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| G120.1+01.4
Common Name: Tycho's Distance: 2.4kpc( Chevalier et al., 1980 )Center of X-ray emission (J2000): ( 00 25 19.9, 64 08 18.2 )X-ray size: 8.7'x8.6'Description: | |
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Radio | X-Ray |
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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) | | 500002
| 115
| ACIS-235678
| 48.4 | 48.4 | 2000-09-20 | ( 00 25 27.6, 64 09 14.7 ) |
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 | Exposureuf => Exposure time of unfiltered event file
Exposuref => Exposure time of filtered event file | |
| Images are incomplete ( ACIS-S3 covers most of the remnant while some easten part is covered by ACIS-S2.)No background light-curve filtering.
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| Chandra Event File
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 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.) | | 115 | 431.9 MB | 431.9 MB | 13.4 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 | 4.691e+06 | 9.697e+01 | 5.12e-10 | 1.99e-09 | 1.37e+36 |
| 0.3 - 2.1 | 4.055e+06 | 8.382e+01 | 3.01e-10 | 1.76e-09 | 1.21e+36 |
| 2.1 - 10.0 | 6.425e+05 | 1.328e+01 | 2.12e-10 | 2.36e-10 | 1.62e+35 |
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| NH = 0.6(1022 cm-2) Assumed distance: 2.4kpc ( Chevalier et al., 1980 ) | - nH was derived by fitting the low energy spectum with one thermal plsama model.
- Flux value given above is NOT from whole SNR.
- see fit detail page for more about the fit.
- see chandra spectrum page for region used.
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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 | |
| Radio ImagesSurvey Missions
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Nearby Sources | |
Obs. ID | Position (J2000) | Size | Net Count | Count rate | Note | | 115 | |
| ( 00 24 29.9, 64 09 03.1 ) | < 3.8" | 48.4 | 1.00e-03 | |
| ( 00 24 37.1, 64 10 59.4 ) | < 2.7" | 70.6 | 1.46e-03 | |
| ( 00 24 40.7, 64 20 32.1 ) | < 16.2" | 414.0 | 8.56e-03 | |
| ( 00 24 51.4, 64 17 25.3 ) | < 8.7" | 71.2 | 1.47e-03 | |
| ( 00 24 52.5, 64 11 32.5 ) | < 2.7" | 14.7 | 3.04e-04 | |
| ( 00 25 02.5, 64 13 51.4 ) | < 3.3" | 33.4 | 6.90e-04 | |
| ( 00 25 58.0, 64 19 49.1 ) | < 20.1" | 39.0 | 8.06e-04 | |
| ( 00 26 21.5, 64 12 11.4 ) | < 12.6" | 130.0 | 2.69e-03 | |
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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.
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References | |
| Bamba et al. 2005, ApJ, 621, 793 : Chandra, cosmic ray acceleration. Chevalier et al. 1980, ApJ, 235, 186 : Optical spectrum Hwang et al. 2002, ApJ, 581, 1101 : Chandra, forward shock Reynoso et al. 1997, ApJ, 491, 816 : VLA Warren et al. 2005, ApJ, 634, 376 : Chandra, cosmic ray acceleration.
