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B/cb        Cataclysmic Binaries, LMXBs, and related objects   (Ritter+, 2014)

Catalogue of cataclysmic binaries, low-mass X-ray binaries and related objects (7th Edition, Release 7.21, March 2014) Ritter H., Kolb U. <Astron. Astrophys. 404, 301 (2003)> =2003A&A...404..301R
ADC_Keywords: Binaries, cataclysmic ; Binaries, X-ray ; Novae Keywords: catalogues - stars: novae, cataclysmic variables - stars: binaries: close Description (Release v7.21, March 2014): Cataclysmic Binaries are semi-detached binaries consisting of a white dwarf or a white dwarf precursor primary and a low-mass secondary which is filling its critical Roche lobe. The secondary is not necessarily unevolved, it may even be a highly evolved star as for example in the case of the AM CVn-type stars. Low-Mass X-Ray Binaries are semi-detached binaries consisting of either a neutron star or a black hole primary, and a low-mass secondary which is filling its critical Roche lobe. Related Objects are detached binaries consisting of either a white dwarf or a white dwarf precursor primary and of a low-mass secondary. The secondary may also be a highly evolved star. The catalogue lists coordinates, apparent magnitudes, orbital parameters, and stellar parameters of the components and other characteristic properties of 1166 cataclysmic binaries, 105 low-mass X-ray binaries and 500 related objects with known or suspected orbital periods together with a comprehensive selection of the relevant recent literature. In addition the catalogue contains a list of references to published finding charts for 1678 of the 1771 objects, and a cross- reference list of alias object designations. Literature published before 1 January 2014 has, as far as possible, been taken into account. Updated information will be provided regularly, currently every six months. Old editions include catalogue V/59 (5th edition), V/99 (6th edition) and V/113 (7th edition); the successive versions of the 7th edition are available in dedicated subdirectories (v7.00 to v7.20) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file cbdata.dat 226 1166 Catalogue of Cataclysmic Binaries lmxbdata.dat 228 105 Catalogue of Low-Mass X-Ray Binaries pcbdata.dat 217 500 Catalogue of Related Objects findrefs.dat 459 4258 References for finding charts cbrefs.dat 459 2533 References for cbdata.dat lmxbrefs.dat 459 297 References for lmxbdata.dat pcbrefs.dat 459 938 References for pcbdata.dat whoswho.txt 72 11704 *Names of objects, and references of designations whoswho1.dat 212 9594 *Alternative names in lexigraphical order whoswho2.dat 93 6079 *Provisional and Common designations whoswho5.dat 72 1533 *References to the catalogue acronyms
Note on whoswho.txt: contains the 3 parts whoswho1.dat to whoswho5.dat (without the bibcodes) Note on whoswho1.dat, whoswho2.dat, whoswho5.dat: formatted files corresponding to whoswho.txt
See also: http://www.MPA-Garching.MPG.DE/RKcat/ : Catalog Home page or http://physics.open.ac.uk/RKcat/ : Catalog Home page Byte-by-byte Description of file: cbdata.