Zobrazeno 1 - 10
of 541
pro vyhledávání: '"Tomov T."'
Autor:
Yancheva N., Strashimirov D., Elenkov I., Tchervenyakova T., Tomova P., Tcvetkova N., Yankova M., Tomov T., Nikolova M.
Publikováno v:
Acta Medica Bulgarica, Vol 43, Iss 1, Pp 64-70 (2016)
Diarrhea is the most common gastrointestinal symptom in HIV-infected patients. The incidence and severity of diarrhea increase with progression of the immune defi ciency. In the literature, 30-60% of the patients with diarrhea among HIV-infected indi
Externí odkaz:
https://doaj.org/article/3e62e8fb10a3480ca9248fe1789ec368
Autor:
Narloch W., Kaluzny J., Krzeminski W., Pych W., Rozyczka M., Shectman S., Thompson I. B., Tomov T.
Publikováno v:
Open Astronomy, Vol 23, Iss 1, Pp 1-7 (2014)
Photometric observations of GQ Mus performed between 1992 and 2011 are reported. We find that the total amplitude of the orbital modulation of its brightness decreased from ~ 0.9 mag in 1992 to ~ 0.2 mag in 2010, becoming comparable to the amplitude
Externí odkaz:
https://doaj.org/article/1928663855664af4b52b5dafce46a6f8
Autor:
Pieńkowski, D., Gałan, C., Tomov, T., Gazeas, K., Wychudzki, P., Mikołajewski, M., Kubicki, D., Staels, B., Zoła, S., Pakońska, P., Dȩbski, B., Kundera, T., Ogłoza, W., Dróżdż, M., Baran, A., Winiarski, M., Siwak, M., Dimitrov, D., Kjurkchieva, D., Marchev, D., Armiński, A., Miller, I., Kołaczkowski, Z., Moździerski, D., Zahajkiewicz, E., Bruś, P., Pigulski, A., Smela, T., Conseil, E., Boyd, D., Conidis, G. J., Plauchu-Frayn, I., Heras, T. A., Kardasis, E., Biskupski, M., Kneip, R., Hambálek, L., Pribulla, T., Kundra, E., Nedoroščik, J., Lopatovský, J., Garai, Z., Rodriguez, D., Kamiński, T., Dubois, F., Logie, L., Blanco, A. Capetillo, Kankiewicz, P., Świerczyński, E., Martignoni, M., Sergey, I., Qvam, J. Kare Trandem, Semkov, E., Ibryamov, S., Peneva, S., Carballo, J. -L. Gonzalez, Ribeiro, J., Dean, S., Apostolovska, G., Donchev, Z., Corp, L., McDonald, P., Rodriguez, M., Sanchez, A., Wiersema, K., Menke, J., Richardson, N.
Context. EE Cep is one of few eclipsing binary systems with a dark, dusty disk around an invisible object similar to {\epsilon} Aur. The system is characterized by grey and asymmetric eclipses every 5.6 yr, with a significant variation in their photo
Externí odkaz:
http://arxiv.org/abs/2001.05891
Here we analyze high-resolution spectra of the Nova V392 Per obtained during the 2018 outburst. The H$\alpha$ and H$\beta$ emission lines show a triple-peak structure with radial velocities of about -2000 km/s, -250 km/s and 1900 km/s respectively. T
Externí odkaz:
http://arxiv.org/abs/1906.06055
Autor:
Pigulski, A., Baran, A., Bzowski, M., Cugier, H., Czerny, B., Daszynska-Daszkiewicz, J., Dziembowski, W., Handler, G., Kolaczkowski, Z., Krolikowska, M., Krzesinski, J., Maciejewski, G., Michalska, G., Molenda-Zakowicz, J., Moskalik, P., Niedzielski, A., Niemczura, E., Ostrowski, J., Pamyatnykh, A., Ratajczak, M., Rucinski, S., Siwak, M., Smolec, R., Szutowicz, S., Tomov, T., Wyrzykowski, L., Zola, S., Sarna, M.
