J/MNRAS/461/3443/table5 | M31 deepest Chandra catalogue of point sources (Vulic+, 2016) M31 source list (795 rows) | recno=382 |
Column | Value | Explain (UCD) | |
_RAJ2000 | 00 42 42.50307 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) |
_DEJ2000 | +40 51 52.0600 | "d:m:s" | Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) |
_RAB1950 | 00 39 58.41674 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) |
_DEB1950 | +40 35 26.4827 | "d:m:s" | Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) |
_Glon | 121.15228256 | deg | Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) |
_Glat | -21.97712128 | deg | Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) |
382recno | 382 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
Seq | 382 | Source sequential number (meta.record) | |
CXOU | 004242.50+405152.0 | CXOU J name (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main) | |
RAJ2000 | 010.677096 | deg | (i) Right ascension (J2000) (pos.eq.ra;meta.main) |
DEJ2000 | +40.864461 | deg | (i) Declination (J2000) (pos.eq.dec;meta.main) |
Dist | 24.26 | arcmin | Distance from the centre of M31 (J004244.33+411607.50) (pos.angDistance) |
ePos | 0.0 | arcsec | Positional uncertainty (Note 1) (stat.error;pos) |
theta | 1.1 | arcmin | Average off-axis angle for merged observations (instr.offset;stat.mean) |
Nobs | 7 | Number of observations extracted (meta.number) | |
Det | ACIS-S | Detector in which the source was detected, ACIS-I, ACIS-S, or Both (meta.id) | |
Reg | B3 | Region for a source detected in ACIS-S or Both (obs.field) | |
Texp | 16 | ks | Total exposure time for merged observations (time.duration;obs.exposure) |
TexpMap | 6.8e+06 | s.cm+2 | Totat exposure map for merged observations (obs.param) |
Rsrc | 1.1 | pix | Average radius of the source extraction region (in sky pixel = 0.492") (phys.angSize;obs.field;stat.mean) |
SNR | 32.5 | Photometric significance (net counts / upper error on net counts) (0.3-8.0keV) (stat.snr) | |
Emed | 1.8 | keV | Background-corrected median photon energy (0.3-8.0keV) (em.energy) |
Match | Cross-match results from Section 3.4: active galactic nuclei (AGN) or low-mass X-ray binary (LMXB) (meta.code) |
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