Zobrazeno 1 - 10
of 743
pro vyhledávání: '"Wren, J"'
Autor:
Vestrand, W. T., Wren, J., Panaitescu, A., Wozniak, P., Davis, H., Palmer, D., Vianello, G., Omodei, N., Xiong, S., Briggs, M., Elphick, M., Rosing, W.
The optical light that is generated simultaneously with the x-rays and gamma-rays during a gamma-ray burst (GRB) provides clues about the nature of the explosions that occur as massive stars collapse to form black holes. We report on the bright optic
Externí odkaz:
http://arxiv.org/abs/1311.5489
Autor:
Kozlowski, Szymon, Kochanek, C. S., Stern, D., Prieto, J. L., Stanek, K. Z., Thompson, T. A., Assef, R. J., Drake, A. J., Szczygiel, D. M., Wozniak, P. R., Nugent, P., Ashby, M. L. N., Beshore, E., Brown, M. J. I., Dey, Arjun, Griffith, R., Harrison, F., Jannuzi, B. T., Larson, S., Madsen, K., Pilecki, B., Pojmanski, G., Skowron, J., Vestrand, W. T., Wren, J. A.
We report the discovery of a six-month-long mid-infrared transient, SDWFS-MT-1 (aka SN 2007va), in the Spitzer Deep, Wide-Field Survey of the NOAO Deep Wide-Field Survey Bootes field. The transient, located in a z=0.19 low luminosity (M_[4.5]~-18.6 m
Externí odkaz:
http://arxiv.org/abs/1006.4162
Autor:
Yuan, F., Schady, P., Racusin, J. L., Willingale, R., Kruhler, T., O'Brien, P. T., Greiner, J., Oates, S. R., Rykoff, E. S., Aharonian, F., Akerlof, C. W., Ashley, M. C. B., Barthelmy, S. D., Filgas, R., Flewelling, H. A., Gehrels, N., Gogus, E., Guver, T., Horns, D., Kiziloglu, U., Krimm, H. A., McKay, T. A., Ozel, M. E., Pandey, S. B., Phillips, A., Quimby, R. M., Rowell, G., Rujopakarn, W., Schaefer, B. E., Vestrand, W. T., Wheeler, J. C., Wren, J., Zheng, W.
We present a multi-wavelength study of GRB 081008, at redshift 1.967, by Swift, ROTSE-III and GROND. Compared to other Swift GRBs, GRB 081008 has a typical gamma-ray isotropic equivalent energy output (10^53 erg) during the prompt phase, and displaye
Externí odkaz:
http://arxiv.org/abs/1002.0581
Autor:
Rykoff, E. S., Aharonian, F., Akerlof, C. W., Ashley, M. C. B., Barthelmy, S. D., Flewelling, H. A., Gehrels, N., Gogus, E., Guver, T., Kiziloglu, U., Krimm, H. A., McKay, T. A., Ozel, M., Phillips, A., Quimby, R. M., Rowell, G., Rujopakarn, W., Schaefer, B. E., Smith, D. A., Vestrand, W. T., Wheeler, J. C., Wren, J., Yuan, F., Yost, S. A.
Publikováno v:
Astrophys.J.702:489-505,2009
We report on a complete set of early optical afterglows of gamma-ray bursts (GRBs) obtained with the ROTSE-III telescope network from March 2005 through June 2007. This set is comprised of 12 afterglows with early optical and Swift/XRT observations,
Externí odkaz:
http://arxiv.org/abs/0904.0261
Publikováno v:
Astrophys.J.691:495-502,2009
On 19 March 2008, the northern sky was the stage of a spectacular optical transient that for a few seconds remained visible to the naked eye. The transient was associated with GRB 080319B, a gamma-ray burst at a luminosity distance of about 6 Gpc (st
Externí odkaz:
http://arxiv.org/abs/0810.2481
Autor:
Yost, S. A., Aharonian, F., Akerlof, C. W., Ashley, M. C. B., Barthelmy, S., Gehrels, N., Gogus, E., Guver, T., Horns, D., Kiziloglu, U., Krimm, H. A., McKay, T. A., Ozel, M., Phillips, A., Quimby, R. M., Rowell, G., Rujopakarn, W., Rykoff, E. S., Schaefer, B. E., Smith, D. A., Swan, H. F., Vestrand, W. T., Wheeler, J. C., Wren, J., Yuan, F.
We present several cases of optical observations during gamma-ray bursts (GRBs) which resulted in prompt limits but no detection of optical emission. These limits constrain the prompt optical flux densities and the optical brightness relative to the
Externí odkaz:
http://arxiv.org/abs/0707.3132
Autor:
Ruiz-Velasco, A. E., Swan, H., Troja, E., Malesani, D., Fynbo, J. P. U., Starling, R. L. C., Xu, D., Aharonian, F., Akerlof, C., Andersen, M. I., Ashley, M. C. B., Barthelmy, S. D., Bersier, D., Cerón, J. M. Castro, Castro-Tirado, A. J., Gehrels, N., Göğüş, E., Gorosabel, J., Guidorzi, C., Güver, T., Hjorth, J., Horns, D., Huang, K. Y., Jakobsson, P., Jensen, B. L., Kızıloģlu, Ü., Kouveliotou, C., Krimm, H. A., Ledoux, C., Levan, A. J., Marsh, T., McKay, T., Melandri, A., Milvang-Jensen, B., Mundell, C. G., O'Brien, P. T., Özel, M., Phillips, A., Quimby, R., Rowell, G., Rujopakarn, W., Rykoff, E. S., Schaefer, B. E., Sollerman, J., Tanvir, N. R., Thöne, C. C., Urata, Y., Vestrand, W. T., Vreeswijk, P. M., Watson, D., Wheeler, J. C., Wijers, R. A. M. J., Wren, J., Yost, S. A., Yuan, F., Zhai, M., Zheng, W. K.
Publikováno v:
Astrophys.J. 669 (2007) 1-9
We report on follow-up observations of the GRB 060927 using the ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected 20 s after the burst, the earliest rest-frame detection of optical emission
Externí odkaz:
http://arxiv.org/abs/0706.1257
Autor:
Perley, D. A., Bloom, J. S., Butler, N. R., Pollack, L. K., Holtzman, J., Blake, C. H., Kocevski, D., Vestrand, W. T., Li, W., Foley, R. J., Bellm, E., Chen, H. -W., Prochaska, J. X., Starr, D., Filippenko, A. V., Falco, E. E., Szentgyorgyi, A. H., Wren, J., Wozniak, P. R., White, R., Pergande, J.
We report on observations of a gamma-ray burst (GRB 061126) with an extremely bright (R ~ 12 mag at peak) early-time optical afterglow. The optical afterglow is already fading as a power law 22 seconds after the trigger, with no detectable prompt con
Externí odkaz:
http://arxiv.org/abs/astro-ph/0703538