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (G1) 14 A1 --- whoswho [*] * indicating that further alternative designations are in the whoswho1.dat file 16- 27 A12 --- AltName A frequently used alternative name (G2) 30- 31 I2 h RAh Right Ascension J2000 (hours) 33- 34 I2 min RAm Right Ascension J2000 (minutes) 36- 39 F4.1 s RAs [0,60]? Right Ascension J2000 (seconds) 41 A1 --- DE- Declination J2000 (sign) 42- 43 I2 deg DEd Declination J2000 (degrees) 45- 46 I2 arcmin DEm Declination J2000 (minutes of arc) 48- 49 I2 arcsec DEs [0,60]? Declination J2000 (seconds of arc) 51 A1 arcsec epos [0-9] Position accuracy in (G3) 53- 54 A2 --- Type1 Object type (3) 55 A1 --- u_Type1 [?:] Uncertainty flag for object type 57- 58 A2 --- Type2 Object type (3) 59 A1 --- u_Type2 [?:] Uncertainty flag for object type 61- 62 A2 --- Type3 Object type (3) 63 A1 --- u_Type3 [?:] Uncertainty flag for Object type 65- 66 A2 --- Type4 Object type (3) 67 A1 --- u_Type4 [?] Uncertainty flag for Object type 69 A1 --- l_mag1 [><] Limit flag for magnitude mag1 70- 73 F4.1 mag mag1 ? Apparent V (or B, b, g, R, I) magnitude at maximum brightness (4) 74 A1 --- f_mag1 [:BbgRFiIJjKprvw] uncertainty flag or band for mag1 (w="white light") 76 A1 --- l_mag2 [><] Limit flag for magnitude mag2 77- 80 F4.1 mag mag2 ? Apparent V (or B, g, R) magnitude at mideclipse (5) 81 A1 --- f_mag2 [:?BbgRriIKpw] uncertainty flag/band for mag2 83 A1 --- l_mag3 [><] Limit flag for magnitude mag3 84- 87 F4.1 mag mag3 ? Apparent V (or B, g, R) magnitude of outbursts (6) 88 A1 --- f_mag3 [:?BbgpRrIw] uncertainty flag/band for mag3 90 A1 --- l_mag4 [><] Limit flag for magnitude mag4 91- 94 F4.1 mag mag4 ? Apparent V (or B, R) magnitude in superoutburst (7) 95 A1 --- f_mag4 [:?BgRUIpwr] uncertainty flag/band for mag4 97-101 A5 d T1 Time interval between two subsequent outbursts (8) 103-107 A5 d T2 Time interval between two subsequent superoutbursts (8) 109-116 F8.6 d Orb.Per ? Orbital period, in case of object type DQ: spectroscopic period, if it is different from the photometric one 117 A1 --- u_Orb.Per [:*] Uncertainty flag for Orb.Per (9) 119-126 E8.6 d 2.Per ? Second period (10) 127 A1 --- u2._Per [:*] Uncertainty flag for 2.__Per (9) 128-137 F10.3 s 3.Per ? Additional period in the system (11) 138 A1 --- f3._Per [:TQ] Flag for 3.__Per (12) 139-148 F10.3 s 4.Per ? Additional period in the system (13) 149 A1 --- f4._Per [:T] ":" uncertainty flag for 4.Per "T" flag indicating transient pulsations 151 A1 --- EB [D21? ] Flag indicating the occurrence of eclipses (G4) 152 A1 --- u_EB [?:] Uncertainty flag for EB 154 I1 --- SB [1,2]? Flag specifying the type of spectroscopic binary (G5) 155 A1 --- u_SB [:] Uncertainty flag for SB 157-163 A7 --- SpType2 Spectral type of the secondary (G6) 165-171 A7 --- SpType1 Spectral type of the primary (G6) 174 A1 --- l_M1/M2 Limit flag for M1/M2 175-179 F5.2 --- M1/M2 ? Mass ratio M1/M2 180 A1 --- u_M1/M2 Uncertainty flag for M1/M2 183-186 F4.2 --- e_M1/M2 ? Error of M1/M2 188 A1 --- l_Incl Limit flag for the orbital inclination 189-192 F4.1 deg Incl ? Orbital inclination 193 A1 --- u_Incl Uncertainty flag for the inclination 195-198 F4.1 deg e_Incl ? Error of orbital inclination 200 A1 --- l_M1 Limit flag for primary mass M1 201-205 F5.3 solMass M1 ? Primary mass M1 206 A1 --- u_M1 Uncertainty flag for primary mass M1 208-212 F5.3 solMass e_M1 ? Error of primary mass M1 214 A1 --- l_M2 Limit flag for secondary mass M2 215-219 F5.3 solMass M2 ? Secondary mass M2 220 A1 --- u_M2 Uncertainty flag for secondary mass M2 222-226 F5.3 solMass e_M2 ? Error of secondary mass M2
