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Tartarus Home Tartarus at Imperial College London ASCA Sequence List
70008000 MRK 421
DETECTED

Object Information and Products

Object name : MRK 421
RA (J2000) : 11 04 27.20
Dec (J2000) : +38 12 32.0
Detection significance : 1970.9 sigma
Download Products (Full description of products)
All 70008000_v3.1_all.tar.gz Description
Imaging 70008000_v3.1_image.tar.gz Description
Spectral 70008000_v3.1_spectral.tar.gz Description
Timing 70008000_v3.1_timing.tar.gz Description


Observing Times
Elapsed (s) Exposure (s)
SIS0 84991 32769
SIS1 84895 28515
GIS2 85087 38521
GIS3 85087 38523

Observation Information

Sequence : 70008000
ASCA object name : MKN421
Start date : 10 May 1993
Start time : 03:22:53
Start MJD : 49117.14090
SIS clocking mode : 4 CCDs
SIS data mode : BRIGHT
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
jpeg gif jpeg gif jpeg gif


Veron Name
(with NED link) 		RA (J2000) Dec (J2000) Redshift Type
MARK 421 11 04 27.20 +38 12 32.0 0.031 AGN UNCLASSIFIED
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
jpeg gif 		Smooothed SIS0 detector image
jpeg gif 		79255 1485.1 77769.9 2.37e+00
SIS1 Unsmoothed SIS1 detector image
jpeg gif 		Smooothed SIS1 detector image
jpeg gif 		38775 683.3 38091.7 1.34e+00
GIS2 Unsmoothed GIS2 detector image
jpeg gif 		Smooothed GIS2 detector image
jpeg gif 		62220 1927.6 60292.4 1.57e+00
GIS3 Unsmoothed GIS3 detector image
jpeg gif 		Smooothed GIS3 detector image
jpeg gif 		66731 1889.7 64841.3 1.68e+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 		2.77 2.52 / 352 0.00e+00 8.34e-11
Full Full-band spectral fit with absorption 6.24e+20 2.93 1.50 / 351 2.79e-09 7.86e-11
Soft Soft-band spectral fit no absorption Unabsorbed
Model 		2.66 1.75 / 136 1.42e-07 5.93e-11
Soft Soft-band spectral fit with absorption 3.89e+20 2.83 1.49 / 135 1.78e-04 5.77e-11
Hard Hard-band spectral fit no absorption Unabsorbed
Model 		2.97 1.11 / 207 1.32e-01 2.20e-11
Hard Hard-band spectral fit with absorption 8.44e+20 3.00 1.11 / 206 1.37e-01 2.19e-11
Galactic NH 1.38e+20


Light Curve

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


Log File and Warnings

Log file

2005.06.21.15:25.70008000.seq

Warnings

Custom regions were used
List of warnings in log file

Missing products

All products are available


Previous Sequence
70007000
Next Sequence
70009000


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    Last Updated: Monday, 25-Jul-2005 15:15:15 EDT