NSVS4484038, A contact binary system at the short-period cutoff

Zhang, X. B.; Deng, L. C.; Wang, K.; Yan, Z. Z.; Tian, J. F.; Peng, Y. J.; Pan, Y.; Luo, Z. Q.; Sun, J. J.; Liu, Q. L.; Xin, H. Q.; Zhou, Q.

doi:10.1088/0004-6256/148/3/40

Title: NSVS4484038, A contact binary system at the short-period cutoff

Full Record
Other Related Research

Abstract

We present a photometric study of the short-period eclipsing binary NSVS4484038. Time-series CCD photometry of the star in the B and V band was carried out. An orbital period of 0.218551 days was determined for the eclipsing binary and a revised linear ephemeris was given. The first photometric solution of the binary system was detected through light-curve synthesis using the Wilson-Devinney method. It reveals an overcontact configuration for the system with a filling-out factor of about 10%. The mass ratio was determined to be 2.74 with an inclination of 72.°1. The less massive secondary component is found to have a higher surface temperature than the primary by about 90 K, indicating that NSVS4484038 could be a contact system of W subtype. The star is then identified to be a new member of W UMa systems at the short-period cutoff. Comparisons with known contact binaries at the short-period cutoff, the properties, and the evolutionary status of the binary system are discussed.

Authors:

Zhang, X. B.; Deng, L. C.; Wang, K.; Yan, Z. Z.; Tian, J. F. ^[1]; Peng, Y. J.; Pan, Y.; Luo, Z. Q. ^[2]; Sun, J. J.; Liu, Q. L.; Xin, H. Q.; Zhou, Q. ^[3]

Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China)
Department of Physics, China West Normal University, Nanchong 637002 (China)
Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

Publication Date:: Mon Sep 01 00:00:00 EDT 2014

OSTI Identifier:: 22342271

Resource Type:: Journal Article

Journal Name:: Astronomical Journal (New York, N.Y. Online)

Additional Journal Information:: Journal Volume: 148; Journal Issue: 3; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1538-3881

Country of Publication:: United States

Language:: English

Subject:: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BINARY STARS; CHARGE-COUPLED DEVICES; COMPARATIVE EVALUATIONS; CONFIGURATION; ECLIPSE; INCLINATION; MASS; MATHEMATICAL SOLUTIONS; PHOTOMETRY; STARS; SURFACES; SYNTHESIS; VISIBLE RADIATION

Citation Formats


                    Zhang, X. B., Deng, L. C., Wang, K., Yan, Z. Z., Tian, J. F., Peng, Y. J., Pan, Y., Luo, Z. Q., Sun, J. J., Liu, Q. L., Xin, H. Q., and Zhou, Q. NSVS4484038, A contact binary system at the short-period cutoff.  United States: N. p., 2014. 
        Web.  doi:10.1088/0004-6256/148/3/40.

Copy to clipboard


                    Zhang, X. B., Deng, L. C., Wang, K., Yan, Z. Z., Tian, J. F., Peng, Y. J., Pan, Y., Luo, Z. Q., Sun, J. J., Liu, Q. L., Xin, H. Q., & Zhou, Q. NSVS4484038, A contact binary system at the short-period cutoff.  United States.  https://doi.org/10.1088/0004-6256/148/3/40

Copy to clipboard


                    Zhang, X. B., Deng, L. C., Wang, K., Yan, Z. Z., Tian, J. F., Peng, Y. J., Pan, Y., Luo, Z. Q., Sun, J. J., Liu, Q. L., Xin, H. Q., and Zhou, Q. 2014.  
        "NSVS4484038, A contact binary system at the short-period cutoff".  United States.  https://doi.org/10.1088/0004-6256/148/3/40.

Copy to clipboard


                    
@article{osti_22342271,

  title        = {NSVS4484038, A contact binary system at the short-period cutoff},

  author       = {Zhang, X. B. and Deng, L. C. and Wang, K. and Yan, Z. Z. and Tian, J. F. and Peng, Y. J. and Pan, Y. and Luo, Z. Q. and Sun, J. J. and Liu, Q. L. and Xin, H. Q. and Zhou, Q.},

  abstractNote = {We present a photometric study of the short-period eclipsing binary NSVS4484038. Time-series CCD photometry of the star in the B and V band was carried out. An orbital period of 0.218551 days was determined for the eclipsing binary and a revised linear ephemeris was given. The first photometric solution of the binary system was detected through light-curve synthesis using the Wilson-Devinney method. It reveals an overcontact configuration for the system with a filling-out factor of about 10%. The mass ratio was determined to be 2.74 with an inclination of 72.°1. The less massive secondary component is found to have a higher surface temperature than the primary by about 90 K, indicating that NSVS4484038 could be a contact system of W subtype. The star is then identified to be a new member of W UMa systems at the short-period cutoff. Comparisons with known contact binaries at the short-period cutoff, the properties, and the evolutionary status of the binary system are discussed.},

  doi          = {10.1088/0004-6256/148/3/40},

  url          = {https://www.osti.gov/biblio/22342271},
  journal      = {Astronomical Journal (New York, N.Y. Online)},

  issn         = {1538-3881},

  number       = 3,

  volume       = 148,

  place        = {United States},

  year         = {Mon Sep 01 00:00:00 EDT 2014},

  month        = {Mon Sep 01 00:00:00 EDT 2014}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1088/0004-6256/148/3/40

