scholarly journals Analysis of TESS field eclipsing binary star V948 Her: a pulsating or non-pulsating star?

2021 ◽  
Author(s):  
Filiz KAHRAMAN ALICAVUS ◽  
Ozlem EKINCI
Keyword(s):  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star

Absolute Properties of the Eclipsing Binary Star RW Lacertae

2005 ◽  
Vol 130 (6) ◽  
pp. 2838-2846 ◽  
Author(s):  
Claud H. Sandberg Lacy ◽  
Guillermo Torres ◽  
Antonio Claret ◽  
Luiz Paulo Ribeiro Vaz
Keyword(s):  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star

Absolute Properties of the Main-Sequence Eclipsing Binary Star WW Camelopardalis

2002 ◽  
Vol 123 (2) ◽  
pp. 1013-1022 ◽  
Author(s):  
Claud H. Sandberg Lacy ◽  
Guillermo Torres ◽  
Antonio Claret ◽  
Jeffrey A. Sabby
Keyword(s):  
Main Sequence ◽  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star

ABSOLUTE PROPERTIES OF THE ECLIPSING BINARY STAR V335 SERPENTIS

2012 ◽  
Vol 144 (2) ◽  
pp. 63 ◽  
Author(s):  
Claud H. Sandberg Lacy ◽  
Francis C. Fekel ◽  
Antonio Claret
Keyword(s):  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star

scholarly journals The TESS light curve of the eccentric eclipsing binary 1SWASP J011351.29+314909.7 – no evidence for a very hot M-dwarf companion

2020 ◽  
Vol 498 (1) ◽  
pp. L15-L19
Author(s):  
Matthew I Swayne ◽  
Pierre F L Maxted ◽  
Vedad Kunovac Hodžić ◽  
Amaury H M J Triaud
Keyword(s):  
Light Curve ◽  
Effective Temperature ◽  
Binary Star ◽  
Mass Star ◽  
Primary Star ◽  
Eclipsing Binary ◽  
Low Mass ◽  
Stellar Models ◽  
Eclipsing Binary Star ◽  
M Dwarf

ABSTRACT A 2014 study of the eclipsing binary star 1SWASPJ011351.29+314909.7 (J0113+31) reported an unexpectedly high effective temperature for the M-dwarf companion to the 0.95-M⊙ primary star. The effective temperature inferred from the secondary eclipse depth was ∼600 K higher than the value predicted from stellar models. Such an anomalous result questions our understanding of low-mass stars and might indicate a significant uncertainty when inferring properties of exoplanets orbiting them. We seek to measure the effective temperature of the M-dwarf companion using the light curve of J0113+31 recently observed by the Transiting Exoplanet Survey Satellite (TESS). We use the pycheops modelling software to fit a combined transit and eclipse model to the TESS light curve. To calculate the secondary effective temperature, we compare the best-fitting eclipse depth to the predicted eclipse depths from theoretical stellar models. We determined the effective temperature of the M dwarf to be Teff,2 = 3208 ± 43 K, assuming log g2 = 5, [Fe/H] = −0.4, and no alpha-element enhancement. Varying these assumptions changes Teff,2 by less than 100 K. These results do not support a large anomaly between observed and theoretical low-mass star temperatures.

scholarly journals Stability of planetary, single M dwarf, and binary star companions to Kepler detached eclipsing binaries and a possible five-body system

2020 ◽  
Vol 498 (3) ◽  
pp. 4356-4364
Author(s):  
A K Getley ◽  
B Carter ◽  
R King ◽  
S O’Toole
Keyword(s):  
Binary Stars ◽  
Binary Star ◽  
Eclipsing Binaries ◽  
Body System ◽  
Star System ◽  
Flip Flop ◽  
Eclipsing Binary ◽  
Photometric Monitoring ◽  
Eclipsing Binary Star ◽  
M Dwarf

ABSTRACT In this study, we identify 11 Kepler systems (KIC 5255552, 5653126, 5731312, 7670617, 7821010, 8023317, 10268809, 10296163, 11519226, 11558882, and 12356914) with a flip-flop effect in the eclipse timing variations O − C diagrams of the systems, report on what these systems have in common and whether these systems are dynamically stable. These systems have previously reported high eccentric binary stars with highly eccentric third bodies/outer companions. We find that all of the additional bodies in the system are dynamically stable for the configurations previously reported and are therefore likely to exist as described. We also provide additional evidence of KIC 5255552 being a quadruple star system composed of an eclipsing binary pair and non-eclipsing binary pair with the possibility of a fifth body in the system. With the advent of the NASA’s Transiting Exoplanet Survey Satellite (TESS) exoplanet survey, its precision photometric monitoring offers an opportunity to help confirm more local eclipsing binary star companions, including planets.

Absolute Properties of the Main-Sequence Eclipsing Binary Star EY Cephei

2006 ◽  
Vol 131 (5) ◽  
pp. 2664-2672 ◽  
Author(s):  
Claud H. Sandberg Lacy ◽  
Guillermo Torres ◽  
Antonio Claret ◽  
John L. Menke
Keyword(s):  
Main Sequence ◽  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star

scholarly journals ABSOLUTE PROPERTIES OF THE ECLIPSING BINARY STAR IM PERSEI

2015 ◽  
Vol 149 (1) ◽  
pp. 34 ◽  
Author(s):  
Claud H. Sandberg Lacy ◽  
Guillermo Torres ◽  
Francis C. Fekel ◽  
Matthew W. Muterspaugh ◽  
John Southworth
Keyword(s):  
Binary Star ◽  
Eclipsing Binary ◽  
Eclipsing Binary Star
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