Monitoring of the Crab Nebula with Chandra and Other Observatories Including HST
- Weisskopf, Martin C.
- November 18, 2014.
- Physical Description:
- 1 electronic document
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- Subsequent to the detections AGILE and Fermi/LAT of the gammaray flares from the Crab Nebula in the fall of 2010, this team has been monitoring the XRay emission from the Crab on a regular basis. XRay observations have taken place typically once per month when viewing constraints allow and more recently four times per year. There have been notable exceptions, e.g. in April of 2011 and March 2013 when we initiated a set of Chandra Target of opportunity observations in conjunction with bright gammaray flares. For much of the time regular HST observations were made in conjunction with the Chandra observations. The aim of this program to further characterize, in depth, the XRay and optical variations that take place in the nebula, and by so doing determine the regions which contribute to the harder Xray variations and, if possible, determine the precise location within the Nebula of the origin of the gammaray flares. As part of this project members of the team have developed Singular Value Decomposition techniques to sequences of images in order to more accurately characterize features. The current status of the project will be presented highlighting studies of the inner knot and possible correlations with the flares.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20150002577.
15 Years of Science with Chandra Symposium; 18-21 Nov. 2014; Boston, MA; United States.
- No Copyright.
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