Free-floating planet candidates in Upp Sco and Oph J/A+A/664/A111 ivo://CDS.VizieR/J/A+A/664/A111 doi:10.26093/cds/vizier.36640111 CDS Bouy H. Tamura M. Barrado D. Motohara K. Castro Rodriguez N.,Miret-Roig N. Konishi M. Koyama S. Takahashi H. Huelamo N. Bertin E.,Olivares J. Sarro L.M. Berihuete A. Cuillandre J.-C. Galli P.A.B.,Yoshii Y. Miyata T. 2024-12-30T20:00:49Z 2022-08-15T14:20:10Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr star-forming-regions multiple-stars exoplanets spectroscopy A rich population of low-mass brown dwarfs and isolated planetary mass objects has been reported in the Upper Scorpius and Ophiuchus star-forming complex. We investigate the membership, nature, and properties of 17 of these isolated planetary mass candidates using low-resolution near-infrared spectra. We investigated the membership by looking for evidence of their youth using four diagnostics: the slope of the continuum between the J and Ks band, the Hcont, and the TLI-g gravity-sensitive indices. In addition, we compared the spectra to young and field (old) M and L-dwarf standards. All the targets but one are confirmed as young ultracool objects, with spectral types between L0 and L6 and masses in the range 0.004-0.013M_{sun}_, according to evolutionary models. The status of the last target is unclear at this point. Only one possible contaminant has been identified among the 17 targets, suggesting that the contamination level of the original sample must be low (<6%). 2022A&A...664A.111B https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A111 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/other/NatAs/6.89 : Upper Scorpius members (Miret-Roig+, 2022) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A111 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A111 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A111 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A111 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A111 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A111 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/664/A111/table1 (Targets observed) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A111/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A111/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A111/table1? GET text/xml+votable 180.0 50000 true 243.467375 -24.7322778 0.005555555555555556 Cone search capability for table J/A+A/664/A111/tableb4 (Gravity sensitive indices measured in 891 spectra of the SPEX library) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A111/tableb4? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A111/tableb4? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A111/tableb4? GET text/xml+votable 180.0 50000 true 0.056416664 25.904999 0.005555555555555556 Associated data https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/664/A111 6/207 221 223 250 266 281 322 331 369 410 445 464 466 483 487 527 544 548 580 586 672 733-734 743 749 759 762-763 771 780 858 862 1055 1068 1188 1538-1539 1637 2040 2044 2064 2110 2149 2164 2260 2432 2441 2538 2653-2654 2659 3715 3764 4096 4106 4116 4136 4183 4224 4226 4251 4253 4262-4263 4274 4285 4291 4314 4316 4521 4536 4543 4630 4662 4669 4685 4716 4719 4729 4825 4867 4875 4912 4921 4946 5000 5044 5077 5147 5200 5264 5325 5339 5354 5413 5429 5540 5551 5621 5631 5634 5718 5726 5840 5842 5854 6098 6183 6223 6255 6261 6346 6406 6499 6539 6550 6582 6601 6613 6625 6629 6761 6783 7030 7033 7162 7220 7227 7249 7297 7369 7404 7420 7440 7512 7712 7744 7762 7846 7849 7936 8314 8348-8349 8354 8361 8381 8402 8422 8475 8480 8519 8544 8560 8563 8625 8715 8719 8761 8783 8794 8808 8898 8900 8910 8972 8974 9009 9018 9022 9124 9146 9169 9173 9180 9185 9224 9245 9318 9366 9385 9411 9434 9449 9467 9479 9483 9534 9569 9601 9628 9643 9715 9784 9914 9921 9986 10037 10063 10090 10114 10234 10243 10445 10475 10484 10516 10555 10654 10657 10702 10710 10813 10819 10858 10975 11164 11247 11445 11453 11553 11587 11591 11608 11856 11862 11912 12400 12427 12430 12466 12519 12537 12579 12582 12612 12638 12719 12755 12770-12771 13336 13341 13416 13425 13455 13481 13544 13576 13672 13885 13952 14084 14351 14926 15043 15085 15097 15494 16424 16434 16440 16528 16546 16601 16609 16631 16634 16639 16687 16767 16778 16793 16802 16817 16850 16856 16867 16873 16906 16983 17022 17075 17096 17105 17115 17156 17203 17242 17244 17259 17261 17268 17287 17297 17303 17317 17332 17387 17434 17452 17501 17515 17530 17580 17594 17655 17674 17757 17776 17835 17841 17883 17930 18019-18020 18031-18032 18060 18062 18084 18087 18101 18138 18155 18166 18180 18203-18204 18281 18297 18303 18347 18367 18375 18450 18482 18555 18594 18711 18717 18741 18749 18782 18788 18792 18805 