Note (3): Object type coarsely characterised using the following abbreviations: AC = AM CVn star, spectrum devoid of hydrogen lines, subtype of NL AM = polar = AM Her system, subtype of NL, contains a synchronously or nearly synchronously rotating, magnetized white dwarf AS = subtype of AM, with a slowly asynchronously rotating, magnetized white dwarf BD = secondary star is a brown dwarf CP = coherent pulsator, contains a coherently pulsating white dwarf CV = cataclysmic variable of unspecified subtype DA = non-magnetic direct accretor DN = dwarf nova DQ = DQ Her star, contains a non-synchronously rotating, magnetized white dwarf; usually not seen in X-rays EG = extragalactic source ER = ER UMa star = SU UMa star with an extremely short supercycle GC = source in a globular cluster GW = contains a pulsating white dwarf of the GW Vir = PG 1159-035 type IP = intermediate polar, shows coherent X-ray period from a non-synchronously spinning, magnetized white dwarf; usually a strong X-ray source LA = low accretion rate polar (LARP), i.e. a somewhat detached magnetic CV/pre-CV LI = low-accretion rate intermediate polar (LARIP), i.e. a somewhat detached magnetic CV/pre-CV N = classical nova Na = fast nova (decline from max. by 3mag in less than about 100days) Nb = slow nova (decline from max. by 3mag in more than about 100days) Nc = extremely slow nova (typical time scale of the decline from maximum: decades) NL = nova-like variable Nr = recurrent nova NS = system showing negative (nodal) superhumps PW = precessing white dwarf SH = non-SU UMa star showing either permanent or transient positive (apsidal) superhumps SS = supersoft X-ray source; CV with stationary hydrogen burning on the white dwarf SU = SU UMa star, subtype of DN SW = SW Sex star, subtype of NL UG = dwarf nova of either U Gem or SS Cyg subtype UL = ultra-luminous X-ray source UX = UX UMa star, subtype of NL VY = VY Scl star (anti dwarf nova), subtype of NL WZ = WZ Sge star = SU UMa star with an extremely long supercycle ZC = Z Cam star, subtype of DN ZZ = white dwarf shows ZZ Ceti-type pulsations Note (4): Apparent V magnitude at maximum brightness of: novae (N,Na,Nb,Nc,Nr) in minimum DN (UG,ZC,SU) in minimum NL (UX,AC) in normal state NL (DQ,IP,AM,VY) in high state. SS in high state. Note (5): In case of eclipses magnitude at mideclipse, of: novae (N,Na,Nb,Nc,Nr) in minimum DN (UG,ZC,SU) in minimum NL (UX,AC) in normal state NL (DQ,IP,AM,VY) in high state. SS in high state. Note (6): Apparent magnitude at maximum brightness of: novae (N,Na,Nb,Nc,Nr) in outburst DN (UG,ZC) in outburst DN (SU) in normal outburst DN (WZ) in echo outburst NL (AM,VY) in low state NL (DQ,IP) in low state SS in low state. * brightness if NL (DQ, IP) in low state. Note (7): Apparent magnitude at maximum brightness of: DN (ZC) in standstill DN (SU) in superoutburst WZ in superoutburst NL (DQ,IP) in flaring state or outburst NL (AM,VY) in low state * at minimum brightness of NL (AM,VY) in low state SS in low state Note (8): Time interval between outbursts is defined: * for dwarf novae of subtype UG or ZC: the typical time interval between two subsequent outbursts; * for dwarf novae of subtype SU and WZ: T1 is the typical time interval between two subsequent normal outburst, and T2 is the typical time interval between subsequent superoutbursts. Note (9): the * indicates, in case of object type SU, that the orbital period has been estimated from the known superhump period using the empirical relation given by B. Stolz and R. Schoembs (1984A&A...132..187S). Note (10): The second period is, in case of object type: DQ or IP: photometric period if it is different from the spectroscopic one AM: polarization period = spin period of the white dwarf, if it is different from the presumed orbital period (subtype AS) SU: superhump period, wherever