J/A+A/459/137 Bright Be shell stars (Rivnius+, 2006)
Bright Be shell stars.
Rivnius T., Baade D., Stefl S.
<Astron. Astrophys. 459, 137 (2006)>
=2006A&A...459..137R 2006A&A...459..137R
ADC_Keywords: Stars, Be ; Stars, emission ; Spectroscopy
Keywords: stars: emission line, Be - stars: circumstellar matter -
stars: rotation - stars: statistics
Abstract:
Echelle observations are presented and discussed for 23 of the 27
known "normal" shell stars brighter than about 6.5mag. In addition to
those typical cases, three stars with known transitions between
emission & shell and pure emission line appearance, and three rapidly
rotating B stars without records of line emission (Bn stars) are added
to the sample.
Description:
Shell line parameters of nine Be shell stars of particular interest
are presented, namely either binaries or stars with long-term variable
V/R ratios. The parameters were measured in Ondrejov coude-instrument
data and Heros echelle spectra.
Objects:
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RA (2000) DE Designation(s) (file)
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06 28 57.8 +20 12 44 nu Gem = HD 45542 (table2)
01 43 39.6 +50 41 19 phi Per = HD 10516 (table4)
03 36 29.4 +48 11 33 psi Per = HD 22192 (table5)
03 49 11.2 +24 08 12 28 Tau = HD 23862 (table6)
05 37 38.7 +21 08 33 zeta Tau = HD 37202 (table7)
15 55 30.6 +42 33 58 4 Her = HD 142926 (table8)
15 58 11.4 -14 16 46 48 Lib = HD 142983 (table9)
21 37 04.8 -19 27 58 eps Cap = HD 205637 (table10)
22 57 04.5 +48 41 03 EW Lac = HD 217050 (table11)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 60 45 nu Gem shell line parameters
table4.dat 60 174 phi Per shell line parameters
table5.dat 60 21 psi Per shell line parameters
table6.dat 60 70 28 Tau (Pleione) shell line parameters
table7.dat 60 66 zeta Tau shell line parameters
table8.dat 60 56 4 Her shell line parameters
table9.dat 60 20 48 lib shell line parameters
table10.dat 60 100 eps Cap shell line parameters
table11.dat 60 69 EW Lac shell line parameters
tables.tex 83 979 LaTeX version of the tables
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See also:
III/67 : Catalogue of Be stars (Jaschek+, 1982)
J/A+A/328/551 : Spectroscopic data of 4 Herculis (Koubsky+ 1997)
J/A+AS/129/289 : Long-term spectrophotometry of Be stars (Moujtahid+ 1998)
J/A+A/378/861 : Spectroscopy of Be stars (Chauville+, 2001)
J/other/NewA/10.325 : 2MASS observations of Be stars (Zhang+, 2005)
J/A+A/451/1053 : Fundamental parameters of Be stars (Fremat+, 2006)
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d JD Heliocentric Julian Date
13- 16 F4.2 --- Vpeak ?=- Height of the V peak (Iviolet/Icont)
18- 21 F4.2 --- Rpeak ?=- Height of the R peak (Ired/Icont)
23- 26 F4.2 --- V/R ?=- V/R ratio (1)
28- 32 F5.1 km/s Psep ?=- Peak separation
34- 37 F4.2 --- Cpeak ?=- Height of central peak (Icent/Icont)
(if single or triple peaked)
39- 44 F6.1 km/s vcHa ?=- Central velocity of Hα absorption
46- 51 F6.1 km/s vcHe ?=- Central velocity of HeI6678 absorption
53- 58 F6.1 km/s vcSi ?=- Central velocity of SiII6347 absorption
60 A1 --- Inst [HO]? Instrument (H)eros or (O)ndrejov coude
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Note (1): the V/R ratio characteries the asymetry of the emission profile:
V/R = (Iv-Ic)/(Ir-Ic), ratio between the violet and red peak intensity
of optically thin double emission lines referred to the continuum level.
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Acknowledgements: Thomas Rivinius, T.Rivinius(at)eso.org
(End) Patricia Vannier [CDS] 17-Oct-2006