III/170Bivo://CDS.VizieR/III/170BCDSMacConnell D. J.2023-06-29T12:16:11Z2009-08-06T11:34:37ZCDS support team

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

cds-question@unistra.frinfrared-sourceslate-type-starsastronomical-object-identificationThe file "ps_class.dat" is an ASCII text file containing the classifications of 14,192 IRAS Point Sources with the flux at 12{mu}m greater than the flux at 25{mu}m and falling within about 7{deg} of the galactic plane. The aim has been to provide classifications of IRAS-PS with no previous associations, so most bright stars such as in the BSC, SAO, and HD which have associations and good spectral types are not included. Also, many known carbon stars from the catalogue of Stephenson known to be associated with PS are not included. Introduction: Most of the sources are south of the celestial equator and have been classified in increasing galactic longitude over the period Sept. 1985 to May 1992. They have been classified on Kodak I-N objective-prism plates taken primarily with the Curtis Schmidt telescope at Cerro Tololo, but some northern plates taken with the Burrell Schmidt at Kitt Peak were also used for classification. The spectra cover the range 680-880nm at a dispersion of 340nm/mm at the A-band, and the plate scale is 96.6"/mm. They are ideal for classifying M stars of type M3 and cooler (increasing strength of TiO and VO bands) and carbon stars (CN bands), but stars warmer than M2 and most S stars cannot be classified or identified as such. The M stars M3 and cooler can be separated into about five groups. The limiting mag of the deepest plates is I about 13.5. The IRAS PS were identified on transparent overlays made to the plate scale for each plate center, and the association of a spectrum with a given PS is usually unambiguous. In cases of doubt or offset, a comment is made. Note that there are some cases where the PSC gives an incorrect association on the basis of position, and the correct association is with a faint, uncatalogued M star.1993yCat.3170.....Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/III/170BCatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)III/36 : General catalogue of cool carbon stars (GCCCS, Stephenson 1973)III/156 : Cool Galactic Carbon Stars, 2nd Edition (GCCGC, Stephenson 1989)III/227 : General Catalog of galactic Carbon stars, 3d Ed. (Alksnis+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=III/170Bhttps://vizier.iucaa.in/viz-bin/VizieR-2?-source=III/170Bhttp://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=III/170Bhttps://vizier.cds.unistra.fr/viz-bin/votable?-source=III/170Bhttps://vizier.iucaa.in/viz-bin/votable?-source=III/170Bhttp://vizieridia.saao.ac.za/viz-bin/votable?-source=III/170BGETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table III/170B/ps_class (The catalog of identifications, 2009 Version)https://vizier.cds.unistra.fr/viz-bin/conesearch/III/170B/ps_class?https://vizier.iucaa.in/viz-bin/conesearch/III/170B/ps_class?http://vizieridia.saao.ac.za/viz-bin/conesearch/III/170B/ps_class?GETtext/xml+votable180.050000true79.2749113927.535049720.005555555555555556Cone search capability for table III/170B/mac_iras (*Cross-identifications and remarks by B. Skiff)https://vizier.cds.unistra.fr/viz-bin/conesearch/III/170B/mac_iras?https://vizier.iucaa.in/viz-bin/conesearch/III/170B/mac_iras?http://vizieridia.saao.ac.za/viz-bin/conesearch/III/170B/mac_iras?GETtext/xml+votable180.050000true79.273916727.53444440.0055555555555555563/583 589 592 594 613 615 621 4/1301 1303 1346 1352-1354 1376-1377 1379-1380 1382 1385 1528 2325 2327 2364-2366 2372 2374 2400 2402 2408 2492-2493 2495 2504 2528 2536 2538 2598 2601-2604 2606 2688-2690 2692 5/5201 5203 5236-5237 5239 5245 5376-5377 5379-5382 5388-5389 5391 5394 5400 5402 5420 5422-5424 5433-5435 5513 5524 5526-5527 5533-5535 5552-5554 5556 5558-5559 5561 