J/BaltA/21/219 Spectroscopy of ups Sgr (Kipper+, 2012)
High-resolution spectroscopy of the hydrogen-deficient binary υ Sgr.
Kipper T., Klochkova V.G.
<Baltic Astron., 21, 219-240 (2012)>
=2012BaltA..21..219
ADC_Keywords: Stars, Be ; Stars, atmospheres ; Abundances
Keywords: stars: atmospheres - stars: individual: upsilon Sgr
Abstract:
The high resolution spectra of hydrogen-deficient binary υ Sgr
are analyzed. The atmospheric parameters are Teff= 12300±200K,
logg=2.5±0.5 and ξt=5-15km/s depending on the element.
Description:
Our high resolution spectra (R=45000) were obtained with the Nasmyth
Echelle Spectrograph NES permanently located at the Nasmyth focus of
the 6 meter telescope of the Special Astrophysical Observatory.
Objects:
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RA (2000) DE Designation(s)
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19 21 43.62 -15 57 18.1 ups Sgr = HD 181615
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 76 62 The lines with P Cygni profiles in the spectrum
of υ Sgr
table7.dat 38 667 Atomic data for υ Sgr
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 0.1nm lam.a Absorption line wavelength
10- 13 F4.1 km/s RV.a Radial velocity for absorption line
15- 18 F4.1 pm EW.a Equivalent width for absorption line
20- 27 F8.3 0.1nm lam.R Red line wavelength
29- 32 F4.1 km/s RV.R Radial velocity for red line
34- 37 F4.1 pm EW.R Equivalent width for red line
39- 46 F8.3 0.1nm lam.B ? Blue line wavelength
48- 52 F5.1 km/s RV.B ? Radial velocity for blue line
54- 56 F3.1 pm EW.B ? Equivalent width for blue line
58- 61 A4 --- El Identification for element
63- 70 F8.3 0.1nm lam.el Identification for wavelength
72- 76 F5.2 [-] eps(low) Lower value for abundance logε (H=12)
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- El Element
8- 15 F8.2 0.1nm lambda Wavelength
17- 21 F5.2 eV EPi Lower level excitation potential
23- 27 F5.2 [-] loggf Oscillator strength
29- 32 F4.1 pm EW Equivalent width
34- 38 F5.2 [-] logeps Abundance (calculated assuming
Teff=12000K, logg=2.5)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Dec-2012