J/AJ/158/193 Photometric data of V582 Lyr and V1016 Oph (Cheng+, 2019)
Photometric and spectroscopic studies of V582 Lyr and V1016 Oph.
Cheng Y., Zhang L.-Y., Han X.L., Long L., Lu H., Yue Q., Jiang L.
<Astron. J., 158, 193 (2019)>
=2019AJ....158..193C 2019AJ....158..193C (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry, UBVRI
Keywords: binaries: close - binaries: eclipsing -
stars: individual (V582 Lyr, V1016 Oph)
Abstract:
We present new CCD photometric light curves about two eclipsing binaries
of V582 Lyr and V1016 Oph. Our observations were carried out by the SARA
91.4 cm telescope of America in 2016 and the 60 cm telescope of Chile
in 2018. V582 Lyr's spectra type was classified as K5, and its radial
velocity was determined using the LAMOST spectral survey. There are
absorptions in the observed Hα line and excess emissions in the
subtracted Hα line, which show weak chromospheric activity. We
obtained the updated ephemeris information for V582 Lr and V1016 Oph, and
found that their orbital periods are both decreasing. We concluded that
the decreased rate is -0.474 (±0.011)x10-7 days/yr for V582 Lyr and
3.460 (±0.014)x10-7 days/yr for V1016 Oph. For V582 Lyr, the period
variation was interpreted as a mass transfer from the secondary component
to the primary one, and the corresponding rate is
dM2/dt=-1.10 (±0.03)x10-7 M☉/yr. For V1016 Oph, we explain it
by transferring from the primary component to the secondary one, and
the corresponding rate is dM1/dt=-2.69 (±0.04)x10-7 M☉/yr.
The photometric solution of V1016 Oph was obtained by analyzing the CCD
photometry with the Wilson-Devinney program. We also obtained the orbital
parameters of V1016 Oph by simultaneously analyzing our BVRI light curves
and radial-velocity curve from the LAMOST low-resolution spectral survey.
Finally, our orbital solution shows that they are contact eclipsing
binaries with contact factors of 3.35 (±0.08)% for V582 Lyr and
41.0 (±0.1)% for V1016 Oph.
Description:
We obtained a set of charge-coupled device (CCD) photometric observation
data for V582 Lyr in the BVRI bands on 2016 July 4 with the 91.4 cm
telescope of the Southeastern Association for Research in Astronomy (SARA)
at Kitt Peak National Observatory (Keel et al. 2017PASP..129a5002K 2017PASP..129a5002K).
The BVRI filters are a Bessel system with an effective field of view
of about 15'x15' and 1024x1024 CCD pixel. The exposure times of V582 Lyr
are 90 s in the B band, 60 s in the V band, and 30 s in the Rand I bands.
Objects:
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RA (ICRS) DE Designation(s)
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18 55 38.20 +40 58 57.2 V582 Lyr = V* V582 Lyr
16 16 38.44 -05 21 18.2 V1016 Oph = V* V1016 Oph
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 105 356 Original photometric data of V582 Lyr observed
on 2016 July 4 and V1016 Oph observed on 2018
April 23, 27 and May 3
table5.dat 63 3107 Minimum times and their relevant parameters
of V582 Lyr and V1016 Oph
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See also:
J/other/IBVS/5438 : 162-nd list of minima of eclipsing binaries
(Diethelm, 2003)
J/other/IBVS/5543 : 163-nd list of minima of eclipsing binaries
