Presentation is loading. Please wait.

Presentation is loading. Please wait.

20 Jan 2005 Gamma-ray Imaging Update Gordon Hurford Meudon April 2006.

Similar presentations


Presentation on theme: "20 Jan 2005 Gamma-ray Imaging Update Gordon Hurford Meudon April 2006."— Presentation transcript:

1 20 Jan 2005 Gamma-ray Imaging Update Gordon Hurford Meudon April 2006

2 250 – 500 keV 2215-2231 keV 3500-7000 keV

3 250-500 keV 250 – 500 keV 2215-2231keV RMC 4-9 RMC 6+9 RMC6+9 12 arcsec 35 arcsec 35 arcsec  35 arcsecond resolution cannot distinguish the footpoints 20 January 2005 06:44 - 06:56 128 x 128 arcsec

4 20 January 2005 06:44-06:56 TRACE 1600A at 06:52:30 UT 250 – 500 keV 30, 50, 70, 90% contours 2215-2231 keV centroid 1-  error circle

5 Comparison of Imaged and Spatially-Integrated Counts

6 28 October 2003

7 29 Oct 2003 Neutron Capture Line Imaging

8 3 Nov 2003 Neutron Capture Line Imaging

9 Imaging to Spectroscopy Comparison Imaged / Spectral NC count ratios are consistent with 1  NC line counts are from a compact source  Ions are flare-accelerated

10 3500 -7000 keV 2215 -2231 keV 1500 -2100 keV 1000 -1500 keV 550 -1000 keV 250 –500 keV 20 Jan 2005 Gamma Continuum Imaging

11 Status of 511 keV line Imaging Imaging in the 500-520 keV band is yielding weak detections with 9R and 9F. No detections with other RMCs 9F imaged flux is consistently higher than 9R At least 50% of imaged 500-520 keV flux is from continuum Continuum imaged flux is consistently higher in 9F than 9R  Off-diagonal response is important.  No useful positron annihilation line imaging yet. (Diagonal) ph/cm2/s9F9R 500-520 keV1.09+-0.200.71+-0.11 525-527 keV0.63+-0.140.37+-0.07 Imaged line flux0.46+-0.240.34+-0.13 20 January 2005 06:44 – 07:00


Download ppt "20 Jan 2005 Gamma-ray Imaging Update Gordon Hurford Meudon April 2006."

Similar presentations


Ads by Google