J/PASP/126/469 PolarBase catalogue of stellar spectra (Petit+, 2014)
PolarBase: A database of high-resolution spectropolarimetric stellar
observations.
Petit P., Louge T., Theado S., Paletou F., Manset N., Morin J.,
Marsden S.C., Jeffers S.V.
<Publ. Astron. Soc. Pac. 126, 469 (2014)>
=2014PASP..126..469P 2014PASP..126..469P
ADC_Keywords: Stars, early-type ; Stars, late-type ; Line Profiles ;
Magnetic fields ; Polarization ; Spectroscopy
Keywords: Astronomical databases: miscellaneous - Stars: general
Abstract:
PolarBase is an evolving data base that contains all stellar data
collected with the ESPaDOnS and NARVAL high-resolution
spectropolarimeters, in their reduced form, as soon as they become
public. As of early 2014, observations of 2,000 stellar objects
throughout the Hertzsprung-Russell diagram are available. Intensity
spectra are available for all targets, and the majority of the
observations also include simultaneous spectra in circular or linear
polarization, with the majority of the polarimetric measurements being
performed only in circularly polarized light (Stokes V). Observations
are associated with a cross-correlation pseudo-line profile in all
available Stokes parameters, greatly increasing the detectability of
weak polarized signatures. Stokes V signatures are detected for more
than 300 stars of all masses and evolutionary stages, and linear
polarization is detected in 35 targets. The detection rate in Stokes V
is found to be anti-correlated with the stellar effective temperature.
This unique set of Zeeman detections offers the first opportunity to
run homogeneous magnetometry studies throughout the H-R diagram. The
web interface of PolarBase is available at
http://polarbase.irap.omp.eu.
Description:
We list the stellar spectroscopic and spectropolarimetric observations
available in the PolarBase data base. For each star equatorial
coordinates, first Julian date of observation, last Julian date of
observation, number of observations are given, and a detection
diagnosis of polarized signatures (in cross-correlated pseudo-line
profiles) are given.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
polar.dat 99 1925 PolarBase data summary
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See also:
http://polarbase.irap.omp.eu : PolarBase data HomePage
Byte-by-byte Description of file: polar.dat
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Bytes Format Units Label Explanations
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1- 22 A22 --- Name Designation of star
23 A1 --- f_Name [*] indicates corrections made in Jan. 2015
(see the "History" section below)
24- 25 I2 h RAh Right Ascension J2000.0 (hours)
27- 28 I2 min RAm Right Ascension J2000.0 (minutes)
30- 37 F8.5 s RAs ? Right Ascension J2000.0 (seconds)
39 A1 --- DE- Declination J2000.0 (sign)
40- 41 I2 deg DEd Declination J2000.0 (degrees)
43- 44 I2 arcmin DEm Declination J2000.0 (arcminutes)
46- 52 F7.4 arcsec DEs ? Declination J2000.0 (arcseconds)
54- 66 F13.5 d Obs1 UT heliocentric Julian date of first observation
68- 80 F13.5 d Obs2 UT heliocentric Julian date of last observation
82- 86 I5 --- Nobs Number of observations
88- 99 A12 --- Polar Detection of polarized signatures in
cross-correlated pseudo line-profile (1)
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Note (1): Following the convention of Donati et al. (1997MNRAS.291..658D 1997MNRAS.291..658D),
detection probabilities are classified as "DEFINITE", "MARGINAL", or
"No-detection". The "I_only" flag shows up when no polarized spectrum is
available, and the "N/A" flag corresponds to stars for which polarized
spectra are available, but without any associated cross-correlation
pseudo-profiles.
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Acknowledgements:
Thierry Louge, thierry.louge(at)irap.omp.eu
Pascal Petit, ppetit(at)irap.omp.eu
History:
* 07-Jul-2014: file received from author
* 15-Jan-2015: fixed 2 star names/positions marked with an asterisk:
-- source originally marked "M39" corrected into "M39 39" (the
original spectra could belong to several different stars in M39:
#39, 42, 54, and 91)
-- source originally marked "W80" corrected into "NGC 6611 80"
(End) Pascal Petit [OMP, France], Patricia Vannier [CDS] 07-Jul-2014