scholarly journals Upper Limits on Periodic, Pulsed Radio Emission from the X-Ray Point Source in Cassiopeia A

2001 ◽  
Vol 547 (1) ◽  
pp. L41-L44 ◽  
Author(s):  
M. A. McLaughlin ◽  
J. M. Cordes ◽  
A. A. Deshpande ◽  
B. M. Gaensler ◽  
T. H. Hankins ◽  
...  
Keyword(s):  
Radio Emission ◽  
Point Source ◽  
X Ray ◽  
Cassiopeia A ◽  
Upper Limits

scholarly journals Soft X-Ray Observations of Supernova Remnants

1974 ◽  
Vol 3 ◽  
pp. 565-572
Author(s):  
J. C. Zarnecki ◽  
J. L. Culhane ◽  
A. C. Fabian ◽  
C. G. Rapley ◽  
R.L.F. Boyd ◽  
...  
Keyword(s):  
Satellite Data ◽  
Supernova Remnants ◽  
Low Energy ◽  
X Ray ◽  
Cassiopeia A ◽  
Upper Limits

AbstractObservations of a number of supernova remnants have been carried out with the low energy X-ray telescope on the Copernicus satellite. Data are presented on the X-ray structure of the remnants Cassiopeia A and Puppis-A. Marginal detections or new upper limits are reported for the remnants IC443, DR4, MSH15-52A, Downes 83, Downes 84 and 3C392.

Search for a Near‐Infrared Counterpart to the Cassiopeia A X‐Ray Point Source

2001 ◽  
Vol 558 (1) ◽  
pp. 270-275 ◽  
Author(s):  
D. L. Kaplan ◽  
S. R. Kulkarni ◽  
S. S. Murray
Keyword(s):  
Point Source ◽  
Near Infrared ◽  
X Ray ◽  
Cassiopeia A

scholarly journals The Central X‐Ray Point Source in Cassiopeia A

2001 ◽  
Vol 548 (2) ◽  
pp. 800-810 ◽  
Author(s):  
Deepto Chakrabarty ◽  
Michael J. Pivovaroff ◽  
Lars E. Hernquist ◽  
Jeremy S. Heyl ◽  
Ramesh Narayan
Keyword(s):  
Point Source ◽  
X Ray ◽  
Cassiopeia A

scholarly journals UPPER LIMITS ON PULSED RADIO EMISSION FROM THE 6.85 s X-RAY PULSAR XTE J0103–728 IN THE SMALL MAGELLANIC CLOUD

2009 ◽  
Vol 696 (1) ◽  
pp. 574-579 ◽  
Author(s):  
Fronefield Crawford ◽  
Duncan R. Lorimer ◽  
Brian M. Devour ◽  
Brian P. Takacs ◽  
Vladislav I. Kondratiev
Keyword(s):  
Radio Emission ◽  
Magellanic Cloud ◽  
Small Magellanic Cloud ◽  
X Ray ◽  
Upper Limits

scholarly journals A Comparison of X-Ray and Radio Emission from the Supernova Remnant Cassiopeia A

1996 ◽  
Vol 466 ◽  
pp. 309 ◽  
Author(s):  
Jonathan W. Keohane ◽  
Lawrence Rudnick ◽  
Martha C. Anderson
Keyword(s):  
Radio Emission ◽  
Supernova Remnant ◽  
X Ray ◽  
Cassiopeia A

XRMF applications of a monolithic, polycapillary, focusing x-ray optic

1996 ◽  
Vol 54 ◽  
pp. 240-241
Author(s):  
D. A. Carpenter ◽  
Ning Gao ◽  
G. J. Havrilla
Keyword(s):  
Trace Elements ◽  
Point Source ◽  
Focal Spot ◽  
Fluorescence Analysis ◽  
X Rays ◽  
Focal Distance ◽  
Spot Diameter ◽  
X Ray ◽  
Focal Spot Diameter

A monolithic, polycapillary, x-ray optic was adapted to a laboratory-based x-ray microprobe to evaluate the potential of the optic for x-ray micro fluorescence analysis. The polycapillary was capable of collecting x-rays over a 6 degree angle from a point source and focusing them to a spot approximately 40 µm diameter. The high intensities expected from this capillary should be useful for determining and mapping minor to trace elements in materials. Fig. 1 shows a sketch of the capillary with important dimensions.The microprobe had previously been used with straight and with tapered monocapillaries. Alignment of the monocapillaries with the focal spot was accomplished by electromagnetically scanning the focal spot over the beveled anode. With the polycapillary it was also necessary to manually adjust the distance between the focal spot and the polycapillary.The focal distance and focal spot diameter of the polycapillary were determined from a series of edge scans.

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