Fig 9 - uploaded by Wen-Ping Chen
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-The NIR color-color diagram of the X-ray sources. The dwarf and giant loci are shown as solid curves (Bessell & Brett 1988) and the classical T Tauri locus is shown as the dashed line (Meyer et al. 1997). The dotted lines represent the reddening band.
Source publication
We present a multiwavelength study of the central part of the Carina Nebula, including Trumpler 16 and part of Trumpler 14. Analysis of the Chandra X-ray Observatory archival data led to the identification of nearly 450 X-ray sources. These were then cross-identified with optical photometric and spectroscopic information available from literature,...
Similar publications
We present a multiwavelength study of the central region of the Carina Nebula, including Trumpler 16 and part of Trumpler 14. Our analysis of the Chandra X-Ray Observatory archival data led to the identification of 454 X-ray sources. These sources were then cross-identified with optical photometric and spectroscopic information available from the l...
Citations
... These include studies of 30 Doradus (Townsley et al. 2006a,b), NGC 6334 (Ezoe et al. 2006), σ Orionis (Franciosini et al. 2006), Westerlund 1 (Skinner et al. 2006;Muno et al. 2006), RCW 38 (Wolk et al. 2006), Cepheus B/OB3b , NGC 6357 (J. , M17 , NGC 2362 (Delgado et al. 2006), NGC 2264 Rebull et al. 2006), Trumpler 16 in Carina (Sanchawala et al. 2006), NGC 6231 (Sana et al. 2006), the Orion Nebula Cluster , the Arches and Quintuplet clusters (Q. , and W49A . ...
The Chandra X-ray Observatory is providing fascinating new views of massive star-forming regions, revealing all stages in the life cycles of massive stars and their effects on their surroundings. I present a Chandra tour of some of the most famous of these regions: M17, NGC 3576, W3, Tr14 in Carina, and 30 Doradus. Chandra highlights the physical processes that characterize the lives of these clusters, from the ionizing sources of ultracompact HII regions (W3) to superbubbles so large that they shape our views of galaxies (30 Dor). X-ray observations usually reveal hundreds of pre-main sequence (lower-mass) stars accompanying the OB stars that power these great HII region complexes, although in one case (W3 North) this population is mysteriously absent. The most massive stars themselves are often anomalously hard X-ray emitters; this may be a new indicator of close binarity. These complexes are sometimes suffused by soft diffuse X-rays (M17, NGC 3576), signatures of multi-million-degree plasmas created by fast O-star winds. In older regions we see the X-ray remains of the deaths of massive stars that stayed close to their birthplaces (Tr14, 30 Dor), exploding as cavity supernovae within the superbubbles that these clusters created.
We present causal and positional evidence of triggered star formation in
bright-rimmed clouds in OB associations, e.g., Ori OB1, and Lac OB1, by
photoionization. The triggering process is seen also on a much larger scale in
the Orion-Monoceros Complex by the Orion-Eridanus Superbubble. We also show how
the positioning of young stellar groups surrounding the H II region associated
with Trumpler 16 in Carina Nebula supports the triggering process of star
formation by the collect-and-collapse scenario.
