J/A+A/700/A107ivo://CDS.VizieR/J/A+A/700/A107doi:10.26093/cds/vizier/bc-nw/lbahCDSGreen M.J.van Roestel J.Wong T.L.S.2026-08-03T06:56:07Z2025-08-07T07:13:37ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frcataclysmic-variable-starswhite-dwarf-starsnovaeorbitsstellar-massesWe present an overview and catalogue of all known mass-transferring binary systems that have white dwarf accretors and orbital periods shorter than 70 minutes, including the AM CVn-type binary systems and a number of related objects. In this paper, we provide an overview of the literature background and describe recent breakthroughs, open questions, and connections to other fields. This overview is intended to provide a starting point for researchers who are relatively new to the fields of ultracompact binaries or AM CVn-type binaries. We define the scope of the catalogue (the criteria for inclusion) and describe its format and contents (what data have been included for each target). We also summarise the observed properties of the known mass-transferring ultracompact binaries, including their orbital periods and component stellar masses and radii. The catalogue presented here aims to provide a central resource to enable researchers to track the current status of the known sample. At the time of writing, the catalogue includes 123 confirmed binaries and 29 candidates. The catalogue is hosted on a public platform (Zenodo) with version control, and will be updated regularly.2025A&A...700A.107Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/700/A107CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/700/A107https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/700/A107http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/700/A107https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/700/A107https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/700/A107http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/700/A107GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/700/A107/catalog (Catalogue of all known mass-transferring ultra-compact binaries (UCBs) (Tables A1-A4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/700/A107/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/700/A107/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/700/A107/catalog?GETtext/xml+votable180.050000true121.5956333955415.458611722080.0055555555555555566/708 1349 1923 2297 2356 2715 2798 2833 2894 2966 3395 4153 4228 4354 4557 4653 4655 5110 5455 5675 6068 6086 6266 6439 6640 6799 6939 6957 7727 7793 8244 8591 9434 9562 9645 9732 9770 10023 10098 10714 10799 11133 11319 11577 12182-12183 13078 13471 13764 14004 14126 14184 14379 14511 14514 14782 14924 15001 15015 15112 15126 15130 15374 15754 15912 17022 17497 18559 19081 19592 19674 19791 20183 20234 20268 20747 20783 21710 21831 21854 22198 22629 22955 22969 23152 23305 23924 24341 24428 24572 24897 25506 25583 25636 25651 25724 25952 26171 26446 26818 27161 27982 28633 28822 28882 29025 29849 30041 30142 30459 31418 32057 32249 32422 32503 32642 32798 33124 33321 33765 34242 34766 34884 34977 36707 37385 37506 38091 38154 38270 39883 40172 40280 40355 40920 40957 42168 42617 42696 43050 43606 43743 44116 44518 45367 45546 45608 47457 48926 49121 491491.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/700/A107?format=asciidefaultJ/A+A/700/A107/catalogCatalogue of all known mass-transferring ultra-compact binaries (UCBs) (Tables A1-A4)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (Name)meta.id;meta.maincharPerpred? Predicted period (Period_predicted)mintime.periodfloatnullablePerComComments of period (Period_comment)meta.notecharr_PerPeriod reference (Period_ref) (1)meta.ref;pos.framecharDiskstateDisk state (Disk_state)meta.notecharSimbadNameSimbad column added by the CDSmeta.idcharnullableONamesOther name(s) (Other_names)meta.idcharRAJ2000Right ascension (J2000) (RA)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (Dec)degpos.eq.dec;meta.mainNotesNotes (Notes)meta.notecharConf[0/1]? Confirmed target? (Confirmed)meta.codeintnullableHassp[0/1]? Has spectrum? (Has_spectrum)meta.codeintnullableHasOptH[0/1]? Has optical hydrogen? (Has_optical_hydrogen)meta.codeintnullableHasODonor[0/1]? Has optical donor? (Has_optical_donor)meta.codeintnullableHasecl[0/1]? Has eclipses? (Has_eclipses)meta.codeintnullableHaseROSITA[0/1]? Has eROSITA? (Has_eROSITA)meta.codeintnullableAMCVn[0/1]? AM CVn-type binary? (AM_CVn)meta.codeintnullableHeCV[0/1]? He CV-type? (He_CV)meta.codeintnullablesdBdonor[0/1]? sdB donor system? (sdB_donor)meta.codeintnullableBDdonor[0/1]? BD donor system? (BD_donor)meta.codeintnullableWarmdonor[0/1]? Warm donor? (Warm_donor)meta.codeintnullableRefDiscDiscovery reference (Discovery_ref)meta.bibcharYearDiscDiscovery year (Discovery_year)yrtime.epochintRefsReferences (References)meta.ref;pos.framecharPer? Period (Period)mintime.periodfloatnullablen_PerNote on Period (Period_note)meta.notecharPdot? Spin-period derivative (Pdot)ps/sarith.rate;time.periodfloatnullablee_Pdot? Spin-period derivative error (Pdot_err)ps/sstat.errorfloatnullabler_PdotSpin-period derivative references (Pdot_ref) (1)meta.ref;pos.framecharq? Mass ratio (q=M2/M1) (Q)phys.mass;arith.ratiodoublenullablee_q? Mass ratio error (Q_err)stat.errordoublenullablef_qMethod to determinate mass ratio (Q_method)meta.codecharr_qMass ratio reference (Q_ref) (1)meta.ref;pos.framecharqComComments for mass ratio (Q_comment)meta.notecharSHexcess? Superhump excess, (Psh-Porb)/Porb, Psh for superhump period (Superhump_excess)stat.fit.paramdoublenullablee_SHexcess? Superhump excess error (Superhump_excess_err)stat.errordoublenullabler_SHexcessSuperhump_excess reference (Superhump_ref) (1)meta.ref;pos.framecharSHComComments of superhump excess (Superhump_comment)meta.notecharM1? Mass of the primary (M1)solMassphys.massfloatnullablee_M1? Mass of the primary error (M1_err)solMassstat.errorfloatnullableM2? Mass of the secondary (M2)solMassphys.massfloatnullablee_M2? Mass of the secondary error (M2_err)solMassstat.errorfloatnullabler_M1Reference for masses (Masses_ref) (1)meta.ref;pos.framecharn_M1Comments on masses (Masses_comment)meta.notecharGaiaDR3? Gaia DR3 source_id (Gaia_ID)meta.idnullableGmag? Gaia G magnitude (Gaia_Gmag)magphot.mag;em.optdoublenullablee_Gmag? Gaia G magnitude error (Gaia_Gmag_err)magstat.error;phot.magdoublenullableBp-Rp? Gaia Bp-Rp colour index (Gaia_BPRP)magphot.color;em.opt.B;em.opt.Rdoublenullableplx? Gaia parallax (Gaia_parallax)mspos.parallax.trigdoublenullablee_plx? Gaia parallax error (Gaia_parallax_err)msstat.error;pos.parallaxfloatnullableDist? Distance (Distance)pcpos.distancedoublenullableb_Dist? Distance 16 percentile (Distance_16)pcpos.distancedoublenullableB_Dist? Distance 84 percentile (Distance_84)pcpos.distancedoublenullableSpecrefsSpectroscopic reference (Spec_refs)meta.bibcharf_PerMethod to determinate period (Period_method)meta.codecharJ/A+A/700/A107/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar