A likely optical counterpart of the G292.0+1.8 pulsar wind nebula (2008)
Zharikov, S. V., Shibanov, Yu. A., Zyuzin, D. A., Mennickent, R. E., Komarova, V. N.
G292.0+1.8 is the Cas A-like supernova remnant containing the young pulsar PSR J1124-5916, which powers a compact torus-like pulsar wind nebula with a jet visible in X-rays. We have performed deep...
Zharikov, S. V., Tovmassian, G. H., Neustroev, V. V., Michel, R., Zurita, C., Echevarria, J., ...
We have observed a new cataclysmic variable (CV) SDSS J080434.20+510349.2 and study the origin of a long-term variability found in its light curve. Multi-longitude time-resolved photometric...
Possible optical detection of a fast, nearby radio pulsar PSR B1133+16 (2007)
Zharikov, S. V., Shibanov, Yu. A., Mennickent, R. E., Komarova, V. N.
Aims: We performed deep optical observations of the field of an old, fast-moving radio pulsar PSR B1133+16 in an attempt to detect its optical counterpart and a bow shock nebula. Methods: The...
On the orbital period of the magnetic Cataclysmic Variable HS 0922+1333 (2007)
Tovmassian, G. H., Zharikov, S. V.
Context: The object HS 0922+1333 was visited briefly in 2002 in a mini survey of low accretion rate polars (LARPs) in order to test if they undergo high luminosity states similar to ordinary polars....
PN g135.9+55.9: a new, extremely oxygen-poor planetary nebula in the galactic halo (2006)
V. H. Chavushyan, G. H. Tovmassian, F. Prada, C. Gutiérrez, S. V. Zharikov
PN g135.9+55.9: a new, extremely oxygen-poor planetary nebula in the galactic halo
The Multipupil Fiber Spectroscopy of the Crab-pulsar Neighbourhood (2006)
S. N. Dodonov, V. L. Afanasév, Yu. A. Shibanov, A. B. Koptsevich, S. V. Zharikov
The Multipupil Fiber Spectroscopy of the Crab-pulsar Neighbourhood
Neustroev, V. V., Zharikov, S. V., Michel, R.
We report simultaneous photometric and echelle-spectroscopic observations of the dwarf nova BZ UMa during which we were lucky to catch the system at the onset of an outburst, the development of which...
Time-resolved observations of the short period CV SDSS J123813.73-033933.0. (2006)
Zharikov, S.V., Tovmassian, G.H., Napiwotzki, R., Michel, R., Neustroev, V.
Time-resolved observations of the short period CV SDSS J123813.73-033933.0 (2005)
Zharikov, S. V., Tovmassian, G. H., Napiwotzki, R., Michel, R., Neustroev, V.
We observed a new and poorly studied cataclysmic variable (CV) SDSS J123813.73-033933.0 to determine its classification and binary parameters. Simultaneous time-resolved photometric and spectroscopic...
Neustroev, V. V., Zharikov, S. V., Tovmassian, G. H., Shearer, A.
We present the analysis of high-speed photometric observations of FS Aur taken with the 4.2-m William Herschel Telescope and the high-speed camera ULTRACAM in late 2003. These observations were...
Time-resolved Observations of the Short Period CV SDSS J123813.73-033933.0. (2005)
Zharikov, S.V., Tovmassian, G.H., Neustroev, V., Michel, R., Napiwotzki, R.
Time-resolved observations of the short period CV SDSS J123813.73-033933 (2004)
Zharikov, S. V., Tovmassian, G. H., Neustroev, V., Michel, R., Napiwotzki, R.
We present simultaneous spectral and photometric observations of SDSS J123813.73-033933.0. From Ha radial velocity measurements we determined the orbital period of the system to be 0.05592+/-0.00002...
Charles , P. A., Foulkes , S. B., Haswell , C. A., Hynes , R. I., Maxted , P. F. L., Murray , J. R., ...
Presentamos las trazas de espectrogramas orbitales de XTE J1118+480 tomados en el momento de alcanzar el máximo en 2000. Muestran un rasgo envolvente de onda S creciendo desde el impacto del chorro...
