Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Donaghy, T"'
Autor:
Arimoto, M., Kawai, N., Asano, K., Hurley, K., Suzuki, M., Nakagawa, Y. E., Shimokawabe, T., Pazmino, N. V., Sato, R., Matsuoka, M., Yoshida, A., Tamagawa, T., Shirasaki, Y., Sugita, S., Takahashi, I., Atteia, J. -L., Pelangeon, A., Vanderspek, R., Graziani, C., Prigozhin, G., Villasenor, J., Jernigan, J. G., Crew, G. B., Sakamoto, T., Ricker, G. R., Woosley, S. E., Butler, N., Levine, A., Doty, J. P., Donaghy, T. Q., Lamb, D. Q., Fenimore, E., Galassi, M., Boer, M., Dezalay, J. -P., Olive, J. -F., Braga, J., Manchanda, R., Pizzichini, G.
Using a pulse-fit method, we investigate the spectral lags between the traditional gamma-ray band (50-400 keV) and the X-ray band (6-25 keV) for 8 GRBs with known redshifts (GRB 010921, GRB 020124, GRB 020127, GRB 021211, GRB 030528, GRB 040924, GRB
Externí odkaz:
http://arxiv.org/abs/1002.3849
Autor:
Pélangeon, A., Atteia, J. -L., Nakagawa, Y. E., Hurley, K., Yoshida, A., Vanderspek, R., Suzuki, M., Kawai, N., Pizzichini, G., Boër, M., Braga, J., Crew, G., Donaghy, T. Q., Dezalay, J. P., Doty, J., Fenimore, E. E., Galassi, M., Graziani, C., Jernigan, J. G., Lamb, D. Q., Levine, A., Manchanda, J., Martel, F., Matsuoka, M., Olive, J. -F., Prigozhin, G., Ricker, G. R., Sakamoto, T., Shirasaki, Y., Sugita, S., Takagishi, K., Tamagawa, T., Villasenor, J., Woosley, S. E., Yamauchi, M.
Publikováno v:
Astron.Astrophys.491:157-171,2008
Aims: Taking advantage of the forthcoming Catalog of the HETE-2 mission, the aim of this paper is to evaluate the main properties of HETE-2 GRBs - the E_peak, the T_90 and the E_iso - in their source frames and to derive their unbiased distribution.
Externí odkaz:
http://arxiv.org/abs/0811.3304
Autor:
Stratta, G., Basa, S., Butler, N., Atteia, J. L., Gendre, B., Pelangeon, A., Malacrino, F., Mellier, Y., Kann, D. A., Klose, S., Zeh, A., Masetti, N., Palazzi, E., Gorosabel, J., Castro-Tirado, A. J., Postigo, A. de Ugarte, Jelinek, M., Cepa, J., Castaneda, H., Martinez-Delgado, D., Boer, M., Braga, J., Crew, G., Donaghy, T. Q., Dezalay, J. -P., Doty, J., Fenimore, E. E., Galassi, M., Graziani, C., Jernigan, J. G., Kawai, N., Lamb, D. Q., Levine, A., Manchanda, J., Martel, F., Matsuoka, M., Nakagawa, Y., Olive, J. -F., Pizzichini, G., Prigozhin, G., Ricker, G., Sakamoto, T., Shirasaki, Y., Sugita, S., Suzuki, M., Takagishi, K., Tamagawa, T., Vanderspek, R., Villasenor, J., Woosley, S. E., Yamauchi, M., Yoshida, A.
Publikováno v:
Astron.Astrophys. 461 (2007) 485-492
In this work, we present a multi-wavelength study of XRF 040912, aimed at measuring its distance scale and the intrinsic burst properties. We performed a detailed spectral and temporal analysis of both the prompt and the afterglow emission and we est
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610157
Autor:
Donaghy, T. Q., Lamb, D. Q., Sakamoto, T., Norris, J. P., Nakagawa, Y., Villasenor, J., Atteia, J. -L., Vanderspek, R., Graziani, C., Kawai, N., Ricker, G. R., Crew, G. B., Doty, J., Prigozhin, G., Jernigan, J. G., Shirasaki, Y., Suzuki, M., Butler, N., Hurley, K., Tamagawa, T., Yoshida, A., Matsuoka, M., Fenimore, E. E., Galassi, M., Boer, M., Dezalay, J. -P., Olive, J. -F., Levine, A., Martel, F., Morgan, E., Sato, R., Woosley, S. E., Braga, J., Manchanda, R., Pizzichini, G., Takagishi, K., Yamauchi, M.
