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| 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 | 
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Radio | X-Ray |
- Radio Images Page: not availabe
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| Summary of Chandra Observations
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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 ) |
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 | Exposureuf => Exposure time of unfiltered event file
Exposuref => Exposure time of filtered event file | |
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| Chandra Event File
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 Click left mouse button on hyperlink below to download file | |
Obs. ID | Event 2 FITS File
(un-filtered) | Event 2 FITS File
(filtered) | AUX file
(asol, badpix etc.) | | 2786 | 18.6 MB | 8.2 MB | 15.9 MB |
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| Chandra Counts and Fluxes
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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 |
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| NH = 3.1(1022 cm-2) Assumed distance: 8kpc (Chen et al 2004) |
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| Chandra Images
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| Images in Several Energy BandsTrue Color ImageEquivalent Width Map
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Chandra Spectra | |
| Spectra of Several Regions
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Other Wavelengths | |
| Survey Missions
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Compact 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 | |
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This list is not complete. Sources are obvious and usually within or close to the remnant. The size refers to the appearance of the source and can be larger for off-axis sources.
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References | |
| Chen et al. 2004, ApJ, 616, 885 : Chandra data
