A chandra acis study of the young star cluster trumpler 15 in carina and correlation with near-infrared sources
Junfeng Wang,Eric D. Feigelson,Leisa K. Townsley,Patrick S. Broos,Konstantin V. Getman,Scott J. Wolk,Thomas Preibisch,Keivan G. Stassun,Keivan G. Stassun,Anthony F. J. Moffat,Gordon P. Garmire,Robert R. King,Mark J. McCaughrean,Mark J. McCaughrean,Hans Zinnecker +14 more
TLDR
Using the highest-resolution near-IR observation of the Trumpler 15 star cluster taken by the Chandra X-ray Observatory, the authors in this article estimate the total size of its stellar population by comparing the x-ray luminosity function (XLF) of the detected sources to a calibrator cluster and identify for the first time a significant fraction of its individual members.Abstract:
Using the highest-resolution X-ray observation of the Trumpler 15 star cluster taken by the Chandra X-ray Observatory, we estimate the total size of its stellar population by comparing the X-ray luminosity function (XLF) of the detected sources to a calibrator cluster and identify for the first time a significant fraction (~14%) of its individual members. The highest-resolution near-IR observation of Trumpler 15 (taken by the HAWK-I instrument on the Very Large Telescope) was found to detect most of our X-ray selected sample of cluster members, with a K-excess disk frequency of 3.8% ± 0.7%. The near-IR data, XLF, and published spectral types of the brightest members support a cluster age estimate (5-10 Myr) that is older than those for the nearby Trumpler 14 and Trumpler 16 clusters, and suggest that high-mass members may have already exploded as supernovae. The morphology of the inner ~0.7 pc core of the cluster is found to be spherical. However, the outer regions (beyond ~2 pc) are elongated, forming an "envelope" of stars that, in projection, appears to connect Trumpler 15 to Trumpler 14; this morphology supports the view that these clusters are physically associated. Clear evidence of mass segregation is seen. This study appears in this special issue devoted to the Chandra Carina Complex Project, a 1.42 deg2 Chandra X-ray survey of the Great Nebula in Carina.read more
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Journal ArticleDOI
Innovations in the analysis of chandra-acis observations
Patrick S. Broos,Leisa K. Townsley,Eric D. Feigelson,Konstantin V. Getman,Franz E. Bauer,Franz E. Bauer,Gordon P. Garmire +6 more
TL;DR: In this article, the authors describe the data analysis work performed by the Advanced CCD Imaging Spectrometer (ACIS) on NASA's Chandra X-ray Observatory and as Chandra General Observers.
Journal ArticleDOI
An Introduction To The Chandra Carina Complex Project
Leisa K. Townsley,Patrick S. Broos,Michael F. Corcoran,Michael F. Corcoran,Eric D. Feigelson,Marc Gagné,Thierry Montmerle,M. S. Oey,Nathan Smith,Gordon P. Garmire,Konstantin V. Getman,Matthew S. Povich,Nancy Remage Evans,Yaël Nazé,E. R. Parkin,E. R. Parkin,Thomas Preibisch,Junfeng Wang,Scott J. Wolk,You-Hua Chu,David H. Cohen,Robert A. Gruendl,Kenji Hamaguchi,Kenji Hamaguchi,Robert R. King,Mordecai-Mark Mac Low,Mark J. McCaughrean,Mark J. McCaughrean,Anthony F. J. Moffat,Lidia M. Oskinova,Julian M. Pittard,Keivan G. Stassun,Keivan G. Stassun,Asif ud-Doula,Nolan R. Walborn,Wayne L. Waldron,Ed Churchwell,Joy S. Nichols,Stanley P. Owocki,Norbert S. Schulz +39 more
TL;DR: In this paper, the authors have mapped the Carina star-forming complex in X-rays, using archival Chandra data and a mosaic of 20 new 60 ks pointings using the Chandra X-ray Observatory's Advanced CCD Imaging Spectrometer.
Journal ArticleDOI
Overview of the Massive Young Star-Forming Complex Study in Infrared and X-ray (MYStIX) Project
Eric D. Feigelson,Leisa K. Townsley,Patrick S. Broos,Heather A. Busk,Konstantin V. Getman,Robert R. King,Michael A. Kuhn,Tim Naylor,Matthew S. Povich,Matthew S. Povich,Adrian Baddeley,Adrian Baddeley,Matthew R. Bate,Remy Indebetouw,Kevin Luhman,Mark J. McCaughrean,Julian M. Pittard,Ralph E. Pudritz,Alison Sills,Yong Song,James Wadsley +20 more
TL;DR: The Massive Young Star-Forming Complex Study in Infrared and X-ray (mystix) as discussed by the authors has been used to construct catalogs of star-forming complex stellar members with well-defined criteria and maps of nebular gas and dust.
Journal ArticleDOI
The Spatial Structure of Young Stellar Clusters. I. Subclusters
Michael A. Kuhn,Eric D. Feigelson,Konstantin V. Getman,Adrian Baddeley,Patrick S. Broos,Alison Sills,Matthew R. Bate,Matthew S. Povich,Kevin Luhman,Heather A. Busk,Tim Naylor,Robert R. King +11 more
TL;DR: In this article, the authors identify subclusters of young stars using finite mixture models, which are collections of isothermal ellipsoids that model individual sub-clusters.
Journal ArticleDOI
A Pan-Carina YSO Catalog: Intermediate-Mass Young Stellar Objects in the Carina Nebula Identified Via Mid-Infrared Excess Emission
Matthew S. Povich,Nathan Smith,Steven R. Majewski,Konstantin V. Getman,Leisa K. Townsley,Brian Babler,Patrick S. Broos,Remy Indebetouw,Marilyn R. Meade,Thomas P. Robitaille,Keivan G. Stassun,Barbara A. Whitney,Yoshinori Yonekura,Yasuo Fukui +13 more
TL;DR: A catalog of 1439 young stellar objects (YSOs) spanning the 1.42 deg^2 field surveyed by the Chandra Carina Complex Project (CCCP), which includes the major ionizing clusters and the most active sites of ongoing star formation within the Great Nebula in Carina is presented in this article.
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