5917-5919 5941 5962 5984 6077 6091 6093-6095 6104 6106 6116 6118-6119 6124 9299 9305 9307 9415 9423 9447 9453 9470-9471 9520 9604 9606 9612 9614 9640 9642-9643 9797 9799 9804-9805 9807 9829-9831 9837 9839 9925 9927 9933 9976-9977 9979 9984-9986 9992-9994 10024-10026 10120 10122 10148 10150 10156 10158-10159 10382-10383 10387 10390 10396 10398 10401-10403 10420 10422-10423 10428 10430-10431 10464 10764-10766 10772 10784-10786 6/20801-20803 20809 20811 20837-20839 20844 20952-20953 20988-20989 20991 21335 21341 21513-21515 21533-21535 21560 21562-21563 21568 21570 21582 21612 21614 21684 21686-21687 21700-21701 21703-21706 21709-21711 21722 21728 21730-21731 21744 21752-21754 22049 22060-22061 22100 22102 22128 22130-22131 22149 22151 22157 22159 22192-22193 22195-22198 22204-22205 22220-22221 22223 22228-22229 22231 22240-22241 22243 22252 22304 22312 22314 22400-22401 22403-22404 22408 22410 23647 23661 23665 23667 23761 23763 23773 23842-23843 23852 23854-23855 23940 23944 24285-24287 24305 24317 24351 24357-24359 24361-24363 24368 24370-24371 24392 24394 24420 24422-24423 24428 24430 24434 24468-24469 24480-24481 24483-24485 24487-24489 24491-24493 24500-24502 24504-24506 24508 24512-24514 24522 37189-37191 37217-37219 37225-37227 37277 37279 37301 37309 37311 37684-37685 37687 37691 37781 37783 37787 37809 37819-37821 37823 37872-37874 37876-37877 37968-37970 37972 37976 37978 38000 38084 38088 38090-38091 38112 38114 38120 38420-38422 38428 38430 38452 38460 38462 38544-38545 38547 38552-38553 38564 38566-38567 39185 39187 39225 39227 39313-39315 39345-39347 39353 39697-39699 39705 39729 39731 39740-39741 39743 39829-39831 39836-39837 39839 39863 39869 39912-39913 39915 39948-39950 39952 39954 39981-39984 39986 39994 40082 40108-40110 40114 40120 40122 40464 40467 40472-40474 40484 40486 40492 40494-40496 40498 40504 40506-40508 40510 40604 40606-40607 40628 40630-40631 40680 40682-40683 41519 41525-41527 41547 41554 41588 41590 41603 41685-41687 41716 41718 41770-41771 41864 43068-43070 43092 43096 43104-43106 43148-43150 43152 43154 43168-43170 43176https://cdsarc.cds.unistra.fr/viz-bin/moc/III/170B?format=asciiInfrareddefaultIII/170B/ps_classThe catalog of identifications, 2009 VersionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_IRASmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharIRASIRAS-PSC Name (Cat. II/125)meta.id;meta.maincharprimaryClassClassification of the star and comments (<M means "M2 or earlier")meta.code.class;src.classcharOff? Offset from IRAS positionarcsecpos;arith.difffloatnullableDir[NSEW ] Direction of offset from IRAS positionpos.posAngcharPlatePlate numbermeta.id;instr.plateintn_Plate[lms] Note on Exposure/Plate (1)meta.notecharden[0,20]? Density on a scale of 0 to 20instr.paramintnullableu_den[:?v] Uncertainty flag (:) on denmeta.code.errorcharRemarksCross-identifications and remarks (2)meta.notechar_RAPosition from IRAS Point Source Catalog (Cat. II/125) (right ascension part)degpos.eq.ra;meta.mainnullableindexed_DEPosition from IRAS Point Source Catalog (Cat. II/125) (declination part)degpos.eq.dec;meta.mainnullableindexedIII/170B/mac_iras*Cross-identifications and remarks by B. SkiffrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRASIRAS-PSC Name (Cat. II/125)charf_IRAS[*!] additional note in file notes.htx (*), or the optical source differs from IRAS (!)charRAJ2000Right Ascension J2000meta.refindexedDEJ2000Declination J2000pos.eq.dec;meta.mainr[BDGgIMTUXs] Origin of position (1)meta.ref;pos.framecharGSCGSC designation (Cat. I/254)meta.id.crosscharMSX6CDesignation in MSX6C (Cat. V/114)meta.id.crosscharVmag? Visual magnitude (indicative)magphot.mag;em.opt.VfloatnullableSpSpectral classsrc.spTypecharn_Sp[r] 'r' for spectrum significantly reddenedmeta.notecharRemarksCross-identifications and remarksmeta.notechar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar