Browsing by Author "Aslan Z."

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  • 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 ...
  • Around-the-clock observations of the Q0957+561A,B gravitationally lensed quasar. II. Results for the second observing season 
    Colley W.; Schild R.; Abajas C.; Alcalde D.; Aslan Z.; Bikmaev I.; Chavushyan V.; Chinarro L.; Cournoyer J.; Crowe R.; Dudinov V.; Evans A.; Jeon Y.; Goicoechea L.; Golbasi O.; Khamitov I.; Kjernsmo K.; Lee H.; Lee J.; Lee K.; Lee M.; Lopez-Cruz O.; Mediavilla E.; Moffat A.; Mujica R.; Ullan A.; Muñoz J.; Oscoz A.; Park M.; Purves N.; Saanum O.; Sakhibullin N.; Serra-Ricart M.; Sinelnikov I.; Stabell R.; Stockton A.; Teuber J.; Thompson R.; Woo H.; Zheleznyak A. (2003)
    We report on an observing campaign in 2001 March to monitor the brightness of the later arriving Q0957+561B image in order to compare with the previously published brightness observations of the (first-arriving) A image. ...
  • Astrometric results of observations of mutual occultations and eclipses of the Uranian satellites in 2007 
    Arlot J.; Emelyanov N.; Aslan Z.; Assafin M.; Bel J.; Bhatt B.; Braga-Ribas F.; Camargo J.; Casas R.; Colas F.; Coliac J.; Dumas C.; Ellington C.; Forné E.; Frappa E.; Khamitov I.; Miller C.; Modic R.; Sahu D.; Sicardy B.; Tanga P.; Valdes Sada P.; Vasundhara R.; Vieira-Martins R. (2013)
    Context. The photometry of mutual occultations and eclipses of natural planetary satellites can be used to infer very accurate astrometric data. This can be achieved by processing the light curves of the satellites observed ...
  • Disk precession and quasi-periodic brightness oscillations of V603 Aql in 2001-2002 
    Suleimanov V.; Bikmaev I.; Belyakov K.; Sakhibullin N.; Zhukov G.; Aslan Z.; Kiziloglu U.; Khamitov I. (2004)
    We present the photometric observations of the old nova V603 Aql with the RTT 150 Russian-Turkish telescope during eleven nights of 2001-2002. We show that the star at this time was in a state with positive superhumps and ...
  • Extensive multiband study of the X-ray rich GRB 050408: A likely off-axis event with an intense energy injection 
    De Ugarte Postigo A.; Fatkhullin T.; Jóhannesson G.; Gorosabel J.; Sokolov V.; Castro-Tirado A.; Balega Y.; Spiridonova O.; Jelínek M.; Guziy S.; Pérez-Ramírez D.; Hjorth J.; Laursen P.; Bersier D.; Pandey S.; Bremer M.; Monfardini A.; Huang K.; Urata Y.; Ip W.; Tamagawa T.; Kinoshita D.; Mizuno T.; Arai Y.; Yamagishi H.; Soyano T.; Usui F.; Tashiro M.; Abe K.; Onda K.; Aslan Z.; Khamitov I.; Ozisik T.; Kiziloglu U.; Bikmaev I.; Sakhibullin N.; Burenin R.; Pavlinsky M.; Sunyaev R.; Bhattacharya D.; Kamble A.; Chandra C.; Trushkin S. (2007)
    Aims. Understand the shape and implications of the multiband ligth curve of GRB 050408, an X-ray rich (XRR) burst. Methods. We present a multiband optical light curve, covering the time from the onset of the γ-ray event ...
  • First simultanous X-ray and optical observations of rapid variability of supercritical accretor SS433 
    Revnivtsev M.; Burenin R.; Fabrika S.; Postnov K.; Bikmaev I.; Pavlinsky M.; Sunyaev R.; Khamitov I.; Aslan Z. (2004)
    We present results of first simultaneous optical and X-ray observations of peculiar binary system SS433. For the first time, chaotic variability of SS433 in the optical spectral band (R band) on time scales as small as ...
  • INTEGRAL observations of SS433: Results of a coordinated campaign 
    Cherepashchuk A.; Sunyaev R.; Fabrika S.; Postnov K.; Molkov S.; Barsukova E.; Antokhina E.; Irsmambetova T.; Panchenko I.; Seifina E.; Shakura N.; Timokhin A.; Bikmaev I.; Sakhibullin N.; Aslan Z.; Khamitov I.; Pramsky A.; Sholukhova O.; Gnedin Y.; Arkharov A.; Larionov V. (2005)
    Results of simultaneous INTEGRAL and optical observations of the galactic microquasar SS433 in May 2003 and INTEGRAL/RXTE observations in March 2004 are presented. Persistent precessional variability with a maximum to ...
