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71035010 MR 2251-178
DETECTED



Object Information and Products

Object name : MR 2251-178
RA (J2000) : 22 54 05.90
Dec (J2000) : -17 34 55.0
Detection significance : 605.88 sigma
Download Products (Full description of products)
All 71035010_v3.1_all.tar.gz Description
Imaging 71035010_v3.1_image.tar.gz Description
Spectral 71035010_v3.1_spectral.tar.gz Description
Timing 71035010_v3.1_timing.tar.gz Description



Observing Times
Elapsed (s) Exposure (s)
SIS0 18773 6891
SIS1 18769 6695
GIS2 23456 9774
GIS3 23456 9742

Observation Information

Sequence : 71035010
ASCA object name : MR2251-178
Start date : 16 Nov 1993
Start time : 03:03:31
Start MJD : 49307.12744
SIS clocking mode : 2 CCDs
SIS data mode : BRIGHT2
GIS3 channels : 1024
Event threshold : The effective event threshold is constant.
Link to official ASCA Data Facility processing page



GIS Sky Images and Veron 2001 Objects

GIS2 Detection Image GIS Rebinned Image Veron Objects
GIS2 image with detection regions Binned GIS image with nominal RA/Dec Smoothed GIS image with Veron objects and centroid
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Veron Name
(with NED link)
RA (J2000) Dec (J2000) Redshift Type
MR 2251-178 22 54 05.90 -17 34 55.0 0.068 SEYFERT TYPE 1.5
NPM1G-17.0499 22 53 44.10 -17 35 35.0 0.068 SEYFERT
Link to all NED objects in GIS field-of-view



Detector Images, Extraction Regions and Counts

Detector Detector Images Source
Region
Counts
Scaled
Background
Counts
Background
Subtracted
Counts
Background
Subtracted
Rate
Unsmoothed Smoothed (counts) (counts) (counts) (counts s-1)
SIS0 Unsmoothed SIS0 detector image
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Smooothed SIS0 detector image
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11627 674.4 10952.6 1.59e+00
SIS1 Unsmoothed SIS1 detector image
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Smooothed SIS1 detector image
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9038 351.1 8686.9 1.30e+00
GIS2 Unsmoothed GIS2 detector image
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Smooothed GIS2 detector image
jpeg gif
8052 366.3 7685.7 7.86e-01
GIS3 Unsmoothed GIS3 detector image
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Smooothed GIS3 detector image
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10159 341.9 9817.1 1.01e+00



Spectral Fitting Results

Energy
Band
Spectrum NH Photon
Index
Red. Chi2
/ DOF
Prob. to
Exceed
SIS0 Flux
(cm-2) (erg cm-2 s-1)
Full Full-band spectral fit no absorption Unabsorbed
Model
1.57 1.14 / 343 4.08e-02 6.56e-11
Full Full-band spectral fit with absorption 5.00e+20 1.66 1.07 / 342 1.91e-01 6.34e-11
Soft Soft-band spectral fit no absorption Unabsorbed
Model
1.43 1.17 / 131 8.71e-02 1.99e-11
Soft Soft-band spectral fit with absorption 0.00e+00 1.43 1.18 / 130 7.79e-02 1.99e-11
Hard Hard-band spectral fit no absorption Unabsorbed
Model
1.63 0.93 / 203 7.71e-01 4.50e-11
Hard Hard-band spectral fit with absorption 0.00e+00 1.63 0.93 / 202 7.55e-01 4.50e-11
Galactic NH 2.70e+20



Light Curve

Full-band SIS light curve Combined SIS0 + SIS1 0.5-10 keV light curve



Log File and Warnings

Log file

2005.07.08.08:00.71035010.seq

Warnings

Some unscreened SIS events files were hidden
List of warnings in log file

Missing products

All products are available



Previous Sequence
71035000
Next Sequence
71035020


FirstGov logo + Privacy Policy and Important Notices NASA Curator: Jane Turner
NASA Official: Phil Newman
Last Updated: Monday, 25-Jul-2005 14:58:28 EDT