III/273 Radial velocities of 107 B8-A0 stars (Albitzky, 1947)
Radial velocities of 107 B8-A0 stars.
Albitzky V.A.
<Izv. Krym. Astrofiz. Obs. 1, 23 (1947)>
=1947IzKry...1...23A 1947IzKry...1...23A
=2014yCat.3273....0A 2014yCat.3273....0A
ADC_Keywords: Radial velocities ; Stars, high-velocity
Keywords: velocities: stars: optical
Abstract:
The observations of radial velocities of B8-A0 stars were produced in
1932-1937 with one-prism spectrograph and short camera giving a
dispersion of 75Å/mm at Hγ. When reducing the observations
the systematic error as described in our previous paper (I) has been
taken into account. From the comparison of the radial velocities of 7
stars in common with two catalogues the systematic correction to our
radial velocities was deduced, viz.+0.44±1.51km/s in the sense
Moore-Simeis. In table XII there are given the final radial velocities
for 91 stars with mean value of p.e. equal to ±3.57km/s. In table
XII are given observed velocities for 16 stars with variable radial
velocities. Very large velocity of the star HD 161817 leads to the
conclusion that this star belongs to the class of high-velocity stars.
Description:
In Table XII are given the final values of the observed radial
velocities for 107 stars. For 16 of these stars the radial velocities
have been admitted to be variable which makes 14% of the total number
of the stars observed. This percentage is smaller than that usually
accepted, viz. about 25-30%; but with so small dispersion as ours one
must be more careful in announcing the variability of a radial
velocity. The data of the Table XII are self-explanatory; the
magnitudes are visual and the spectral types are those of H.D. in the
column 8 are given the numbers of spectrograms measured. In the
remarks betGC signifies Burnham's General catalogue of Double Stars,
etc.; Moore - J.H. Moore, General Catalogue of the Radial Velocities
of Star, etc.; D.D.O. - Publications of the David Dunlap Observatory,
University of Toronto, Vol. I, Nr. 3. (2). For 91 stars with adopted
constant velocities the mean value of p.e's is ±3.57km/s and the
number of spectrograms per star is 5.3. For the catalogue D.D.O.
corresponding data are ±2.85km/s and 5.8 (for stars B8-A0). The
lower precision of the present catalogue may be explained by the small
dispersion of our spectrograph: 75Å/mm instead of 33-66Å/mm for
D.D.O.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table12.dat 101 107 The catalogue of radial velocities
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See also:
III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)
Byte-by-byte Description of file: table12.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD Henry Draper Catalog (HD) number
8- 9 I2 h RAh Hours RA, equinox B1900, epoch 1900.0
11- 14 F4.1 0.1min RAm Deci-Minutes RA, equinox B1900, epoch 1900.0
16 A1 --- DE- Sign Dec, equinox B1900, epoch 1900.0
17- 18 I2 deg DEd Degrees Dec, equinox B1900, epoch 1900.0
20- 21 I2 arcmin DEm Minutes Dec, equinox B1900, epoch 1900.0
23- 26 F4.2 mag mpv ? Photovisual magnitude
28- 30 A3 --- SpT MK Spectral type for HD
32- 37 F6.1 km/s RV [-361/46]? Radial Velocity
39- 41 F3.1 km/s e_RV [1/7]? Mean standard error in Radial Velocity
43 I1 --- o_RV [3/8]? Number of measurements of Radial Velocity
45-101 A57 --- Note Notes and remarks (1)
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Note (1):
* betGC means Burnham's General catalogue of Double Stars, etc.;
* Moore refers to J.H.Moore, General Catalogue of the Radial Velocities
of Star, etc.;
* D.D.O. refers to Publications of the David Dunlap Observatory,
University of Toronto, Vol. I, Nr. 3. (2).
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Acknowledgements:
Aleksey A. Shlyapnikov, aas(at)crao.crimea.ua
(End) Aleksey A. Shlyapnikov [CrAO, Ukraine], Patricia Vannier [CDS] 09-May-2014