Light Curve Analysis and Evolutionary Status of the RS CVn type Eclipsing Binary RZ Eridani

Photoelectric observations of the long period RS CVn type eclipsing binary RZ Eridani were made with the 1.2m reflecting telescope of the Japal – Rangapur Observatory during the observing seasons 1976-79. We could not obtain a full light curve in any one season and therefore the combined light curve is used for analysis. No distortion wave was found in this system. The period of the system (39ḍ282466) is found to be constant during the period 1906 to 1979. From W-D solution we obtained the eccentricity to be zero whereas Popper (private communication) from his spectroscopie studies, suggested a value of e = 0.339 for the eccentricity. Such disagreement between the photometric & spectroscopic eccentricity values is reported in the system SX Cas (Struve 1944 Ap.J, 99, 89., Shao 1967 A.J, 72, 480). This might be due to circumstellar matter covering the whole system. The ultraviolet excess found by us in RZ Eri is similar to that found in systems like SX Cas, RX Cas, βLyr & W Ser

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Radial Velocity and Light Curve Analysis of the Eclipsing Binary Nn Vir

Astrophysics and Space Science ◽

10.1007/s10509-005-4828-x ◽

2005 ◽

Vol 296 (1-4) ◽

pp. 269-272

Author(s):

R. Pazhouhesh ◽

E. G. Melendo

Keyword(s):

Light Curve ◽

Radial Velocity ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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Photometric study and light curve analysis of eclipsing binary V2480 Cyg

New Astronomy ◽

10.1016/j.newast.2016.11.003 ◽

2017 ◽

Vol 53 ◽

pp. 1-5

Author(s):

H. Shamsollahi ◽

A. Jahan ◽

R. Heidarnia

Keyword(s):

Light Curve ◽

Curve Analysis ◽

Photometric Study ◽

Light Curve Analysis ◽

Eclipsing Binary

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First ground-based photometry and light-curve analysis of the eccentric eclipsing binary V744 Cas

Astronomische Nachrichten ◽

10.1002/asna.200510656 ◽

2006 ◽

Vol 327 (9) ◽

pp. 912-916 ◽

Cited By ~ 1

Author(s):

İ. Bulut ◽

C. Çiçek ◽

A. Erdem ◽

V. Bakis ◽

O. Demircan ◽

...

Keyword(s):

Light Curve ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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Light curve analysis of Hipparcos data for the massive O-type eclipsing binary UW CMa

New Astronomy ◽

10.1016/j.newast.2010.09.008 ◽

2011 ◽

Vol 16 (3) ◽

pp. 177-182 ◽

Cited By ~ 3

Author(s):

E.A. Antokhina ◽

M. Srinivasa Rao ◽

M. Parthasarathy

Keyword(s):

Light Curve ◽

Curve Analysis ◽

Light Curve Analysis ◽

Eclipsing Binary

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Light curve analysis of the eclipsing binary system V781 Tau

Journal of Physics Conference Series ◽

10.1088/1742-6596/2145/1/012005 ◽

2021 ◽

Vol 2145 (1) ◽

pp. 012005

Author(s):

N Lamlert ◽

W Maithong

Keyword(s):

Binary System ◽

Light Curve ◽

Orbital Period ◽

Binary Systems ◽

Curve Analysis ◽

Photometric System ◽

Light Curve Analysis ◽

Eclipsing Binary ◽

The Public ◽

Secondary Star

Abstract V781 Tau is one of W UMa eclipsing binary systems whose orbital period is 0.34 days. The 0.7-meter telescope with CCD photometric system in B and V filters was conducted at the Regional Observatory for the Public, Chachoengsao, Thailand during December 2018, UT. The Wilson-Devinney Technique was used for calculating the physical properties of V781 Tau. The results showed the inclination of their orbital is 66.140°±0.14. The effective temperature of the primary and secondary star is 6,060 and 5,881 K, respectively and the degree of contact is 4.38 %

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