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Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160


Yakut, K.; Tarasov, A. E.; Ibanoglu, C.; Harmanec, P.; Kalomeni, B.; Holmgren, D. E.; Božić, Hrvoje; Eenens, P.
Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160 // Astronomy & astrophysics (Berlin), 405 (2003), .; 1087-1093 (međunarodna recenzija, članak, znanstveni)


Naslov
Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160

Autori
Yakut, K. ; Tarasov, A. E. ; Ibanoglu, C. ; Harmanec, P. ; Kalomeni, B. ; Holmgren, D. E. ; Božić, Hrvoje ; Eenens, P.

Izvornik
Astronomy & astrophysics (Berlin) (0004-6361) 405 (2003), .; 1087-1093

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
stars: binaries: eclipsing; stars: binaries: spectroscopic; stars: individual: V497 Cep; Galaxy: open clusters and associations: individual: NGC 7160

Sažetak
New light and radial-velocity curves of V497 Cep , a binary in the open cluster NGC 7160, were obtained and the linear ephemeris of the system was refined to HJD (Min I) = (2 446 299.1596 +/- 0.0064) + (1.2028287d +/- 0.0000015d ) x E. The first light and radial-velocity curve solutions allowed us to derive the basic physical properties of this astrophysically important binary. It was found that the observed light variation of V497 Cep consists of a strong ellipticity effect and a small contribution from grazing eclipses. A comparison of masses and radii of V497 Cep with theoretical evolutionary tracks indicates that both binary components are very close to the zero-age main sequence. A comparison of disentangled line profiles of the He I 6678 line with synthetic, rotationally broadened line profiles indicates that the rotation of both stars is synchronized with the orbital revolution as expected. This finding increases the credibility of our solutions. We find E(B-V)=0fm39 . The distance to the cluster NGC 7160 was found to be about 760 (+/- 100) pc which agrees well with other available estimates.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0007016

Ustanove
Geodetski fakultet, Zagreb

Profili:

Avatar Url Hrvoje Božić (autor)

Citiraj ovu publikaciju

Yakut, K.; Tarasov, A. E.; Ibanoglu, C.; Harmanec, P.; Kalomeni, B.; Holmgren, D. E.; Božić, Hrvoje; Eenens, P.
Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160 // Astronomy & astrophysics (Berlin), 405 (2003), .; 1087-1093 (međunarodna recenzija, članak, znanstveni)
Yakut, K., Tarasov, A., Ibanoglu, C., Harmanec, P., Kalomeni, B., Holmgren, D., Božić, H. & Eenens, P. (2003) Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160. Astronomy & astrophysics (Berlin), 405 (.), 1087-1093.
@article{article, year = {2003}, pages = {1087-1093}, keywords = {stars: binaries: eclipsing, stars: binaries: spectroscopic, stars: individual: V497 Cep, Galaxy: open clusters and associations: individual: NGC 7160}, journal = {Astronomy and astrophysics (Berlin)}, volume = {405}, number = {.}, issn = {0004-6361}, title = {Basic physical properties of the close binary V497 Cep in the open cluster NGC 7160}, keyword = {stars: binaries: eclipsing, stars: binaries: spectroscopic, stars: individual: V497 Cep, Galaxy: open clusters and associations: individual: NGC 7160} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus