Unique source parameters (33 columns)

The column naming has changed as compared to 2XMMp.

SC_RA (D) [deg]

The mean Right Ascension in degrees (J2000) of all the detections of the source SRCID (see RA) weighted by the positional errors POSERR.

The errors used in the weighting have changed as compared to 2XMMp.


SC_DEC (D) [deg]

The mean Declination in degrees (J2000) of all the detections of the source SRCID (see DEC) weighted by the positional errors POSERR.

The errors used in the weighting have changed as compared to 2XMMp.


SC_POSERR (E) [arcsec]

The error of the weighted mean position given in SC_RA and SC_DEC in arseconds (see 2XMM UG, Sec. 3.2.4 for details).

SC_EP_1_FLUX (E) [erg/cm**2/s]

The mean band 1 flux (0.2 - 0.5 keV) of all the detections of the source SRCID (see EP_1_FLUX) weighted by the errors (EP_1_FLUX_ERR), in erg/cm2/s.]

This column was not given in 2XMMp.


SC_EP_1_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 1 flux in SC_EP_1_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_EP_2_FLUX (E) [erg/cm**2/s]

The mean band 2 flux (0.5 - 1.0 keV) of all the detections of the source SRCID (see EP_2_FLUX) weighted by the errors (EP_2_FLUX_ERR), in erg/cm2/s.

This column was not given in 2XMMp.


SC_EP_2_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 2 flux in SC_EP_2_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_EP_3_FLUX (E) [erg/cm**2/s]

The mean band 3 flux (1.0 - 2.0 keV) of all the detections of the source SRCID (see EP_3_FLUX) weighted by the errors (EP_3_FLUX_ERR), in erg/cm2/s.

This column was not given in 2XMMp.


SC_EP_3_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 3 flux in SC_EP_3_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_EP_4_FLUX (E) [erg/cm**2/s]

The mean band 4 flux (2.0 - 4.5 keV) of all the detections of the source SRCID (see EP_4_FLUX) weighted by the errors (EP_4_FLUX_ERR), in erg/cm2/s.

This column was not given in 2XMMp.

This column was wrong in version 1.0 of the 2XMMi catalogue. See the description; also Sec. 6.1.4


SC_EP_4_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 4 flux in SC_EP_4_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_EP_5_FLUX (E) [erg/cm**2/s]

The mean band 5 flux (4.5 - 12 keV) of all the detections of the source SRCID (see EP_5_FLUX) weighted by the errors (EP_5_FLUX_ERR), in erg/cm2/s.

This column was not given in 2XMMp.


SC_EP_5_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 5 flux in SC_EP_5_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_EP_8_FLUX (E) [erg/cm**2/s]

The mean total band flux (0.2 - 12 keV) of all the detections of the source SRCID (see EP_8_FLUX) weighted by the errors (EP_8_FLUX_ERR), in erg/cm2/s.

SC_EP_8_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean total band flux in SC_EP_8_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

SC_EP_9_FLUX (E) [erg/cm**2/s]

The mean band 9 flux (0.5 - 4.5 keV) of all the detections of the source SRCID (see EP_9_FLUX) weighted by the errors (EP_9_FLUX_ERR), in erg/cm2/s.

This column was not given in 2XMMp.


SC_EP_9_FLUX_ERR (E) [erg/cm**2/s]

Error on the weighted mean band 9 flux in SC_EP_9_FLUX (see 2XMM UG, Sec. 3.2.4 for details).

This column was not given in 2XMMp.


SC_HR1 (E)

The mean hardness ratio of the bands 1 and 2 of all the detections of the source SRCID (EP_HR1) weighted by the errors(EP_HR1_ERR).

SC_HR1_ERR (E)

Error on the weighted mean hardness ratio in SC_HR1 (see 2XMM UG, Sec. 3.2.4 for details).

SC_HR2 (E)

The mean hardness ratio of the bands 2 and 3 of all the detections of the source SRCID (EP_HR2) weighted by the errors(EP_HR2_ERR).

SC_HR2_ERR (E)

Error on the weighted mean hardness ratio in SC_HR2 (see 2XMM UG, Sec. 3.2.4 for details).

SC_HR3 (E)

The mean hardness ratio of the bands 3 and 4 of all the detections of the source SRCID (EP_HR3) weighted by the errors(EP_HR3_ERR).

SC_HR3_ERR (E)

Error on the weighted mean hardness ratio in SC_HR3 (see 2XMM UG, Sec. 3.2.4 for details).

SC_HR4 (E)

The mean hardness ratio of the bands 4 and 5 of all the detections of the source SRCID (EP_HR4) weighted by the errors(EP_HR4_ERR).

SC_HR4_ERR (E)

Error on the weighted mean hardness ratio in SC_HR4 (see 2XMM UG, Sec. 3.2.4 for details).

SC_DET_ML (E)

The total band detection likelihood of the source SRCID is the maximum of the likelihoods of all detections of this source (EP_8_DET_ML).

SC_EXT_ML (E)

The total band detection likelihood of the extended source SRCID is the average of the extent likelihoods of all detections of this source (EP_EXTENT_ML).

SC_CHI2PROB (E)

The χ2 probability (based on the null hypothesis) that the unique source SRCID as detected by any of the observations is constant, that is, the minimum value of the EPIC probabilities in each detection, EP_CHI2PROB, is given.

This column was not given in 2XMMp.


SC_VAR_FLAG (L)

The variability flag for the unique source SRCID is set to VAR_FLAG of the most variable detection of this source.

This column was not given in 2XMMp.


SC_SUM_FLAG (J)

The summary flag for the unique source SRCID is taken to be the worst flag of all detections of this source (SUM_FLAG).

There are additional values as compared to 2XMMp.


N_DETECTIONS (J)

The number of detections of the unique source SRCID used to derive the combined values.

SC_CHFLAG1 (J)

This flag indicates whether a source is 1 = a 2XMM source with unchanged SC_ parameters, 2 = a 2XMM source with changed SC_ parameters, or 3 = a new source, see 2XMMi UG, Table 3.

This column is new in 2XMMi.


SC_CHFLAG2 (J)

This flag indicates whether this 2XMMi source includes the gain or loss of an 'old' 2XMM detection, see 2XMMi UG, Sec. 3.2.1 for details.

This column is new in 2XMMi.