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

FIRST MODERN PHOTOMETRIC INVESTIGATION OF THE PUZZLING W UMa TYPE CLOSE BINARY SYSTEM OF TZ BOOTIS

Journal Article Christopoulou, P; Parageorgiou, A; Chrysopoulos, I - Astronomical Journal (New York, N.Y. Online)

New CCD photometric BVRI observations of the puzzling W UMa type binary star, TZ Bootis, are presented from our observations in 2010. By using the updated version of the Wilson-Devinney code, the first modern photometric solution is deduced from new photometric observations and published spectroscopic data. This low mass ratio binary turns out to be a deep overcontact system with f = 52% of A-subtype. A spot model has been applied to fit the particular features of light curves. Based on our seven new light minimum times and all others compiled from the literature over 70 yr, we studied themore »« less
https://doi.org/10.1088/0004-6256/142/4/99
UBVR{sub c} I{sub c} ANALYSIS OF THE RECENTLY DISCOVERED TOTALLY ECLIPSING EXTREME MASS RATIO BINARY V1853 ORIONIS, AND A STATISTICAL LOOK AT 25 OTHER EXTREME MASS RATIO SOLAR-TYPE CONTACT BINARIES

Journal Article Samec, R; Labadorf, C; Hawkins, N; ... - Astronomical Journal (New York, N.Y. Online)

We present precision CCD light curves, a period study, photometrically derived standard magnitudes, and a five-color simultaneous Wilson code solution of the totally eclipsing, yet shallow amplitude (A{sub v} {approx} 0.4 mag) eclipsing, binary V1853 Orionis. It is determined to be an extreme mass ratio, q = 0.20, W-type W UMa overcontact binary. From our standard star observations, we find that the variable is a late-type F spectral-type dwarf, with a secondary component of about 0.24 solar masses (stellar type M5V). Its long eclipse duration (41 minutes) as compared to its period, 0.383 days, attests to the small relative sizemore »« less
https://doi.org/10.1088/0004-6256/142/4/117
Photometric investigation of the totally eclipsing contact binary V12 in the intermediate-age open cluster NGC 7789

Journal Article Qian, S.; Wang, J.; Liu, L.; ... - Astronomical Journal (New York, N.Y. Online)

NGC 7789 is an intermediate-age open cluster with an age similar to the mean age of contact binary stars. V12 is a bright W UMa-type binary star with an orbital period of 0.3917 days. The first complete light curves of V12 in the V, R, and I bands are presented and analyzed with the Wilson–Devinney (W-D) method. The results show that V12 is an intermediate-contact binary (f=43.0(±2.2)%) with a mass ratio of 3.848, and it is a W-type contact binary where the less massive component is slightly hotter than the more massive one. The asymmetry of the light curves ismore »« less
https://doi.org/10.1088/0004-6256/149/2/38
THE MULTI-COLOR LIGHT CURVES OF THE W UMa TYPE CONTACT BINARY EP ANDROMEDAE

Journal Article Liao, W.; Qian, S.; Li, K.; ... - Astronomical Journal (New York, N.Y. Online)

New multi-color CCD photometric light curves of the eclipsing binary EP And were obtained over six nights in 2006, 2011, and 2012. Using the Wilson-Devinney code, we computed the photometric elements of this system. It was discovered that EP And is a W-type W UMa contact binary system with a mass ratio of q = 2.685 and a degree of contact factor f = 24.9%, rather than an A-type system. Combining 28 newly determined times of minimum light derived from 1999 to 2012 with others collected from the literature, a long-term increase (dP/dt = +5.22 Multiplication-Sign 10{sup -8} days yr{supmore »« less
https://doi.org/10.1088/0004-6256/146/4/79
HIGH FILL-OUT, EXTREME MASS RATIO OVERCONTACT BINARY SYSTEMS. X. THE NEWLY DISCOVERED BINARY XY LEONIS MINORIS

Journal Article Qian, S; Liu, L; Zhu, L; ... - Astronomical Journal (New York, N.Y. Online)

The newly discovered short-period close binary star, XY LMi, has been monitored photometrically since 2006. Its light curves are typical EW-type light curves and show complete eclipses with durations of about 80 minutes. Photometric solutions were determined through an analysis of the complete B, V, R, and I light curves using the 2003 version of the Wilson-Devinney code. XY LMi is a high fill-out, extreme mass ratio overcontact binary system with a mass ratio of q = 0.148 and a fill-out factor of f = 74.1%, suggesting that it is in the late evolutionary stage of late-type tidal-locked binary stars.more »« less
https://doi.org/10.1088/0004-6256/141/5/151

Similar Records