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相关论文: The Pulsar Wind Nebula of G11.2-0.3

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We present an X-ray and radio study of the wind nebula surrounding the central pulsar PSR J1811-1925 in the supernova remnant G11.2-0.3. Using high resolution data obtained with the Chandra X-ray observatory and with the VLA radio telescope…

We present a high-resolution radio study of the supernova remnant (SNR) G11.2-0.3 using archival VLA data. Spectral tomography is performed to determine the properties of this composite-type SNR's individual components, which have only…

天体物理学 · 物理学 2009-11-07 Cindy Tam , Mallory S. E. Roberts , Victoria M. Kaspi

We report on sensitive new 1.4-GHz VLA radio observations of the pulsar wind nebula G21.5-0.9, powered by PSR J1833-1034, and its environs. Our observations were targeted at searching for the radio counterpart of the shell-like structure…

星系天体物理 · 物理学 2015-05-19 Michael F. Bietenholz , Heather Matheson , Samar Safi-Harb , Crystal Brogan , Norbert Bartel

We present a study of the composite supernova remnant G0.9+0.1 based on observations by XMM-Newton. The EPIC spectrum shows diffuse X-ray emission from the region corresponding to the radio shell. The X-ray spectrum of the whole Pulsar Wind…

天体物理学 · 物理学 2009-11-07 D. Porquet , A. Decourchelle , R. S. Warwick

We present a spatially resolved spectroscopic analysis of the young Galactic supernova remnant Kes 75 (SNR G29.7-0.3) using the Chandra X-ray Observatory. Kes 75 is one of an increasing number of examples of a shell-type remnant with a…

天体物理学 · 物理学 2009-11-07 David J. Helfand , Benjamin F. Collins , E. V. Gotthelf

We present new X-ray imaging and spectroscopy of a composite supernova remnant G327.1-1.1 using the Chandra and XMM-Newton X-ray observatories. G327.1-1.1 has an unusual morphology consisting of a symmetric radio shell and an off center…

天体物理学 · 物理学 2011-02-11 Tea Temim , Patrick Slane , B. M. Gaensler , John P. Hughes , Eric van der Swaluw

We have conducted a radio study at 3.6, 6 and 20 cm using ATCA and VLA and reprocessed XMM-Newton and Chandra data of the pulsar wind nebula (PWN) in the supernova remnant (SNR) G0.9+0.1. The new observations revealed that the morphology…

天体物理学 · 物理学 2009-11-13 Gloria Dubner , Elsa Giacani , Anne Decourchelle

Aims: We study the supernova remnant G20.0-0.2 and its surroundings in order to look for the high energy counterpart of the radio nebula and to find evidence of interaction between the shock front and the interstellar medium. Methods: We…

星系天体物理 · 物理学 2015-06-15 Alberto Petriella , Sergio Paron , Elsa Giacani

We have observed the young Galactic supernova remnant Kes 75 with the Chandra X-ray Observatory. This object is one of an increasing number of examples of a shell-type remnant with a central extended radio core harboring a pulsar. Here we…

天体物理学 · 物理学 2007-05-23 B. F. Collins , E. V. Gotthelf , D. J. Helfand

Recent X-ray observations have proved to be very effective in detecting previously unknown supernova remnant shells around pulsar wind nebulae (PWNe), and in these cases the characteristics of the shell provide further clues on the…

高能天体物理现象 · 物理学 2015-05-18 F. Bocchino , R. Bandiera , J. Gelfand

We present a Chandra X-ray observation of G12.82-0.02, a shell-like radio supernova remnant coincident with the TeV gamma-ray source HESS J1813-178. We resolve the X-ray emission from the co-located ASCA source into a compact object…

天体物理学 · 物理学 2008-11-26 E. V. Gotthelf , D. J. Helfand

We report the discovery of a partial ~2deg. diameter non-thermal radio shell coincident with Taz, the pulsar wind nebula (PWN) in the error box of the apparently variable gamma-ray source 3EG J1809-2328. We propose that this radio shell is…

天体物理学 · 物理学 2009-11-13 Mallory S. E. Roberts , Crystal L. Brogan

We present in this paper the hard X-ray view of the pulsar wind nebula in G11.2-0.3 and its central pulsar PSR J1811-1925 as seen by NuSTAR. We complement the data with Chandra for a more complete picture and confirm the existence of a…

高能天体物理现象 · 物理学 2020-03-04 K. K. Madsen , C. L. Fryer , B. W. Grefenstette , L. A. Lopez , S. Reynolds , A. Zoglauer

We report the discovery of pulsed X-ray emission from the compact object CXOU J112439.1-591620 within the Galactic supernova remnant G292.0+1.8 using the High Resolution Camera on the Chandra X-Ray Observatory. The X-ray period is…

天体物理学 · 物理学 2007-05-23 John P. Hughes , Robert B. Friedman , Patrick Slane , Sangwook Park

We have observed pulsar wind nebulae in the three supernova remnants G11.2-0.3, G16.7+0.1, and G29.7-0.3 at 89 GHz with the Berkeley-Illinois-Maryland Association Array, measuring total flux densities of two of them for comparison with…

天体物理学 · 物理学 2009-11-10 D. C. -J. Bock , B. M. Gaensler

We report here on the first pointed X-ray observation of the supernova remnant (SNR) G330.2+1.0. The X-ray morphology is characterized by an extended shell. Its X-ray spectrum is well represented by a single power-law function with a photon…

天体物理学 · 物理学 2015-06-24 K. Torii , H. Uchida , K. Hasuike , H. Tsunemi , Y. Yamaguchi , S. Shibata

We present results of a 400-ks Chandra observation of the young shell supernova remnant (SNR) G11.2-0.3, containing a pulsar and pulsar-wind nebula (PWN). We measure a mean expansion rate for the shell since 2000 of 0.0277+/-0.0018% per yr,…

高能天体物理现象 · 物理学 2016-03-23 Kazimierz J. Borkowski , Stephen P. Reynolds , Mallory S. E. Roberts

The supernova remnant N 157B contains a pulsar and three distinct synchrotron components with rather unusual properties. 1) A somewhat irregular elliptical pulsar wind nebula (PWN) visible in both X-ray and radio wavelengths. The nebula is…

天体物理学 · 物理学 2007-05-23 ohn R. Dickel , Shiya Wang

We present a polarimetric study of the pulsar wind nebula (PWN) in supernova remnant G21.5$-$0.9 using archival Very Large Array (VLA) data. The rotation measure (RM) map of the PWN shows a symmetric pattern that aligns with the presumed…

高能天体物理现象 · 物理学 2022-05-11 Paul C. W. Lai , C. -Y. Ng , Niccolo' Bucciantini

We present a deep Chandra observation of the shell supernova remnant G32.4+0.1, whose featureless X-ray spectrum has led to its classification as an X-ray synchrotron-dominated supernova remnant (SNR). We find a partial shell morphology…

高能天体物理现象 · 物理学 2024-02-19 Stephen P. Reynolds , Kazimierz J. Borkowski
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