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Tartarus Home Tartarus at Imperial College London ASCA Sequence List
75015000 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 : 1723.45 sigma
Download Products (Full description of products)
All 75015000_v3.1_all.tar.gz Description
Imaging 75015000_v3.1_image.tar.gz Description
Spectral 75015000_v3.1_spectral.tar.gz Description
Timing 75015000_v3.1_timing.tar.gz Description


Observing Times
Elapsed (s) Exposure (s)
SIS0 18624 8313
SIS1 18592 8025
GIS2 18688 10240
GIS3 18688 10304

Observation Information

Sequence : 75015000
ASCA object name : MKN421_N2
Start date : 29 Apr 1997
Start time : 01:45:19
Start MJD : 50567.07314
SIS clocking mode : 1 CCD
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 		79731 3452.2 76278.8 9.18e+00
SIS1 Unsmoothed SIS1 detector image
jpeg gif 		Smooothed SIS1 detector image
jpeg gif 		62166 1650.8 60515.2 7.54e+00
GIS2 Unsmoothed GIS2 detector image
jpeg gif 		Smooothed GIS2 detector image
jpeg gif 		41236 1037.9 40198.1 3.93e+00
GIS3 Unsmoothed GIS3 detector image
jpeg gif 		Smooothed GIS3 detector image
jpeg gif 		51855 1007.7 50847.3 4.93e+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 		2.35 7.46 / 324 0.00e+00 2.80e-10
Full Full-band spectral fit with absorption 1.53e+21 2.69 1.33 / 323 6.87e-05 2.48e-10
Soft Soft-band spectral fit no absorption Unabsorbed
Model 		2.04 4.86 / 109 0.00e+00 1.58e-10
Soft Soft-band spectral fit with absorption 1.34e+21 2.62 1.75 / 108 2.48e-06 1.48e-10
Hard Hard-band spectral fit no absorption Unabsorbed
Model 		2.69 0.92 / 206 7.85e-01 1.00e-10
Hard Hard-band spectral fit with absorption 2.71e+21 2.80 0.90 / 205 8.44e-01 9.87e-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

2005.07.14.21:59.75015000.seq

Warnings

No warnings

Missing products

All products are available


Previous Sequence
75014000
Next Sequence
75015010


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    Last Updated: Monday, 25-Jul-2005 15:13:51 EDT