Zobrazeno 1 - 10
of 215
pro vyhledávání: '"Esipov, V."'
Autor:
Ikonnikova, N. P., Shaposhnikov, I. A., Esipov, V. F., Burlak, M. A., Arkhipova, V. P., Dodin, A. V., Potanin, S. A., Shatsky, N. I.
We present the results of our new low-resolution spectroscopic observations of the young compact planetary nebula Hb 12 performed in 2011-2020 with SAI MSU telescopes. We have measured the intensities of more than 50 nebular emission lines in the spe
Externí odkaz:
http://arxiv.org/abs/2111.00491
Autor:
Arkhipova, V. P., Burlak, M. A., Ikonnikova, N. P., Komissarova, G. V., Esipov, V. F., Shenavrin, V. I.
We present the results of a new epoch of a long-term photometric monitoring of the variable planetary nebula IC~4997. The integral $UBV$ light curves display a continuing brightening of 0.$^{m}15$ in $V$, a slight rise (<0.$^{m}1$) in $B$, and consta
Externí odkaz:
http://arxiv.org/abs/2002.10005
LT Del is a yellow symbiotic system that consists of a bright K3-type giant and a hot subdwarf with a temperature of about 10$^5$ K. We present the results of our spectroscopic observations of LT Del over the period 2010-2018. In 2017 the star experi
Externí odkaz:
http://arxiv.org/abs/1904.11855
Autor:
Ikonnikova, N. P., Taranova, O. G., Arkhipova, V. P., Komissarova, G. V., Shenavrin, V. I., Esipov, V. F., Burlak, M. A., Metlov, V. G.
We present the results of multicolor (UBVJHKLM) photometry (2009-2017) and low-resolution spectroscopy (2016-2017) of the semi-regular variable V1427 Aql=HD 179821, a yellow supergiant with gas-dust envelope. The star displays low-amplitude ({\Delta}
Externí odkaz:
http://arxiv.org/abs/1804.07120
Autor:
Arkhipova, V. P., Taranova, O. G., Ikonnikova, N. P., Esipov, V. F., Komissarova, G. V., Shenavrin, V. I., Burlak, M. A.
We present the results of our $UBV$ and $JHKLM$-photometry for the semiregular pulsating variable V1027~Cyg, a supergiant with an infrared excess, over the period from 1991 to 2015. Our search for a periodicity in the $UBV$ brightness variations has
Externí odkaz:
http://arxiv.org/abs/1609.09279
Autor:
Arkhipova, V. P., Burlak, M. A., Esipov, V. F., Ikonnikova, N. P., Kniazev, A. Yu., Komissarova, G. V., Tekola, A.
Publikováno v:
Astronomy Letters, Volume 40, Issue 8, pp.485-498 (2014)
We present the results of spectroscopic and photometric observations for three hot southern-hemisphere post-AGB objects, Hen 3-1347 = IRAS 17074-1845, Hen 3-1428 = IRAS17311-4924, and LSS 4634 = IRAS 18023-3409. In the spectrograms taken with the 1.9
Externí odkaz:
http://arxiv.org/abs/1410.3258
Autor:
Arkhipova, V. P., Egorov, O. V., Esipov, V. F., Ikonnikova, N. P., Lozinskaya, T. A., Rudnitskij, G. M., Sitnik, T. G., Tatarnikov, A. M., Tsvetkov, D. Yu., Zharova, A. V.
Publikováno v:
MNRAS, 432, p.2273-2283 (2013)
The interstellar medium in the region of a family of cometary globules including the reflection nebula GM 2-39 has been analyzed basing on our observations with the slit spectrograph, the results of our previous observations with a Fabry-Perot interf
Externí odkaz:
http://arxiv.org/abs/1304.1569
We present photoelectric and spectral observations of a hot candidate proto-planetary nebula - early B-type supergiant with emission lines in spectrum - IRAS 19336-0400. The light and color curves display fast irregular brightness variations with max
Externí odkaz:
http://arxiv.org/abs/1111.2408
We present photoelectric and spectral observations of a hot candidate proto-planetary nebula - early B-type supergiant with emission lines in spectrum - IRAS 19336-0400. The light and color curves display fast irregular brightness variations with max
Externí odkaz:
http://arxiv.org/abs/1111.2190
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