J/MNRAS/396/2194 Radial velocity curve of V440 Per (Baranowski+, 2009)
V440 Per: the longest-period overtone Cepheid.
Baranowski R., Smolec R., Dimitrov W., Kwiatkowski T.,
Schwarzenberg-Czerny A., Bartczak P., Fagas M., Borczyk W., Kaminski K.,
Moskalik P., Ratajczak R., Rozek A.
<Mon. Not. R. Astron. Soc., 396, 2194-2200 (2009)>
=2009MNRAS.396.2194B 2009MNRAS.396.2194B
ADC_Keywords: Stars, variable ; Radial velocities
Keywords: hydrodynamics - methods: data analysis - techniques: spectroscopic -
stars: individual: V440 Per - stars: oscillations - Cepheids
Abstract:
440 Per is a Population I Cepheid with a period of 7.57d and
low-amplitude, almost sinusoidal light and radial velocity curves.
With no reliable data on the first harmonic, its pulsation mode
identification remained controversial. We obtained a radial velocity
curve of V440 Per with our new high-precision and high-throughput
Poznan Spectroscopic Telescope.
Description:
The PST is located in Poland at the Borowiec station, 20km south from
Poznan city, at a meagre elevation of 123m above sea level. The PST
consists of parallel twin 0.4-m Newton telescopes of the f ratio 4.5,
fixed on a single parallactic fork mount. In total 158 radial velocity
measurements of V440 Per were obtained with the PST from 2007 August
15 to 2008 July 03.
Objects:
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RA (2000) DE Designation(s)
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02 23 51.7 +55 21 53 V440 Per = HD 14662
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 24 158 Poznan Spectroscopic Telescope (PST)
radial velocities of V440 Per
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 F10.4 d MJD Modified Julian date
13- 17 F5.2 km/s DRV Differential radial velocity, zero shifted by
about -26.3±0.2km/s
20- 24 F5.2 km/s DRVc Differential radial velocity, corrected for
instrumental effects (see text)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 02-Nov-2009