Time-series photometry from space in the ultraviolet can be presently done with only a few platforms, none of which is able to provide wide-field long-term high-cadence photometry. We present a concept of UVSat, a twin space telescope which will be c
Externí odkaz:
http://arxiv.org/abs/1711.10366
We report finding high-velocity components in the H{\alpha} emission wings of St 2-22 spectra, obtained in 2005. This discovery have encouraged us to start the present study, aiming to show that this little studied object is a jet producing symbiotic
Externí odkaz:
http://arxiv.org/abs/1708.05910
Autor:
Zamanov, R. K., Boeva, S., Nikolov, Y. M., Petrov, B., Bachev, R., Latev, G. Y., Popov, V. A., Stoyanov, K. A., Bode, M. F., Marti, J., Tomov, T., Antonova, A.
We report optical CCD photometry of the recently identified symbiotic star EF Aql. Our observations in Johnson V and B bands clearly show the presence of stochastic light variations with an amplitude of about 0.2 mag on a time scale of minutes. The o
Externí odkaz:
http://arxiv.org/abs/1702.08243
Optical spectroscopy study of the recent AG Peg outburst observed during the second half of 2015 is presented. Considerable variations of the intensity and the shape of the spectral features as well as the changes of the hot component parameters, cau
Externí odkaz:
http://arxiv.org/abs/1608.02980
Autor:
Valtonen, M. J., Zola, S., Ciprini, S., Gopakumar, A., Matsumoto, K., Sadakane, K., Kidger, M., Gazeas, K., Nilsson, K., Berdyugin, A., Piirola, V., Jermak, H., Baliyan, K. S., Alicavus, F., Boyd, D., Torrent, M. Campas, Campos, F., Gomez, J. Carrillo, Caton, D. B., Chavushyan, V., Dalessio, J., Debski, B., Dimitrov, D., Drozdz, M., Er, H., Erdem, A., Perez, A. Escartin, Ramazani, V. Fallah, Filippenko, A. V., Ganesh, S., Garcia, F., Pinilla, F. Gomez, Gopinathan, M., Haislip, J. B., Hudec, R., Hurst, G., Ivarsen, K. M., Jelinek, M., Joshi, A., Kagitani, M., Kaur, N., Keel, W. C., LaCluyze, A. P., Lee, B. C., Lindfors, E., de Haro, J. Lozano, Moore, J. P., Mugrauer, M., Nogues, R. Naves, Neely, A. W., Nelson, R. H., Ogloza, W., Okano, S., Pandey, J. C., Perri, M., Pihajoki, P., Poyner, G., Provencal, J., Pursimo, T., Raj, A., Reichart, D. E., Reinthal, R., Sadegi, S., Sakanoi, T., Gonzalez, J. L. Salto, Schweyer, T., Siwak, M., Alfaro, F. C. Soldan, Sonbas, E., Steele, I., Stocke, J. T., Strobl, J., Takalo, L. O., Tomov, T., Espasa, L. Tremosa, Valdes, J. R., Perez, J. Valero, Verrecchia, F., Webb, J. R., Yoneda, M., Zejmo, M., Zheng, W., Telting, J., Saario, J., Reynolds, T., Kvammen, A., Gafton, E., Karjalainen, R., Harmanen, J., Blay, P.
Publikováno v:
ApJ, 819, L37 (2016)
OJ287 is a quasi-periodic quasar with roughly 12 year optical cycles. It displays prominent outbursts which are predictable in a binary black hole model. The model predicted a major optical outburst in December 2015. We found that the outburst did oc
Externí odkaz:
http://arxiv.org/abs/1603.04171
Autor:
Zamanov, R. K., Boeva, S., Latev, G., Sokoloski, J. L., Stoyanov, K. A., Genkov, V., Tsvetkova, S. V., Tomov, T., Antov, A., Bode, M. F.
Publikováno v:
MNRAS 457 L10-L13 (2016)
We analyze optical photometric data of short term variability (flickering) of accreting white dwarfs in cataclysmic variables (KR Aur, MV Lyr, V794 Aql, TT Ari, V425 Cas), recurrent novae (RS Oph and T CrB) and jet-ejecting symbiotic stars (CH Cyg an
Externí odkaz:
http://arxiv.org/abs/1511.08296