J/ApJS/220/17ivo://CDS.VizieR/J/ApJS/220/17doi:10.26093/cds/vizier.22200017CDSKwon J.Tamura M.Hough J.H.Nakajima Y.Nishiyama S.Kusakabe N.,Nagata T.Kandori R.2017-01-23T22:00:00Z2015-12-07T08:37:01ZCDS support team

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

cds-question@unistra.frpolarimetryinfrared-sourcesmolecular-cloudsWe conducted wide and deep simultaneous JHK_s_-band imaging polarimetry of the {rho} Ophiuchi cloud complex. Aperture polarimetry in the JHK_s_ band was conducted for 2136 sources in all three bands, of which 322 sources have significant polarizations in all the JHK_s_ bands and have been used for a discussion of the core magnetic fields. There is a positive correlation between degrees of polarization and H-K_s_ color up to H-K_s_~3.5. The magnetic field structures in the core region are revealed up to at least A_V_~47mag and are unambiguously defined in each sub-region (core) of Oph-A, Oph-B, Oph-C, Oph-E, Oph-F, and Oph-AC. Their directions, degrees of polarization, and polarization efficiencies differ but their changes are gradual; thus, the magnetic fields appear to be connected from core to core, rather than as a simple overlap of the different cloud core components. Comparing our results with the large-scale field structures obtained from previous optical polarimetric studies, we suggest that the magnetic field structures in the core were distorted by the cluster formation in this region, which may have been induced by shock compression due to wind/radiation from the Scorpius-Centaurus association.2015ApJS..220...17Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/220/17CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/332 : c2d Spitzer final data release (DR4) (Evans+, 2003)J/A+A/581/A30 : Herschel maps of rho Oph (Rebollido+, 2015)J/ApJS/211/3 : NIR photometry variability in {rho} Oph (Parks+, 2014)J/AJ/148/122 : YSOVAR: infrared photometry in Lynds 1688 (Gunther+, 2014)J/ApJ/775/84 : Polarization from stars behind IC63 nebula (Andersson+, 2013)J/ApJ/741/35 : NIR photometry and polarization in NGC 2264 (Kwon+, 2011)J/ApJ/720/1045 : Polarimetry toward sightlines through ChaI (Andersson+, 2010)J/A+A/515/A75 : Low-mass pop. in {rho} Oph cloud (Alves de Oliveira+, 2010)J/ApJ/708/758 : Polarimetry of HH1-2 region (Kwon+, 2010)J/ApJS/182/143 : SCUPOL Legacy polarimetry of SCUBA (Matthews+, 2009)J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)J/AJ/137/3149 : Near-infrared imaging polarimetry in S106 (Saito+, 2009)J/AJ/136/621 : Near-infrared polarimetry of M42 (Kusakabe+, 2008)J/A+A/485/155 : HK photometry of rho Oph PMS stars (Alves de Oliveira+, 2008)J/A+A/472/519 : N2H+(1-0) maps of Ophiuchus main cloud (Andre+, 2007)J/A+A/469/575 : Spitzer mid-IR spectra of 3 molecular clouds (Berne+, 2007)J/ApJ/665/369 : Photopolarimetry of Southern Coalsack stars (Andersson+, 2007)J/ApJ/566/993 : rho Oph (Lynds 1688) cluster NICMOS imaging (Allen+, 2002)J/A+A/372/173 : ISOCAM obs. of the rho Ophiuchi cloud (Bontemps+, 2001)J/A+A/359/113 : X-ray and IR study of Rho Oph dark cloud (Grosso+, 2000)J/ApJS/112/109 : Rho Oph Near-IR Positions and Photometry (Barsony+, 1997)J/A+A/216/44 : Walraven photometry in Sco-Cen association (De Geus+, 1989)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/220/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/220/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/220/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/220/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/220/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/220/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/220/17/table2 (Photometry and polarimetry of point-like sources in the {rho} Ophiuchi cloud core)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/220/17/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/220/17/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/220/17/table2?GETtext/xml+votable180.050000true246.4805417-24.19563890.0055555555555555566/42981 429837.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/220/17?format=asciiInfrareddefaultJ/ApJS/220/17/table2Photometry and polarimetry of point-like sources in the {rho} Ophiuchi cloud corerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSource identifier (1)meta.idintRAJ2000Hour of Right Ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (2)pos.eq.dec;meta.mainJmag[10.7/19.4]? The J band magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag[0/0.2]? Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag[9.6/19.1] The H band magnitudemagphot.mag;em.IR.Hfloate_Hmag[0/0.09] Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatKsmag[8.9/17.3] The K_S_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag[0/0.2] Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.KfloatPJ[0.2/68.4]? Degree of polarization in J band%phys.polarization;em.IR.Jfloatnullablee_PJ[0.02/26]? Uncertainty in PJ%stat.errorfloatnullablePH[0.09/38.2] Degree of polarization in H band%phys.polarization;em.IR.Hfloate_PH[0.02/14] Uncertainty in PH%stat.errorfloatPKs[0.02/43.2] Degree of polarization in K_S_ band%phys.polarizationfloate_PKs[0.02/15] Uncertainty in PKs%stat.errorfloatPAJ? Position angle of J band polarizationdegpos.posAng;phys.polarizationfloatnullablee_PAJ[0.2/481]? Uncertainty in {theta}_Jdegstat.errorfloatnullablePAHPosition angle of H band polarizationdegpos.posAng;phys.polarizationfloate_PAH[0.1/407] Uncertainty in {theta}_Hdegstat.errorfloatPAKsPosition angle of K_S_ band polarizationdegpos.posAng;phys.polarizationfloate_PAKs[0.1/905] Uncertainty in {theta}_Ksdegstat.errorfloatc2dSources within 0.5" from Evans+, 2003, II/332meta.ref.urlintnullable