English
Related papers

Related papers: Identifying XMM-Newton observations affected by so…

200 papers

Observations of the CMB can be contaminated by diffuse foreground emission from sources such as Galactic dust and synchrotron radiation. In these cases, the morphology of the contaminating source is known from observations at different…

The magnetic variance anisotropy ($\mathcal{A}_m$) of the solar wind has been used widely as a method to identify the nature of solar wind turbulent fluctuations; however, a thorough discussion of the meaning and interpretation of the…

Space Physics · Physics 2015-06-05 J. M. TenBarge , J. J. Podesta , K. G. Klein , G. G. Howes

Though theoretically expected, the charge exchange emission from galaxy clusters has not yet been confidently detected. Accumulating hints were reported recently, including a rather marginal detection with the Hitomi data of the Perseus…

High Energy Astrophysical Phenomena · Physics 2018-03-21 Liyi Gu , Junjie Mao , Jelle de Plaa , A. J. J. Raassen , Chintan Shah , Jelle S. Kaastra

(Abridged) We present results based on XMM-Newton observation of the nearby spiral galaxy M51 (NGC5194 and NGC5195). Two ULXs in NGC5194 show evidence for short-term variability, and all but two ULXs vary on long time scales (over a…

Preliminary results are presented which suggest that scaling and singularity characteristics of solar wind and ground based magnetic fluctuations appear to be a significant component in the solar wind - magnetosphere interaction processes.…

Space Physics · Physics 2020-01-29 Z. Vörös , D. Jankovičová , P. Kovács

In the present work we utilize ACE/SWICS in-situ measurements of the properties of the solar wind outside ICMEs in order to determine whether, and to what extent are the solar wind properties affected by the solar cycle. We focus on proton…

Solar and Stellar Astrophysics · Physics 2022-01-17 A. Cardenas-O'Toole , E. Landi

We report on first results of XMM-Newton observations of nearby starburst galaxies that form part of a multi-wavelength study of gaseous halos around late-type spiral galaxies and their dependence on the level of star formation activity in…

Astrophysics · Physics 2007-05-23 M. Ehle

We report on the results of a four-year long X-ray monitoring campaign of the central 1.2 square degrees of our Galaxy, performed with Chandra and XMM-Newton between 2005 and 2008. Our study focuses on the properties of transient X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-04 N. Degenaar , R. Wijnands , E. M. Cackett , J. Homan , J. J. M. in 't Zand , E. Kuulkers , T. J. Maccarone , M. van der Klis

We have been conducting a comprehensive survey of stellar coronae with the XMM-Newton Reflection Grating Spectrometers during the commissioning, calibration, verification, and guaranteed time phases of the mission, accompanied by…

X-ray emissions from cometary atmospheres were modeled from first principles using the charge-exchange interaction with solar wind ions as well as coherent scattering of solar X-rays from dust and ice grains. Scattering cross-sections were…

High Energy Astrophysical Phenomena · Physics 2018-01-31 Bradford Snios , Jack Lichtman , Vasili Kharchenko

We present the data analysis and the X-ray source counts for the first season of XMM-Newton observations in the COSMOS field. The survey covers ~2 deg^2 within the region of sky bounded by 9^h57.5^m<R.A.<10^h03.5^m; 1^d27.5^m<DEC<2^d57.5^m…

We present new X-ray and radio observations of the WR star EZ CMa (HD 50896) obtained with XMM-Newton and the VLA. This WN4 star shows optical/UV variability at a period of 3.76 d whose cause is unknown. VLA flux measurements at five…

Astrophysics · Physics 2009-11-07 S. L. Skinner , S. A. Zhekov , M. Guedel , W. Schmutz

The low background, good spatial resolution and great sensitivity of the EPIC-pn camera on XMM-Newton give useful limits for the detection of extended sources even during the short exposures made during slewing maneouvers. In this paper we…

Astrophysics · Physics 2007-05-23 V. Lazaro , R. Saxton , A. M. Read , M. P. Esquej , M. J. Freyberg , B. Altieri , D. Bermejo

We present results from a joint Xmm-Newton/NuSTAR monitoring of the Seyfert 1 NGC 4593, consisting of 5x20 ks simultaneous observations spaced by two days, performed in January 2015. The source is variable, both in flux and spectral shape,…

High Energy Astrophysical Phenomena · Physics 2016-08-17 F. Ursini , P. -O. Petrucci , G. Matt , S. Bianchi , M. Cappi , B. De Marco , A. De Rosa , J. Malzac , A. Marinucci , G. Ponti , A. Tortosa

This article provides a review of X-ray variability from late-type stars with particular focus on the achievements of XMM-Newton and its potential for future studies in this field.

Solar and Stellar Astrophysics · Physics 2017-05-10 B. Stelzer

We present results from a study of short term variability in 19 archival observations by XMM-Newton of 16 Ultraluminous X-ray Sources (ULXs). Eight observations (six sources) showed intrinsic variability with power spectra in the form of…

High Energy Astrophysical Phenomena · Physics 2015-05-13 L. M. Heil , S. Vaughan , T. P. Roberts

The electronic properties of the Mn:GaSe interface, produced by evaporating Mn at room temperature on an epsilon-GaSe(0001) single crystal surface, have been studied by soft X-ray spectroscopies. Substitutional effects of Mn replacing Ga…

Materials Science · Physics 2013-05-14 S. Dash , G. Drera , E. Magnano , F. Bondino , P. Galinetto , M. C. Mozzati , G. Salvinelli , V. Aguekian , L. Sangaletti

The bright blazar Mkn 421 has been observed four times for uninterrupted durations of ~ 9 - 13 hr during the performance verification and calibration phases of the XMM-Newton mission. The source was strongly variable in all epochs, with…

Astrophysics · Physics 2009-11-07 S. Sembay , R. Edelson , A. Markowitz , R. G. Griffiths , M. J. L. Turner

Chandra or XMM-Newton observations of quiescent low-mass X-ray binaries can provide important constraints on the equation of state of neutron stars. The mass and radius of the neutron star can potentially be determined from fitting a…

Astrophysics · Physics 2008-11-26 P. G. Jonker

A detailed characterization of the particle induced background is fundamental for many of the scientific objectives of the Athena X-ray telescope, thus an adequate knowledge of the background that will be encountered by Athena is desirable.…

‹ Prev 1 8 9 10 Next ›