18840 18846 18866 18931 18947 19016 19022 19050 19137-19138 19144 19185 19224 19278 19399 19413 19423 19443 19461 19511 19565 19598 19648 19672 19697 19726 19748 19755 19763 19776 19786 19794 19813 19820 19857 19906 19932 19996 20040 20077 20102 20141 20273 20318 20323 20374 20381 20436 20461 20591 20672 20699 20713 20754 20897 20993 20996 21093 21118 21123 21171 21296 21578 21637 21660 21728 21835 21985 22082 22177 22300 22360 22535 22588 22720 22726 22759 22850 22861 22876 22937 22950 23010 23144 23195 23234 23237 23290 23325 23436 23444 23470-23471 23530 23718 23735 23791 24105 24345 24566 24580-24581 24590 24631-24632 24716 24740 24824 24925 25044 25096 25156 25223 25266 25310 25314 25411 25433 25558 25846 25853 25945 25981 26095 26127 26196 26209-26210 26223 26282 26300 26327 26345 26403 26430 26509 26667 26786 26960 27058 27110 27201 27214 27334 27358 27366 27372 27383 27402 27405 27414 27462 27469 27514-27515 27518 27618 27629 27635 27648 27653 27685 27698 27704 27834 28006 28018 28111 28277 28316 28530 28612 28704 28830 29301 29305 29452 29577 29805 29841 29987 30061 30112 30163 30505 30749 30764 30833 30883 30939 30948 30956 31009 31011 31013 31020 31035 31062 31075 31097 31138 31144 31253 31268 31308-31309 31324 31336 31363 31502 31509 31550 31594 31601 31691 31722 31863 31871 31905 31935 32284 32322 32372 32402 32462 32493 32574 32602 32616 32648 32650 32690 33655 33767 34102 34154 34216 34289 34373 34400 34406-34407 34535 34626 34645 34656 34780 34803 35059 35063 35202-35203 35299 35324-35325 35364 35387 35412 35451 35471 35495 35499 35509 35538 35623 35630 35747 35864 35943 36004 36098 36142 36160 36176 36204 36223 36237 36253 36265 36418 36436 36458 36467 36560 36686 36718 36740 36772 36784 36821 36830 38039 38164 38310 38340 38363 38683 38786 38812 38880 39140 39147 39185 39482 39485 39736 39807 40022 40191 40200 40273 40332 40375 40485 40669 40738 40779 40882 40901 40941 41908 42270 42287 42628 42635 42926-42928 42935-42936 42938-42939 42969 42982-42983 42985 43003-43004 43315 43422 43429 43475 43482 43512 43575 43718 43875 43957 43966 43977 44153 44226 44232 44238 44289 44292 44301-44302 44305-44306 44314 44336-44337 44339 44343 44348 44352 44355 44357 44363-44364 44367 44378 44416 44486 44632 44929 44942 44954 45023 46054 46376 46671-46672 46727 46729 46744 46823 46846 46929 46961 46999 47012 47357 47367 47819 47828 47928 47979 48081 48171 48205 48270 48300 48304 48409 48455 48474 48593 48604 48643 48723 48811 48817 48883 48912 48937 48990 49011 49013 49107 49112 49139-49140 49150 7.952274030004205e-20 1.7798557115773645e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A111?format=ascii default J/A+A/664/A111/table1 Targets observed Hmag H magnitude mag phot.mag;em.IR.H float e_Hmag rms uncertainty on H magnitude (2MASS system) mag stat.error;phot.mag float Ksmag Ks magnitude mag phot.mag;em.IR.K float e_Ksmag rms uncertainty on Ks magnitude (2MASS system) mag stat.error;phot.mag float ExpTime Exposure time, NDITxDIT s time.duration;obs.exposure int FileName Name of spectrum fits file in subdirectory fits meta.id;meta.fits char sp Show the spectrum meta.ref.url char Name Name (DANCe JHHMMSSss+DDMMSSs) meta.id;meta.main char ID Identification number (1) meta.id int RAJ2000 Right ascension (J2000) pos.eq.ra;meta.main DEJ2000 Declination (J2000) pos.eq.dec;meta.main AVmax Integrated line-of-sight interstellar reddening to 250pc in the direction of the source (2) mag phys.absorption float imag i magnitude mag phot.mag;em.opt.I float e_imag rms uncertainty on i magnitude mag stat.error;phot.mag float zmag ? z magnitude mag phot.mag;em.opt.I float nullable e_zmag ? rms uncertainty on z magnitude mag stat.error;phot.mag float nullable ymag ? y magnitude mag phot.mag;em.IR.J float nullable e_ymag ? rms uncertainty on y magnitude mag stat.error;phot.mag float nullable Jmag J magnitude mag phot.mag;em.IR.J float e_Jmag rms uncertainty on J magnitude (2MASS system) mag stat.error;phot.mag float recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Inst Instrument (SWIMS or EMIR) meta.id;instr char
J/A+A/664/A111/tableb4 Gravity sensitive indices measured in 891 spectra of the SPEX library recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Name Designation meta.id;meta.main char RAJ2000 ? Right Ascencion (J2000) deg pos.eq.ra;meta.main nullable DEJ2000 ? Declination (J2000) deg pos.eq.dec;meta.main nullable SimbadName Simbad column added by the CDS meta.id char nullable e_Hcont Error on Hcont stat.error char TLI-g TLI-g index value spect.index float e_TLI-g Error on TLI-g stat.error float SpType Spectral type src.spType char SpecClass SPEX Gravity class meta.code.class char Hcont ? Hcont index value spect.index float nullable