possible, at the beginning of a superoutburst SH: photometric period, superhump period of either permanent or transient superhumps if 2.Per > Orb.Per. NS: photometric period, period of either permanent or transient negative superhumps if 2.Per. < Orb.Per. Note (11): This additional period is, in case of object type: CP: period of coherent pulsation, (transient if f3._Per=T) DQ: spin period of the white dwarf IP: spin period of the white dwarf, usually detected in X-Rays SW: probably the spin period of the white dwarf Note (12): the flag takes the values: ':' uncertainty flag 'T' indicating transient pulsations 'Q' indicating the occurrence of quasi- periodic oscillations (QPO) in objects of type N, DN, NL. Note (13): This additional period is, in case of object type: CP: second period of coherent pulsation, (transient if f4._Per=T) DQ: additional period, presumably due to reprocessed X-Rays IP: additional period, usually seen in the optical and presumably due to reprocessed X-Rays
Byte-by-byte Description of file: lmxbdata.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (G1) 14 A1 --- whoswho [*] * indicating that further alternative designations are in the whoswho1.dat file 16- 27 A12 --- AltName A frequently used alternative name (G2) 30- 31 I2 h RAh Right Ascension J2000 (hours) 33- 34 I2 min RAm Right Ascension J2000 (minutes) 36- 39 F4.1 s RAs Right Ascension J2000 (seconds) 41 A1 --- DE- Declination J2000 (sign) 42- 43 I2 deg DEd Declination J2000 (degrees) 45- 46 I2 arcmin DEm Declination J2000 (minutes of arc) 48- 49 I2 arcsec DEs Declination J2000 (seconds of arc) 51 A1 arcsec epos [0-9] Position accuracy in (G3) 53- 54 A2 --- Type1 Object type (3) 55 A1 --- u_Type1 [?] Uncertainty flag for object type 57- 58 A2 --- Type2 Object type (3) 59 A1 --- u_Type2 [?] Uncertainty flag for object type 61- 62 A2 --- Type3 Object type (3) 63 A1 --- u_Type3 [?] Uncertainty flag for Object type 65- 66 A2 --- Type4 Object type (3) 67 A1 --- u_Type4 [?] Uncertainty flag for Object type 69 A1 --- l_mag1 [><] Limit flag for magnitude mag1 70- 73 F4.1 mag mag1 ? Apparent V (or B, g, R, I, K) magnitude at maximum brightness, in case of XT in quiescence 74 A1 --- f_mag1 [:UBgrRIiJK] uncertainty flag/band for mag1 76 A1 --- l_mag2 [><] Limit flag for magnitude mag2 77- 80 F4.1 mag mag2 ? Apparent V (or B, R, I) magnitude at mid-eclipse (4) 81 A1 --- f_mag2 [:BRIJK] Uncertainty flag/band for mag2 84- 87 F4.1 mag mag3 ? Apparent V (or other) magnitude at outburst (5) 88 A1 --- f_mag3 [:BRIg] Uncertainty flag/band for mag3 90 A1 --- l_mag4 Limit flag of magnitude mag4 91- 94 F4.1 mag mag4 ? Apparent V (or other) magnitude at superoutburst (5) 95 A1 --- f_mag4 [R] Uncertainty flag/band for mag4 96 A1 --- l_LX/Lopt Limit flag on LX/Lopt 97-103 F7.1 --- LX/Lopt ? The ratio of X-ray to optical luminosity 106-108 I3 d T1 ? Typical time interval between two subsequent X-ray active states in case of subtype XT 110-118 F9.6 d Orb.Per ? Orbital period 119 A1 --- u_Orb.Per [:*] Uncertainty flag for Orb.Per (6) 120-128 F9.6 d 2.Per ? Second period, in case of object type SH: photometric period, presumably superhump period of either permanent or transient superhumps 129 A1 --- u2._Per Uncertainty flag for 2.Per 130-140 F11.7 s 3.Per ? Additional period in the system, in case of object type BO: period of burst oscillations = rotation period of the neutron star; XP: pulse period of the pulsar 141 A1 --- u3._Per Uncertainty flag for 3.Per 142-146 F5.1 s 4.Per ? Aditional