J/ApJS/194/38 Radial velocities of 11 field RR Lyrae (For+, 2011)
Radial velocities and pulsation ephemerides of 11 field RR Lyrae stars.
For B.-Q., Preston G.W., Sneden C.
<Astrophys. J. Suppl. Ser., 194, 38 (2011)>
=2011ApJS..194...38F 2011ApJS..194...38F
ADC_Keywords: Stars, variable ; Radial velocities
Keywords: stars: horizontal-branch - stars: Population II -
stars: variables: RR Lyrae - techniques: radial velocities
Abstract:
We present new radial velocities (RVs), improved pulsation periods,
and reference epochs of 11 field RR Lyrae ab-type variables: AS Vir,
BS Aps, CD Vel, DT Hya, RV Oct, TY Gru, UV Oct, V1645 Sgr, WY Ant,
XZ Aps, and Z Mic. This study is based on high-resolution spectra
obtained with the echelle spectrograph of the 2.5m du Pont telescope
at Las Campanas Observatory. We obtained ∼200 spectra per star (i.e.,
a total of ∼2300 spectra), distributed more or less uniformly
throughout their pulsation cycles. RV curves and photometric light
curves phased to our new ephemerides are presented for all program
stars.
Description:
The observations were made with echelle spectrograph of the du Pont
2.5m telescope at the Las Campanas Observatory (LCO) during 2006-2009.
The total wavelength coverage is 3500-9000Å.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 65 11 RR Lyrae stars studied
table4.dat 41 2291 Radial velocities
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See also:
III/176 : RR Lyrae Metallicities (Layden 1994)
J/MNRAS/396/553 : Galactic RR Lyrae data (Dambis, 2009)
J/AJ/136/1645 : Spectroscopy of bright QUEST RR Lyrae stars (Vivas+, 2008)
J/A+A/460/459 : Radial velocities of LMC RR Lyrae (Borissova+, 2006)
J/AJ/132/1714 : Photometric and Spectroscopic study of TY Gru (Preston+,
2006)
J/A+A/423/97 : LMC RR Lyrae radial velocities (Borissova+, 2004)
J/A+AS/113/483 : Photometric and radial velocity of RRLyr stars (Carrillo+
1997)
J/A+AS/125/321 : RR Lyrae radial velocities and [Fe/H] II. (Solano+ 1997)
J/AJ/108/1016 : Kinematics of local RR lyrae stars. I. (Layden, 1994)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 12 I2 h RAh Right Ascension J2000 (hours)
14- 15 I2 min RAm Right Ascension J2000 (minutes)
17- 21 F5.2 s RAs Right Ascension J2000 (seconds)
23 A1 --- DE- Declination J2000 (sign)
24- 25 I2 deg DEd Declination J2000 (degrees)
27- 28 I2 arcmin DEm Declination J2000 (minutes)
30- 33 F4.1 arcsec DEs Declination J2000 (seconds)
35- 39 F5.2 mag Vmax Maximum light in V from ASAS
40 A1 --- n_Vmax [d] Value of Vmax and Vamp from Preston et al.
(2006AJ....132.1714P 2006AJ....132.1714P)
42- 45 F4.2 mag Vamp Amplitude in V from ASAS
48- 54 A7 --- Bl [Blazhko ] Blazkho effect
56- 63 F8.6 d Per Period (from table5 of paper)
65 I1 10-6d e_Per Error on Period (from table5 of paper)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 23 F13.5 d HJD Heliocentric Julian Dates at midpoint
25- 28 F4.2 --- Phase Phase
30- 36 F7.2 km/s HRV Radial velocity
38- 41 F4.2 km/s e_HRV Uncertainty in HRV
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 01-Aug-2011