  • Observations of the optical afterglow from GRB 060526 with the RTT-150 telescope 
    Khamitov I.; Burenin R.; Bikmaev I.; Sakhibullin N.; Pavlinsky M.; Sunyaev R.; Aslan Z. (2007)
    Multicolor photometric observations of the optical afterglow from GRB 060526 with the Russian-Turkish 1.5-m RTT-150 telescope (Mount Bakyrlytepe, Turkey) are presented. The afterglow light curve was measured in detail ...
  • Optical counterpart positions of extragalactic radio sources and connecting optical and radio reference frames 
    Aslan Z.; Gumerov R.; Jin W.; Khamitov I.; Maigurova N.; Pinigin G.; Tang Z.; Wang S. (2010)
    We discuss the results of an investigation of astrometric positions of extragalactic radio sources from a list for the International Celestial Reference Frame. About 300 fields around extragalactic radio sources were ...
  • Optical observations of SBS1520+530 at TUG 
    Khamitov I.; Bikmaev I.; Aslan Z.; Sakhibullin N.; Vlasyuk V.; Zheleznyak A. (2008)
    We present the light curves of the components of gravitationally lensed source SBS1520+530 in Rc band, obtained during the interval 2001-2005 with the 1.5 m Russian-Turkish Telescope RTT150 at TÜBITAK National Observatory ...
  • Photometry and spectroscopy of IGR J21247+5058 radiogalaxy with RTT150 
    Khamitov I.; Bikmaev I.; Sakhibullin N.; Aslan Z.; Revnivtsev M.; Sunyaev R. (2006)
    We present the results of photometry and spectroscopy of IGR J21247+5058 made by using the 1.5-m optical telescope RTTl50 with Andor CCD and TFOSC instrument. R-band images obtained at 0.8 arcsec seeing conditions have ...
  • Position observations of NEAs at the RTT150 
    Ivantsov A.; Aslan Z.; Gumerov R.; Hudkova L.; Khamitov I.; Pinigin G. (2008)
    In 2004-2007, 560 observations of 17 Near-Earth Asteroids of 15-21 magnitudes were made at the Russian-Turkish telescope (RTT150). The reduction was made using reference stars from the UCAC2 and USNO-B1 catalogues. The ...
  • Preliminary results of the alignment and Hartmann tests of the AZT-22 telescope 
    Aslan Z.; Bikmaev I.; Vitrichenko E.; Gumerov R.; Dembo L.; Kamus S.; Keskin V.; Kiziloglu U.; Pavlinsky M.; Panteleev L.; Sakhibullin N.; Selam S.; Sunyaev R.; Khamitov I.; Yaskovich A. (2001)
    The AZT-22 telescope installed in Turkey (Antalia) was aligned and tested on stars by the Hartmann method. The rms normal deviation of an equivalent optical system is 0.040 ± 0.016 μm. The circle of confusion is 0.40 ± ...
  • Results of observations of asteroids at the Russian–Turkish RTT-150 telescope from 2004–2013 
    Gumerov R.; Khamitov I.; Hudkova L.; Maigurova N.; Pinigin G.; Kochetova O.; Chernetenko Y.; Aslan Z.; Pomazan A.; Kryuchkovskiy V. (2015)
    © 2015, Allerton Press, Inc. We report the results of analysis of the data volume containing 13834 topocentric positions of 231 asteroids obtained from observations at the Russian–Turkish RTT-150 telescope (TÜBITAK (Scientific ...
  • Some results from the National Observatory of Turkey, Kazan State University, and Nikolaev Astronomical Observatory on small bodies of the solar system 
    Aslan Z.; Gumerov R.; Pinigin G. (2008)
    A scientific collaboration between TÜBİTAK National Observatory (Turkey), Kazan State University (Russia) and Nikolaev Astronomical Observatory (Ukraine) involves observations of minor planets and near-Earth asteroids ...
  • The First Hours of the Optical Afterglow from the Cosmic Gamma-Ray Burst 030329 
    Burenin R.; Sunyaev R.; Pavlinsky M.; Denisenko D.; Terekhov O.; Tkachenko A.; Aslan Z.; Khamitov I.; Uluch K.; Alpar M.; Kiziloglu U.; Baikal A.; Bikmaev I.; Sakhibullin N.; Suleymanov V. (2003)
    We describe the first results of our observations of the exceptionally bright optical afterglow from the cosmic gamma-ray burst (GRB) of March 29, 2003 (030329), with the 1.5-m Russian-Turkish telescope (RTT 150) installed ...

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