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Related papers: The Chandra Observation of the IP TX Col

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(Abridged) We have discovered an intermediate polar (IP) in the 100 ks Chandra observation of Baade's Window (BW), a low extinction region at ~ 4 deg south of the Galactic Center. The source exhibits large X-ray modulations at a period of…

High Energy Astrophysical Phenomena · Physics 2011-02-11 JaeSub Hong , Maureen van den Berg , Silas Laycock , Jonathan E. Grindlay , Ping Zhao

We present the timing analysis of the intermediate polar TX Col in the X-ray band using the observations made by Chandra, Swift, and Suzaku during the years 2000, 2007, and 2009, respectively. The spin, orbital, and beat periods derived…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Jeewan Chandra Pandey , Nikita Rawat , Srinivas M. Rao , Arti Joshi , Sadhana Singh

Chandra serendipitously observed the eclipsing (80 deg < i < 84 deg) intermediate polar, XY Arietis (=H0253+193), in two separate but continuous observations five weeks apart. XY Ari was in a quiescent state during both observations. We…

Astrophysics · Physics 2009-11-10 A. Salinas , E. M. Schlegel

Anticipating forthcoming observations with the Chandra X-ray telescope, we describe the continuation of interstellar cooling flows deep into the cores of elliptical galaxies. Interstellar gas within about r = 50 parsecs from the massive…

Astrophysics · Physics 2009-10-31 Fabrizio Brighenti , William G. Mathews

We present the results of a 500 ksec observation of the Perseus cluster with INTEGRAL, with the aim of investigating the possible diffuse non-thermal component detected in a previous Chandra observation. In the 3-20 keV band with the JEM-X…

Astrophysics · Physics 2009-11-13 D. Eckert , S. Paltani

I review the operational capabilities of the Chandra X-ray Observatory, including some of the spectacular results obtained by the general observer community. A natural theme of this talk is that Chandra is revealing outflows of great…

Astrophysics · Physics 2009-11-10 Daniel A. Schwartz

A personal selection of noteworthy X-ray results on CVs are presented, with emphasis on XMM-Newton and Chandra observations. Progressing roughly from broad-band view to narrow-band, high spectral resolution studies, I summarize: the energy…

Astrophysics · Physics 2007-05-23 K. Mukai

Recently, unresolved hard (20-40 keV) X-ray emission has been discovered within the central 10 pc of the Galaxy, possibly indicating a large population of intermediate polars (IPs). Chandra and XMM-Newton measurements in the surrounding ~50…

We present a brief review of Chandra X-ray Observatory observations of neutron stars. The outstanding spatial and spectral resolution of this great observatory have allowed for observations of unprecedented clarity and accuracy. Many of…

Astrophysics · Physics 2008-11-26 M. C. Weisskopf , M. Karovska , G. G. Pavlov , V. E. Zavlin , T. Clarke

About 2 million seconds of Chandra observing time have been devoted to the Galactic center (GC), including large-scale surveys and deep pointings. These observations have led to the detection of about 4000 discrete X-ray sources and the…

Astrophysics · Physics 2009-11-11 Q. Daniel Wang

We present the results of a 53 ks long Chandra observation of the dipping source XB 1254--690. During the observation neither bursts or dips were observed. From the zero-order image we estimated the precise X-ray coordinates of the source…

Astrophysics · Physics 2009-11-11 R. Iaria , T. Di Salvo , G. Lavagetto , A. D' Ai' , N. R. Robba

We report on 0.3-10 keV observations with the Chandra X-ray Observatory of eight hard X-ray sources discovered within 8 degrees of the Galactic plane by the INTEGRAL satellite. The short (5 ks) Chandra observations of the IGR source fields…

High Energy Astrophysical Phenomena · Physics 2016-01-13 John A. Tomsick , Roman Krivonos , Qinan Wang , Arash Bodaghee , Sylvain Chaty , Farid Rahoui , Jerome Rodriguez , Francesca M. Fornasini

We have observed the quasi-persistent neutron-star X-ray transient and eclipsing binary MXB 1659-29 in quiescence on three occasions with Chandra. The purpose of our observations was to monitor the quiescent behavior of the source after its…

Astrophysics · Physics 2009-11-10 Rudy Wijnands , Jeroen Homan , Jon M. Miller , Walter H. G. Lewin

We present an analysis of the spectral properties of the peculiar X-ray pulsar X Per based on INTEGRAL observations. We show that the source exhibits an unusually hard spectrum and is confidently detected by ISGRI up to more than 100 keV.…

High Energy Astrophysical Phenomena · Physics 2012-03-23 V. Doroshenko , A. Santangelo , I. Kreykenbohm , R. Doroshenko

We present the broadband phase averaged spectrum of one of the brightest intermediate polars V1223 Sgr, obtained with INTEGRAL and RXTE observatories (3-100 keV). Good statistical quality of the spectrum in a hard X-ray energy band…

Astrophysics · Physics 2009-11-10 M. Revnivtsev , A. Lutovinov , V. Suleimanov , R. Sunyaev , V. Zheleznyakov

We report on an observation of the recently discovered accreting millisecond X-ray pulsar IGR J00291+5934 performed with the RXTE-Proportional Counter Array (PCA) and Chandra-High Energy Transmission Grating Spectrometer (HETGS). The RXTE…

Astrophysics · Physics 2009-11-11 A. Paizis , M. A. Nowak , J. Wilms , T. J. -L. Courvoisier , K. Ebisawa , J. Rodriguez , P. Ubertini

We present X-ray imaging, timing, and phase resolved spectroscopy of the anomalous X-ray pulsar 1E 2259+58.6 using the Chandra X-ray Observatory. The spectrum is well described by a power law plus blackbody model with power law index =…

We report the results of a 2-month campaign conducted with the Chandra X-ray observatory to monitor the ultraluminous X-ray source (ULX) NGC 5204 X-1. This was composed of a 50-ks observation, followed by ten 5-ks follow-ups spaced…

Astrophysics · Physics 2009-11-11 T. P. Roberts , R. E. Kilgard , R. S. Warwick , M. R. Goad , M. J. Ward

We present new measurements of the large scale clustering component of the cross-power spectra of the source-subtracted Spitzer-IRAC Cosmic Infrared Background (CIB) and Chandra-ACIS Cosmic X-ray Background (CXB) surface brightness…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-04 N. Cappelluti , R. Arendt , A. Kashlinsky , Y. Li , G. Hasinger , K. Helgason , M. Urry , P. Natarajan , A. Finoguenov

The bright X-ray source, 2XMMi J180438.7-145647 is fortunate to have long baseline observations in INTEGRAL that compliment observations taken by other missions. Optical spectroscopy of this object has suggested a distance of ~7 kpc and an…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Matthew J. Middleton , Edward M. Cackett , Craig Shaw , Gavin Ramsay , Timothy P. Roberts , Peter J. Wheatley
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