J/A+A/557/A82ivo://CDS.VizieR/J/A+A/557/A82doi:10.26093/cds/vizier.35570082CDSBuchholz R.M.Witzel G.Schodel R.Eckart A.2014-03-15T11:59:43Z2013-09-10T19:45:14ZCDS support team

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

cds-question@unistra.frinfrared-sourcesinfrared-photometrypolarimetryInfrared observations of the Galactic center (GC) provide a unique opportunity to study stellar and bow-shock polarization effects in a dusty environment. The goals of this work are to present new Ks- and Lp-band polarimetry on an unprecedented number of sources in the central parsec of the GC, thereby expanding our previous results in the H- and Ks-bands. We use AO-assisted Ks- and Lp-band observations, obtained at the ESO VLT. High precision photometry and the new polarimetric calibration method for NACO allow us to map the polarization in a region of 8"x25" (Ks) resp. 26"x28" (Lp). These are the first polarimetric observations of the GC in the Lp-band in 30 years, with vastly improved spatial resolution compared to previous results. This allows resolved polarimetry on bright bow-shock sources in this area for the first time at this wavelength.2013A&A...557A..82Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/557/A82CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/499/483 : sources in galactic center NIR observations (Buchholz+, 2009)J/A+A/502/91 : Proper motions of stars near SgrA* (Schoedel+, 2009)J/A+A/511/A18 : NIR observations of stars near SgrA* (Schoedel+, 2010)J/ApJ/727/L36 : 1.3mm VLBI observations of Sagittarius A* (Fish+, 2011)J/A+A/534/A117 : NIR polarimetry of sources near SgrA* (Buchholz+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/557/A82https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/557/A82http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/557/A82https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/557/A82https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/557/A82http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/557/A82GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/557/A82/pollist (H, Ks and Lp-band polarization parameters (tableA1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/557/A82/pollist?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/557/A82/pollist?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/557/A82/pollist?GETtext/xml+votable180.050000true266.4177092-29.00756670.0055555555555555566/288304.925240337479573e-20 1.2934455535160846e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/557/A82?format=asciiInfrareddefaultJ/A+A/557/A82/pollistH, Ks and Lp-band polarization parameters (tableA1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSource numbermeta.id;meta.mainintoRARight ascension offset from Sgr A* (1)arcsecpos.eq.ra;arith.difffloatoDEDeclination offset from Sgr A* (1)arcsecpos.eq.dec;arith.difffloatRpProjected distance from Sgr A*arcsecpos.distancefloatKsmag? Apparent Ks-band magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag? Error of Ks-band magnitudemagstat.error;phot.mag;em.IR.KfloatnullableHmag? Apparent H-band magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Error of H-band magnitudemagstat.error;phot.mag;em.IR.HfloatnullableLpmag? Apparent Lp-band magnitudemagphot.mag;em.IR.3-4umfloatnullablee_Lpmag? Error of Lp-band magnitudemagstat.error;phot.mag;em.IR.3-4umfloatnullablepK1? Ks-band polarization degree (2)%phys.polarization;em.IR.Kfloatnullablee_pK1? Error of pK1%stat.errorfloatnullablePAK1[-90/90]? K-band polarization angle%pos.posAng;phys.polarizationintnullablee_PAK1? Error of PAK1%stat.errorintnullablepK2? K-band polarization degree (2)%phys.polarization;em.IR.Kfloatnullablee_pK2? Error of pK2%stat.errorfloatnullablePAK2[-90/90]? K-band polarization angle%pos.posAng;phys.polarizationintnullablee_PAK2? Error of PAK2%stat.errorintnullablepK3? K-band polarization degree (2)%phys.polarization;em.IR.Kfloatnullablee_pK3? Error of pK3%stat.errorfloatnullablePAK3[-90/90]? K-band polarization angledegpos.posAng;phys.polarizationintnullablee_PAK3? Error of PAK3degstat.errorintnullablepH? H-band polarization degree (2)%phys.polarization;em.IR.Hfloatnullablee_pH? Error of pH%stat.errorfloatnullablePAH[-90/90]? H-band polarization angledegpos.posAng;phys.polarizationintnullablee_PAH? Error of PAHdegstat.errorintnullablepLp? Lp-band (3.5{mu}m) polarization degree (2)%phys.polarizationfloatnullablee_pLp? Error of pLp%stat.errorfloatnullablePALp[-90/90]? Lp-band polarization angledegpos.posAng;phys.polarizationintnullablee_PALp? Error of PALpdegstat.errorintnullable_RAPositions computed from offsets to Sgr A^*^ (right ascension part)degpos.eq.ra;meta.main_DEPositions computed from offsets to Sgr A^*^ (declination part)degpos.eq.dec;meta.main