Zobrazeno 1 - 10
of 769
pro vyhledávání: '"Kann, D."'
Autor:
Greiner, J., Krühler, T., Bolmer, J., Klose, S., Afonso, P. M. J., Elliott, J., Filgas, R., Graham, J. F., Kann, D. A., Knust, F., Yoldaş, A. Küpcü, Nardini, M., Guelbenzu, A. M. Nicuesa, Estay, F. Olivares, Rossi, A., Schady, P., Schweyer, T., Sudilovsky, V., Varela, K., Wiseman, P.
A dedicated gamma-ray burst (GRB) afterglow observing program was performed between 2007 and 2016 with GROND, a seven-channel optical and near-infrared imager at the 2.2m telescope of the Max-Planck Society at ESO/La Silla. In this first of a series
Externí odkaz:
http://arxiv.org/abs/2410.14441
Autor:
Fu, Shao-Yu, Xu, Dong, Lei, Wei-Hua, Postigo, Antonio de Ugarte, Kann, D. Alexander, Thöne, Christina C., Fernández, José Feliciano Agüí, Shuang-Xi, Yi, Xie, Wei, Zou, Yuan-Chuan, Liu, Xing, Jiang, Shuai-Qing, Lu, Tian-Hua, An, Jie, Zhu, Zi-Pei, Zheng, Jie, Tang, Qing-Wen, Zhao, Peng-Wei, Xin, Li-Ping, Wei, Jian-Yan
We present our optical observations and multi-wavelength analysis of the GRB\,200613A detected by \texttt{Fermi} satellite. Time-resolved spectral analysis of the prompt $\gamma$-ray emission was conducted utilizing the Bayesian block method to deter
Externí odkaz:
http://arxiv.org/abs/2407.15824
Autor:
Wichern, H. C. I., Ravasio, M. E., Jonker, P. G., Quirola-Vásquez, J. A., Levan, A. J., Bauer, F. E., Kann, D. A.
Extragalactic fast X-ray transients (FXTs) are short-duration ($\sim$ ks) X-ray flashes of unknown origin, potentially arising from binary neutron star mergers. We investigate the possible link between FXTs and the afterglows of off-axis merger-induc
Externí odkaz:
http://arxiv.org/abs/2407.06371
Autor:
Pugliese, G., Saccardi, A., Elia, V. D, Vergani, S. D., Heintz, K. E., Savaglio, S., Kaper, L., Postigo, A. de Ugarte, Hartmann, D. H., De Cia, A., Vejlgaard, S., Fynbo, J. P. U., Christensen, L., Campana, S., van Rest, D., Selsing, J., Wiersema, K., Malesani, D. B., Covino, S., Burgarella, D., De Pasquale, M., Jakobsson, P., Japelj, J., Kann, D. A., Kouveliotou, C., Rossi, A., Tanvir, N. R., Thoene, C. C., Xu, D.
Publikováno v:
A&A 690, A35 (2024)
Gamma-ray bursts are the most energetic known explosions. Despite fading rapidly, they allow to measure redshift and important properties of their host-galaxies. We report the photometric and spectroscopic study of GRB 160203A and its host-galaxy. Fi
Externí odkaz:
http://arxiv.org/abs/2406.18754
Autor:
Postigo, A. de Ugarte, Michalowski, M., Thoene, C. C., Martin, S., Ashok, A., Fernandez, J. F. Agui, Bremer, M., Misra, K., Perley, D. A., Heintz, K. E., Cherukuri, S. V., Dimitrov, W., Geron, T., Ghosh, A., Izzo, L., Kann, D. A., Koprowski, M. P., Lesniewska, A., Leung, J. K., Levan, A., Omar, A., Oszkiewicz, D., Polinska, M., Resmi, L., Schulze, S.
GRBs produced by the collapse of massive stars are usually found near the most prominent star-forming regions of star-forming galaxies. GRB 171205A happened in the outskirts of a spiral galaxy, a peculiar location in an atypical GRB host. In this pap
Externí odkaz:
http://arxiv.org/abs/2406.16726
Autor:
Fernández, J. F. Agüí, Postigo, A. de Ugarte, Thöne, C. C., Kobayashi, S., Rossi, A., Toma, K., Jelínek, M., Kann, D. A., Covino, S., Wiersema, K., Hartmann, D., Jakobsson, P., Martin-Carrillo, A., Melandri, A., De Pasquale, M., Pugliese, G., Savaglio, S., Starling, R. L. C., Štrobl, J., Della Valle, M., de Wet, S., Zafar, T.