Aa 394, 633--639 (2002) (2003)
S. V. Zharikov, Yu. A. Shibanov, A. B. Koptsevich, N. Kawai, Y. Urata, V. N. Komarova, ...
We report the B band optical observations of an old (# 17.5 Myr) radiopulsar PSR B0950+08 obtained with the Suprime-Cam at the Subaru telescope. We detected a faint object, B = 27.
A new two-pole accretion polar: RX J1846.9+5538 (2002)
Schwarz, R., Greiner, J., Tovmassian, G. H., Zharikov, S. V., Wenzel, W.
We report the discovery of a new, bright (V = 17 mag) AM Her system as the optical counterpart of the soft ROSAT All-Sky-Survey source RX J1846.9+5538 (= 1RXS J184659.4+553834). Optical photometric...
Subaru optical observations of the old pulsar PSR B0950+08 (2002)
Zharikov, S. V., Shibanov, Yu. A., Koptsevich, A. B., Kawai, N., Urata, Y., Komarova, V. N., ...
We report the B band optical observations of an old (17.5 Myr) radiopulsar PSR B0950+08 obtained with the Suprime-Cam at the Subaru telescope. We detected a faint object, B=27.07(16). Within our...
RevMexAA (Serie de Conferencias), 12, 146-147 (2002) (2002)
G. H. Tovmassian, V. H. Chavushyan, S. V. Zharikov
We show that SBS1150+599A is most probably a planetary nebula located in the Galactic halo (becoming PN G135.9+55.9). Our photoionization models indicate that its oxygen abundance is lower than 1/100...
RevMexAA (Serie de Conferencias), 12, 146--147 (2002) (2002)
G. H. Tovmassian, G. Stasinska, V. H. Chavushyan, S. V. Zharikov, C. Gutierrez
We show that SBS 1150+599A is most probably a planetary nebula located in the Galactic halo (becoming PN G135.9+55.9). Our photoionization models indicate that its oxygen abundance is lower than...
A new two-pole accretion polar: RX J1846.9+5538 (2002)
Schwarz, R., Greiner, J., Tovmassian, G.H, Zharikov, S.V, Wenzel, W.
We report the discovery of a new, bright (V similar to 17(m)) AM Her system as the optical counterpart of the soft ROSAT All- Sky-Survey source RX J1846.9+5538 (=1RXS J184659.4+553834). Optical...
PN g135.9+55.9: a new, extremely oxygen-poor planetary nebula in the galactic halo (2002)
Chavushyan, V. H., Gutiérrez, C., Prada, F., Stasińska G., Tovmassian, G. H., Zharikov, S. V.
We show that SBS 1150+599A is most probably a planetary nebula located in the Galactic halo (becoming PN G135.9+55.9). Our photoionization models indicate that its oxygen abundance is lower than...
On the secondary star of the cataclysmic variable 1RXS J094432.1+035738 (2001)
Mennickent, R. E., Tovmassian, G., Zharikov, S. V., Tappert, C., Greiner, J., Gansicke, B. T., ...
We present V and Rc band photometry and optical near-infrared spectroscopy of the cataclysmic variable 1RXS J094432.1+035738. We detected features of a cool secondary star, which can be modeled with...
The Multipupil Fiber Spectroscopy Of The Crab-Pulsar (2001)
S. V. Zharikov, Yu. A. Shibanov, A. B. Koptsevich, V. L. Afanasev, S. N. Dodonov
We present the spatially resolved optical spectroscopy of the 12 Crab pulsar neighbourhood in the range 4600 5700 A made with the Multipupil Fiber Spectrograph at the 6 m telescope of the SAO RAS....
The Multipupil Fiber Spectroscopy Of The Crab-Pulsar (2001)
S. V. Zharikov, Yu. A. Shibanov, A. B. Koptsevich, V. L. Afanasev, S. N. Dodonov
We present the spatially resolved optical spectroscopy of the 12 ## 24 ## Crab pulsar neighbourhood in the range ##4600-5700 A made with the Multipupil Fiber Spectrograph at the 6 m telescope of the...
The new cataclysmic variable RX J1554.2+2721 in the period gap (2001)
Tovmassian, G. H., Greiner, J., Zharikov, S. V., Echevarria, J., Kniazev, A.
We report on the results of a spectroscopic and photometric study of a new cataclysmic variable, identified as optical counterpart of the X-ray source RX J1554.2+2721 detected by ROSAT. The...
