J/ApJ/769/108ivo://CDS.VizieR/J/ApJ/769/108doi:10.26093/cds/vizier.17690108CDSBreton R.P.van Kerkwijk M.H.Roberts M.S.E.Hessels J.W.T.Camilo F.,McLaughlin M.A.Ransom S.M.Ray P.S.Stairs I.H.2017-06-02T08:37:20Z2015-01-16T10:58:30ZCDS support team

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

cds-question@unistra.frpulsarsinfrared-photometryvisible-astronomyWide-band photometrygamma-ray-astronomyIn the last few years, over 43 millisecond radio pulsars have been discovered by targeted searches of unidentified {gamma}-ray sources found by the Fermi Gamma-Ray Space Telescope. A large fraction of these millisecond pulsars are in compact binaries with low-mass companions. These systems often show eclipses of the pulsar signal and are commonly known as black widows and redbacks because the pulsar is gradually destroying its companion. In this paper, we report on the optical discovery of four strongly irradiated millisecond pulsar companions. All four sources show modulations of their color and luminosity at the known orbital periods from radio timing. Light curve modeling of our exploratory data shows that the equilibrium temperature reached on the companion's dayside with respect to their nightside is consistent with about 10%-30% of the available spin-down energy from the pulsar being reprocessed to increase the companion's dayside temperature. This value compares well with the range observed in other irradiated pulsar binaries and offers insights about the energetics of the pulsar wind and the production of {gamma}-ray emission. In addition, this provides a simple way of estimating the brightness of irradiated pulsar companions given the pulsar spin-down luminosity. Our analysis also suggests that two of the four new irradiated pulsar companions are only partially filling their Roche lobe. Some of these sources are relatively bright and represent good targets for spectroscopic follow-up.2013ApJ...769..108Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/769/108CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/eso : ESO Science Archive Catalog (ESO, 1991-2014)J/ApJ/763/80 : GBT 350MHz survey. I. 13 new pulsars (Boyles+, 2013)J/ApJS/208/17 : 2nd Fermi LAT cat. of gamma-ray pulsars (2PC) (Abdo+, 2013)J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)J/ApJ/753/83 : Associations to 1FGL sources (Ackermann+, 2012)J/AZh/79/501 : Radio luminosities of normal + millisecond PSRs (Kuz'min, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/769/108https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/769/108http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/769/108https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/769/108https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/769/108http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/769/108GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/769/108/table6 (Photometry of four fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/769/108/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/769/108/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/769/108/table6?GETtext/xml+votable180.050000true5.81869.331670.0055555555555555566/14219 18520 19535 32160https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/769/108?format=asciiGamma-rayOpticalInfraredRadiodefaultJ/ApJ/769/108/table3Photometry of PSR J2256-10recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandGMOS band (g, i or uvw1)meta.code;instr.filtercharInstInstrument (GMOS if blanck, ULTRACAM if "U", UVOT if "S")meta.id;instrcharMJDTimedtime.epochdoublePhaseOrbital phase (1)time.phasefloatFlux[-1.4/103] Flux in BanduJyphot.flux.densityfloate_Flux[0.02/6] Flux uncertainty (G1)uJystat.error;phot.fluxfloatmag[18.8/27.5] Magnitude in Band (G2)magphot.magfloate_mag[0.003/0.8] mag uncertainty (G1)magstat.error;phot.magfloatJ/ApJ/769/108/table6Photometry of four fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPSRField identifiermeta.id;obs.fieldcharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFgThe g band flux densityuJyphot.flux.density;em.optfloate_FgUncertainty in Fg (G1)uJystat.errorfloatFiThe i band flux densityuJyphot.flux.density;em.opt.Ifloate_FiUncertainty in Fi (G1)uJystat.errorfloatgmagThe g band magnitude (AB scale) (G2)magphot.mag;em.optfloate_gmagUncertainty in gmag (G1)magstat.error;phot.mag;em.opt.BfloatimagThe i band magnitude (AB scale) (G2)magphot.mag;em.opt.Ifloate_imagUncertainty in imag (G1)magstat.error;phot.mag;em.opt.IfloatJ/ApJ/769/108/table2Photometry of PSR J0023+09recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandGMOS band (g, i or uvw1)meta.code;instr.filtercharInstInstrument (GMOS if blanck, ULTRACAM if "U", UVOT if "S")meta.id;instrcharMJDTimedtime.epochdoublePhaseOrbital phase (1)time.phasefloatFlux[-1.4/103] Flux in BanduJyphot.flux.densityfloate_Flux[0.02/6] Flux uncertainty (G1)uJystat.error;phot.fluxfloatmag[18.8/27.5] Magnitude in Band (G2)magphot.magfloate_mag[0.003/0.8] mag uncertainty (G1)magstat.error;phot.magfloatJ/ApJ/769/108/table4Photometry of PSR J1810+17PhaseOrbital phase (1)time.phasefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandGMOS band (g, i or uvw1)meta.code;instr.filtercharInstInstrument (GMOS if blanck, ULTRACAM if "U", UVOT if "S")meta.id;instrcharMJDTimedtime.epochdoubleFlux[-1.4/103] Flux in BanduJyphot.flux.densityfloate_Flux[0.02/6] Flux uncertainty (G1)uJystat.error;phot.fluxfloatmag[18.8/27.5] Magnitude in Band (G2)magphot.magfloate_mag[0.003/0.8] mag uncertainty (G1)magstat.error;phot.magfloatJ/ApJ/769/108/table5Photometry of PSR J2215+51recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBandGMOS band (g, i or uvw1)meta.code;instr.filtercharInstInstrument (GMOS if blanck, ULTRACAM if "U", UVOT if "S")meta.id;instrcharMJDTimedtime.epochdoublePhaseOrbital phase (1)time.phasefloatFlux[-1.4/103] Flux in BanduJyphot.flux.densityfloate_Flux[0.02/6] Flux uncertainty (G1)uJystat.error;phot.fluxfloatmag[18.8/27.5] Magnitude in Band (G2)magphot.magfloate_mag[0.003/0.8] mag uncertainty (G1)magstat.error;phot.magfloat