M. Ibrahimov

CCD Photometry of Standard Stars at Maidanak Astronomical Observatory in Uzbekstan: Transformations and Comparisons (2009)

Lim, B., Sung, H., Bessell, M. S., Karimov, R., Ibrahimov, M.

Observation of standard stars is of crucial importance in stellar photometry. We have studied the standard transformation relations of the UBVRI CCD photometric system at the Maidanak Astronomical...

A multiwavelength study of Swift GRB 060111B constraining the origin of its prompt optical emission (2009)

Stratta, G., Pozanenko, A., Atteia, J-L., Klotz, A., Basa, S., Gendre, B., ...

In this work, we present the results obtained from a multi-wavelength campaign, as well as from the public Swift/BAT, XRT, and UVOT data of GRB 060111B for which a bright optical emission was...

Multi-wavelength observations of afterglow of GRB 080319B and the modeling constraints (2009)

Pandey, S. B., Castro-Tirado, A. J., Jelínek, M., Kamble, Atish P., Gorosabel, J., Postigo, A. De Ugarte, ...

We present observations of the afterglow of GRB 080319B at optical, mm and radio frequencies from a few hours to 67 days after the burst. Present observations along with other published...

Evidence for energy injection and a fine-tuned central engine at optical wavelengths in GRB 070419A (2009)

Melandri, A., Guidorzi, C., Kobayashi, S., Bersier, D., Mundell, C. G., Milne, P., ...

We present a comprehensive multiwavelength temporal and spectral analysis of the FRED GRB 070419A. The early-time emission in the $\gamma$-ray and X-ray bands can be explained by a central engine...

Photometry and Spectroscopy of GRB 060526: A detailed study of the afterglow and host of a high-redshift gamma-ray burst (2008)

Thoene, C. C., Kann, D. A., Johannesson, G., Selj, J. H., Jaunsen, A., Fynbo, J. P. U., ...

With this paper we want to investigate the highly variable afterglow light curve and environment of Gamma-Ray Burst (GRB) 060526 at z=3.221. We present one of the largest photometric datasets ever...

Multiwavelength analysis of the intriguing GRB 061126: the reverse shock scenario and magnetization (2008)

Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...

We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multi-color optical imaging from ten ground-based telescopes. GRB 061126 was a...

Multiwavelength analysis of the intriguing GRB 061126: The reverse shock scenario and magnetization (2008)

Gomboc, A., Kobayashi, S., Guidorzi, C., Melandri, A., Mangano, V., Sbarufatti, B., ...

We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long...

COSMOGRAIL: the COSmological MOnitoring of GRAvItational lenses - V. The time delay in SDSS j1650+4251 (2007)

Courbin, F, Sluse, D, Meylan, G, Ibrahimov, M, Asfandiyarov, I, ...

Our aim is to measure the time delay between the two gravitationally lensed images of the z(qso) = 1.547 quasar SDSS J1650+ 4251, in order to estimate the Hubble constant H-0.

The nature of the X-Ray Flash of August 24 2005 (2007)

Sollerman, J., Fynbo, J. P. U., Gorosabel, J., Halpern, J. P., Hjorth, J., Jakobsson, P., ...

We present comprehensive photometric R-band observations of the fading optical afterglow of the X-Ray Flash XRF050824, from 11 minutes to 104 days after the burst. The R-band lightcurve of the...

The nature of the x-ray flash of August 24 2005. (2007)

Sollerman, J., Fynbo, J., Gorosabel, J., Halpern, J.P., Hjorth, J., Jakobsson, P., ...

Very early multi-color observations of the plateau phase of GRB 041006 afterglow (2006)

Urata, Y., Huang, K. Y., Qiu, Y. L., Hu, J., Kuo, P. H., Tamagawa, T., ...

Observations of the optical afterglow of GRB 041006 with the Kiso Observatory 1.05 m Schmidt telescope, the Lulin Observatory 1.0 m telescope and the Xinglong Observatory 0.6 m telescope. Three-bands...

COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses V. The time delay in SDSS J1650+4251 (2006)

Vuissoz, C., Courbin, F., Sluse, D., Meylan, G., Ibrahimov, M., Asfandiyarov, I., ...

Aims: Our aim is to measure the time delay between the two gravitationally lensed images of the z = 1.547 quasar SDSS J1650+4251, in order to estimate the Hubble constant H_0. Methods: Our...

Spitzer-IRS Observations of FU Orionis Objects (2006)

Green, J. D., Hartmann, L., Calvet, N., Watson, D. M., Ibrahimov, M., Furlan, E., ...

We present 5-35 $\mu$m spectra, taken with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope, of five FU Orionis objects: FU Ori, V1515 Cyg, V1057 Cyg, BBW 76, and V346 Nor. All but V346...

Coordinated multiwavelength observation of 3C 66A during the WEBT campaign of 2003-2004 (2005)

Bottcher, M., Harvey, J., Joshi, M., Villata, M., Raiteri, C. M., Bramel, D., ...

The BL Lac object 3C 66A was the target of an extensive multiwavelength monitoring campaign from 2003 July through 2004 April (with a core campaign from 2003 September to 2003 December) involving...

Coordinated multiwavelength observation of 3C 66A during the WEBT campaign of 2003-2004 (2005)

Bottcher, M., Harvey, J., Joshi, M., Villata, M., Raiteri, C. M., Bramel, D., ...

The BL Lac object 3C 66A was the target of an extensive multiwavelength monitoring campaign from 2003 July through 2004 April (with a core campaign from 2003 September to 2003 December) involving...