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ASCA
Sequence List
75045010
NGC 4639
DETECTED
Object Information and Products
Object name
:
NGC 4639
RA (J2000)
:
12 42 52.50
Dec (J2000)
:
+13 15 25.0
Detection significance
:
35.05 sigma
Download Products
(Full description of products)
All
75045010_v3.1_all.tar.gz
Description
Imaging
75045010_v3.1_image.tar.gz
Description
Spectral
75045010_v3.1_spectral.tar.gz
Description
Timing
75045010_v3.1_timing.tar.gz
Description
Observing Times
Elapsed (s)
Exposure (s)
SIS0
77408
34243
SIS1
77408
31779
GIS2
77652
38106
GIS3
77652
38126
Observation Information
Sequence
:
75045010
ASCA object name
:
NGC_4639_N2
Start date
:
23 Dec 1997
Start time
:
23:03:30
Start MJD
:
50805.96077
SIS clocking mode
:
1 CCD
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
jpeg
gif
jpeg
gif
jpeg
gif
Veron Name
(with NED link)
RA (J2000)
Dec (J2000)
Redshift
Type
NGC 4639
12 42 52.50
+13 15 25.0
0.001
SEYFERT TYPE 1
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
jpeg
gif
jpeg
gif
2051
821.4
1229.6
3.59e-02
SIS1
jpeg
gif
jpeg
gif
1597
639.5
957.5
3.01e-02
GIS2
jpeg
gif
jpeg
gif
1704
958.1
745.9
1.96e-02
GIS3
jpeg
gif
jpeg
gif
1856
953.2
902.8
2.37e-02
Spectral Fitting Results
Energy
Band
Spectrum
N
H
Photon
Index
Red. Chi
2
/ DOF
Prob. to
Exceed
SIS0 Flux
(cm
-2
)
(erg cm
-2
s
-1
)
Full
Unabsorbed
Model
1.53
0.98 / 183
5.62e-01
1.55e-12
Full
1.27e+21
1.77
0.95 / 182
6.77e-01
1.40e-12
Soft
Unabsorbed
Model
1.22
1.03 / 88
4.06e-01
4.67e-13
Soft
1.51e+21
1.82
1.02 / 87
4.29e-01
4.41e-13
Hard
Unabsorbed
Model
1.62
0.90 / 86
7.43e-01
8.75e-13
Hard
2.01e+20
1.63
0.91 / 85
7.17e-01
8.75e-13
Galactic N
H
2.35e+20
Light Curve
Combined SIS0 + SIS1 0.5-10 keV light curve
Log File and Warnings
Log file
2005.06.30.18:42.75045010.seq
Warnings
No warnings
Missing products
All products are available
Previous Sequence
75045000
Next Sequence
75047000
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Curator: Jane Turner
NASA Official: Phil Newman
Last Updated: Monday, 25-Jul-2005 15:18:43 EDT