Научные публикации в Scopus: Recent submissions

Now showing items 17321-17340 of 24551

Analysis of optical light curves for the components of the gravitationally lensed quasar SBS 1520+530 based on observations with the 1.5-m RTT-150 telescope in 2001-2005

Khamitov I.; Bikmaev I.; Aslan Z.; Sakhibullin N.; Vlasyuk V.; Zheleznyak A.; Zakharov A. (2006)

We present the R c-band light curves for components A and B of the gravitationally lensed quasar SBS 1520+530 obtained during 2001-2005 with the 1.5-m Russian-Turkish Telescope (RTT-150) at the TUBITAK National Observatory ...
XSS J00564+4548 and IGR J00234+6141: New cataclysmic variables from the RXTE and INTEGRAL all-sky surveys

Bikmaev I.; Revnivtsev M.; Burenin R.; Sunyaev R. (2006)

We present the results of our optical identification of two X-ray sources from the RXTE and INTEGRAL all-sky surveys: XSS J00564+4548 and IGR J00234+6141. Using optical observations with the 1.5-m Russian-Turkish Telescope ...
New nearby active galactic nuclei among INTEGRAL and RXTE X-ray sources

Bikmaev I.; Sunyaev R.; Revnivtsev M.; Burenin R. (2006)

We present the first results of a campaign to optically identify X-ray sources discovered in the all-sky surveys of the RXTE and INTEGRAL observatories. Six newly discovered sources proved to be hitherto unknown nearby ...
Superorbital variability of the X-ray flux in the Be-donor binaries SXP 138, GX-304, and γ Cas

Chashkina A.; Abolmasov P.; Biryukov A.; Shakura N. (2015)

© 2015, Pleiades Publishing, Ltd. RXTE observations of the X-ray binary systems SXP 138, GX-304, and γ Cas in 1997–2011 have shown for the first time that these objects (X-ray binaries with Be donors) display X-ray flux ...
The multiple system ADS 9626: A quadruple star or an encounter of two binaries?

Kiyaeva O.; Zhuchkov R.; Malogolovets E.; Orlov V.; Glukhova A.; Balega Y.; Bikmaev I. (2014)

© 2014, Pleiades Publishing, Ltd. The parameters of the quadruple system ADS 9626 (µ Boo) are analyzed. The system consists of two double stars: the Aa pair with an angular separation of ρ = 0.08″ and the BC pair with an ...
Modeling the optical radiation of the precataclysmic variable SDSS J212531-010745

Shimansky V.; Borisov N.; Nurtdinova D.; Solovyeva Y.; Sakhibullin N.; Spiridonova O. (2015)

© 2015, Pleiades Publishing, Ltd. Optical observations are analyzed to derive a set of basic parameters for the precataclysmic variable star SDSS J212531-010745, whose primary is a PG1159-type star. Spectroscopic and ...
Spectral and photometric studies of the polar USNO-A2.0 0825-18396733

Gabdeev M.; Borisov N.; Shimansky V.; Spiridonova O. (2015)

© 2015, Pleiades Publishing, Ltd. Results of photometric and spectral studies of the new magnetic cataclysmic variable (polar) USNO-A2.0 0825-18396733 are presented. Photometric data in the B, V, and Rc filters show that ...
Modeling and analysis of the spectrum of the globular cluster NGC 2419

Sharina M.; Shimansky V.; Davoust E. (2013)

The properties of the stellar population of the unusual object NGC 2419 are studied; this is the most distant high-mass globular cluster of the Galaxy's outer halo, and a spectrum taken with the 1.93-m telescope of the ...
Radio flux variations of the quasar J1159+2914 (S5 1156+295) in 2010–2013

Gorshkov A.; Ipatov A.; Konnikova V.; Mardyshkin V.; Mingaliev M.; Kharinov M. (2014)

© 2014, Pleiades Publishing, Ltd. Results of the observations of the blazar J1159+2914 (S1156+295) in 2010–2013 are reported. The observations were carried out on the RATAN-600 radio telescope (Special Astrophysical ...
On the reconstruction of the surface structure of the spotted stars

Kolbin A.; Shimansky V.; Sakhibullin N. (2013)

We have developed and tested a light-curve inversion technique for photometric mapping of spotted stars. The surface of a spotted star is partitioned into small area elements, over which a search is carried out for the ...
Physical parameters and dynamical properties of the multiple system ι UMa (ADS 7114)

