J/AJ/130/2838 Velocity and light curves of RW Lac (Lacy+, 2005)
Absolute properties of the eclipsing binary star RW Lacertae.
Lacy C.H.S., Torres G., Claret A., Vaz L.P.R.
<Astron. J., 130, 2838-2846 (2005)>
=2005AJ....130.2838L 2005AJ....130.2838L
ADC_Keywords: Binaries, eclipsing ; Binaries, spectroscopic ;
Radial velocities ; Photometry
Keywords: binaries: eclipsing - binaries: spectroscopic - stars: evolution -
stars: fundamental parameters - stars: individual (RW Lacertae)
Abstract:
We present 3004 differential observations in the V bandpass measured
by a robotic telescope, as well as 36 pairs of radial velocities from
high-resolution spectroscopic observations, of the detached,
eccentric, EA-type, 10.37day period, double-lined eclipsing binary
star RW Lac.
Description:
Beginning in 2000 mid-November, Lacy began photometric observations in
the V bandpass with the URSA telescope, an automated photometric
telescope at Kimpel Observatory on the campus of the University of
Arkansas at Fayetteville.
Objects:
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RA (2000) DE Designation(s)
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22 44 57.1 +49 39 28 RW Lac = V* RW Lac
22 44 33.0 +49 37 36 GSC 03629-00438
22 45 36.0 +49 42 35 GSC 03629-02473 = TYC 3629- 2473-1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 45 10 URSA dates of minima of RW Lac
table2.dat 46 36 Radial velocities of RW Lac and residuals from
the final spectroscopic orbit
table4.dat 25 3004 Differential V magnitudes for RW Lac
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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- 8 F8.3 yr Date Date of minimum
10- 22 F13.5 d HJD Heliocentric Julian Date of minimum
24- 30 F7.5 d e_HJD Error in HJD
32- 34 I3 --- Epoch Epoch (1)
36 I1 --- Type [1/2] Type of eclipse
(1 for primary, 2 for secondary)
38- 45 F8.5 d O-C Observed-Computed time of minimum (1)
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Note (1): Epoch and O-C values are relative to the eclipse ephemerides
for primary and secondary eclipses given in the text.
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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- 12 F12.4 d HJD Heliocentric Julian Date
14- 20 F7.2 km/s RVA Radial velocity for the primary star A
22- 28 F7.2 km/s RVB Radial velocity for the secondary star B
30- 34 F5.2 km/s (O-C)A Velocity residuals for the primary star A
36- 40 F5.2 km/s (O-C)B Velocity residuals for the secondary star B
42- 46 F5.3 --- Phase Orbital Phase
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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- 7 F7.5 --- Phase Phase
9- 13 F5.3 mag dVmag Differential V band magnitude (1)
15- 25 F11.5 d HJD Heliocentric Julian Date
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Note (1): The comparison stars are GSC 03629-00438 (V=11.0mag) and
GSC 03629-02473 (V=11.4mag).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 15-Sep-2006