Journal ArticleDOI
Discovery of Spatial and Spectral Structure in the X-Ray Emission from the Crab Nebula
Martin C. Weisskopf,J. Jeff Hester,Allyn F. Tennant,Ronald F. Elsner,Norbert S. Schulz,Herman L. Marshall,Margarita Karovska,Joy S. Nichols,Douglas A. Swartz,Jeffery J. Kolodziejczak,Stephen L. O'Dell +10 more
TLDR
Zeroth-order images with the High-Energy Transmission Grating (HETG) readout by the Advanced CCD Imaging Spectrometer spectroscopy array (ACIS-S) show a striking richness of X-ray structure at a resolution comparable to that of the best ground-based visible-light observations.Abstract:
The Chandra X-ray Observatory observed the Crab Nebula and Pulsar during orbital calibration. Zeroth-order images with the High-Energy Transmission Grating (HETG) read-out by the Advanced CCD Imaging Spectrometer spectroscopy array (ACIS-S) show a striking richness of x-ray structure, at a resolution comparable to that of the best ground-based visible-light observations. The HETG--ACIS-S images reveal, for the first time, an x-ray inner ring within the x-ray torus, the suggestion of a hollow-tube structure for the torus, and x-ray knots along the inner ring and (perhaps) along the inward extension of the x-ray jet. Although complicated by instrumental effects and the brightness of the Crab Nebula, the spectrometric analysis shows systematic variations of the x-ray spectrum throughout the Nebula.read more
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The Reuven Ramaty High-Energy Solar Spectroscopic Imager (Rhessi)
Robert P. Lin,Brian R. Dennis,G. J. Hurford,David M. Smith,Alex Zehnder,Peter Harvey,D. W. Curtis,David H. Pankow,Paul Turin,Manfred Bester,André Csillaghy,M. Lewis,Norman W. Madden,H. F. van Beek,M. Appleby,T. Raudorf,J. M. McTiernan,Reuven Ramaty,E. J. Schmahl,Richard A. Schwartz,Säm Krucker,R. Abiad,T. Quinn,Peter Berg,M. Hashii,R. Sterling,R. Jackson,R. Pratt,Robert Campbell,D. Malone,D. Landis,Christopher Barrington-Leigh,S. Slassi-Sennou,C.P. Cork,David C. Clark,D. Amato,Larry E. Orwig,Robert F. Boyle,I. S. Banks,K. Shirey,Anne K. Tolbert,Dominic M. Zarro,Frank Snow,Knud Thomsen,Reinhold Henneck,A. Mchedlishvili,P. Ming,M. D. Fivian,John Jordan,Richard Wanner,Jerry Crubb,J. Preble,M. Matranga,Arnold O. Benz,Hugh S. Hudson,Richard C. Canfield,Gordon D. Holman,Carol Jo Crannell,Takeo Kosugi,A. G. Emslie,N. Vilmer,John C. Brown,Christopher M. Johns-Krull,Markus J. Aschwanden,Thomas R. Metcalf,A. J. Conway +65 more
TL;DR: RHESSI as discussed by the authors is a Principal Investigator (PI) mission, where the PI is responsible for all aspects of the mission except the launch vehicle, and is designed to investigate particle acceleration and energy release in solar flares, through imaging and spectroscopy of hard X-ray/gamma-ray continua emitted by energetic electrons, and of gamma-ray lines produced by energetic ions.
Journal ArticleDOI
An overview of the performance and scientific results from the Chandra X-ray Observatory (CXO)
Martin C. Weisskopf,B. Brinkman,Claude R. Canizares,Gordon P. Garmire,Stephen S. Murray,L. van Speybroeck +5 more
TL;DR: The Chandra X-Ray Observatory (CXO) as discussed by the authors is the x-ray component of NASA's Great Observatories and was launched on 1999, July 23 by the Space Shuttle Columbia.
Journal ArticleDOI
The evolution and structure of pulsar wind nebulae
Bryan Gaensler,Patrick Slane +1 more
TL;DR: In this article, the authors describe how pulsars steadily dissipate their rotational energy via relativistic winds. Confinement of these outflows generates luminous pulsar wind nebulae, seen across the electromagnetic spectrum in...
Journal ArticleDOI
Monte Carlo Simulator and Ancillary Response Generator of Suzaku XRT/XIS System for Spatially Extended Source Analysis
Yoshitaka Ishisaki,Yoshitomo Maeda,Ryuichi Fujimoto,Masanobu Ozaki,Ken Ebisawa,Tadayuki Takahashi,Yoshihiro Ueda,Yasushi Ogasaka,Andrew Ptak,Koji Mukai,Koji Mukai,Kenji Hamaguchi,Kenji Hamaguchi,M. Hirayama,M. Hirayama,Taro Kotani,Hidetoshi Kubo,Ryo Shibata,Masatoshi Ebara,Akihiro Furuzawa,Ryo Iizuka,Hajime Inoue,Hideyuki Mori,Shunsaku Okada,Yushi Yokoyama,Hironori Matsumoto,Hiroshi Nakajima,Hiroya Yamaguchi,Naohisa Anabuki,Noriaki Tawa,Makoto Nagai,Satoru Katsuda,Kiyoshi Hayashida,Aya Bamba,Eric D. Miller,Kosuke Sato,Noriko Y. Yamasaki +36 more
TL;DR: In this article, a framework for the Monte-Carlo simulation of X-Ray Telescopes (XRT) and X-ray Imaging Spectrometers (XIS) onboard Suzaku was developed for the scientific analysis of spatially and spectroscopically complex celestial sources.
Journal ArticleDOI
Super-luminous Type Ic Supernovae: Catching a Magnetar by the Tail
Cosimo Inserra,Stephen J. Smartt,Anders Jerkstrand,Stefano Valenti,Morgan Fraser,Darryl Wright,K. W. Smith,Ting-Wan Chen,Rubina Kotak,Andrea Pastorello,Matt Nicholl,Fabio Bresolin,R. P. Kudritzki,Stefano Benetti,M. T. Botticella,William S. Burgett,K. C. Chambers,Mattias Ergon,H. Flewelling,Johan P. U. Fynbo,S. Geier,Klaus W. Hodapp,D. A. Howell,D. A. Howell,M. E. Huber,Nick Kaiser,Giorgos Leloudas,Giorgos Leloudas,L. Magill,E. A. Magnier,M. McCrum,Nigel Metcalfe,P. A. Price,Armin Rest,Jesper Sollerman,W. Sweeney,Francesco Taddia,S. Taubenberger,John L. Tonry,Richard J. Wainscoat,Christopher Waters,David Young +41 more
TL;DR: In this paper, the authors report extensive observational data for five of the lowest redshift super-Luminous Type Ic Supernovae (SL-SNe Ic) discovered to date, namely PTF10hgi, SN2011ke, PTF11rks, SN 2011kf and SN2012il.
References
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Journal ArticleDOI
Confinement of the Crab pulsar's wind by its supernova remnant
TL;DR: In this article, a steady state, spherically symmetric, magnetohydrodynamic model of the Crab nebula is constructed, where a highly relativistic positronic positronic pulsar wind is terminated by a strong MHD shock that decelerates the flow and increases its pressure to match boundary conditions imposed by the recently discovered supernova remnant that surrounds the nebula.
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Astronomical Data Analysis Software and Systems X
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The Origin of the Magnetic Field and Relativistic Particles in the Crab Nebula
M. J. Rees,James E. Gunn +1 more
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Magnetically Striped Relativistic Magnetohydrodynamic Winds: The Crab Nebula Revisited
TL;DR: In this paper, a simple model of an initially high-sigma striped MHD wind is developed which describes the reconnection annihilation of the opposite polarity stripes as the wind flows radially outward.
Journal ArticleDOI
WFPC2 studies of the Crab nebula. I. HST and ROSAT imaging of the synchrotron nebula
J. Jeff Hester,Paul A. Scowen,Ravi Sankrit,Christopher J. Burrows,John S. Gallagher,Jon A. Holtzman,Alan M. Watson,John T. Trauger,Gilda E. Ballester,Stefano Casertano,John Clarke,David Crisp,Robin W. Evans,Richard E. Griffiths,John G. Hoessel,John Krist,Roger Lynds,Jeremy Mould,Earl J. O'Neil,Karl R. Stapelfeldt,James A. Westphal +20 more
TL;DR: In this article, images of the Crab synchrotron nebula obtained with the Wide Field and Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope are compared with ROSAT HRI images, and with 0':5 resolution Canada-France-Hawaii Telescope (CFHT) images previously published by van den Bergh & Pritchet (1989).