Zhuchkov R.; Malogolovets E.; Kiyaeva O.; Orlov V.; Bikmaev I.; Balega Y. (2012)

We analyze the physical parameters, orbital elements, and dynamic stability of the multiple system ι UMa (HD 76644 = ADS 7114). We have used the positions from the WDS catalog and our own observations on the 6-m telescope ...
Flux-density variability of the blazar S5 1803+784 (J1800+7828) on a timescale of a month

Gorshkov A.; Konnikova V.; Mingaliev M.; Erkenov A. (2013)

The variability of the blazar S5 1803+784 (J1800+7828) on a timescale of a month is analyzed using daily RATAN-600 observations in 2009 (a total of 154 observations) at five frequences from 2.3 to 21.7 GHz. Cyclic variability ...
PG 1316+678: A young pre-cataclysmic binary with weak reflection effects

Shimansky V.; Borisov N.; Bikmaev I.; Sakhibullin N.; Shimanskaya N.; Spiridonova O.; Irtuganov E. (2013)

The PG 1316+678 star is classified as a pre-cataclysmic binary, as is evidenced by its photometric and spectroscopic observations. Its orbital period is determined to be Porb = 3. 3803d, which coincides with the photometric ...
Flux density variability of radio sources at declinations 10°-12°30′ (J2000) on time scales less than a month

Gorshkov A.; Konnikova V.; Mingaliev M. (2013)

Results of a search for and study of variability in a complete sample of flat-spectrum radio sources (83 objects) on time scales longer than a day are reported. The data were obtained in six series of daily observations ...
The intermediate-age pre-cataclysmic variables SDSS J172406+562003 and RE J2013+4002

Shimansky V.; Borisov N.; Nurtdinova D.; Mitrofanova A.; Vlasyuk V.; Spiridonova O. (2012)

We have analyzed the physical status of the pre-cataclysmic variables SDSSJ172406+562003 and RE J2013+4002, which have evolved after their common-envelope stage a time t = 10 6-10 7 years. Spectroscopy and photometry of ...
Long-term variability of a complete sample of flat-spectrum radio sources at declinations 10°-12°30′ (J2000)

Gorshkov A.; Konnikova V.; Mingaliev M. (2012)

The paper reports the results of ten-year centimeter-wavelength observations with the RATAN-600 radio telescope of a complete sample of 83 flat-spectrum sources from the GB6 catalog of the MGB Survey, with S 4.85 < 200 mJy ...
Observations of eclipses of UU Sge

Shimansky V.; Borisov N.; Bikmaev I.; Shimanskaya N. (2012)

We have performed spectroscopy and photometry of eclipses of the pre-cataclysmic variable UUSge using the 6-m telescope of the Special AstrophysicalObservatory and the 1. 5-mRussian-Turkish telescope. Our analysis of ...
Analysis of reflection effects in HS 2333+3927

Shimanskii V.; Yakin D.; Borisov N.; Bikmaev I. (2012)

The results of photometric and spectroscopic observations of the pre-cataclysmic variable HS 2333+3927, which is a HW Vir binary system, are analyzed. The parameters of the sdB subdwarf companion (T eff = 37 500 ± 500 K, ...
Solution of the kinematic equation for near-parabolic keplerian motion: Convergence of the series

Sannikova T.; Sudov L.; Kholshevnikov K. (2012)

In ephemeridical astronomy, an important role is played by the kinematic equation relating time and position in the orbit. Since the ephemerides have already been calculated for many hundreds of thousands of celestial ...
Chemical composition of δ Scuti stars: 1. AO CVn, CP Boo, KW Aur

Galeev A.; Ivanova D.; Shimansky V.; Bikmaev I. (2012)

We used high-resolution echelle spectra acquired with the 1. 5-m Russian-Turkish Telescope to determine the fundamental atmospheric parameters and abundances of 30 chemical elements for three δ Scuti stars: AOCVn, CP Boo, ...

Now showing items 17321-17340 of 24551

Search DSpace

Advanced Search

Browse

All of Kazan Federal University Digital Repository
This Community
- By Issue Date
- Authors
- Titles
- Subjects

Recently added

Научные публикации в Scopus: Recent submissions

Search DSpace

Browse

All of Kazan Federal University Digital Repository

This Community

My Account