HM XRB ivo://nasa.heasarc/hmxbcat NASA/GSFC HEASARC Liu, van Paradijs, van den Heuvel 2026-04-03 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Star XRB This table contains the 4th edition of the Catalog of High-Mass X-Ray Binaries (HMXBs) in the Galaxy. The catalog contains source name(s), coordinates, finding charts, X-ray luminosities, system parameters, and stellar parameters of the components and other characteristic properties for 114 HMXBs, together with a comprehensive selection of the relevant literature. The aim of this catalog is to provide some basic information on the X-ray sources and their counterparts in other wavelength ranges (gamma-rays, UV, optical, IR, radio). About 60% of the high-mass X-ray binary candidates are known or suspected Be/X-ray binaries, while 32% are supergiant/X-ray binaries. Some sources, however, are only tentatively identified as high-mass X-ray binaries on the basis of their X-ray properties similar to the known high-mass X-ray binaries. Further identification in other wavelength bands is needed to finally determine the nature of these sources. In cases where there is some doubt about the high-mass nature of the X-ray binary this is noted. Literature published before 1 October 2005 has, as far as possible, been taken into account. Information on the numbers used to code references is available at the URL <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/455/1165/refs.dat">https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/455/1165/refs.dat</a> Individual notes on each HMXB are available at the URL <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/455/1165/notes.dat">https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/455/1165/notes.dat</a> This database was first created by the HEASARC in January 2001, based on the 2000 version of this catalog. It was updated to the 4th edition in September 2006, based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/455/1165">CDS catalog J/A+A/455/1165</a>. This is a service provided by NASA HEASARC . 2006A&A...455.1165L https://heasarc.gsfc.nasa.gov/W3Browse/all/hmxbcat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=hmxbcat& GET text/xml 180 99999 true 189.81083333 -75.37055556 0.5 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=hmxbcat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_hmxbcat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 STAR CATALOG 0.5 X-ray Optical public hmxbcat Catalog of High-Mass X-Ray Binaries in the Galaxy (4th Ed.) kmag 2MASS K Magnitude mag phot.mag;em.IR.K double nullable vmag V Magnitude mag phot.mag;em.opt.V double nullable fx_range Energy Range for Flux Density If Not 2-20keV instr.bandwidth char nullable ref_fx Reference for X-Ray Flux Density meta.bib;phot.flux;em.X-ray char nullable vmag_limit Limit Flag for V Magnitude [>] meta.code;phot.mag;em.opt.V char nullable alt_name_3 Alternative Name #3 meta.id char nullable alt_name_2 Alternative Name #2 meta.id char nullable fx_max Upper Limit of X-ray Flux Density When Interval (microJy) microJy phot.flux.density;em.X-ray.medium;stat.max double nullable kmag_limit Limit Flag for K Magnitude meta.code;phot.mag;em.IR.K char nullable pulse_per_flag Pulse Period Uncertainty Flag [?] meta.code.error;time.period char nullable porb Orbital Period (d) d time.period double nullable vmag_min Lower Magnitude When Interval mag phot.mag;em.opt.V;stat.min double nullable pulse_per Pulse Period for X-Ray Pulsars (s) s time.period double nullable hmag_limit Limit Flag for H Magnitude meta.code;phot.mag;em.IR.H char nullable class Browse Object Classification src.class short nullable spect_type Spectral Type src.spType char nullable xray_type X-Ray Type [CEPRTU ?,] src.class char nullable "__z_ra_dec" System unit vector column double nullable dec Declination degree pos.eq.dec;meta.main double nullable fx_limit Limit Flag for X-Ray Flux Density meta.code;phot.flux.density;em.X-ray.medium char nullable hmag 2MASS H Magnitude mag phot.mag;em.IR.H double nullable ref_periods Reference for Orbital and/or Pulse Period meta.bib;time.period char nullable ub_color U-B Color Index mag phot.color;em.opt.B;em.opt.V double nullable alt_name_1_flag Alternative Name #1 Uncertainty Flag [?] meta.code char nullable alt_name_1 Alternative Name #1 meta.id char nullable "__row" System index column char nullable vmag_flag V Magnitude Uncertainty Flag [:] meta.code.error;phot.mag;em.opt.V char nullable bv_color B-V Color Index mag phot.color;em.opt.B;em.opt.V double nullable ref_optical References for Optical Counterpart (Finding Charts) meta.bib;em.opt char nullable "__x_ra_dec" System unit vector column double nullable jmag 2MASS J Magnitude mag phot.mag;em.IR.J double nullable name Source Designation meta.id;meta.main char nullable "__y_ra_dec" System unit vector column double nullable reddening Interstellar Reddening mag phot.color.excess double nullable fx X-Ray Flux Density (microJy) microJy phot.flux.density;em.X-ray.medium double nullable ref_photometry Reference for UBV Photometry meta.bib;phot char nullable reddening_flag Reddening Uncertainty Flag [:] meta.code.error;phot.color.excess char nullable lii Galactic Longitude degree pos.galactic.lon double nullable bii Galactic Latitude degree pos.galactic.lat double nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable position_type Type of Observation Used to Derive Position meta.code;instr.bandwidth;pos char nullable optical_name Name or Type of Optical Counterpart meta.id char nullable bv_color_flag B-V Color Uncertainty Flag [:] meta.code;phot.color;em.opt.B;em.opt.V char nullable bv_color_max Lower B-V Color Index When Interval mag phot.color;em.opt.B;em.opt.V;stat.max double nullable porb_flag Orbital Period Uncertainty Flag [?] meta.code.error;time.period char nullable reddening_max Maximum Reddening When Interval mag meta.code;phot.color.excess;stat.max double nullable