RASS/WDw ivo://nasa.heasarc/rasswd NASA/GSFC HEASARC Fleming et al. 2026-04-03 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Star White Dwarf This database table lists all white dwarf stars, both previously-cataloged and newly discovered, which have been detected in the ROSAT All-Sky Survey. The positions and count rates of the X-ray sources associated with each star are given, as well as spectral types and other star names for those stars which have been previously cataloged. This database table also lists distances estimated via Balmer line profile fitting, corrected (for IS absorption) X-ray luminosities, and each star's contribution to the X-ray luminosity function for all DA white dwarfs which were detected in the ROSAT All-Sky Survey. This is a service provided by NASA HEASARC . 1996A&A...316..147F https://heasarc.gsfc.nasa.gov/W3Browse/all/rasswd.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=rasswd& GET text/xml 180 99999 true 49.297083 -85.542778 0.0333333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=rasswd GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_rasswd&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.0333333333333333 X-ray public rasswd ROSAT All-Sky Survey: White Dwarfs dec Declination degree pos.eq.dec;meta.main double nullable "__z_ra_dec" System unit vector column double nullable luminosity Corrected X-ray Luminosity 10^-7_W double nullable "__row" System index column char nullable phot_spect_flag Indicates Neither Photometry Nor Good Spectrum Available char nullable count_rate_error 1-Sigma Error in Count Rate ct/s stat.error;phot.count;em.X-ray.soft double nullable lii Galactic Longitude degree pos.galactic.lon double nullable villanova_name Villanova Catalog Designation char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable "__y_ra_dec" System unit vector column double nullable name Designation Derived from Identification Number meta.id;meta.main char nullable distance_flag Indicates How Distance Was Estimated char nullable count_rate PSPC Count Rate in 0.1-0.28 keV Band ct/s phot.count;em.X-ray.soft double nullable "__x_ra_dec" System unit vector column double nullable density_con Density Contribution to LF and LSD pc^-3 double nullable bii Galactic Latitude degree pos.galactic.lat double nullable count_rate_flag Note on Count Rate char nullable ref References char nullable wfc_flag Y-Detected in EUV by ROSAT WFC? char nullable spectral_type White Dwarf Spectral Type char nullable class Browse Object Classification src.class short nullable "distance" Estimated Distance to Each Star pc pos.distance double nullable