52 citations · 113 across the 22 of their papers we have counts for
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International observational campaigns of the last two eclipses in EE Cephei: 2003 and 2008/9
C. Gałan, M. Mikołajewski, T. Tomov +87
Two observational campaigns were carried out during the eclipses of EE Cep in 2003 and 2008/9 to verify whether the eclipsing body in the system is indeed a dark disk and to unders…
Accretion Events in Binary Systems: AZ Cas and VV Cep
C. Gałan, M. Mikołajewski, T. Tomov +13
The sudden lengthening of orbital period of VV Cep eclipsing binary by about 1% was observed in the last epoch. The mass transfer and/or mass loss are most possible explanations of…
Multicolor photometry of SU UMa and U Gem during quiescence, outburst and superoutburst
P. Wychudzki, M. Mikolajewski, M. Wiecek +5
The results of time-resolved observations of SU UMa and U Gem obtained over two-years are presented. Both stars are prototypes of different classes of dwarf novae. We studied brigh…
Four unusual novae observed in Torun: V2362 Cyg, V2467 Cyg, V458 Vul, V2491 Cyg
E. Ragan, M. Mikolajewski, T. Tomov +21
We present photometric and spectral observation for four novae: V2362 Cyg, V2467 Cyg, V458 Vul, V2491 Cyg. All objects belongs to the "fast novae" class. For these stars we observe…
V2491 Cyg - a possible recurrent nova ?
E. Ragan, M. Mikolajewski, T. Tomov +6
Nova V2491 Cyg was discovered on April 10.72 UT 2008 (Nakano, 2008). Here we present spectrophotometric premises that V2491 Cyg can be a good candidate for recurrent nova (RNe). It…
Photometric search of orbital periods in symbiotic stars
M. Wiecek, M. Mikolajewski, T. Tomov +9
We present UBVRI photometry of three symbiotic stars ZZ CMi, TX CVn and AG Peg carried out from 1997 to 2008 in Piwnice Observatory near Torun. To search orbital periods of these s…
Ellipsoidal effect in the symbiotic star YY Her
M. Wiecek, M. Mikolajewski, T. Tomov +3
A new estimation of the orbital period of YY Her on the base of our and published observations is presented. Phased light curves in RI bands show evidently ellipsoidal effect conne…
Multi-ring structure of the eclipsing disk in EE Cep - possible planets?
C. Galan, M. Mikolajewski, T. Tomov +57
The photometric and spectroscopic observational campaign organized for the 2008/9 eclipse of EE Cep revealed features, which indicate that the eclipsing disk in the EE Cep system h…
V2467 Cygni as possible intermediate polar
E. Swierczynski, M. Mikolajewski, T. Tomov +7
We present the results of unfiltered and UBVR_cI_c band CCD photometry fast nova V2467Cyg. Our analysis of the data gives two distinct frequencies corresponding to periods of ~3.8h…