(Diethelm+, 2004)
J/other/IBVS/5592 : Eclipsing binary stars photoelectric minima (Krajci+, 2005)
J/AJ/147/45 : Kepler mission. IV. Eclipse times for close binaries
(Conroy+, 2014)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Object identifier (V582 Lyr or V1016 Oph)
11- 26 F16.8 d HJD-B ? Heliocentric Julian Date of B band observation
28- 33 F6.3 mag DBmag [-1.127/1.839]? Differential B band magnitude
35- 50 F16.8 d HJD-V ? Heliocentric Julian Date of V band observation
52- 57 F6.3 mag DVmag [-2.513/1.383]? Differential V band magnitude
59- 74 F16.8 d HJD-R ? Heliocentric Julian Date of R band observation
76- 81 F6.3 mag DRmag [-0.236/1.002]? Differential R band magnitude
83- 98 F16.8 d HJD-I ? Heliocentric Julian Date of I band observation
100-105 F6.3 mag DImag [-0.633/0.583]? Differential I band magnitude
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- ID Object identifier (V582 Lyr or V1016 Oph)
11- 20 F10.4 d HJD [46907.542/58241.876] Heliocentric Julian Date;
HJD-2400000
22- 27 F6.4 d e_HJD [0.0/0.0143]? Uncertainty in HJD
29- 31 A3 --- Min Minimum type (primary or secondary)
33- 35 A3 --- Type Observation type (1)
37- 43 F7.1 --- Cycle [-3782/24587.5] Cycle number
45- 51 F7.4 --- (O-C)I [-0.0333/0.0194] The (O-C)I values of linear fit
residuals
53- 59 F7.4 --- (O-C)II [-0.0239/0.0101] The (O-C)II values of
polynomial fit residuals
61- 63 I3 --- Ref [1/27] Reference code (2)
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Note (1): Observation type as follows:
CCD = Charge-coupled device;
vis = Visual observation.
Note (2): Reference as follows:
1 = Paschke & Brat (2006OEJV...23...13P 2006OEJV...23...13P);
2 = Blattler & Diethelm (2000IBVS.4985....1B 2000IBVS.4985....1B);
3 = Billings et al. (2001IBVS.5029....1B 2001IBVS.5029....1B);
4 = Brot L et al. 2007 (2007OEJV...74....1B 2007OEJV...74....1B);
5 = Diethelm (2003, J/other/IBVS/5438);
6 = Krajci (2005, J/other/IBVS/5592);
7 = Diethelm (2004, J/other/IBVS/5543);
8 = Nelson 2007 (2007IBVS.5760....1N 2007IBVS.5760....1N);
9 = Diethelm 2007a (2007IBVS.5781....1D 2007IBVS.5781....1D);
10 = Diethelm 2007b (2007IBVS.5837....1D 2007IBVS.5837....1D);;
11 = Conroy et al., (2014, J/AJ/147/45);
12 = Diethelm 2010a (2010IBVS.5920....1D 2010IBVS.5920....1D);
13 = Nelson 2011 (2011IBVS.5966....1N 2011IBVS.5966....1N);
14 = Diethelm 2010b (2010IBVS.5945....1D 2010IBVS.5945....1D);
15 = Hubscher et al. 2012 (2012IBVS.6010....1H 2012IBVS.6010....1H);
16 = Diethelm 2012 (2012IBVS.6029....1D 2012IBVS.6029....1D);
17 = Lampens et al. 2017 (2017IBVS.6230....1L 2017IBVS.6230....1L);
18 = Hubscher et al. 2017 (2017IBVS.6196....1H 2017IBVS.6196....1H);
19 = Our paper;
20 = Diethelm 2005 (2005IBVS.5653....1D 2005IBVS.5653....1D);
21 = Krajci 2006 (2006IBVS.5690....1K 2006IBVS.5690....1K);
22 = Paschke 2009 (2009OEJV..116....1P 2009OEJV..116....1P);
23 = Diethelm 2009 (2009IBVS.5894....1D 2009IBVS.5894....1D);
24 = Paschke 2012 (2012OEJV..142....1P 2012OEJV..142....1P);
25 = Diethelm 2011 (2011IBVS.5992....1D 2011IBVS.5992....1D);
26 = Diethelm 2012 (2012IBVS.6029....1D 2012IBVS.6029....1D);
27 = Paschke 2013 (2013OEJV..155....1P 2013OEJV..155....1P).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 14-Jan-2020