Einstein/SMC ivo://nasa.heasarc/smcxray NASA/GSFC HEASARC Wang, Wu 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This database contains the 70 `discrete' (i.e., more compact than a few arc minutes) Einstein IPC X-ray sources in the direction of the Small Magellanic Cloud (SMC) that are tabulated in Table 2A of Wang & Wu (1992, ApJS, 78, 391). For full details about the data processing and selection criteria used to create the original source catalog, the above reference should be consulted. This is a service provided by NASA HEASARC . 1992ApJS...78..391W https://heasarc.gsfc.nasa.gov/W3Browse/all/smcxray.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=smcxray& GET text/xml 180 99999 true 16.86 -75.4025 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=smcxray GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_smcxray&Action=More+Options&Action=Parameter+Search&ConeAdd=1 EINSTEIN 0.0833333333333333 X-ray public smcxray SMC X-Ray Discrete Sources name 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 IPC Count Rate (counts/s) ct/s phot.count;em.X-ray double nullable count_rate_error IPC Count Rate Error (counts/s) ct/s stat.error;phot.count;em.X-ray double nullable hardness_ratio Hardness Ratio phot.flux;arith.ratio;em.X-ray double 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 dec_b1950 Declination in B1950 Coordinates degree double nullable class Browse Object Classification src.class short nullable comments Comments char nullable ext_flag Extent Flag char nullable alt_name1 Identification Name #1 char nullable alt_name2 Identification Name #2 char nullable snr Signal-to-noise Ratio stat.snr double nullable source_type_flag Source Type Index Flag char nullable source_type Source Type Index src.class char nullable alt_name3 Identification Name #3 char nullable bii Galactic Latitude degree pos.galactic.lat double nullable lii Galactic Longitude degree pos.galactic.lon double nullable ra_b1950 Right Ascension in B1950 Coordinates degree double nullable