J/MNRAS/469/2089 Radial velocity curves of 7 KIC (Dimitrov+, 2017)
Simultaneous solutions of Kepler light curves and radial velocity curves of
seven heartbeat variables.
Dimitrov D.P., Kjurkchieva D.P., Iliev I.K.
<Mon. Not. R. Astron. Soc., 469, 2089-2101 (2017)>
=2017MNRAS.469.2089D 2017MNRAS.469.2089D (SIMBAD/NED BibCode)
ADC_Keywords: Stars, variable ; Radial velocities
Keywords: binaries: general - binaries: spectroscopic -
stars: variables: general
Abstract:
In this paper, we present high- and middle-resolution spectral
observations of seven heartbeat (HB), highly eccentric, Kepler
binaries: four of them (KIC 3230227, KIC 03547874, KIC 03749404, KIC
07672068) are SB2 stars and the remaining three (KIC 04949194, KIC
05960989, KIC 10092506) are SB1 stars. The flux amplitudes of their HB
signals are from 0.001 to 0.01. Five targets of the sample with
eccentricity above 0.64 show tidally induced oscillations, which are
harmonics of the orbital period. The orbital and global parameters of
all targets were determined as a result of simultaneous modelling of
our spectral observations and Kepler photometric data. They exhibit
that the masses and radii of some target components do not obey the
temperature-mass-radius relation of main-sequence stars. Although our
targets do not obey precisely the theoretical period-eccentricity
relation, they confirm the previous conclusion that HB stars draw the
upper envelope of the eccentricity-period distribution. We did not
find simple empirical dependences of the amplitude of the HB signal on
the orbital and global parameters of the targets.
Description:
Our spectral observations were carried out over 24 nights during
2011-2015 with the 2-m telescope of the Rozhen Observatory using the
Coude spectrograph or FoReRo reducer.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 99 7 Information for the targets from the MAST
tablea.dat 56 124 Radial velocities (Tables A1-A7 of the paper)
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC Kepler ID
10- 11 I2 h RAh Right ascension (J2000)
13- 14 I2 min RAm Right ascension (J2000)
16- 21 F6.3 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 34 F5.2 arcsec DEs Declination (J2000)
36- 41 F6.3 mag r'mag SDSS r' magnitude
43- 48 F6.3 mag Kpmag Kepler magnitude
50- 55 F6.3 mag Jmag 2MASS J magnitude
57- 60 I4 K Tm Mean temperature
62- 66 F5.3 [cm/s2] loggm Surface gravity
68- 73 F6.3 [-] [Fe/H] Metallicity
75- 76 I2 --- LC Number of observed quarters with
long cadence (LC)
78 I1 --- SC Number of observed quarters with
short cadence (SC)
80- 89 F10.7 d Per Period (from table4)
91- 99 F9.7 d e_Per Error on the period (from table4)
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Byte-by-byte Description of file: tablea.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [KIC]
5- 12 I8 --- KIC Kepler ID
14- 28 F15.7 d JD Julian date
29- 34 F6.4 --- Phase Phase
36- 41 F6.1 km/s RV1 Radial velocity of the primary
43- 45 F3.1 km/s e_RV1 Radial velocity of the primary error
47- 52 F6.1 km/s RV2 ? Radial velocity of the secondary
54- 56 F3.1 km/s e_RV2 ? Radial velocity of the secondary error
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Apr-2020