The New AM Her System RX J0704.2+6203. Northern Twin of BL Hyi (2001)
Tovmassian, G. H., Szkody, P., Greiner, J., Zharikov, S. V., Serrano, A., ...
We report here on the identification and study of the optical counterpart of the ROSAT source RX J0704.2+6203. Extensive spectral and photometric observation showed that the object belongs to the...
Optical photometry of the PSR B0656+14 and its neighborhood (2001)
A. B. Koptsevich, G. G. Pavlov, S. V. Zharikov, V. V. Sokolov, V. G. Kurt
. We present the results of broad-band photometry of the nearby middle-aged radio pulsar PSR B0656+14 and its neighborhood obtained with the 6-meter telescope of the SAO RAS and with the Hubble Space...
The multipupil fiber spectroscopy of the crab-pulsar neighbourhood (2001)
Afanasév , V. L., Dodonov , S. N., Koptsevich , A. B., Shibanov , Yu. A., Zharikov , S. V.
We present the spatially resolved optical spectroscopy of the 1200 2400 Crab pulsar neighbourhood in the range 4600 - 5700 A made with the Multipupil Fiber Spectrograph at the 6 m telescope of the...
Optical photometry of the PSR B0656+14 and its neighborhood (2000)
Koptsevich, A. B., Pavlov, G. G., Zharikov, S. V., Sokolov, V. V., Shibanov, Yu. A., Kurt, V. G.
We present the results of the broad-band photometry of the nearby middle-aged radio pulsar PSR B0656+14 and its neighborhood obtained with the 6-meter telescope of the SAO RAS and with the Hubble...
BVR_cI_c light curves of GRB970508 optical remnant and magnitudes of underlying host galaxy (1999)
Zharikov, S. V., Sokolov, V. V.
The observations with the SAO-RAS 6-m telescope in July-August 1998 show that the GRB970508 optical remnant has varied very little since November 1997. We can conclude that we observe a proper host...
Properties of the host galaxy of the gamma-ray burst 970508 and local star-forming galaxies (1998)
Sokolov, V. V., Zharikov, S. V., Baryshev, Yu. V., Hanski, M. O., Nilsson, K., Teerikorpi, P., ...
Late-time observations of GRB970508 with the SAO-RAS 6-m telescope in July-August 1998 show that the optical transient (OT) varies very little since November 1997. Here we report the $BVR_cI_c$...
BVR_cI_c light curves of GRB970508 optical remnant and colors of underlying host galaxy (1998)
Zharikov, S. V., Sokolov, V. V., Baryshev, Yu. V.
Optical observations of the GRB 970508 optical remnant were continued with the 6-m telescope of SAO RAS in standard BVRcIc bands in Oct.-Dec.1997 and in Jan. 1998. The results of the photometry of...
BVRcIc photometry of GRB970508 optical remnant: May-August, 1997 (1998)
Sokolov, V. V., Kopylov, A. I., Zharikov, S. V., Feroci, M., Nicastro, L., Palazzi, E.
We present the results of photometric observations of the variable optical source associated to the remnant of the gamma-ray burst GRB970508 performed at SAO RAS (Russia) from May to August 1997. The...
Multicolor photometry of the GRB970508 optical remnant (1997)
Sokolov, V. V., Kopylov, A. I., Zharikov, S. V., Costa, E., Feroci, M., Nicastro, L., ...
We report results of follow-up multicolor photometry of the optical variable source that is a probable remnant of the gamma-ray burst GRB970508 discovered by the BeppoSAX satellite (IAUC 6649)....
Deep photometric study of the region of the gamma-ray burst localization of June 13, 1979 (1997)
Sokolov, V. V., Kurt, V. G., Zharikov, S. V., Kopylov, A. I., Berezin, A. V.
In the framework of the hypothesis on potential sources of some gamma-ray bursts being single compact objects of neutron star type with finite surface temperature in the vicinity of the Sun a method...
BVRI observations of PSR B0656+14 with the 6-meter telescope (1997)
Kurt, V. G., Sokolov, V. V., Zharikov, S. V., Pavlov, G. G., Komberg, B. V.
We observed the middle-aged radio pulsar 0656+14 with a CCD detector at the 6-m telescope. Broadband BVRI images show the following magnitudes of the pulsar counterpart: B = 24.85 (+0.19, -0.16), V =...