period in the system, in case of object type XP: optical period, presumably due to e_processed X-Rays 152 A1 --- EB [D1 ] Occurrence of eclipses (G4) 153 A1 --- u_EB [?] Uncertainty flag on EB 155 I1 --- SB [1,2]? Flag specifying the type of spectroscopic binary (G5) 158-164 A7 --- SpType2 Spectral type of the secondary (G6) 167-173 A7 --- SpType1 Spectral type of the primary (G6) 175 A1 --- l_M1/M2 Limit flag for M1/M2 176-180 F5.2 --- M1/M2 ? Mass ratio M1/M2 181 A1 --- u_M1/M2 Uncertainty flag for M1/M2 182-186 F5.2 --- e_M1/M2 ? Error of M1/M2 189 A1 --- l_Incl Limit flag for the orbital inclination 190-193 F4.1 deg Incl ? Orbital inclination 194 A1 --- u_Incl Uncertainty flag (:) on Incl 196-199 F4.1 deg e_Incl ? Error of orbital inclination 201 A1 --- l_M1 Limit flag on M1 202-206 F5.2 solMass M1 ? Primary mass M1 207 A1 --- u_M1 Uncertainty flag (:) on M1 209-213 F5.2 solMass e_M1 ? Error of primary mass M1 215 A1 --- l_M2 Limit flag for secondary mass M2 216-221 F6.3 solMass M2 ? Secondary mass M2 222 A1 --- u_M2 Uncertainty flag (:) on M2 223-228 F6.3 solMass e_M2 ? Error of secondary mass M2
Note (3): the object type is coarsely characterised using the following abbreviations: AS = atoll source, subtype of the LMXBs BH = black hole candidate, subtype of the LMXBs BO = X-ray burster with coherent burst oscillations at the neutron star spin period DC = source with an accretion disc corona, subtype of the LMXBs EG = extragalactic source GC = source in a globular cluster MQ = microquasar, source of relativistic jets NS = system showing negative (nodal) superhumps QN = quiescent neutron star LMXB RP = primary is also seen as a radio pulsar SH = system showing either permanent or transient superhumps SS = supersoft X-ray source UL = ultra-luminous X-ray source XB = X-ray burst source XP = X-ray pulsar XT = transient X-ray source ZS = Z-source, subtype of the LMXBs Note (4): in case of eclipses magnitude at mideclipse, in case of XT in quiescence Note (5): in case of XL (XB, XT) in outburst Note (6): the * indicates, in case of object type SU, that the orbital period has been estimated from the known superhump period using the empirical relation given by B. Stolz and R. Schoembs (1984A&A...132..187S).
Byte-by-byte Description of file: pcbdata.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (G1) 14 A1 --- whoswho [*] * indicating that further alternative designations are in the whoswho1.dat file 16- 27 A12 --- AltName A frequently used alternative name (G2) 30- 31 I2 h RAh ? Right Ascension J2000 (hours) 33- 34 I2 min RAm ? Right Ascension J2000 (minutes) 36- 39 F4.1 s RAs ? Right Ascension J2000 (seconds) 41 A1 --- DE- ? Declination J2000 (sign) 42- 43 I2 deg DEd ? Declination J2000 (degrees) 45- 46 I2 arcmin DEm ? Declination J2000 (minutes of arc) 48- 49 I2 arcsec DEs ? Declination J2000 (seconds of arc) 51 A1 arcsec epos [0-9P] Position accuracy (G3) 53- 54 A2 --- Type1 Object type (3) 55 A1 --- u_Type1 [?] Uncertainty flag for object type 57- 58 A2 --- Type2 Object type (3) 59 A1 --- u_Type2 [?] Uncertainty flag for object type 61- 62 A2 --- Type3 Object type (3) 63 A1 --- u_Type3 [?] Uncertainty flag for object type 65- 66 A2 --- Type4 Object type (3) 70- 73 F4.1 mag mag1 ? Apparent V (or other) magnitude at maximum brightness outside eclipse 74 A1 --- f_mag1 [:BbpgVRriIK] uncertainty flag/band for mag1 76 A1 --- l_mag2 [><] Limit flag for magnitude mag2 77- 80 F4.1 mag mag2 ? Apparent V (or other) magnitude at minimum brightness, in case of eclipses magnitude at mideclipse. 