|
| |
| G31.9+0.0
Common Name: 3c391 Distance: 8kpc(Chen et al 2004)Center of X-ray emission (J2000): ( 18 49 27.5, 00 56 37.3 )X-ray size: 7.4'x6'Description: | |
| Not available | 
|
Radio | X-Ray |
- Radio Images Page: not availabe
|
| Summary of Chandra Observations
|
Sequence | Obs. ID | Detectors Used | Exposure uf
(ks) | Exposure f
(ks) | Date
Observed | Aimpoint (J2000)
(RA, Dec) | | 500236
| 2786
| ACIS-235678
| 60.9 | 60.4 | 2002-08-03 | ( 18 49 28.3, 00 56 15.0 ) |
|
 | Exposureuf => Exposure time of unfiltered event file
Exposuref => Exposure time of filtered event file | |
|
|
| Chandra Event File
|
 Netscape users, "Shift + left mouse button" will download file | |
Obs. ID | Event 2 FITS File
(un-filtered) | Event 2 FITS File
(filtered) | AUX file
(asol, badpix etc.) | | 2786 | 34.8 MB | 15.6 MB | 16.3 MB |
|
| Chandra Counts and Fluxes
|
Region | Energy Range
(keV) | Signal
(counts) | Rate
(counts s-1) | FabsX
(ergs cm-2s-1) | FX
(ergs cm-2s-1) | LX
(ergs s-1) | | total | 0.3 - 10.0 | 6.542e+04 | 1.084e+00 | 7.03e-12 | 6.23e-10 | 4.75e+36 |
| 0.3 - 2.1 | 5.174e+04 | 8.570e-01 | 3.49e-12 | 6.17e-10 | 4.70e+36 |
| 2.1 - 10.0 | 1.394e+04 | 2.310e-01 | 3.56e-12 | 6.50e-12 | 4.96e+34 |
|
| NH = 3.1(1022 cm-2) Assumed distance: 8kpc (Chen et al 2004) |
|
| Chandra Images
|
| Images in Several Energy BandsTrue Color ImageEquivalent Width Map
|
Chandra Spectra | |
| Spectra of Several Regions
|
Other Wavelengths | |
| Survey Missions
|
Nearby Sources | |
Obs. ID | Position (J2000) | Size | Net Count | Count rate | Note | | 2786 | |
| ( 18 48 40.2, -1 00 27.8 ) | < 24.1" | 36.5 | 6.00e-04 | |
| ( 18 48 41.2, 00 53 22.0 ) | < 24.4" | 64.2 | 1.05e-03 | |
| ( 18 48 52.5, 00 56 57.8 ) | < 8.1" | 332.0 | 5.45e-03 | |
| ( 18 48 52.6, 00 56 57.6 ) | < 7.7" | 327.0 | 5.37e-03 | |
| ( 18 48 58.1, -1 12 02.4 ) | < 40.1" | 315.0 | 5.18e-03 | |
| ( 18 48 58.8, 00 50 27.0 ) | < 13.5" | 164.0 | 2.69e-03 | |
| ( 18 48 59.1, -1 07 15.6 ) | < 22.4" | 92.4 | 1.52e-03 | |
| ( 18 48 59.9, -1 00 08.3 ) | < 6.3" | 36.2 | 5.95e-04 | |
| ( 18 49 05.4, 00 49 29.3 ) | < 13.0" | 228.0 | 3.75e-03 | |
| ( 18 49 05.5, -1 01 39.3 ) | < 6.7" | 18.4 | 3.02e-04 | |
| ( 18 49 09.6, 00 59 04.2 ) | < 3.7" | 74.3 | 1.22e-03 | |
| ( 18 49 11.4, -1 01 03.0 ) | < 4.7" | 23.4 | 3.84e-04 | |
| ( 18 49 16.1, 00 58 27.0 ) | < 2.2" | 25.4 | 4.17e-04 | |
| ( 18 49 20.1, -1 02 57.0 ) | < 6.1" | 23.7 | 3.89e-04 | |
| ( 18 49 26.1, -1 00 24.0 ) | < 1.7" | 20.0 | 3.29e-04 | |
| ( 18 49 44.7, 00 54 27.4 ) | < 7.3" | 172.0 | 2.83e-03 | |
| ( 18 49 50.9, 00 48 38.0 ) | < 25.9" | 123.0 | 2.02e-03 | |
| ( 18 49 51.2, 00 54 05.4 ) | < 12.3" | 66.5 | 1.09e-03 | |
| ( 18 49 52.1, 00 48 12.3 ) | < 27.9" | 92.6 | 1.52e-03 | |
| ( 18 49 52.6, 00 52 09.7 ) | < 16.5" | 89.7 | 1.47e-03 | |
| ( 18 49 56.9, 00 51 57.2 ) | < 19.6" | 51.3 | 8.43e-04 | |
|
| |
This nearby source list is incomplete. All the above sources are originally from the "src2.fits" file which is distributed with standard Chandra processing. Only sources with significant count rate and which are clear to visual inspection are included.The size given above is the size of the region used in detecting that source.For each source, background was subtracted from an annular region around the source.
|
References | |
| Chen et al .. 2004, ApJ, 616, 885 : Chandra data
