B/polarbase PolarBase spectropolarimetric database (ESPaDOnS, NARVAL) (Petit+, 2014) ================================================================================ PolarBase - A Database of High-Resolution Spectropolarimetric Stellar Observations Petit P., Paletou F., Mathias P., Glorian JM., Amato A. =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: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . this file polarbase.dat 651 438818 Polarbase database (IRAP) -------------------------------------------------------------------------------- Byte-by-byte Description of file: polarbase.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 I6 --- ID Key to indentify a spectrum (id_spectrum) 8- 39 A32 --- Object Object's Name (object) 41- 50 F10.6 deg RAdeg Right ascension (ICRS) (ra) 52- 63 F12.8 deg DEdeg Declination (ICRS) (dec) 65- 96 A32 --- SpType Object spectral type (spectype) 98-105 F8.4 mag Vmag ? V Magnitude (magnitude) 107-114 F8.1 K Teff ? Effective Temperature (teffective) 116-134 A19 --- r_Teff Effective Temperature Bibcode (ref_teffective) 136-142 F7.4 --- logg ? Logarithm of the surface gravity (logg) 144-162 A19 --- r_logg Logarithm of the surface gravity Bibcode 164-169 F6.3 --- [Fe/H] ? Metallicity (feh) 171-189 A19 --- r_[Fe/H] Metallicity Bibcode (ref_feh) 191-198 F8.3 --- vrot ? Stellar Rotational Velocities (rot) 200-218 A19 --- r_vrot Stellar Rotational Velocities Bibcode (r_rot) 220-230 F11.4 pc Dist ? Distance value (distance) 232-250 A19 --- r_Dist Distance value Bibcode (ref_distance) 252-259 F8.1 km/s RV ? Radial Velocity (radvel) 261-279 A19 --- r_RV ? Radial Velocity Bibcode (r_radvel) 281-312 A32 --- type Object's type (Simbad Classification) 314-377 A64 --- subtype Object's subtype (Simbad Classification) 379-397 A19 "datime" Date Observation's ISO date (date) 399-407 A9 --- Inst Instrument's Name (instrument) 409-413 A5 --- n_Inst Observation Mode (mode_instrument) 415-421 F7.3 h HA ? Hour Angle (ha) 423-430 F8.3 --- Airmass ? Airmass (airmass) 432-438 F7.1 s Exp ? Effective exposure time (texposure) 440-440 A1 --- stokes Stokes Parameter (stokes) 442-448 I7 --- SNR Maximum Signal-to-noise for spectrum (snrmax) 450-454 A5 --- normalized If spectrum is normalized (normalized) 456-456 I1 --- magFlag ? Detection Flag (magnetic_detection) (1) 458-489 A32 --- RUNID RUN ID (RUN_ID) 491-522 A32 --- PIname PI name (PI_name) 524-651 A128 --- url Access URL (url_gwet) -------------------------------------------------------------------------------- Note (1): Detection flags: 0 : N/A, 1 : I Only, 2 : Definite, 3 : Marginal -------------------------------------------------------------------------------- See also: http://polarbase.irap.omp.eu : Polarbase Website History: * 21-Jun-2021: first version received from A.Amato Acknowledgements: Pascal Petit, ppetit(at)irap.omp.eu Jean-Michel Glorian, jglorian(at)irap.omp.eu ================================================================================ (End)