81 A1 --- f_mag2 [:BgRiI] uncertainty flag/band for mag2 82- 90 F9.6 d Orb.Per Orbital period 91 A1 --- u_Orb.Per Uncertainty flag for Orb.Per 92-101 E10.4 s 2.Per ? Spin period of the accretor (white dwarf or neutron star). 103 I1 --- EB [1,2]? Flag indicating the occurrence of eclipses (G4) 104 A1 --- u_EB [?] Uncertainty flag for EB 106 I1 --- SB [1,2]? Flag specifying the type of spectroscopic binary (G5) 109-115 A7 --- SpType2 Spectral type of the secondary (G6) 117-123 A7 --- SpType1 Spectral type of the primary (G6) 125 A1 --- l_E [><] Limit flag for the orbital eccentricity 126-129 F4.2 --- E ? Orbital eccentricity 130 A1 --- u_E Uncertainty flag on orbital eccentricity 132-135 F4.2 --- e_E ? Error of orbital eccentricity 136 A1 --- l_M1/M2 Limit flag for mass ratio M1/M2 137-141 F5.2 --- M1/M2 ? Mass ratio M1/M2 142 A1 --- u_M1/M2 Uncertainty flag on mass ratio M1/M2 144-147 F4.2 --- e_M1/M2 ? Error of M1/M2 149 A1 --- l_Incl [<≳] Limit flag for the orbital inclination 150-153 F4.1 deg Incl ? Orbital inclination 154 A1 --- u_Incl Uncertainty flag for the inclination 156-159 F4.1 deg e_Incl ? Error of orbital inclination 161 A1 --- l_M1 Limit flag for primary mass M1 162-166 F5.3 solMass M1 ? Primary mass M1 167 A1 --- u_M1 Uncertainty flag for primary mass M1 169-173 F5.3 solMass e_M1 ? Error of primary mass M1 175 A1 --- l_R1 Limit flag for primary radius R1 176-180 F5.3 solRad R1 ? Primary radius 181 A1 --- u_R1 Uncertainty flag [:] for primary radius R1 183-187 F5.3 solRad e_R1 ? Error of primary radius R1 189 A1 --- l_M2 Limit flag for secondary mass M2 190-194 F5.3 solMass M2 ? Secondary mass M2 195 A1 --- u_M2 Uncertainty flag for secondary mass M2 197-201 F5.3 solMass e_M2 ? Error of secondary mass M2 203 A1 --- l_R2 Limit flag on secondary radius R2 204-209 F6.4 solRad R2 ? Secondary radius R2 210 A1 --- u_R2 Uncertainty flag [:] for secondary radius R2 212-217 F6.4 solRad e_R2 ? Error of secondary radius
Note (3): Object type coarsely characterised using the following abbreviations: BD = secondary star is a brown dwarf CP = coherent pulsator, contains a coherently pulsating white dwarf or subdwarf DD = system consists of two degenerate components DS = detached system EC = contains a pulsating sdB star of the EC 14026-2647 type GC = source in a globular cluster GP = sdB-star with g-mode pulsations GW = contains a pulsating white dwarf of the GW Vir = PG 1159-035 type PN = central star of a planetary nebula RS = system shows RS CVn-like chromospheric activity SC = sub-stellar companion ZZ = white dwarf shows ZZ Ceti-type pulsations
Byte-by-byte Description of file: *refs.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name 14- 32 A19 --- BibCode BibCode 34-459 A426 --- Text Text of reference
Byte-by-byte Description of file: whoswho1.dat
Bytes Format Units Label Explanations
1 A1 --- B [B] when the name is based on B1950 position 2- 25 A24 --- Name Object name 27 A1 --- --- [=] 29-212 A184 --- AltName Other name, or comment (1)
Note (1): Catalogue designations involving the equatorial coordinates are given in the following format: HHMM+DDMM (catalogue acronyms) if the position is given in B1950 coordinates -- a 'B' is then present in byte 1. JHHMM+DDMM (catalogue acronyms) if the position is given in J2000 coordinates. Here HHMM is the truncated right ascension in hours (HH) and minutes (MM), DDMM the truncated declination in degrees (DD) and arcminutes (MM), and + the sign of the declination.
