IRAS 20050+2720: Anatomy of a young stellar cluster

H.M. Günther, S.J. Wolk, B. Spitzbart, J. Forbrich, N.J. Wright, T.L. Bourke, R.A. Gutermuth, L. Allen, S.T. Megeath, J.L. Pipher

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IRAS 20050+2720 is young star-forming region at a distance of 700 pc without apparent high-mass stars. We present results of our multi-wavelength study of IRAS 20050+2720 which includes observations by Chandra and Spitzer, and Two Micron All Sky Survey and UBVRI photometry. In total, about 300 young stellar objects (YSOs) in different evolutionary stages are found. We characterize the distribution of YSOs in this region using a minimum spanning tree analysis. We newly identify a second cluster core, which consists mostly of class II objects, about 10' from the center of the cloud. YSOs of earlier evolutionary stages are more clustered than more evolved objects. The X-ray luminosity function (XLF) of IRAS 20050+2720 is roughly lognormal, but steeper than the XLF of the more massive Orion Nebula complex. IRAS 20050+2720 shows a lower N H/AK ratio compared with the diffuse interstellar medium
Original languageEnglish
Article number101
JournalThe Astronomical Journal
Issue number4
Publication statusPublished - 1 Oct 2012


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