Monoceros R2 Cloud Chandra X-Ray Point Source Catalog

The Monoceros R2 (Mon R2) Cloud X-Ray Point Source Catalog contains the results of the Chandra ACIS-I observation of the central region of this high-mass star-forming region (SFR), which lies at a distance of 830pc. With a deep exposure of ~ 100 ks, the authors detected 368 X-ray sources, ~80% of which were identified with near-infrared (NIR) counterparts. They systematically analyzed the spectra and time variability of most of the X-ray emitting sources and provide a comprehensive X-ray source catalog for the first time. Using the J-, H- and K-bands magnitudes of the NIR counterparts, they have estimated the evolutionary phase, classical T Tauri (CTT) stars and weak-lined T Tauri (WTT) stars, and the masses of the X-ray emitting sources, and have analyzed their X-ray properties as a function of age and mass. They found a marginal hint that CTT stars have a slightly higher temperature (2.4 keV) that of WTT stars (2.0 keV). A significant fraction of the high- and intermediate-mass sources have time variability and high plasma temperatures (2.7 keV) simailar to those of the low-mass stars (2.0 keV). This supports earlier proposals that high- and intermediate-mass young stellar objects emit X-rays via magnetic activity. The authors also found a significant difference in the spatial distribution between X-ray and NIR sources. This table was created by the HEASARC in January 2007 based on CDS table J/PASJ/55/635/table1.dat This is a service provided by NASA HEASARC .

                                            [
  "026:00"
]
                                        

                                            {
  "fn": "Tess Jaffe",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:tess.jaffe@nasa.gov"
}
                                        

                                            [
  {
    "@type": "dcat:Distribution",
    "title": "Data Information (HTML)",
    "format": "HTML",
    "mediaType": "text/html",
    "downloadURL": "https://heasarc.gsfc.nasa.gov/W3Browse/all/monr2cxo.html"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Data Information (Unknown Format)",
    "format": "BIN",
    "mediaType": "application/octet-stream",
    "downloadURL": "https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=monr2cxo&"
  }
]
                                        

                                            [
  "na"
]
                                        

                                            [
  "026:000"
]
                                        

                                            {
  "name": "High Energy Astrophysics Science Archive Research Center",
  "@type": "org:Organization"
}
                                        

                                            [
  "Astrophysics"
]