Byte-by-byte Description of file: whoswho2.dat
Bytes Format Units Label Explanations
1 A1 --- B [B] when the name is based on B1950 position 2- 53 A52 --- cName Common or Provisional designation (G2) 55- 56 A2 --- --- [->] 58- 93 A36 --- Name Usual name
Byte-by-byte Description of file: whoswho5.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Abbr Catalogue abbreviation 14- 72 A59 --- Text Text of References
Global Notes: Note (G1): Wherever possible, the designation of the object given in the General Catalogue of Variable Stars (Cat. II/214) is used here. Note (G2): The acronyms used in lists are detailed in the last part of the file "whoswho.txt" Note (G3): The number indicates the accuracy of position in seconds of arc. If the positional error is larger than 9arcsec, or unknown, this field is left blank. The letter [P] indicates an object with a large proper motion. Note (G4): The EB flag means: (blank) = no eclipses observed. 1 = 1 eclipse per orbital revolution observed. 2 = 2 eclipses per orbital revolution observed. D = periodic eclipse-like dips observed. Note (G5): The SB flag means: 1 = single-line spectroscopic binary 2 = double-line spectroscopic binary Note (G6): Spectral types are given in the following format: [Spectral class/Luminosity class], where the usual roman numerals for the latter are replaced by the corresponding arabic numerals, i.e. I = 1, II = 2, III = 3, IV = 4, V = 5, VI = 6.
History (and statistics): * 16-Apr-2003: 7th Edition (472 CB + 71 LMXB + 113 PCB) * 28-Aug-2003: 7.1 Edition (499 CB + 74 LMXB + 114 PCB) * 12-Mar-2004: 7.2 Edition (522 CB + 75 LMXB + 117 PCB) * 01-Sep-2004: 7.3 Edition (535 CB + 78 LMXB + 131 PCB) * 24-Mar-2005: 7.4 Edition (572 CB + 80 LMXB + 142 PCB) * 25-Jul-2005: 7.5 Edition (599 CB + 81 LMXB + 147 PCB) * 01-Feb-2006: 7.6 Edition (623 CB + 83 LMXB + 162 PCB) * 29-May-2006: 7.6rev1 Edition (no new object) * 07-Dec-2006: 7.7 Edition (647 CB + 85 LMXB + 169 PCB) * 17-Aug-2007: 7.8 Edition (675 CB + 86 LMXB + 174 PCB) * 18-Mar-2008: 7.9 Edition (700 CB + 90 LMXB + 186 PCB) * 26-Jul-2008: 7.10 Edition (731 CB + 90 LMXB + 190 PCB) * 06-Apr-2009: 7.11 Edition (769 CB + 90 LMXB + 208 PCB) * 18-Sep-2009: 7.12 Edition (815 CB + 91 LMXB + 227 PCB) * 20-Mar-2010: 7.13 Edition (835 CB + 92 LMXB + 235 PCB) * 05-Nov-2010: 7.14 Edition (849 CB + 95 LMXB + 266 PCB) * 23-Mar-2011: 7.15 Edition (880 CB + 98 LMXB + 319 PCB) * 29-Sep-2011: 7.16 Edition (926 CB + 98 LMXB + 359 PCB) * 24-May-2012: 7.17 Edition (957 CB + 100 LMXB + 401 PCB) * 19-Jun-2012: 7.17rev1 (typos fixed in cbdata for J0038+7921 and NY Her) * 01-Aug-2012: 7.18 Edition (1005 CB + 101 LMXB + 427 PCB) * 31-Mar-2013: 7.19 Edition (1055 CB + 102 LMXB + 463 PCB) * 14-Jul-2013: 7.20 Edition (1094 CB + 104 LMXB + 483 PCB) * 20-Apr-2014: 7.21 Edition (1166 CB + 105 LMXB + 500 PCB) References: Ritter H., 1984A&AS...57..385R (3rd edition) Ritter H., 1987A&AS...70..335R (4th edition) Ritter H., 1990A&AS...85.1179R (5th edition) (Catalogue: V/59) Ritter H., Kolb U., 1995, in "X-ray Binaries", Lewin W.H.G, van Paradijs J., van den Heuvel E.P. (eds), Cambridge Univ. Press, p. 578 (Cat. V/82)
(End) H. Ritter, U. Kolb [MPA Garching], Francois Ochsenbein [CDS] 29-Sep-2011
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