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We aim at characterizing a sample of 9 new hard X-ray selected Cataclysmic Variable (CVs), to unambiguously identify them as magnetic systems of the Intermediate Polar (IP) type. We performed timing and spectral analysis by using X-ray, and…

High Energy Astrophysical Phenomena · Physics 2015-06-04 F. Bernardini , D. de Martino , M. Falanga , K. Mukai , G. Matt , J. -M. Bonnet-Bidaud , N. Masetti , M. Mouchet

A significant number of cataclysmic variables were detected as hard X-ray sources in the INTEGRAL survey, most of them of the magnetic intermediate polar type. We present a detailed X-ray broad-band study of two new sources, IGR J00234+6141…

Solar and Stellar Astrophysics · Physics 2010-07-21 G. Anzolin , D. de Martino , M. Falanga , K. Mukai , J. -M. Bonnet-Bidaud , M. Mouchet , Y. Terada , M. Ishida

In this paper, we report on the available X-ray data collected by INTEGRAL, Swift, and XMM-Newton during the first outburst of the INTEGRAL transient IGR J17451-3022, discovered in 2014 August. The monitoring observations provided by the…

High Energy Astrophysical Phenomena · Physics 2016-04-13 E. Bozzo , P. Pjanka , P. Romano , A. Papitto , C. Ferrigno , S. Motta , A. A. Zdziarski , F. Pintore , T. Di Salvo , L. Burderi , D. Lazzati , G. Ponti , L. Pavan

We present the first X-ray observations with the XMM-Newton and INTEGRAL satellites of the recently discovered cataclysmic variable 1RXSJ173021.5-055933, together with simultaneous UV and coordinated optical photometry aiming at…

We report on the Swift/XRT Deep Galactic Plane Survey discovery and multi-wavelength follow-up observations of a new intermediate polar Cataclysmic Variable, Swift J183920.1-045350. A 449.7 s spin period is found in Xmm-Newton and NuSTAR…

We report the results from a detailed spectro-imaging and temporal analysis of an archival XMM-Newton observation of a new intermediate polar XMMU J185330.7-012815. Its X-ray spectrum can be well-described by a multi-temperature thermal…

High Energy Astrophysical Phenomena · Physics 2015-05-30 C. Y. Hui , K. Sriram , C. -S. Choi

Using X-ray observations from the NuSTAR and Swift satellites, we present temporal and spectral properties of an intermediate polar (IP) IGR J16547-1916. A persistent X-ray period at ~ 546 s confirming the optical spin period obtained from…

High Energy Astrophysical Phenomena · Physics 2022-01-05 A. Joshi , W. Wang , J. C. Pandey , K. P. Singh , S. Naik , A. Raj , G. C. Anupama , N. Rawat

We present analyses of an Intermediate Polar, IGR J15094-6649, based on the archival optical data obtained from the Transiting Exoplanet Survey Satellite (TESS) and X-ray data obtained from the Suzaku, NuSTAR, and Neil Gehrels Swift…

High Energy Astrophysical Phenomena · Physics 2023-04-19 Arti Joshi , Nikita Rawat , Axel Schwope , J. C. Pandey , Simone Scaringi , D. K. Sahu , Srinivas M Rao , Mridweeka Singh

Many new and unidentified Galactic sources have recently been revealed by ongoing hard X-ray surveys. A significant fraction of these have been shown to be the type of accreting white dwarfs known as cataclysmic variables (CVs). Follow-up…

High Energy Astrophysical Phenomena · Physics 2022-02-09 Benjamin M. Coughenour , John A. Tomsick , Aarran W. Shaw , Koji Mukai , Maïca Clavel , Jeremy Hare , Roman Krivonos , Francesca M. Fornasini

We present timing and spectral analysis of a sample of seven hard X-ray selected Cataclysmic Variable candidates based on simultaneous X-ray and optical observations collected with XMM-Newton , complemented with Swift/BAT and INTEGRAL/IBIS…

High Energy Astrophysical Phenomena · Physics 2017-08-02 F. Bernardini , D. de Martino , K. Mukai , D. M. Russell , M. Falanga , N. Masetti , C. Ferrigno , G. Israel

IGR J14091-6108 is a Galactic X-ray source known to have an iron emission line, a hard X-ray spectrum, and an optical counterpart. Here, we report on X-ray observations of the source with XMM-Newton and NuSTAR as well as optical…

High Energy Astrophysical Phenomena · Physics 2016-04-27 John A. Tomsick , Farid Rahoui , Roman Krivonos , Maica Clavel , Jay Strader , Laura Chomiuk

A new cataclysmic variable is identified as the optical counterpart of the faint and hard X-ray source RX J0757.0+6306 discovered during the ROSAT all-sky survey. Strong double-peaked emission lines bear evidence of an accretion disc via an…

The INTEGRAL and Swift hard X-ray surveys have identified a large number of new sources, among which many are proposed as Cataclysmic Variables (CVs). Here we present the first detailed study of three X-ray selected CVs, Swift J1907.3-2050,…

We analyze the first X-ray observations with XMM-Newton of RXS J070407.9+262501 and 1RXS 180340.0+401214, in order to characterize their broad-band temporal and spectral properties, also in the UV/optical domain, and to confirm them as…

XMM-Newton observations aimed at determining for the first time the broad-band X-ray properties of the faint high galactic latitude Intermediate Polar UU Col are presented. We performed X-ray timing analysis in different energy ranges of…

We report on the first pointed X-ray observations with XMM-Newton and RXTE satellites of the X-ray source RXJ0757.0+6306=HT Cam. We detect a strong 515s X-ray modulation confirming the optical photometric period found in 1998, which…

This study presents a detailed timing analyses of two cataclysmic variables (CVs), [PK2008] HalphaJ115927 and IGR J14091-610, utilizing the optical data from the Transiting Exoplanet Survey Satellite (TESS). Periods of 7.20$\pm$0.02 h,…

Solar and Stellar Astrophysics · Physics 2025-04-23 Arti Joshi

We report the results from a detailed analysis of an archival XMM-Newton observation of the X-ray source XGPS-I J183251-100106, which has been suggested as a promising magnetic cataclysmic variable candidate based on its optical properties.…

High Energy Astrophysical Phenomena · Physics 2015-06-11 C. Y. Hui , K. A. Seo , C. P. Hu , L. C. C. Lin , Y. Chou

IGR J19140+098 was discovered during the early INTEGRAL observations of GRS1915+105 in March 2003. The following observations by INTEGRAL and RXTE show significant variability on various time scales from 100s to 1ks, but no pulsations. The…

Astrophysics · Physics 2007-05-23 C. Cabanac , J. Rodriguez , P. O Petrucci , G. Henri , D. Hannikainen , P. Durouchoux

We report on observations of the X-ray pulsar IGR J16320-4751 (a.k.a. AX J1631.9-4752) performed simultaneously with INTEGRAL and XMM-Newton. We refine the source position and identify the most likely infrared counterpart. Our simultaneous…

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