J/AJ/130/234 BVRI photometry and radial velocities of AV Del (Mader+, 2005)
Optical photometry and spectroscopy of the suspected ``Cool Algol'' AV Delphini:
determination of the physical properties.
Mader J.A., Torres G., Marschall L.A., Rizvi A.
<Astron. J., 130, 234-245 (2005)>
=2005AJ....130..234M 2005AJ....130..234M (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry, UBVRI ; Radial velocities
Keywords: eclipsing - binaries: spectroscopic - stars: fundamental parameters -
stars: individual (AV Delphini)
Abstract:
We present new spectroscopic and BVRI photometric observations of the
double-lined eclipsing binary AV Del (period=3.85days) conducted over
six observing seasons.
Description:
AV Del was observed spectroscopically at the Harvard-Smithsonian
Center for Astrophysics (CfA) from 1998 July through 2003 November,
using an echelle spectrograph on the 1.5m Tillinghast reflector at the
F. L. Whipple Observatory on Mount Hopkins (Arizona). Photometric
imaging of AV Del was conducted between 1998 August and 1999 January
at Gettysburg College Observatory, Gettysburg (Pennsylvania), using a
16inch (40cm) f/11 Ealing Cassegrain reflector.
Objects:
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RA (2000) DE Designation(s)
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20 45 31.5 +11 10 27 AV Del = V* AV Del
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 20 132 Differential magnitudes in the B band, in the
sense variable minus comparison
table4.dat 20 138 Differential magnitudes in the V band, in the
sense variable minus comparison
table5.dat 20 139 Differential magnitudes in the R band, in the
sense variable minus comparison
table6.dat 20 136 Differential magnitudes in the I band, in the
sense variable minus comparison
table7.dat 49 68 Radial velocity measurements in the barycentric
frame
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Byte-by-byte Description of file: table3.dat table4.dat table5.dat table6.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian Date
14- 18 F5.3 mag Dmag Differential magnitude
20 A1 --- Band [BVRI] Photometric band
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Byte-by-byte Description of file: table7.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 F7.5 --- Phase Phase
22- 28 F7.2 km/s RV1 Primary radial velocity
30- 34 F5.2 km/s (O-C)1 Primary (O-C) residual (1)
36- 42 F7.2 km/s RV2 Secondary radial velocity
44- 49 F6.2 km/s (O-C)2 Secondary (O-C) residual (1)
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Note (1): Calculated from the simultaneous photometric and spectroscopic
solution.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 21-Oct-2005