X-Ray-emitting Young Stars in the Orion Nebula

@article{Feigelson2002XRayemittingYS,
  title={X-Ray-emitting Young Stars in the Orion Nebula},
  author={E. Feigelson and P. Broos and J. A. Gaffney and G. Garmire and L. Hillenbrand and S. Pravdo and L. Townsley and Y. Tsuboi},
  journal={The Astrophysical Journal},
  year={2002},
  volume={574},
  pages={258-292}
}
The Orion Nebula Cluster and the molecular cloud in its vicinity have been observed with the ACIS-I detector on board the Chandra X-ray Observatory with 23 hr exposure in two observations. We detect 1075 X-ray sources, most with subarcsecond positional accuracy. Ninety-one percent of the sources are spatially associated with known stellar members of the cluster, and an additional 7% are newly identified deeply embedded cloud members. This provides the largest X-ray study of a pre-main-sequence… Expand
Chandra Study of Young Stellar Objects in the NGC 1333 Star-forming Cloud
NGC 1333, a highly active star formation region within the Perseus molecular cloud complex, has been observed with the ACIS-I detector on board the Chandra X-Ray Observatory. In our image with aExpand
X-RAYS IN THE ORION NEBULA CLUSTER: CONSTRAINTS ON THE ORIGINS OF MAGNETIC ACTIVITY IN PRE-MAIN-SEQUENCE STARS
A recent observation of the Orion Nebula Cluster with the ACIS instrument on board the Chandra X-Ray Observatory detected 1075 sources, 525 of which are pre-main-sequence (PMS) stars with measuredExpand
X-Ray Emission from Early-Type Stars in the Orion Nebula Cluster
The X-ray properties of twenty ~1 Myr old O, B, and A stars of the Orion Trapezium are examined with data from the Chandra Orion Ultradeep Project (COUP). On the basis of simple theories for X-rayExpand
X-Ray Emission from Young Brown Dwarfs in the Orion Nebula Cluster
We use the sensitive X-ray data from the Chandra Orion Ultradeep Project (COUP) to study the X-ray properties of 34 spectroscopically identified brown dwarfs with near-infrared spectral types betweenExpand
Chandra X-Ray Observations of Young Clusters. II. Orion Flanking Fields Data
We present results of Chandra observations of two flanking fields (FFs) in Orion, outside the Orion Nebula Cluster (ONC). The observations were taken with the ACIS-I camera with an exposure time ofExpand
GLOBAL X-RAY PROPERTIES OF THE ORION NEBULA REGION
Based on the Chandra Orion Ultradeep Project (COUP) observation, we establish the global X-ray properties of the stellar population associated with the Orion Nebula. Three components contributeExpand
Chandra X-ray observations of the young stellar cluster NGC 6193 in the Ara OB1 association
A 90-ks Chandra High Energy Transmission Grating observation of the young stellar cluster NGC 6193 in the southern Ara OB1 association detected 43 X-ray sources in a 2 x 2 arcmin 2 core regionExpand
X-Ray and Infrared Observations of Embedded Young Stars in L1630
The HH 24-26 star-forming region in the Lynds 1630 (L1630) dark cloud in Orion contains a remarkable collection of rare Class 0 and Class I protostars, collimated molecular and ionized jets, and aExpand
A Chandra X-Ray Study of the Globular Cluster M80
We report our analysis of a Chandra X-ray observation of the rich globular cluster M80, in which we detect some 19 sources to a limiting 0.5-2.5 keV X-ray luminosity of 7*10^30 ergs/s within theExpand
An X-Ray Census of Young Stars in the Chamaeleon I North Cloud
Sensitive X-ray imaging surveys provide a new and effective tool to establish the census of pre-main-sequence (PMS) stars in nearby young stellar clusters. We report here a deep Chandra X-RayExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 114 REFERENCES
Chandra X-Ray Observatory Study of the Orion Nebula Cluster and BN/KL Region
About 1000 X-ray emitting young pre–main-sequence (PMS) stars distributed in mass from ~0.05 M☉ brown dwarfs to a ~50 M☉ O star are detected in an image of the Orion Nebula obtained with the AdvancedExpand
The complete Einstein Observatory X-ray survey of the Orion Nebula region.
We have analyzed archival Einstein Observatory images of a roughly 4.5 square degree region centered on the Orion Nebula. In all, 245 distinct X-ray sources have been detected in six High ResolutionExpand
THE X-RAY EMISSION OF A-TYPE STARS
From X-ray images in the ROSAT public archives, we determine soft X-ray fluxes, or flux upper limits, for 74 A-type stars, which have been observed during deep integrations with the PSPC. NineExpand
Deep ROSAT HRI Observations of the Orion Nebula
We present results from three deep ROSAT high-resolution imager observations of the Orion Nebula star-forming region. The X-ray images contain over 1500 cataloged stars in a roughly 0.8 sq deg regionExpand
Large X-Ray Flare from the Herbig Be Star MWC 297
Hard X-ray emissions from the Herbig Be star MWC 297 were discovered in three separate observations spanning 5 days in 1994 April with the Advanced Satellite for Cosmology and Astrophysics (ASCA). AnExpand
X-rays from the Orion Trapezium
Observations of the Orion Nebula region and the associated X-ray source 4U 0531-05 with the SAS 3 rotation modulation collimators are presented which yield a precise position for a small component ofExpand
Magnetic Flaring in the Pre-Main-Sequence Sun and Implications for the Early Solar System
To address the role of energetic processes in the solar nebula, we provide a detailed characterization of magnetic flaring in stellar analogs of the pre-main-sequence Sun based on two 0.5 dayExpand
An X-ray active region in Orion - X-rays from a Herbig-Haro object
The Imaging Proportional Counter on the Einstein X-ray Observatory has observed an approximately 1.0 deg square region in Orion centered near right ascension (1950) = 5 hours 34 min, declination = -6Expand
Chandra Observation of the ρ Ophiuchi Cloud
We observed a 17' ? 17' region of the ? Oph molecular cloud, using the ACIS-I array on board the Chandra X-Ray Observatory. A 100 ks exposure observation revealed ~100 X-ray sources above theExpand
Discovery of three X-ray luminous pre-main-sequence stars
Three X-ray sources found serendipitously in Einstein images of the Taurus-Auriga cloud complex were observed at the McGraw-Hill Observatory and are found to be associated with stars of approximatelyExpand
...
1
2
3
4
5
...