Publikováno v:
A&A 690, A216 (2024)
Long gamma ray bursts (GRBs) are produced by the collapse of some very massive stars, which emit ultra-relativistic jets. When the jets collide with the interstellar medium they decelerate and generate the so-called afterglow emission, which has been
Externí odkaz:
http://arxiv.org/abs/2403.02312
Autor:
Kann, D. A., White, N. E., Ghirlanda, G., Oates, S. R., Melandri, A., Jelinek, M., Postigo, A. de Ugarte, Levan, A. J., Martin-Carrillo, A., Paek, G. S. -H., Izzo, L., Blazek, M., Thone, C., Fernandez, J. F. Agui, Salvaterra, R., Tanvir, N. R., Chang, T. -C., O'Brien, P., Rossi, A., Perley, D. A., Im, M., Malesani, D. B., Antonelli, A., Covino, S., Choi, C., D'Avanzo, P., D'Elia, V., Dichiara, S., Fausey, H. M., Fugazza, D., Gomboc, A., Gorski, K. M., Granot, J., Guidorzi, C., Hanlon, L., Hartmann, D. H., Hudec, R., Jun, H. D., Kim, J., Kim, Y., Klose, S., Kluzniak, W., Kobayashi, S., Kouveliotou, C., Lidz, A., Marongiu, M., Martone, R., Meintjes, P., Mundell, C. G., Murphy, D., Nalewajko, K., Park, W. -K., Sz'ecsi, D., Smith, R. J., Stecklum, B., Steele, I. A., Strobl, J., Sung, H. -I, Updike, A., Urata, Y., van der Horst, A. J.
Publikováno v:
A&A 686, A56 (2024)
Gamma-ray bursts (GRBs) are ideal probes of the Universe at high redshift (z > 5), pinpointing the locations of the earliest star-forming galaxies and providing bright backlights that can be used to spectrally fingerprint the intergalactic medium and
Externí odkaz:
http://arxiv.org/abs/2403.00101
Autor:
Belkin, S., Pozanenko, A. S., Minaev, P. Y., Pankov, N. S., Volnova, A. A., Rossi, A., Stratta, G., Benetti, S., Palazzi, E., Moskvitin, A. S., Burhonov, O., Rumyantsev, V. V., Klunko, E. V., Inasaridze, R. Ya., Reva, I. V., Kim, V., Jelinek, M., Kann, D. A., Volvach, A. E., Volvach, L. N., Xu, D., Zhu, Z., Fu, S., Mkrtchyan, A. A.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 4, February 2024, Pages 11507-11520
We present full photometric coverage and spectroscopic data for soft GRB 201015A with a redshift z = 0.426. Our data spans a time range of 85 days following the detection of GRB. These observations revealed an underlying supernova SN 201015A with a m
Externí odkaz:
http://arxiv.org/abs/2401.03579
Autor:
Melo, I. Tosta e, Ducoin, J. -G., Vidadi, Z., Andrade, C., Rupchandani, V., Agayeva, S., Abdelhadi, J., Abe, L., Aguerre-Chariol, O., Aivazyan, V., Alishov, S., Antier, S., Bai, J. -M., Baransky, A., Bednarz, S., Bendjoya, Ph., Benkhaldoun, Z., Beradze, S., Bizouard, M. A., Bhardwaj, U., Blazek, M., Boër, M., Broens, E., Burkhonov, O., Christensen, N., Cooke, J., Corradi, W., Coughlin, M. W., Culino, T., Daigne, F., Dornic, D., Duverne, P. -A., Ehgamberdiev, S., Eymar, L., Fouad, A., Freeberg, M., Gendre, B., Guo, F., Gokuldass, P., Guessoum, N., Gurbanov, E., Hainich, R., Hasanov, E., Hello, P., Inasaridze, R., Iskandar, A., Ismailov, N., Janati, A., Laz, T. Jegou du, Kann, D. A., Karpov, S., Kiendrebeogo, R. W., Klotz, A., Kneip, R., Kochiashvili, N., Kaeouach, A., Kruiswijk, K., Lamoureux, M., Leroy, N., Lin, W. L., Mao, J., Marchais, D., Mašek, M., Midavaine, T., Moller, A., Morris, D., Natsvlishvili, R., Navarete, F., Guelbenzu, A Nicuesa, Noonan, K., Noysena, K., Oksanen, A., Orange, N. B., Pellouin, C., Peloton, J., Peng, H. W., Pilloix, M., Popowicz, A., Pradier, T., Pyshna, O., Raaijmakers, G., Rajabov, Y., Rau, A., Rinner, C., Rivet, J. -P., Ryh, A. S., Sabil, M., Sadibekova, T., Sasaki, N., Serrau, M., Simon, A., Shokry, A., Smith, K., Sokoliuk, O., Song, X., Takey, A., Thierry, P., Tillayev, Y., Turpin, D., Postigo, A. de Ugarte, Vasylenko, V., Vernet, D., Wang, L., Vachier, F., Vignes, J. P., Wang, X. F., Zeng, X., Zhang, J., Zhu, Y.
We present a campaign designed to train the GRANDMA network and its infrastructure to follow up on transient alerts and detect their early afterglows. In preparation for O4 II campaign, we focused on GRB alerts as they are expected to be an electroma
Externí odkaz:
http://arxiv.org/abs/2310.17287
Autor:
Fausey, H. M., van der Horst, A. J., White, N. E., Seiffert, M., Willems, P., Young, E. T., Kann, D. A., Ghirlanda, G., Salvaterra, R., Tanvir, N. R., Levan, A., Moss, M., Chang, T-C., Fruchter, A., Guiriec, S., Hartmann, D. H., Kouveliotou, C., Granot, J., Lidz, A.
Future detection of high-redshift gamma-ray bursts (GRBs) will be an important tool for studying the early Universe. Fast and accurate redshift estimation for detected GRBs is key for encouraging rapid follow-up observations by ground- and space-base
Externí odkaz:
http://arxiv.org/abs/2310.03093