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Related papers: Pre-Supernova Ring Around PSR0540-69

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We report the discovery of 31.18 ms pulsations from the INTEGRAL source IGR J14003-6326 using the Rossi X-ray Timing Explorer (RXTE). This pulsar is most likely associated with the bright Chandra X-ray point source lying at the center of…

High Energy Astrophysical Phenomena · Physics 2014-11-20 M. Renaud , V. Marandon , E. V. Gotthelf , J. Rodriguez , R. Terrier , F. Mattana , F. Lebrun , J. A. Tomsick , R. N. Manchester

We present a model for the Galactic supernova remnant (SNR) VRO 42.05.01, suggesting that its intriguing morphology can be explained by a progenitor model of a supersonically moving, mass losing star. The mass outflows of the progenitor…

Astrophysics of Galaxies · Physics 2019-09-20 A. Chiotellis , P. Boumis , S. Derlopa , W. Steffen

We have discovered a long radio trail at 843 MHz which is apparently associated with middle age pulsar PSR J1509-5850. The radio trail has a length of ~7 arcmin. In X-rays, Chandra observations of PSR J1509-5850 reveal an associated X-ray…

Astrophysics · Physics 2009-11-13 C. Y. Hui , W. Becker

We suggest that the unique X-ray source 1E161348-5055 at the centre of the supernova remnant RCW 103 consists of a neutron star in close orbit with a low mass main sequence star. The time signature of 6.67 hr is interpreted as the neutron…

Astrophysics · Physics 2009-11-13 Fabio Pizzolato , Monica Colpi , Andrea De Luca , Sandro Mereghetti , Andrea Tiengo

A scenario of the formation of isolated X-ray pulsars is discussed with an application to one of the best studied objects of this class 1E 161348-5055. This moderately luminous, 10^33 - 10^35 erg/s, pulsar with a relatively soft spectrum,…

High Energy Astrophysical Phenomena · Physics 2015-01-27 N. R. Ikhsanov , V. Yu. Kim , N. G. Beskrovnaya

G290.1-0.8 (MSH 11-61A) is a supernova remnant (SNR) whose X-ray morphology is centrally bright. However, unlike the class of X-ray composite SNRs whose centers are dominated by nonthermal emission, presumably driven by a central pulsar, we…

Astrophysics · Physics 2009-11-07 Patrick Slane , Randall K. Smith , John P. Hughes , Robert Petre

We present the results of deep ASCA observations of two shell-like radio supernova remnants (SNRs) located in the direction to the Galactic center (GC) region. Unlike the radio morphology, G359.1-0.5 shows center-filled X-rays with…

Astrophysics · Physics 2015-06-24 Aya Bamba , Jun Yokogawa , Masaaki Sakano , Katsuji Koyama

We present and discuss new visual wavelength-range observations of the inner regions of the supernova remnant SNR 0540-69.3 that is located in the Large Magellanic Cloud (LMC). These observations provide us with more spatial and spectral…

Astrophysics of Galaxies · Physics 2013-06-18 C. Sandin , P. Lundqvist , N. Lundqvist , C. -I. Björnsson , G. Olofsson , Yu. A. Shibanov

G21.5-0.9 is a plerionic supernova remnant (SNR) whose properties hint at the presence of a pulsar -- yet no pulsations have been found at any wavelength. Early observations with Chandra led to the discovery of an extended component, making…

Astrophysics · Physics 2007-05-23 S. Safi-Harb , I. M. Harrus , R. Petre , G. G. Pavlov , A. B. Koptsevitch , D. Sanwal

Aims. We present an X-ray study of the supernova remnant SNR J0533-7202 in the Large Magellanic Cloud (LMC) and determine its physical characteristics based on its X-ray emission. Methods. We observed SNR J0533-7202 with XMM-Newton…

