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We describe results from our initial study of the diffuse X-ray emission structures in NGC 5128 (Cen A) using the Chandra X-ray Observatory observations. The high-angular resolution Chandra images reveal multi-scale X-ray struct ures with…

Astrophysics · Physics 2009-11-07 M. Karovska , G. Fabbiano , F. Nicastro , M. Elvis , R. P. Kraft , S. S. Murray

We present an analysis of the X-ray bright point source population in 43 massive clusters of galaxies observed with the Chandra X-ray Observatory. We have constructed a catalog of 4210 rigorously selected X-ray point sources in these…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 S. Ehlert , S. W. Allen , W. N. Brandt , Y. Q. Xue , B. Luo , A. von der Linden , A. Mantz , R. G. Morris

We present arcsecond resolution Chandra X-ray and ground-based optical H-alpha imaging of a sample of ten edge-on star-forming disk galaxies (seven starburst and three ``normal'' spiral galaxies), a sample which covers the full range of…

Astrophysics · Physics 2009-11-10 D. K. Strickland , T. M. Heckman , E. J. M. Colbert , C. G. Hoopes , K. A. Weaver

The Chandra Multi-wavelength Project (ChaMP) is a wide-area (~14 deg^2) survey of serendipitous Chandra X-ray sources, aiming to establish fair statistical samples covering a wide range of characteristics (such as absorbed AGNs, high z…

The key empirical property of the X-ray emission from O stars is a strong correlation between the bolometric and X-ray luminosities. In the framework of the Chandra Carina Complex Project, 129 O and B stars have been detected as X-ray…

Archival Chandra observations are used to study the X-ray emission associated with star formation in the central region of the nearby SAB(s)cd galaxy NGC 2403. The distribution of X-ray emission is compared to the morphology visible at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Mihoko Yukita , Douglas A. Swartz , Allyn F. Tennant , Roberto Soria

We present followup optical g', r', and i', imaging and spectroscopy of serendipitous X-ray sources detected in 6 archival Chandra, images included in the Chandra, Multiwavelength Project (ChaMP). Of the 486 X-ray sources detected between…

Forming high-mass stars have a significant effect on their natal environment. Their feedback pathways, including winds, outflows, and ionising radiation, shape the evolution of their surroundings which impacts the formation of the next…

Astrophysics of Galaxies · Physics 2020-01-08 P. D. Klaassen , M. R. Reiter , A. F. McLeod , J. C. Mottram , J. E. Dale , M. Gritschneder

The universe provides numerous extremely interesting astrophysical sources of synchrotron X radiation. The Chandra X-ray Observatory and other X-ray missions provide powerful probes of these and other cosmic X-ray sources. Chandra is the…

Astrophysics · Physics 2007-05-23 Martin C. Weisskopf

We present an analysis of two deep (75 ks) Chandra observations of the European Large Area ISO Survey (ELAIS) fields N1 and N2 as the first results from the ELAIS deep X-ray survey. This survey is being conducted in well studied regions…

(abridged) We present an analysis of Chandra X-ray observations of a sample of eight dwarf starburst galaxies (I Zw 18, VII Zw 403, NGC 1569, NGC 3077, NGC 4214, NGC 4449, NGC 5253, and He 2-10). Extended, diffuse X-ray emission is detected…

Astrophysics · Physics 2009-11-10 Juergen Ott , Fabian Walter , Elias Brinks

We present catalogs for the ~2 Ms Chandra Deep Field-North, currently the deepest X-ray observation of the Universe in the 0.5-8.0 keV band. Five hundred and three (503) X-ray sources are detected over an ~448 sq.arcmin area in up to seven…

We describe the X-ray analysis procedure of the on-going Chandra Multiwavelength Plane (ChaMPlane) survey and report the initial results from the analysis of 15 selected anti-Galactic center observations (90 deg < l < 270 deg). We describe…

We have used the Chandra X-ray Observatory to resolve spatially and spectrally the X-ray emission from the Circinus Galaxy. We report here on the nature of the X-ray emission from the off-nuclear point sources associated with the disk of…

Astrophysics · Physics 2009-11-06 F. E. Bauer , W. N. Brandt , R. M. Sambruna , G. Chartas , G. P. Garmire , S. Kaspi , H. Netzer

The more than 80 nearby galaxies imaged with the Chandra Advanced CCD Imaging Spectrometer have been analyzed in a search for Ultra-Luminous X-ray (ULX) sources. The sample of galaxies span the range of Hubble morphological types and…

Astrophysics · Physics 2007-05-23 Douglas A. Swartz , Kajal K. Ghosh , Allyn F. Tennant

We present comprehensive X-ray point source catalogs of NGC~55, NGC~2403, and NGC~4214 as part of the Chandra Local Volume Survey. The combined archival observations have effective exposure times of 56.5 ks, 190 ks, and 79 ks for NGC~55,…

High Energy Astrophysical Phenomena · Physics 2015-09-16 B. Binder , B. F. Williams , M. Eracleous , P. P. Plucinsky , T. J. Gaetz , S. F. Anderson , E. D. Skillman , J. J. Dalcanton , A. K. H. Kong , D. R. Weisz

We present a catalog of 9017 X-ray sources identified in Chandra observations of a 2 by 0.8 degree field around the Galactic center. We increase the number of known X-ray sources in the region by a factor of 2.5. The catalog incorporates…

Identifying trends between observational data and the range of physical parameters of massive stars is a critical step to the still-elusive full understanding of the source, structure, and evolution of X-ray emission from the stellar winds,…

Solar and Stellar Astrophysics · Physics 2023-08-03 Pragati Pradhan , David P. Huenemoerder , Richard Ignace , Joy S. Nichols , A. M. T. Pollock

We present a catalog of 1439 young stellar objects (YSOs) spanning the 1.42 deg^2 field surveyed by the Chandra Carina Complex Project (CCCP), which includes the major ionizing clusters and the most active sites of ongoing star formation…

The Chandra X-ray Observatory has now discovered nearly 10,000 X-ray point sources in the 2 x 0.8 degree region around the Galactic Center (Muno 2009). The sources are likely to be a population of accreting binaries in the Galactic Center,…

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