/ftp/cats/J_AJ/132/1783


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J/AJ/132/1783       UBVRI phot. of 25 NGC 6611 stars         (Orsatti+, 2006)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	stars.dat table1.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/AJ/132/1783
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 Beginning of  ReadMe :
J/AJ/132/1783       UBVRI polarimetry of 25 stars in NGC 6611  (Orsatti+, 2006)
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Polarimetry in the outskirts of NGC 6611.
    Orsatti A.M., Vega E.I., Marraco H.G.
   <Astron. J., 132, 1783-1788 (2006)>
   =2006AJ....132.1783O
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ADC_Keywords: Clusters, open ; Photometry, UBVRI
Keywords: dust, extinction - techniques: polarimetric -
          open clusters and associations: individual (NGC 6611)

Abstract:
    We present new polarimetric UBVRI observations of 25 stars in the
    direction of the halo of NGC 6611, the rich stellar open cluster
    embedded in an ionized hydrogen complex (M16). Our plan is to
    characterize the interstellar material (ISM) associated with halo
    stars in order to make a comparison with the ISM dusty core
    characteristics that resulted from a previous investigation by the
    same authors.

Description:
    Observations in the UBV(RI)KC bands (Kron-Cousins;
    lambdaUeff=0.36um, FWHM=0.05um; lambdaVeff=0.44um, FWHM=0.06um;
    lambdaVeff=0.53um, FWHM=0.06um; lambdaReff=0.69um, FWHM=0.18um;
    lambdaIeff=0.83um, FWHM=0.15um) were carried out using the
    five-channel photopolarimeter of the Torino Astronomical Observatory
    attached to the 2.15m telescope at the Complejo Astronomico El
    Leoncito (San Juan, Argentina). They were performed on three nights
    (June 14-16) in 2002 and one night (May 29) in 2003.
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