Trifid Nebula (M 20) Chandra X-Ray Point Source Catalog

This table contains a list of the Trifid Nebula (M 20) X-Ray point sources detected by the Chandra X-ray Observatory (CXO) in an observation carried out on 2002 June 13. The Trifid Nebula, a young star-forming H II region, was observed for 16 hr by the Advanced CCD Imaging Spectrometer imaging array, ACIS-I, detector. 304 X-ray sources were detected, 30% of which are hard sources (defined as those sources having a 0.5-2.0 keV to 2.0-8.0 keV hardness ratio > -0.2) and 70% of which have near-infrared counterparts. This table was created by the HEASARC in January 2007 based on CDS table J/ApJ/607/904/table1.dat. This is a service provided by NASA HEASARC .

Data and Resources

Additional Info

Field Value
Maintainer HEASARC Help Desk
Last Updated November 5, 2026, 10:08 (UTC)
Created April 1, 2025, 12:50 (UTC)
Identifier ivo://nasa.heasarc/trifidcxo
Modified 2026-11-02T22:16:00Z
Theme {Astrophysics}
accessLevel public
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harvest_source_title Science Discovery Engine
landingPage ivo://nasa.heasarc/trifidcxo
license https://www.usa.gov/government-works
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publisher High Energy Astrophysics Science Archive Research Center
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