ARIEL3A ivo://nasa.heasarc/ariel3a NASA/GSFC HEASARC Warwick et al.; McHardy et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The 3rd Ariel-V SSI Catalog contains a list of X-ray sources detected by the University of Leicester's Sky Survey Instrument (SSI) on the Ariel-V satellite, and published (in 2 papers) as the Ariel-V (3A) Catalog: Warwick et al. 1981, MNRAS, 197, 865 (the low galactic latitude sources) and McHardy et al. 1981, MNRAS, 197, 893 (the high galactic latitude sources). The catalog is based on observations extending over a 5.5 year period from 1974 October until 1980 March. The SSI had a field of view of 0.75 by 10.6 degrees (FWHM) and had an energy range from 2 to 18 keV. A detailed description of the SSI is given by Villa et al. 1976, MNRAS, 176, 609. For a more detailed discussion of how the 3A Catalog was created, please refer to the Warwick et al. (1981) and McHardy et al. (1981) papers. This online catalog was created by the HEASARC in March 2003 based on the merger of two original tables originally obtained from the ADC website (<a href="https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/hilat.dat">https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/hilat.dat</a> and <a href="https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/lowlat.dat">https://heasarc.gsfc.nasa.gov/FTP/heasarc/dbase/misc_files/ariel3a/lowlat.dat</a>). This is a service provided by NASA HEASARC . 1981MNRAS.197..865W https://heasarc.gsfc.nasa.gov/W3Browse/all/ariel3a.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=ariel3a& GET text/xml 180 99999 true 98.07934407 -76.33030395 0.5 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=ariel3a GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_ariel3a&Action=More+Options&Action=Parameter+Search&ConeAdd=1 ARIEL V 0.5 X-ray public ariel3a 3rd Ariel-V SSI Catalog name Ariel Catalog Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable count_rate Average Count Rate (counts/sec) ct/s phot.count;em.X-ray double nullable count_rate_error Error in Average Count Rate (counts/sec) ct/s stat.error;phot.count;em.X-ray double nullable flux Flux (erg/cm^2/s) erg/cm^2/s phot.flux;em.X-ray double nullable flux_error Error in Flux (erg/cm^2/s) erg/cm^2/s stat.error;phot.flux;em.X-ray double nullable alt_names Alternative Names char nullable ra1 R.A. of Error Box Corner (J2000) degree float nullable dec4 Dec. of Error Box Corner (J2000) degree float nullable max_count_rate Maximum Count Rate (counts/sec) ct/s double nullable ra2 R.A. of Error Box Corner (J2000) degree float nullable flux_mcrab Flux (mCrab) mCrab double nullable ra4 R.A. of Error Box Corner (J2000) degree float nullable dec2 Dec. of Error Box Corner (J2000) degree float nullable position_code Code for Source of Position char nullable class Browse Object Classification src.class short nullable min_count_rate_error Error in Minimum Count Rate (counts/sec) ct/s double nullable error_area Area of Error Box (degree^2) degree^2 double nullable max_count_rate_error Error in Maximum Count Rate (counts/sec) ct/s double nullable ra3 R.A. of Error Box Corner (J2000) degree float nullable variability_code Flag Indicates Variability char nullable dec1 Dec. of Error Box Corner (J2000) degree float nullable bii Galactic Latitude degree pos.galactic.lat double nullable lii Galactic Longitude degree pos.galactic.lon double nullable dec3 Dec. of Error Box Corner (J2000) degree float nullable flux_mcrab_error Error in Flux (mCrab) mCrab double nullable min_count_rate Minimum Count Rate (counts/sec) ct/s double nullable min_count_rate_limit Flag Indicates Minimum Count Rate Upper Limit char nullable comments Other Information char nullable optical_id Optical Identification char nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable