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 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 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:
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FileName Lrecl Records Explanations
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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
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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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
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Note (1): References are numbered as follows:
1 = HPOL
2 = Abt and Cardona, 1983ApJ...272..182A 1983ApJ...272..182A
3 = Dombrovskii and Hagen-Thorn, 1964TrLen..20...75D 1964TrLen..20...75D
4 = Guetter, 1968PASP...80..197G 1968PASP...80..197G
5 = Harris, 1976ApJS...30..451H 1976ApJS...30..451H
6 = Hoag and Applequist, 1965ApJS...12..215H 1965ApJS...12..215H
7 = Morgan, Code and Whitford, 1955ApJS....2...41M 1955ApJS....2...41M
8 = Henry Draper Catalog, Cat. III/135
9 = Lorenz et al., 1998A&A...332..909L 1998A&A...332..909L
10 = Cowley et al., 1969AJ.....74..375C 1969AJ.....74..375C
11 = Lesh, 1968ApJS...17..371L 1968ApJS...17..371L, Cat. III/23
Note (2): Distances for HD24479, HD24866, HD25427, and HD26138 are from
Hipparcos parallaxes; the others are spectroscopic parallaxes.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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)
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Note (1): Normalized standard Johnson-Cousins passbands, UX, B, V, R and I
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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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
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Note (1): where Pλ/Pmax=exp[-K*ln2^(λmax/λ)]
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- Name Star name
14- 80 A67 --- Note Text of the note
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Acknowledgements:
Anthony J. Weitenbeck, ajw(at)astro.wisc.edu
(End) Patricia Vannier [CDS] 28-Jul-2008