Access to Astronomical Catalogues

J/AcA/58/41         ISM polarization towards NGC 1502        (Weitenbeck+, 2008)
ISM polarization towards NGC 1502.
    Weitenbeck A.J., Halstead E.A., Carver A.J.
   <Acta Astron. 58, 41 (2008)>
   =2008AcA....58...41W
ADC_Keywords: Clusters, open ; Polarization

Keywords: ISM general: dust, polarization -
          (Galaxy) open clusters: individual(NGC 1502)

Description:
    The polarimetry was obtained with the University of Wisconsin
    spectropolarimeter known as HPOL (descriptions in Wolff et al.
    1996AJ....111..856W and Nordsieck and Harris 1996, ASP Conf. Ser. 97,
    100; website address: http://www.sal.wisc.edu/HPOL/), on the 0.9m
    telescope at Pine Bluff Observatory or on the WIYN telescope at Kitt
    Peak.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        60       28   Stellar data
table2.dat        58      120   Polarization data
table3.dat        64        8   Derived Serkowski Law Parameters
notes.dat         80       87   Individual notes


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label     Explanations

       1  A1    ---     n_Name    [FC] F for field stars or C for Cluster stars
   3- 14  A12   ---     Name      Star name
  16- 20  F5.2  mag     Vmag      V magnitude (from Simbad)
  22- 25  F4.2  mag     B-V       ? B-V colour index (from Simbad)
  27- 38  A12   ---     SpType    MK Spectral type
  41- 42  I2    ---     Ref       References (1)
  44- 47  I4    pc      Dist      Distance (2)
  49- 58  A10   ---     OName     Other name
      60  A1    ---     Note      [*] indicates a note in notes.dat file

Note (1): References are numbered as follows:
      1 = HPOL
      2 = Abt and Cardona, 1983ApJ...272..182A
      3 = Dombrovskii and Hagen-Thorn, 1964TrLen..20...75D
      4 = Guetter, 1968PASP...80..197G
      5 = Harris, 1976ApJS...30..451H
      6 = Hoag and Applequist, 1965ApJS...12..215H
      7 = Morgan, Code and Whitford, 1955ApJS....2...41M
      8 = Henry Draper Catalog, Cat. III/135
      9 = Lorenz et al., 1998A&A...332..909L
     10 = Cowley et al., 1969AJ.....74..375C
     11 = Lesh, 1968ApJS...17..371L, Cat. III/23
Note (2): Distances for HD24479, HD24866, HD25427, and HD26138 are from
     Hipparcos parallaxes; the others are spectroscopic parallaxes.


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1- 12  A12   ---     Name      Star name
  15- 16  A2    ---     Filter    [UX BVRI] Filter (1)
  18- 24  F7.4  %       Q         Stokes parameter Q
  26- 32  F7.4  %       U         Stokes parameter U
  34- 39  F6.4  %       e_Q       Error on Q and U
  41- 44  F4.2  %       Pol       Percentage polarization
  46- 50  F5.1  deg     PA        Position angle of polarisation
  52- 58  A7    ---     Obs       Type of observation (ccd or Reticon)

Note (1): Normalized standard Johnson-Cousins passbands, UX, B, V, R and I



Byte-by-byte Description of file: table3.dat

   Bytes Format Units   Label    Explanations

   1- 12  A12   ---     Name     Star name
  14- 20  A7    ---     Obs      Type of observation (ccd or Reticon)
  22- 27  F6.2  deg     PA       Position angle
  29- 31  F3.2  deg     e_PA     rms uncertainty on PA
  33- 37  F5.3  %       Pmax     Maximim percentage polarisation
  39- 42  F4.3  %       e_Pmax   rms uncertainty on Pmax
  45- 48  I4    0.1nm   lam.max  Wavelength of Pmax
  50- 52  I3    0.1nm e_lam.max  rms uncertainty on lam.max
  55- 59  F5.3  ---     K        K parameter (1)
  61- 64  F4.3  ---     e_K      rms uncertainty on K

Note (1): where Pλ/Pmax=exp[-K*ln2^(λmax/λ)]



Byte-by-byte Description of file: notes.dat

   Bytes Format Units   Label     Explanations

   1- 12  A12   ---     Name      Star name
  14- 80  A67   ---     Note      Text of the note


Acknowledgements:
    Anthony J. Weitenbeck, ajw(at)astro.wisc.edu
(End)                                      Patricia Vannier [CDS]    28-Jul-2008