J/A+A/343/806 The trapezium system BD+00 1617 (Munari+ 1999)
Kinematics and binaries in young stellar aggregates.
I. The trapezium system BD+00 1617 in Bochum 2
Munari U., Tomasella L.
<Astron. Astrophys. 343, 806 (1999)>
=1999A&A...343..806M 1999A&A...343..806M (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, spectroscopic ; Radial velocities ; Spectroscopy
Keywords: binaries: spectroscopic - stars: early type -
stars: fundamental parameters - stars: kinematics -
Galaxy: open clusters and associations: individual: Bochum 2 -
stars: individual: BD +00 1617
Description:
Internal kinematics, spectroscopic binaries and galactic motion are
investigated for the trapezium system BD+00 1617 (which lies at the
heart of the young open cluster Bochum 2) by means on 73 high
resolution Echelle+CCD spectra secured over the period 1994-98. Two of
the three O-type member stars are found to be binaries on close and
highly eccentric orbits of 6.8 and 11.0 day period.
Tables 2 and 3, that are available only in electronic form, give the
journal of the observations and the individual radial velocities.
Objects:
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RA (2000) DE Designation(s)
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06 48 49.4 +00 22 53 BD+00 1617
06 48 54 +00 23 Bochum 2 = C 0646+004
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 80 73 Journal of Observations
table3.dat 93 73 Heliocentric radial velocities
tables.ps 72 430 PostScript version of the tables
tables.tex 139 115 LaTeX version of the tables
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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- 5 I5 --- Nsp Spectrum number from the Asiago telescope
logbook
7- 8 I2 --- Star Program star identification number
10- 17 A8 "DD/MM/YY" OBSDate Date of the observation
19- 29 F11.3 d HJD Heliocentric Julian date
31 A1 --- Res [fb] Resolution (1)
33- 34 I2 --- Range [1/10] Echelle spectral wavelength range (2)
36- 37 I2 --- S/N Signal-to-noise ratio of the continuum
close to NaI D
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Note (1): f: full-resolution spectrum (0.22Å at Hβ)
b: 2X2 binned spectrum (0.32Å at Hβ)
Note (2): 1: 9900-7600Å
2: 8130-5800Å
3: 7850-5375Å
4: 6900-4240Å
5: 6695-4410Å
6: 5835-3800Å
7: 6900-4320Å
8: 6695-4320Å
9: 6695-4160Å
10: 5990-3865Å
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Star Program star identification number
4- 8 I5 --- Nsp Spectrum number from the Asiago telescope
logbook (see table2.dat)
10- 20 F11.3 d HJD Heliocentric Julian date
22- 26 F5.1 km/s HRV Heliocentric radial velocity
28- 31 F4.1 km/s e_HRV Associated error on the HRV measurement
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Acknowledgements: Lina Tomasella
(End) Patricia Bauer [CDS] 03-Dec-1998