Zobrazeno 1 - 10
of 1 628
pro vyhledávání: '"Nikolov G"'
Autor:
Hristov, Yanko
Publikováno v:
Македонски преглед / Macedonian Review. (3):151-154
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=479705
Autor:
Zamanov, R. K., Kostov, A., Moyseev, M., Petrov, N., Nikolov, Y. M., Latev, G. Y., Marchev, D., Boeva, S., Stoyanov, K. A., Minev, M. S., Marti, J., Radeva, V., Sanchez-Ayaso, E., Bode, M. F., Ilkiewicz, K., Nikolov, G., Luque-Escamilla, P. L., Spassov, B., Borisov, B., Marchev, V. D., Kurtenkov, A.
We report photometric observations of the hidden symbiotic star SU Lyn in the optical bands. In five nights we detect a weak flickering in U band with amplitude of about 0.05 magnitudes. No intranight variations are found in B, V, g' and r' bands. Th
Externí odkaz:
http://arxiv.org/abs/2206.10151
Autor:
Nikolov, G. N.1 (AUTHOR) gnn@mp.aau.dk, Thomsen, A. N.1 (AUTHOR), Mikkelstrup, A. F.1 (AUTHOR), Kristiansen, Morten1 (AUTHOR)
Publikováno v:
International Journal of Production Research. May2024, Vol. 62 Issue 10, p3526-3543. 18p.
We report observations of the flickering variability of the dwarf nova RX And in five bands (UBVRI) on two nights. On 25 October 2019 the brightness of the star was $B\approx 13.9$ mag, the amplitude of the flickering was 0.47 mag, and we estimate fo
Externí odkaz:
http://arxiv.org/abs/2104.12439
Autor:
Zamanov, R. K., Stoyanov, K. A., Kostov, A., Kurtenkov, A., Nikolov, G., Latev, G., Bode, M. F., Marti, J., Luque-Escamilla, P. L., Tomov, N., Nikolov, Y. M., Boeva, S. S.
We present photometric and spectral observations of the symbiotic star ZZ CMi. We detect intranight variability - flickering and smooth variations in U band. The amplitude of the flickering is about 0.10-0.20 mag in U band. In the B band the variabil
Externí odkaz:
http://arxiv.org/abs/2103.06625
Autor:
Zamanov, R. K., Boeva, S., Stoyanov, K. A., Latev, G., Spassov, B., Kurtenkov, A., Nikolov, G.
We analyse optical photometric data of short term variability (flickering) of the accreting white dwarf in the jet-ejecting symbiotic star MWC560. The observations are obtained in 17 nights during the period November 2011 - October 2019. The colour-m
Externí odkaz:
http://arxiv.org/abs/2004.00511
Autor:
Georgiev, Ts. B., Zamanov, R. K., Boeva, S., Latev, G. Y., Spassov, B., Marti, J., Nikolov, G., Ibryamov, S., Tsvetkova, S. V., Stoyanov, K. A.
We study the photometric behavior of the recurrent nova RS Oph by 58 monitoring light curves (LCs), taken by 5 telescopes. All LCs show repeating time structures with some quasi-periods (QPs) in time scales from minutes to hours. In our previous work
Externí odkaz:
http://arxiv.org/abs/2001.11290
Autor:
Georgiev, Ts. B., Zamanov, R. K., Boeva, S., Latev, G., Spassov, B., Marti, J., Nikolov, G., Ibryamov, S., Tsvetkova, S. V., Stoyanov, K. A.
We analyzed 29 pairs of time series in B and V bands of the recurrent nova RS Oph. The observations were carried out in 2008-2017 with duration 0.6 - 3.6 hours, with time resolution 0.5 - 3.3 min. We scanned digitally each series by data windows with
Externí odkaz:
http://arxiv.org/abs/1811.09153
Autor:
Stoyanov, K. A., Marti, J., Zamanov, R., Dimitrov, V. V., Kurtenkov, A., Sanchez-Ayaso, E., Bujalance-Fernandez, I., Latev, G. Y., Nikolov, G.
Here we present quasi-simultaneous observations of the flickering of the symbiotic binary star CH Cyg in U, B and V bands. We calculate the flickering source parameters and discuss the possible reason for the flickering cessation in the period 2010-2
Externí odkaz:
http://arxiv.org/abs/1711.01749
We report simultaneous observations of the flaring behaviour of the cataclysmic variable star AE Aqr. The observations are in Johnson B and V bands. The colour-magnitude diagrams (B-V versus V and B-V vs. B) show that the star becomes blues as it bec
Externí odkaz:
http://arxiv.org/abs/1612.06157