Here we report the localizations and properties of four short-duration GRBs localized by the High Energy Transient Explorer 2 satellite (HETE-2): GRBs 010326B, 040802, 051211 and 060121, all of which were detected by the French Gamma Telescope (Frega
Externí odkaz:
http://arxiv.org/abs/astro-ph/0605570
Autor:
Postigo, A. de Ugarte, Castro-Tirado, A. J., Guziy, S., Gorosabel, J., Johannesson, G., Aloy, M. A., McBreen, S., Lamb, D. Q., Benitez, N., Jelinek, M., Pandey, S. B., Coe, D., Perez-Ramirez, M. D., Aceituno, F. J., Alises, M., Acosta-Pulido, J. A., Gomez, G., Lopez, R., Donaghy, T. Q., Nakagawa, Y. E., Sakamoto, T., Ricker, G. R., Hearty, F. R., Bayliss, M., Gyuk, G., York, D. G.
Publikováno v:
Astrophys.J.648:L83-L88,2006
Since the discovery of the first short-hard gamma-ray burst afterglows in 2005, the handful of observed events have been found to be embedded in nearby (z < 1), bright underlying galaxies. We present multiwavelength observations of the short-duration
Externí odkaz:
http://arxiv.org/abs/astro-ph/0605516
Autor:
Donaghy, T. Q.
Publikováno v:
Astrophys.J.645:436-449,2006
Gamma-Ray Bursts (GRBs) are widely thought to originate from collimated jets of material moving at relativistic velocities. Emission from such a jet should be visible even when viewed from outside the angle of collimation. I summarize recent work on
Externí odkaz:
http://arxiv.org/abs/astro-ph/0512577
Autor:
Villasenor, J. S., Lamb, D. Q., Ricker, G. R., Atteia, J. -L., Kawai, N., Butler, N., Nakagawa, Y., Jernigan, J. G., Boer, M., Crew, G. B., Donaghy, T. Q., Doty, J., Fenimore, E. E., Galassi, M., Graziani, C., Hurley, K., Levine, A., Martel, F., Matsuoka, M., Olive, J. -F., Prigozhin, G., Sakamoto, T., Shirasaki, Y., Suzuki, M., Tamagawa, T., Vanderspek, R., Woosley, S. E., Yoshida, A., Braga, J., Manchanda, R., Pizzichini, G., Takagishi, K., Yamauchi, M.
Publikováno v:
Nature 437:855-858,2005
Gamma-Ray Bursts (GRBs) fall into two classes: short-hard and long-soft bursts. The latter are now known to have X-ray and optical afterglows, to occur at cosmological distances in star-forming galaxies, and to be associated with the explosion of mas
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510190
Publikováno v:
AIP Conf.Proc.836:117-120,2006
HETE-II and BeppoSAX have produced a sample of GRBs and XRFs with known redshifts and $E_{pk}$. This sample provides four important empirical constraints on the nature of the source jets: Log $E_{iso}$ is approximately uniformly distributed over seve
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505623
Autor:
Donaghy, T. Q.
Publikováno v:
Nuovo Cim.C28:407-410,2005
Gamma-Ray Bursts (GRBs) are widely thought to originate from collimated jets of material moving at relativistic velocities. Emission from such a jet should be visible even when viewed from outside the angle of collimation. Using Monte Carlo populatio
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505152
Publikováno v:
Nuovo Cim.C28:365-372,2005
One third of all HETE-2--localized bursts are X-Ray Flashes (XRFs), a class of events first identified by Heise in which the fluence in the 2-30 keV energy band exceeds that in the 30-400 keV energy band. We summarize recent HETE-2 and other results
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505156