J/PASP/135/E4201 Low mass ratio contact binaries (Li+, 2023)
The first photometric and spectroscopic studies of ASASSN-V J015428.67+204247.2
and its relation to the population of low mass ratio contact binaries.
Li K.-X., Li K., Liu F., Gao X., Sun G.-Y., Wang X., Yin S.-P.
<Publ. Astron. Soc. Pac., 135, 054201 (2023)>
=2023PASP..135e4201L 2023PASP..135e4201L (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Stars, masses ; Stars, diameters ; Optical
Keywords: eclipsing binary stars - close binary stars - binary stars -
contact binary stars - magnetic stars
Abstract:
We performed photometric, spectroscopic and orbital period
investigations of ASASSN-V J015428.67+204247.2 (hereafter, J015428)
for the first time. The light curves of VRI bands were obtained.
Through the analysis of Wilson-Devinney program, J015428 was found as
an A-subtype medium contact binary system with a low-mass ratio
(q=0.129, f=26.8%). The atmospheric parameters were determined in
spectroscopic analysis. In the orbital period investigations, we found
that the orbital period of J015428 decreases at the rate of
-7.13x10-8day/yr. And the long-term orbital period decrease is
possibly due to angular momentum loss (AML). The absolute parameters
was calculated with the photometric solutions and Gaia distance.
Through the analyses of mass-radius and mass-luminosity diagrams of 54
contact binaries with the low mass ratios (0.096≤q≤0.15), the
evolutionary states of low mass ratio binaries were investigated. The
results by analyzing the energy transfer parameter indicated that
energy transfer rate was a function of mass and bolometric luminosity
ratio. We estimated the initial masses and the densities of two
components and the age of the binary. The analysis of the orbital
angular momentum supposed that J015428 may evolved from a short-period
detached binary by AML. J015428 is in a stable contact stage at
present.
Description:
We carried out spectroscopic, photometric studies and orbital period
investigation of J015428 for the first time.
Eclipsing times and O-C values of ASASSN-V J015428.67+204247.2 and
low mass ratio (0.096≤q≤0.15) contact binaries parameters.
Objects:
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RA (2000) DE Designation(s)
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01 54 28.70 +20 42 46.4 ASASSN-V J015428.67+204247.2 = UCAC4 554-003513
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 102 54 Low mass ratio (0.096≤q≤0.15) contact binaries
table4.dat 62 206 The eclipsing times and O-C values of
ASASSN-V J015428.67+204247.2
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See also:
J/MNRAS/412/1787 : Physical parameters of 62 eclipsing binaries (Deb+, 2011)
J/AJ/143/122 : VR light curves of CK Boo (Yang+, 2012)
J/AJ/146/35 : BVR light curves of DZ Psc (Yang+, 2013)
J/AJ/164/202 : Extremely low mass ratio contact binaries I. (Li+, 2022)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 28 A28 --- Star Star name
30- 34 F5.3 --- q Mass ratio
36- 40 F5.3 d Per Period
42- 46 F5.3 --- f Fill-out factor
48- 51 I4 K T1 Temperature of primary
53- 56 I4 K T2 Temperature of secondary
58- 61 F4.2 Msun M1 Mass of primary
63- 66 F4.2 Msun M2 Mass of secondary
68- 71 F4.2 Rsun R1 Radius of primary
73- 76 F4.2 Rsun R2 Radius of secondary
78- 82 F5.2 Lsun L1 Luminosity of primary
84- 87 F4.2 Lsun L2 Luminosity of secondary
89- 94 F6.4 --- Jspin/Jorb Spin to orbital angular momentum ratio
97-102 A6 --- Ref Reference (1)
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Note (1): References as follows:
1 = Gazeas et al. (2006AcA....56..127G 2006AcA....56..127G)
2 = Cetinkaya & Soydugan (2017, AIP Conf. Ser. 1815, Turkish Physical
Society 32nd Int. Physics Congress (Melville, NY: AIP) 080010)
3 = Li et al. (2022AJ....164..202L 2022AJ....164..202L, Cat. J/AJ/164/202)
4 = Christopoulou et al. (2022MNRAS.512.1244C 2022MNRAS.512.1244C)
5 = Deb & Singh (2011MNRAS.412.1787D 2011MNRAS.412.1787D, Cat. J/MNRAS/412/1787)
6 = Senavci et al. (2008NewA...13..468S 2008NewA...13..468S)
7 = Yang & Qian (2015AJ....150...69Y 2015AJ....150...69Y)
8 = Zhu et al. (2011AJ....142..124Z 2011AJ....142..124Z)
9 = Kandulapati et al. (2015MNRAS.446..510K 2015MNRAS.446..510K)
10 = Kandulapati et al. (2015MNRAS.446..510K 2015MNRAS.446..510K)
11 = Yang et al. (2012AJ....143..122Y 2012AJ....143..122Y, Cat. J/AJ/143/122)
12 = Kjurkchieva et al. (2018AJ....156...77K 2018AJ....156...77K)
13 = Wadhwa et al. (2021RAA....21..235W 2021RAA....21..235W)
14 = Qian & Yang (2005MNRAS.356..765Q 2005MNRAS.356..765Q)
15 = Tian et al. (2019PASP..131h4203T 2019PASP..131h4203T)
16 = Wadhwa (2005Ap&SS.300..439W 2005Ap&SS.300..439W)
17 = Qian & Yang (2004AJ....128.2430Q 2004AJ....128.2430Q)
18 = Popov et al. (2021RAA....21..225P 2021RAA....21..225P)
19 = Yang et al. (2005PASJ...57..983Y 2005PASJ...57..983Y)
20 = this paper
21 = Rucinski et al. (2001AJ....122.1974R 2001AJ....122.1974R)
22 = Zola et al. (2004AcA....54..299Z 2004AcA....54..299Z)
23 = Yang et al. (2009AJ....138..540Y 2009AJ....138..540Y)
24 = Qian et al. (2005AJ....130..224Q 2005AJ....130..224Q)
25 = Liu et al. (2014NewA...31...60L 2014NewA...31...60L)
26 = Li & Qian (2013NewA...21...46L 2013NewA...21...46L)
27 = Qian et al. (2008AJ....136.1940Q 2008AJ....136.1940Q)
28 = Qian et al. (2011AJ....141..151Q 2011AJ....141..151Q)
29 = Yang et al. (2013AJ....146...35Y 2013AJ....146...35Y, Cat. J/AJ/146/35)
30 = Acerbi et al. (2014NewA...31....1A 2014NewA...31....1A)
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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- 11 F11.5 d BJD Barycentric Julian day (BJD-2400000)
15- 21 F7.5 d e_BJD Error on BJD
25- 32 F8.1 --- E Eclipsing time
36- 43 F8.5 --- O-C O-C value
48- 55 F8.5 --- Res Residual
60- 62 A3 --- Ref Reference (1)
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Note (1): Referecnes as follows:
(1) = ASAS
(2) = CRTS
(3) = ASAS-SN
(4) = TESS
(5) = Our data
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 18-Sep-2023