High Energy Astrophysical Phenomena · Physics 2015-07-01 P. J. Kavanagh , M. Sasaki , E. T. Whelan , P. Maggi , F. Haberl , L. M. Bozzetto , M. D. Filipovic , E. J. Crawford

The candidate supernova remnant (SNR) G118.4+37.0 (Calvera's SNR), discovered as a faint radio ring at high Galactic latitude and coincident with extended Fermi/LAT gamma-ray emission, is likely associated to the X-ray pulsar 1RXS…

High Energy Astrophysical Phenomena · Physics 2025-09-03 Emanuele Greco , Michela Rigoselli , Sandro Mereghetti , Fabrizio Bocchino , Marco Miceli , Vincenzo Sapienza , Salvatore Orlando

Using the Chandra X-ray Observatory we have discovered a diffuse, center-filled region of hard X-ray emission within the young, oxygen-rich supernova remnant (SNR) G292.0+1.8. Near the peak of this diffuse emission lies a point-like source…

We have observed the remnant of supernova SN~1987A (SNR~1987A), located in the Large Magellanic Cloud (LMC), to search for periodic and/or transient radio emission with the Parkes 64\,m-diameter radio telescope. We found no evidence of a…

High Energy Astrophysical Phenomena · Physics 2018-06-27 S. -B. Zhang , S. Dai , G. Hobbs , L. Staveley-Smith , R. N. Manchester , C. J. Russell , G. Zanardo , X. -F. Wu

We have investigated the molecular environment of the semicircular composite supernova remnant (SNR) 3C396 and performed a Chandra spatially resolved thermal X-ray spectroscopic study of this young SNR. With our CO millimeter observations,…

Astrophysics of Galaxies · Physics 2015-05-20 Yang Su , Yang Chen , Ji Yang , Bon-Chul Koo , Xin Zhou , Deng-Rong Lu , Il-Gyo Jeong , Tracey DeLaney

Context: We study the X-ray emission of the Galactic supernova remnant (SNR) CTB 109 (G109.1-1.0), which is well-known for its enigmatic half-shell morphology both in radio and in X-rays and is associated with the anomalous X-ray pulsar…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Manami Sasaki , Paul P. Plucinsky , Terrance J. Gaetz , Fabrizio Bocchino

We report the discovery of a young pulsar associated with the supernova remnant G21.5-0.9, using the Giant Metrewave Radio Telescope (GMRT) located near Pune, India. Discovered at a frequency of 610 MHz, J1833-1034 has a period of 61.86 ms…

Astrophysics · Physics 2007-05-23 Y. Gupta , D. Mitra , D. A. Green , A. Acharyya

We investigate the spatial distribution of the physical and chemical properties of the hot X-ray emitting plasma of the supernova remnant IC 443, in order to get important constraints on its ionization stage, on the progenitor supernova…

Astrophysics · Physics 2009-11-13 Eleonora Troja , Fabrizio Bocchino , Marco Miceli , Fabio Reale

We present new radio observations of the recently identified, young Galactic supernova remnant (SNR) RX J0852.0-4622 (G266.2-01.2) made at 1.40 GHz with a resolution of 14.9 arcmin. These results, along with other radio observations from…

Astrophysics · Physics 2007-05-23 A. R. Duncan , D. A. Green

Supernova remnants (SNRs) are observable for about 6-15x10^4 years before they fade into the Galactic interstellar medium. With a Galactic supernova rate of approximately two per century, we can expect to have of the order of 1200 SNRs in…

High Energy Astrophysical Phenomena · Physics 2021-04-07 W. Becker , N. Hurley-Walker , Ch. Weinberger , L. Nicastro , M. G. F. Mayer , A. Merloni , J. Sanders

We present the results of new Australia Telescope Compact Array (ATCA) observations of one of the largest supernova remnants, SNR J0450-709, in the Local Group of galaxies. We found that this Large Magellanic Cloud (LMC) ob ject exhibits a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 K. O. Cajko , E. J. Crawford , M. D. Filipović
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