J/AJ/142/77ivo://CDS.VizieR/J/AJ/142/77doi:10.26093/cds/vizier.51420077CDSDeacon N.R.Liu M.C.Magnier E.A.Bowler B.P.Goldman B.,Redstone J.A.Burgett W.S.Chambers K.C.Flewelling H.Kaiser N.,Lupton R.H.Morgan J.S.Price P.A.Sweeney W.E.Tonry J.L.,Wainscoat R.J.Waters C.2013-01-27T07:23:03Z2013-01-10T12:41:48ZCDS support team

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

cds-question@unistra.frsurveysdwarf-starsinfrared-sourcesinfrared-photometryA complete well-defined sample of ultracool dwarfs is one of the key science programs of the Pan-STARRS 1 optical survey telescope (PS1). Here we combine PS1 commissioning data with the Two Micron All Sky Survey (2MASS) to conduct a proper motion search (0.1-2.0"/yr) for nearby T dwarfs, using optical+near-IR colors to select objects for spectroscopic follow-up. The addition of sensitive far-red optical imaging from PS1 enables discovery of nearby ultracool dwarfs that cannot be identified from 2MASS data alone. We have searched 3700deg^2^ of PS1 y-band (0.95-1.03um) data to y~19.5mag (AB) and J~16.5mag (Vega) and discovered four previously unknown bright T dwarfs. Three of the objects (with spectral types T1.5, T2, and T3.5) have photometric distances within 25pc and were missed by previous 2MASS searches due to more restrictive color selection criteria. The fourth object (spectral type T4.5) is more distant than 25pc and is only a single-band detection in 2MASS. We also examine the potential for completing the census of nearby ultracool objects with the PS1 3{PI} survey.2011AJ....142...77Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/77CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/310 : UKIDSS-DR7 Large Area Survey (Lawrence+ 2011)II/314 : UKIDSS-DR8 LAS, GCS and DXS Surveys (Lawrence+ 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/77https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/77http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/77https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/142/77https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/142/77http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/142/77GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/142/77/table2 (Objects with discrepant photometry between 2MASS and UKIRT/UKIDSS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/142/77/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/77/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/77/table2?GETtext/xml+votable180.050000true173.9578754.55508330.0055555555555555566/8215 8256 8263 8272 8280 8283 8297 8333 8339 8451 8601 8627 8646 8664 8670 8754 8785 8798 9369 9757 10136 10151 10244 10440 10472 10632 11023 11387 12351 12353 12416 12417 12424 12439 14862 14881 15135 15313 18618 18944 18960 18961 18971 19000 19036 19072 19073 19076 24936 26083 26171 26213 26231 26282 26286 26291 26298 26323 26328 26332 26449 26472 26477 26485 26490 26549 26600 26601 26602 26610 26993 27093 27652 27662 27687 27690 27701 27734 27801 27828 27913 27915 27944 28117 30078 30079 30165 30173 30781 30783 30852 30859 30866 30883 30884 30901 30923 30954 30955 30968 31146 31257 31293 31321 31334 31461 31481 31487 31501 31502 31567 31579 31588 31602 31649 31663 31671 31920 31930 31933 31965 32174 32176 32179 32266 32273 32277 32320 32518 32532 32540 32591 32595 42959 43945 44125 44143 44146 44317 44344 44387 44399 44487 44510 44517 44531 44534 48247 48252 48254 48326 48332 48418 48421 48431 48521 48549 48564 48577 48579 48902 48908 48919 48988 48990 49001 49004 49018 49019 49093 49111 491401.486179365615702e-19 2.0429600390310455e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/142/77?format=asciiInfrareddefaultJ/AJ/142/77/table2Objects with discrepant photometry between 2MASS and UKIRT/UKIDSSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ20002MASS Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ20002MASS Degree of Declination (J2000) (1)pos.eq.dec;meta.mainJ2mag2MASS J band magnitude (2)magphot.mag;em.IR.Jfloate_J2magThe 1{sigma} uncertainty in J2magmagstat.error;phot.mag;em.IR.JfloatRAPPS1 Hour of Right Ascension (J2000) (1)pos.eq.raDEPPS1 Degree of Declination (J2000) (1)pos.eq.decymagPS1 y-band (0.95-1.03{mu}m) magnitudemagphot.mag;em.IR.Jfloate_ymagThe 1{sigma} uncertainty in ymagmagstat.error;phot.mag;em.opt.VfloatYmagMKO (Maunea Kea) Y band magnitudemagphot.mag;em.IR.Jfloate_YmagThe 1{sigma} uncertainty in Ymagmagstat.error;phot.mag;em.opt.BfloatJmagMKO (Maunea Kea) J band magnitude (2)magphot.mag;em.IR.Jfloate_JmagThe 1{sigma} uncertainty in JMmagmagstat.error;phot.mag;em.IR.Jfloat2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar