Chandra X-ray observations of NGC 2024 Virtual Observatory Resource

Authors
  1. Skinner S.
  2. Gagne M.
  3. Belzer E.
  4. Published by
    CDS
Abstract

We present results of a sensitive 76ks Chandra observation of the young stellar cluster in NGC 2024, lying at a distance of ~415pc in the Orion B giant molecular cloud. Previous infrared observations have shown that this remarkable cluster contains several hundred embedded young stars, most of which are still surrounded by circumstellar disks. Thus, it presents a rare opportunity to study X-ray activity in a large sample of optically invisible protostars and classical T Tauri stars (CTTSs) undergoing accretion. Chandra detected 283 X-ray sources, of which 248 were identified with counterparts at other wavelengths, mostly in the near-infrared. Astrometric registration of Chandra images against the Two Micron All Sky Survey (2MASS) resulted in positional offsets of ~0.25" near field center, yielding high confidence identifications of infrared counterparts.

Keywords
  1. stellar-associations
  2. pre-main-sequence-stars
  3. x-ray-sources
Bibliographic source Bibcode
2003ApJ...598..375S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/598/375
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/598/375
Document Object Identifer DOI
doi:10.26093/cds/vizier.15980375

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History

2004-11-24T22:31:08Z
Resource record created
2004-11-24T21:31:25Z
Updated
2004-11-24T22:31:08Z
Created

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr