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Chandra Observations of the Crab Pulsar as a Function of Pulse PhaseThe Chandra X-Ray Observatory was used to observe the Crab Nebula and its pulsar using the LETGS, i.e. the Low-Energy Transmission Grating (LETG) with the High Resolution Camera Spectroscopy detector (HRC-S). Data from the zeroth-order image was utilized to isolate the pulsar from the surrounding nebula and to measure the pulsar emission as a function of pulse phase. HRC timing problems were overcome by developing special techniques to process the data. For the first time, pulsed x-ray emission has been detected at all pulse phases, allowing us to set a new upper limit to the thermal emission from the surface of the neutron star.
Document ID
20020024143
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Weisskopf, Martin C. (NASA Marshall Space Flight Center Huntsville, AL United States)
Tennant, Allyn F. (NASA Marshall Space Flight Center Huntsville, AL United States)
Becker, Werner (Max-Planck-Inst. fuer Extraterrestrische Physik Garching, Germany)
Juda, Michael (Smithsonian Astrophysical Observatory Cambridge, MA United States)
Elsner, Ronald F. (NASA Marshall Space Flight Center Huntsville, AL United States)
Kolodziejczak, Jeffery J. (NASA Marshall Space Flight Center Huntsville, AL United States)
Murray, Stephen S. (Smithsonian Astrophysical Observatory Cambridge, MA United States)
Paerels, Frits (Columbia Univ. New York, NY United States)
Swartz, Douglas A. (Universities Space Research Association Huntsville, AL United States)
Shibazaki, Noriaki (Rikkyo Univ. Tokyo, Japan)
Whitaker, Martin C.
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Astronomy
Meeting Information
Meeting: Proceedings of the New Century of X-Ray Astronomy Conference
Location: Kanagawa
Country: Japan
Start Date: March 6, 2001
End Date: March 8, 2001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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