv:1212.1719. Bibcode:2013A&A...551A..43J. doi:10.1051/0004-6361/201219657. S2CID 54972885.
  7. ^ Sanna, A.; Reid, M. J.; Carrasco-González, C.; et al. (2012). "Clustered star formation and outflows in AFGL 2591". The Astrophysical Journal. 745 (2): 191–200. arXiv:1111.0843. Bibcode:2012ApJ...745..191S. doi:10.1088/0004-637X/745/2/191. S2CID 118465380.
  8. ^ Zhang, B.; et al. (2013). "Parallaxes for W49N and G048.60+0.02: Distant Star Forming Regions in the Perseus Spiral Arm". Astrophysical Journal. 775 (1): 79. arXiv:1312.3856. Bibcode:2013ApJ...775...79Z. doi:10.1088/0004-637X/775/1/79. S2CID 119257313.
  9. ^ Wu, S.-W.; et al. (2014). "The discovery of a very massive star in W49". Astronomy & Astrophysics. 568: L13. arXiv:1407.4804. Bibcode:2014A&A...568L..13W. doi:10.1051/0004-6361/201424154. S2CID 55277847.
  10. ^ Sample, Ian (7 January 2020). "Astronomers discover huge gaseous wave holding Milky Way's newest stars". The Guardian. ISSN 0261-3077. Retrieved 2020-01-07 – via www.theguardian.com.

External links edit

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