J/A+A/537/A109 BVR light curves of GK Boo and AE For (Zasche+, 2012)
GK Bootis and AE Fornacis: two low-mass eclipsing binaries with dwarf
companions.
Zasche P., Svoboda P., Uhlar R.
<Astron. Astrophys. 537, A109 (2012)>
=2012A&A...537A.109Z 2012A&A...537A.109Z
ADC_Keywords: Binaries, eclipsing ; Photometry, UBVRI
Keywords: binaries: eclipsing - stars: fundamental parameters -
stars: individual: GK Boo, AE For
Abstract:
A study of late-type low-mass eclipsing binaries provides us with
important information about the most common stars in the Universe.
We obtain the first light curves and perform period analyses of two
neglected eclipsing binaries GK Boo and AE For to reveal their basic
physical properties.
We performed both a period analysis of the times of the minima and a
BVR light curve analysis. Many new times of minima for both the
systems were derived and collected from the data obtained by automatic
and robotic telescopes. This allowed us to study the long-term period
changes in these systems for the first time. From the light curve
analysis, we derived the first rough estimates of the physical
properties of these systems.
Objects:
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RA (2000) DE Designation(s) (Per)
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03 08 06.7 -24 45 35 AE For = HIP 14568 (P=0.9182094)
14 38 20.7 +36 32 25 GK Boo = BD+37 2556 (P=0.47777174)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
phot.dat 37 2573 BVR photometry of AE For and GK Boo
min.dat 57 233 Heliocentric minima of AE For and GK Boo
used for the analysis
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Byte-by-byte Description of file: phot.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Star Star name
8 A1 --- Filt [BVR] Filter for the magnitude
10- 22 F13.5 d HJD Heliocentric Julian Date of observation
25- 30 F6.3 mag mag Magnitude in "Band" filter
33- 37 F5.3 mag e_mag Error on magnitude
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Byte-by-byte Description of file: min.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Star Star name
9- 21 F13.5 d HJD ? Heliocentric Julian Date of Minimum (HJD)
23- 29 F7.5 d e_HJD ? Error of HJD
31- 35 A5 --- P/S [prim/sec ] Type of Minimum (primary/secondary)
36- 39 A4 --- Filter Filter Used
41- 57 A17 --- Ref Reference/Observer (1)
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Note (1): the following symbols are used:
PS = Observer: Petr Svoboda
PZ = Observer: Petr Zasche
RU = Observer: Robert Uhlar
ASAS = Pojmanski 2002AcA....52..397P 2002AcA....52..397P, Cat. II/264
Hipparcos = Hipparcos Catalogue, Cat. I/239/
IBVS 5060 = Diethelm, 2001IBVS.5060....1D 2001IBVS.5060....1D
IBVS 5894 = Diethelm, 2009IBVS.5894....1D 2009IBVS.5894....1D
IBVS 5918 = Hubscher et al., 2010IBVS.5918....1H 2010IBVS.5918....1H
IBVS 5965 = Demircan et al., 2011IBVS.5965....1D 2011IBVS.5965....1D
OEJV 107 = Brat et al., 2009OEJV..107....1B 2009OEJV..107....1B
PiOfTheSky = Burd et al. 2005NewA...10..409B 2005NewA...10..409B
SWASP = Pollacco et al. 2006PASP..118.1407P 2006PASP..118.1407P
VSOLJ 37 = Nagai, 2000, Variable Star Bulletin, 37, 2
VSOLJ 39 = Nagai, 2002, Variable Star Bulletin, 39, 5
VSOLJ 40 = Nagai, 2003, Variable Star Bulletin, 40, 1
VSOLJ 42 = Nagai, 2004, Variable Star Bulletin, 42, 1
VSOLJ 43 = Nagai, 2005, Variable Star Bulletin, 43, 1
VSOLJ 44 = Nagai, 2006, Variable Star Bulletin, 44, 1
VSOLJ 45 = Nagai, 2007, Variable Star Bulletin, 45, 1
VSOLJ 47 = Nagai, 2008, Variable Star Bulletin, 47, 1
VSOLJ 50 = Nagai, 2010, Variable Star Bulletin, 50, 1
VSOLJ 51 = Nagai, 2011, Variable Star Bulletin, 51, 1
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Acknowledgements:
Petr Zasche,
(End) Patricia Vannier [CDS] 20-Jan-2012