J/A+AS/101/551 Optical polarization of 1000 stars (Leroy 1993)
Optical polarization of 1000 stars within 50 pc from the Sun
Leroy J.L.
<Astron. Astrophys. Suppl. Ser. 101, 551 (1993)>
=1993A&AS..101..551L 1993A&AS..101..551L
ADC_Keywords: Polarization; Interstellar medium
Keywords: Polarization - interstellar medium: dust - solar neighbourhood
Abstract:
We have prepared a catalogue of optical polarization measurements for
1000 stars closer than 50 parsecs from the Sun. The distances, which
are presently those given in the Sky Catalogue 2000.0, 2nd Edition
(Hirshfeld et al., 1991skca.book.....H 1991skca.book.....H) are provisional: they will be
replaced later by the much safer parallaxes which will result from the
Hipparcos mission. The polarization data have been compiled, for 60%
in various catalogues with due care to their accuracy; for 40% they
are new, unpublished, measurements obtained at Pic du Midi
Observatory. We expect that this new data base will allow a better
understanding of the interstellar medium around the Sun.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 72 1000 The catalogue
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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- 6 I6 --- HD Star identification (HD number)
8- 9 I2 h RAh Right Ascension J2000 (hours) (2)
11- 12 I2 min RAm Right Ascension J2000 (minutes) (2)
14- 17 F4.1 s RAs Right Ascension J2000 (seconds) (2)
19 A1 --- DE- Declination J2000 (sign) (2)
20- 21 I2 deg DEd Declination J2000 (degrees) (2)
23- 24 I2 arcmin DEm Declination J2000 (minutes) (2)
26- 27 I2 arcsec DEs Declination J2000 (seconds) (2)
29- 31 I3 deg GLON Rounded Galactic longitude
33- 35 I3 deg GLAT Rounded Galactic latitude
39- 41 I3 pc Dist Distance
42 A1 --- u_Dist Uncertainty flag (:) on Dist
46- 48 I3 10-5 Pol Polarization degree, in units of 0.001 %
51- 52 I2 10-5 e_Pol Uncertainty on the polarization degree,
in the same unit
57- 58 A2 --- Ref1 Two first letters of the name of the author
who has published the polarization data;
the detailed references are provided in the
original paper.
62- 64 A3 --- Ref2 other references for the same star (1)
66- 68 A3 --- Ref3 other references for the same star (1)
70- 72 A3 --- Ref4 other references for the same star (1)
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Note (1): other references are in order of decreasing polarimetric accuracy.
Note (2): The coordinates have been added at CDS from SIMBAD data-base
(see the "History" section below)
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History:
* 12-Mar-1993: First archival at CDS
* 20-Jul-2000: The equatorial position of the stars were added
from the SIMBAD data-base (only the rounded galactic coordinates
existed in the original version) -- Francois Ochsenbein, CDS.
(End) [CDS] 20-Jul-2000