Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Eker, Z."'
Developments on various relations among stellar variables such as the main sequence empirical mass-luminosity (MLR), mass-radius (MRR) and mass-effective temperature (MTR) relations were reviewed. Conceptual changes in their understanding and usages
Externí odkaz:
http://arxiv.org/abs/2402.07947
A detailed analysis of ground-based CCD UBV photometry and space-based Gaia Data Release 3 (DR3) data for the open clusters King 6 and NGC 1605 was performed. Using the pyUPMASK algorithm on Gaia astrometric data to estimate cluster membership probab
Externí odkaz:
http://arxiv.org/abs/2311.00054
Arbitrariness in the zero point of bolometric corrections is a nearly century-old paradigm leading to two more paradigms. "Bolometric corrections must always be negative," and "bolometric magnitude of a star ought to be brighter than its $V$ magnitud
Externí odkaz:
http://arxiv.org/abs/2209.06254
Autor:
Santos-Sanz, P., Ortiz, J. L., Sicardy, B., Popescu, M., Benedetti-Rossi, G., Morales, N., Vara-Lubiano, M., Camargo, J. I. B., Pereira, C. L., Rommel, F. L., Assafin, M., Desmars, J., Braga-Ribas, F., Duffard, R., Oliveira, J. Marques, Vieira-Martins, R., Fernández-Valenzuela, E., Morgado, B. E., Acar, M., Anghel, S., Atalay, E., Ateş, A., Bakış, H., Bakış, V., Eker, Z., Erece, O., Kaspi, S., Kayhan, C., Kilic, S. E., Kilic, Y., Manulis, I., Nedelcu, D. A., Niaei, M. S., Nir, G., Ofek, E., Ozisik, T., Petrescu, E., Satir, O., Solmaz, A., Sonka, A., Tekes, M., Unsalan, O., Yesilyaprak, C., Anghel, R., Berteşteanu, D., Curelaru, L., Danescu, C., Dumitrescu, V., Gherase, R., Hudin, L., Stoian, A-M., Tercu, J. O., Truta, R., Turcu, V., Vantdevara, C., Belskaya, I., Dementiev, T. O., Gazeas, K., Karampotsiou, S., Kashuba, V., Kiss, Cs., Koshkin, N., Kozhukhov, O. M., Krugly, Y., Lecacheux, J., Pal, A., Püsküllü, Ç., Szakats, R., Zhukov, V., Bamberger, D., Mondon, B., Perelló, C., Pratt, A., Schnabel, C., Selva, A., Teng, J. P., Tigani, K., Tsamis, V., Weber, C., Wells, G., Kalkan, S., Kudak, V., Marciniak, A., Ogloza, W., Ozdemir, T., Pakstiene, E., Perig, V., Zejmo, M.
Publikováno v:
A&A 664, A130 (2022)
Within our international program to obtain accurate physical properties of trans-Neptunian objects (TNOs) we predicted a stellar occultation by the TNO (38628) Huya of the star Gaia DR2 4352760586390566400 (mG = 11.5 mag.) for March 18, 2019. After a
Externí odkaz:
http://arxiv.org/abs/2205.12882
Autor:
Bakış, V., Eker, Z., Bakış, H., Kayacı, S., Yücel, G., Tunç, E., Taşpınar, O., Yalçın, Y., Melnik, A., Esendağlı, Ç.
Three Algol-type binary systems (IO Cep, IM Cep and TX Ari) showing cyclic orbital period changes are studied. The combination of time of minimum data from the ground-based observations together with high precision photometric data from the TESS sate
Externí odkaz:
http://arxiv.org/abs/2112.05376
Methods of obtaining stellar luminosities (L) have been revised and a new concept, standard stellar luminosity, has been defined. Among the three methods (direct method from radii and effective temperatures, method using a mass-luminosity relation (M
Externí odkaz:
http://arxiv.org/abs/2108.01092
Arbitrariness attributed to the zero point constant of the $V$ band bolometric corrections ($BC_V$) and its relation to "bolometric magnitude of a star ought to be brighter than its visual magnitude" and "bolometric corrections must always be negativ
Externí odkaz:
http://arxiv.org/abs/2103.03258
Autor:
Eker, Z., Soydugan, F., Bilir, S., Bakis, V., Alicavus, F., Ozer, S., Aslan, G., Alpsoy, M., Kose, Y.
Nearby detached double-lined eclipsing binaries with most accurate data were studied and 290 systems were found with at least one main-sequence component having a metallicity $0.008\leq Z\leq 0.040$. Stellar parameters, light ratios, Gaia DR2 trigono
Externí odkaz:
http://arxiv.org/abs/2006.01836
Autor:
Eker, Z., Bakis, V., Bilir, S., Soydugan, F., Steer, I., Soydugan, E., Bakis, H., Alicavus, F., Aslan, G., Alpsoy, M.
Absolute parameters of 509 main-sequence stars selected from the components of detached-eclipsing spectroscopic binaries in the Solar neighbourhood are used to study mass-luminosity, mass-radius and mass-effective temperature relations (MLR, MRR and
Externí odkaz:
http://arxiv.org/abs/1807.02568
Autor:
Bakış, V., Eker, Z., Bakış, H., Kayacı, S., Yücel, G., Tunç, E., Taşpınar, Ö., Yalçın, Y., Melnik, A., Esendağlı, Ç.
Publikováno v:
In New Astronomy May 2022 93
