J/AJ/149/200ivo://CDS.VizieR/J/AJ/149/200doi:10.26093/cds/vizier.51490200CDSDahm S.E.Hillenbrand L.A.2018-01-04T08:22:48Z2015-06-26T13:08:13ZCDS support team

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

cds-question@unistra.frnebulaeopen-star-clustersemission-line-starsx-ray-sourcesinfrared-photometryvisible-astronomyphotometryline-intensitiesstellar-spectral-typesNGC7129 is a bright reflection nebula located in the molecular cloud complex near l=105.4{deg}, b=+9.9{deg}, about 1.15kpc distant. Embedded within the reflection nebula is a young cluster dominated by a compact grouping of four early-type stars: BD+65{deg}1638 (B3V), BD+65{deg}1637 (B3e), SVS 13 (B5e), and LkH{alpha} 234 (B8e). About 80 H{alpha} emission sources brighter than V~23 are identified in the region, many of which are presumably T Tauri star members of the cluster. We also present deep (V~23), optical (VR_C_I_C_) photometry of a field centered on the reflection nebula and spectral types for more than 130 sources determined from low dispersion, optical spectroscopy. The narrow pre-main sequence evident in the color-magnitude diagram suggests that star formation was rapid and coeval. A median age of about 1.8Myr is inferred for the H{alpha} and literature-identified X-ray emission sources having established spectral types, using pre-main sequence evolutionary models. Our interpretation of the structure of the molecular cloud and the distribution of young stellar objects is that BD+65{deg}1638 is primarily responsible for evacuating the blister-like cavity within the molecular cloud. LkH{alpha} 234 and several embedded sources evident in near-infrared adaptive optics imaging have formed recently within the ridge of compressed molecular gas. The compact cluster of low-mass stars formed concurrently with the early-type members, concentrated within a central radius of ~0.7pc. Star formation is simultaneously occurring in a semi-circular arc some ~3pc in radius that outlines remaining dense regions of molecular gas. High dispersion, optical spectra are presented for BD+65{deg}1638, BD+65{deg}1637, SVS 13, LkH{alpha} 234, and V350 Cep. These spectra are discussed in the context of the circumstellar environments inferred for these stars.2015AJ....149..200Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/149/200CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/328 : AllWISE Data Release (Cutri+ 2013)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/MNRAS/438/1848 : NGC 7129 Vilnius photometry (Straizys+, 2014)J/A+A/568/A65 : NGC 7129 FIRS 2 interferometric 1-D spectrum (Fuente+, 2014)J/AJ/143/3 : H{alpha} emission stars in IC 1274 (Dahm+, 2012)J/A+A/507/227 : NGC 7129 pre-main sequence stars (Stelzer+, 2009)J/AJ/133/2072 : Spitzer observations of NGC 2362 (Dahm+, 2007)J/AJ/131/1530 : H{alpha} emission stars in LDN988 (Herbig+, 2006)J/AJ/130/1805 : H{alpha} emission stars in NGC 2362 (Dahm+, 2005)J/AJ/129/829 : H{alpha} emission stars in NGC 2264 (Dahm+, 2005)J/AJ/128/1233 : LkH{alpha}101 and the cluster in NGC 1579 (Herbig+, 2004)J/AJ/123/304 : BV(RI)_C_JHK H{alpha} photometry in IC 5146 (Herbig+, 2002)J/ApJ/497/736 : The young cluster IC 348. (Herbig, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/149/200https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/149/200http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/149/200https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/149/200https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/149/200http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/149/200GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/149/200/table2 (Photometry for infrared sources without X-ray or H{alpha} emission)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/149/200/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/149/200/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/149/200/table2?GETtext/xml+votable180.050000true325.480416766.12819440.005555555555555556Cone search capability for table J/AJ/149/200/table4 (Optical photometry from the T2KA CCD imaging survey of NGC 7129)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/149/200/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/149/200/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/149/200/table4?GETtext/xml+votable180.050000true325.379958365.90105560.005555555555555556Cone search capability for table J/AJ/149/200/table3 (Photometry for spectroscopically classified stars without X-ray or H{alpha} emission)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/149/200/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/149/200/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/149/200/table3?GETtext/xml+votable180.050000true325.594791766.13136110.005555555555555556Cone search capability for table J/AJ/149/200/table1 (Optical and infrared photometry for H{alpha} and X-ray emission sources in NGC 7129)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/149/200/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/149/200/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/149/200/table1?GETtext/xml+votable180.050000true325.596166766.10122220.0055555555555555566/15759 157818.157980699529898e-21 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/149/200?format=asciiX-rayInfraredOpticaldefaultJ/AJ/149/200/table2Photometry for infrared sources without X-ray or H{alpha} emissionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the source (1)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainR-I? The (Rc-Ic) color index (2)magphot.color;em.opt.R;em.opt.IfloatnullableImag[17/21.8]? The Ic band magnitude (2)magphot.mag;em.opt.IfloatnullableJ-H? The (J-H) color index (G2)magphot.color;em.IR.J;em.IR.HfloatnullableH-K? The (H-K) color index (G2)magphot.color;em.IR.H;em.IR.KfloatnullableKmag[10.8/15.1]? The Ks band magnitude (G2)magphot.mag;em.IR.Kfloatnullable[3.6][7.5/16.9]? Spitzer/IRAC 3.6{mu}m magnitude (G3)magphot.mag;em.IR.3-4umfloatnullable[4.5][6.5/16.6] Spitzer/IRAC 4.5{mu}m magnitude (G3)magphot.mag;em.IR.4-8umfloat[5.8][5.6/16]? Spitzer/IRAC 5.8{mu}m magnitude (G3)magphot.flux.density;em.IR.4-8umfloatnullable[8.0][5/14.4]? Spitzer/IRAC 8.0{mu}m magnitude (G3)magphot.flux.density;em.IR.8-15umfloatnullableW1mag[8.3/16.1]? WISE W1 magnitude (3.35{mu}m) (G4)magphot.mag;em.IR.3-4umfloatnullableW2mag[6.75/15.2]? WISE W2 magnitude (4.6{mu}m) (G4)magphot.mag;em.IR.4-8umfloatnullableW3mag[4.15/12.15]? WISE W3 magnitude (11.6{mu}m) (G4)magphot.flux.density;em.IR.8-15umfloatnullableW4mag[0.3/9]? WISE W4 magnitude (22.1{mu}m) (G4)magphot.flux.density;em.IR.15-30umfloatnullableONameOther namemeta.idcharWISEAllWISE Data (2013, cat. II/328) within 3''meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/149/200/table4Optical photometry from the T2KA CCD imaging survey of NGC 7129recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmag[9/27] The V-band magnitudemagphot.mag;em.opt.Vfloate_VmagUncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatV-RThe (V-Rc) color indexmagphot.color;em.opt.V;em.opt.Rfloate_V-RUncertainty in V-Rmagstat.error;phot.color;em.opt.VfloatR-IThe (Rc_-Ic) color indexmagphot.color;em.opt.R;em.opt.Ifloate_R-IUncertainty in R-Imagstat.error;phot.color;em.opt.RfloatJ/AJ/149/200/table3Photometry for spectroscopically classified stars without X-ray or H{alpha} emissionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar[1/72] Running sequence number of the starmeta.numberintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSpTSpectral typesrc.spTypecharVmag[10.5/23] The V band magnitude (G1)magphot.mag;em.opt.VfloatV-RThe (V-Rc) color index (G1)magphot.color;em.opt.V;em.opt.RfloatR-IThe (Rc-Ic) color index (G1)magphot.color;em.opt.R;em.opt.IfloatJ-HThe (J-H) color index (G2)magphot.color;em.IR.J;em.IR.HfloatH-KThe (H-Ks) color index (G2)magphot.color;em.IR.H;em.IR.KfloatKmag[7.9/15.1] The Ks band magnitude (G2)magphot.mag;em.IR.KfloatW1mag[7.8/15.2]? WISE W1 magnitude (3.35{mu}m) (G4)magphot.mag;em.IR.3-4umfloatnullableW2mag[7.9/15.1]? WISE W2 magnitude (4.6{mu}m) (G4)magphot.mag;em.IR.4-8umfloatnullableW3mag[7.6/12.3]? WISE W3 magnitude (11.6{mu}m) (G4)magphot.flux.density;em.IR.8-15umfloatnullableComComments: IR excess, or star name (SVS 14 and SVS 4)meta.note;phot.color.excesscharWISEAllWISE Data (2013, cat. II/328) within 3''meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/149/200/table1Optical and infrared photometry for H{alpha} and X-ray emission sources in NGC 7129SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIHa[763/821]? IH{alpha} number of detected H{alpha} emission source (1)meta.idintnullableNameName of previously identified H{alpha} emission source (2)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainSpTSpectral typesrc.spTypecharVmag[10.4/23.25]? V band magnitude (G1)magphot.mag;em.opt.VfloatnullableV-R? The (V-Rc) color index (G1)magphot.color;em.opt.V;em.opt.RfloatnullableV-I? The (V-Ic) color index (G1)magphot.color;em.opt.V;em.opt.IfloatnullableJ-H? The 2MASS (J-H) color index (G2)magphot.color;em.IR.J;em.IR.HfloatnullableH-K? The 2MASS (H-Ks) color index (G2)magphot.color;em.IR.H;em.IR.KfloatnullableKmag[7/15.25]? The 2MASS Ks band magnitude (G2)magphot.mag;em.IR.Kfloatnullable[3.6][5.7/17.2]? Spitzer/IRAC 3.6{mu}m magnitude (G3)magphot.mag;em.IR.3-4umfloatnullable[4.5][5.1/16.2]? Spitzer/IRAC 4.5{mu}m magnitude (G3)magphot.mag;em.IR.4-8umfloatnullable[5.8][4.4/13.7]? Spitzer/IRAC 5.8{mu}m magnitude (G3)magphot.flux.density;em.IR.4-8umfloatnullable[8.0][3.3/13.5]? Spitzer/IRAC 8.0{mu}m magnitude (G3)magphot.flux.density;em.IR.8-15umfloatnullableW1mag[4.6/15.3]? WISE W1 magnitude (3.35{mu}m) (G4)magphot.mag;em.IR.3-4umfloatnullableW2mag[2.9/15.2]? WISE W2 magnitude (4.6{mu}m) (G4)magphot.mag;em.IR.4-8umfloatnullableW3mag[1.3/11.2]? WISE W3 magnitude (11.6{mu}m) (G4)magphot.flux.density;em.IR.8-15umfloatnullableW4mag[-1.75/9.5]? WISE W4 magnitude (22.1{mu}m) (G4)magphot.flux.density;em.IR.15-30umfloatnullableu_WHa[:] Uncertainty flag on WHameta.code.errorcharWHa[1/437]? Equivalent width of the H{alpha} profile (in {AA}) (3)0.1nmspect.line.eqWidth;em.line.Halphafloatnullablef_WHaEmission detected (em or em?)meta.codecharW8542[0/25]? Equivalent width of CaII{lambda}8542 (in {AA}) (3)0.1nmspect.line.eqWidthfloatnullablef_W8542Flag on CaII line (abs, ecr, flat) (4)meta.codecharOName1Other namemeta.idcharOName2Other namemeta.idcharNoteNote: "binary", "em?"=possible emission?, "wk cont"= weak continuum on grism imagesmeta.notecharWISEAllWISE Data (2013, cat. II/328) within 3''meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlchar