Data Model: etaCha_c001_main_V1.1

General Description
Catalog of X-ray sources in the eta Chamaeleontis field scan observation (OBSID 300004), see Robrade et al. (2021) and EDR page for further details.
Main catalog (0.2-2.3 keV): etaCha_c001_main_V1.1.fits
Hard catalog (2.3-5.0 keV): etaCha_c001_hard_V1.1.fits

Filename
etaCha_c001_main_V1.1.fits
Approximate Size
717 KB
File Type
FITS
Generated by Product
eSASS_users_201009

Sections

Content of the page.

HDU0: PRIMARY

HDU Type
IMAGE
HDU Size
0 bytes
Header Table Caption for HDU0
KeyValueTypeComment

HDU1: CATSRCL

Catalog of X-ray sources, 0.2-2.3 keV

HDU Type
BINARY TABLE
HDU Size
689 KB
Header Table Caption for HDU1
KeyValueTypeComment
Binary Table Caption for HDU1
NameTypeUnitDescription
ERO_NAME char[21] None eROSITA/SRG name
ID_SRC int32 None Source ID
RA float64 deg Right ascension
DEC float64 deg Declination
RADEC_ERR float32 arcsec Combined positional error
EXT float32 arcsec Source extent
EXT_ERR float32 arcsec Extent error
EXT_LIKE float32 None Extent likelihood
ML_CTS float32 cts Source counts from PSF-fitting
ML_CTS_ERR float32 cts 1-sigma source counts error
ML_RATE float32 count s-1 Source rate from PSF-fitting
ML_RATE_ERR float32 count s-1 1-sigma rate error
ML_FLUX float32 cm-2 erg s-1 Source flux in the detection band
ML_FLUX_ERR float32 cm-2 erg s-1 1-sigma source flux error
DET_LIKE float32 None Detection likelihood
ML_BKG float32 arcmin-2 count Background at the source position



Filename
etaCha_c001_hard_V1.fits
Approximate Size
28 KB
File Type
FITS

HDU0: PRIMARY

HDU Type
IMAGE
HDU Size
0 bytes
Header Table Caption for HDU0
KeyValueTypeComment

HDU1: CATSRCL

Catalog of X-ray sources, 2.3-5.0 keV

HDU Type
BINARY TABLE
HDU Size
6 KB
Header Table Caption for HDU1
KeyValueTypeComment
Binary Table Caption for HDU1
NameTypeUnitDescription
ERO_NAME char[21] None eROSITA/SRG name
ID_SRC int32 None
ID_MAIN int32 None Source ID in the main catalog for overlapping sources
RA float64 deg
DEC float64 deg
RADEC_ERR float32 arcsec
EXT float32 arcsec
EXT_ERR float32 arcsec
EXT_LIKE float32 None
ML_CTS float32 count
ML_CTS_ERR float32 count
ML_RATE float32 count s-1
ML_RATE_ERR float32 count s-1
ML_FLUX float32 cm-2 erg s-1
ML_FLUX_ERR float32 cm-2 erg s-1
DET_LIKE float32 None
ML_BKG float32 arcmin-2 count

References

Predehl et al. 2020. The eROSITA X-ray telescope on SRG

Robrade et al. 2021. The eROSITA X-ray scan of the eta Chamaeleontis cluster

Acknowledgement

The eROSITA data model structure for catalogues was branched from the SDSS data model for value added catalogues.