J/A+A/408/L29 Line identification of HD 34700 (Arellano Ferro+, 2003)
The new T Tauri double-lined spectroscopic binary HD 34700.
Arellano Ferro A., Giridhar S.
<Astron. Astrophys. 408, L29 (2003)>
=2003A&A...408L..29A 2003A&A...408L..29A
ADC_Keywords: Binaries, spectroscopic ; Radial velocities ; Spectroscopy
Keywords: Spectroscopic binaries - T Tauri stars
Abstract:
We announce the star HD 34700 to be a double-lined spectroscopic
binary, and find it to be a weak-line T Tauri object. The spectra of
both components are very similar and both show the Li I feature at
6708Å. Strong arguments in favour of the binary nature of the star
as opposed to other possibilities are offered. It is very likely that
the companion is also a T Tauri star of similar mass. We present, in
Table 2, a list of the lines identified and the radial velocities of
the two components for three epochs.
Description:
Identified double lines in the spectrum of HD 34700. Only lines radial
velocities of both the blue and the red components are listed. Only
those lines which have both the components clearly identified and
unaffected by the neighbouring lines are included. The table also
contains the lower excitation potentials and the ratios of line
strengths of the two components, which are consistently of similar
strengths.
Objects:
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RA (2000) DE Designation(s)
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05 19 41.4 +05 38 42 HD 34700
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 46 105 Identified double lines in the spectrum of HD 34700
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Ion Corresponding element of line
6- 13 F8.3 0.1nm Lambda Laboratory wavelength
15- 19 F5.3 eV EpLow Lower excitation potential
21- 25 F5.1 km/s RV(blue) Radial velocity of blue component
27- 31 F5.1 0.1pm EW(blue) Equivalent width of blue component
33- 36 F4.1 km/s RV(red) Radial velocity of red component
38- 42 F5.1 0.1pm EW(red) Equivalent width of red component
44- 46 F3.1 --- EW(blue)/EW(red) Blue to red equivalent width ratio
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Acknowledgements: Armando Arellano Ferro
(End) A. Arellano Ferro [IA-UNAM, Mexico], Patricia Bauer [CDS] 16-Jul-2003