English
Related papers

Related papers: XMM-Newton observation of the eclipsing binary Alg…

200 papers

We report on the analysis of a deep (100 ks) observation of the starburst galaxy M82 with the EPIC and RGS instruments on board the X-ray telescope XMM-Newton. The broad-band (0.5-10 keV) emission is due to at least three spectral…

Astrophysics · Physics 2008-05-06 Piero Ranalli , Andrea Comastri , Livia Origlia , Roberto Maiolino

We report on the ongoing data analysis of a very deep (~100 ks) XMM-Newton observation of the starburst galaxy M82. We show some details of data analysis and a few results from spatially-resolved spectroscopy with the EPIC cameras. Since…

Astrophysics · Physics 2007-05-23 Piero Ranalli , Livia Origlia , Andrea Comastri , Roberto Maiolino

We report on the XMM-Newton observation of the bright Seyfert 1 galaxy, MCG+8-11-11. Data from the EPIC/p-n camera, the Reflection Gratings Spectrometers (RGS) and the Optical Monitor (OM) have been analyzed. The p-n spectrum is well fitted…

Astrophysics · Physics 2009-11-11 G. Matt , S. Bianchi , A. De Rosa , P. Grandi , G. C. Perola

During an XMM-Newton observation, the eclipsing polar UZ For was found in a peculiar state with an extremely low X-ray luminosity and occasional X-ray and UV flaring. For most of the observation, UZ For was only barely detected in X-rays…

Astrophysics · Physics 2009-11-07 Dirk Pandel , France A. Cordova

We present an analysis of a recent XMM-Newton observation of Sgr A East, a supernova remnant located close to the Galactic Centre. Very high quality X-ray spectra reveal many emission lines from highly ionized atoms consistent with a…

Astrophysics · Physics 2009-11-10 Masaaki Sakano , Robert S. Warwick , Anne Decourchelle , Peter Predehl

We have observed the X-ray transient XTE J0421+56 in quiescence with XMM-Newton. The observed spectrum is highly unusual being dominated by an emission feature at ~6.5 keV. The spectrum can be fit using a partially covered power-law and…

Astrophysics · Physics 2009-11-07 L. Boirin , A. N. Parmar , T. Oosterbroek , D. Lumb , M. Orlandini , N. Schartel

The present paper focuses on the eclipsing binary KIC 8553788 which belongs to two different types of binary systems regarding its physical properties. In particular, it is one of the 71 oscillating stars of Algol type that have been…

Solar and Stellar Astrophysics · Physics 2018-09-05 Alexios Liakos

We present the analysis of multi-wavelength XMM-Newton data from the Seyfert galaxy NGC 3783, including UV imaging, X-ray and UV lightcurves, the 0.2-10 keV X-ray continuum, the iron K-alpha emission line, and high-resolution spectroscopy…

We present a deep XMM-Newton observation of the Galactic halo emission in the direction of the blazar 1ES 1553+113. In order to extract the Galactic halo component from the diffuse soft X-ray emission spectrum, accurately modeling the…

Astrophysics of Galaxies · Physics 2020-07-23 Sanskriti Das , Smita Mathur , Anjali Gupta , Fabrizio Nicastro , Yair Krongold

We present results from two XMM-Newton observations of the bright classical Seyfert 2 galaxy NGC 7582 taken four years apart (2001 May and 2005 April). We present the analysis of the high-resolution (0.3-1 keV) RGS and low-resolution…

Astrophysics · Physics 2009-11-13 E. Piconcelli , S. Bianchi , M. Guainazzi , F. Fiore , M. Chiaberge

We present an in-depth study of a large and long duration ($>$1.3 days) X-ray flare observed on an RS CVn type eclipsing binary system SZ Psc using observations from Swift observatory. In the 0.35$-$10 keV energy band, the peak luminosity…

Solar and Stellar Astrophysics · Physics 2022-10-26 Subhajeet Karmakar , Sachindra Naik , Jeewan C. Pandey , Igor S. Savanov

X-ray observations of neutron star (NS) low mass X-ray binaries (LMXBs) are useful to probe physical processes close to the NS and to constrain source parameters. Aql X-1 is a transient NS LMXB which frequently undergoes outbursts provides…

High Energy Astrophysical Phenomena · Physics 2024-07-12 Karthik Gananath Putha , Yash Bhargava , Sudip Bhattacharyya

The eclipsing and double-lined spectroscopic binary system V453 Cygni consists of two early B-type stars, one of which is nearing the terminal age main sequence and one which is roughly halfway through its main sequence lifetime. Accurate…

Astrophysics · Physics 2009-11-13 K. Pavlovski , J. Southworth

We report on results obtained with the XMM-Newton observation of Feige 34 carried out in April 2018. This is the first spectroscopic X-ray observation of a compact and helium-poor hot subdwarf star. The source was detected at a flux level…

High Energy Astrophysical Phenomena · Physics 2021-03-10 N. La Palombara , S. Mereghetti , P. Esposito , A. Tiengo

We present new XMM-Newton observation of the Ultra Luminous Infrared Galaxy (ULIRG) NGC 6240. We analyze the reflecting grating spectrometer (RGS) data, and data from the other instruments, and find a starburst dominated 0.5-3 keV spectrum…

We report the XMM-Newton/EPIC detection in 2008 March of a luminous (L_X ~ 10^32-33 erg/s), variable X-ray source in the vicinity (within ~6") of the enigmatic star V838 Mon, which underwent a spectacular outburst in early 2002. Spectral…

Solar and Stellar Astrophysics · Physics 2014-11-20 Fabio Antonini , Rodolfo Jr. Montez , Joel H. Kastner , Howard E. Bond , Noam Soker , Romuald Tylenda , Sumner Starrfield , Ehud Behar

We present a multiwavelength observation of a cool core that does not appear to be associated with any galaxy, in a nearby cluster, Abell~1142. Its X-ray surface brightness peak of $\lesssim2$ keV is cooler than the ambient intracluster gas…

Astrophysics of Galaxies · Physics 2023-10-10 Yuanyuan Su , Francoise Combes , Valeria Olivares , Gianluca Castignani , Pablo Torne , Reinout van Weeren

(Abridged) The galaxy cluster Abell 2218, at z=0.171, is well-known for the discrepancy between mass estimates derived from X-ray and strong lensing analyses. With the present XMM observation, we trace the gas density and temperature…

Astrophysics · Physics 2009-11-10 G. W. Pratt , H. Boehringer , A. Finoguenov

We report the serendipitous detection of a giant X-ray flare from the source 2XMM J043527.2-144301 during an XMM-Newton observation of the high latitude molecular cloud MBM20. The source has not been previously studied at any wavelength.…

Solar and Stellar Astrophysics · Physics 2015-05-27 Anjali Gupta , Massimiliano Galeazzi , Benjamin Williams

V902 Mon is one of a few eclipsing Intermediate Polars (IPs), and show deep eclipses in the optical lightcurves. The presence of a strong Fe K$\alpha$ fluorescence line in its X-ray spectrum and its low X-ray flux compared to other IPs…

High Energy Astrophysical Phenomena · Physics 2025-02-18 Nazma Islam , Koji Mukai
‹ Prev 1 3 4 5 6 7 10 Next ›