Zobrazeno 1 - 10
of 965
pro vyhledávání: '"van der Horst, A J"'
Autor:
Anderson, G. E., Schroeder, G., van der Horst, A. J., Rhodes, L., Rowlinson, A., Bahramian, A., Chastain, S. I., Gompertz, B. P., Hancock, P. J., Laskar, T., Leung, J. K., Wijers, R. A. M. J.
We present the radio afterglow of short gamma-ray burst (GRB) 230217A, which was detected less than 1 day after the gamma-ray prompt emission with the Australia Telescope Compact Array (ATCA) and the Karl G. Jansky Very Large Array (VLA). The ATCA ra
Externí odkaz:
http://arxiv.org/abs/2409.07686
Autor:
Rhodes, L., van der Horst, A. J., Bright, J. S., Leung, J. K., Anderson, G. E., Fender, R., Fernandez, J. F. Agüí, Bremer, M., Chandra, P., Dobie, D., Farah, W., Giarratana, S., Gourdji, K., Green, D. A., Lenc, E., Michałowski, M. J., Murphy, T., Nayana, A. J., Pollak, A. W., Rowlinson, A., Schussler, F., Siemion, A., Starling, R. L. C., Scott, P., Thöne, C. C., Titterington, D., Postigo, A. de Ugarte
We present radio observations of the long-duration gamma-ray burst (GRB) 221009A which has become known to the community as the Brightest Of All Time or the BOAT. Our observations span the first 475 days post-burst and three orders of magnitude in ob
Externí odkaz:
http://arxiv.org/abs/2408.16637
Autor:
Chastain, S. I., van der Horst, A. J., Anderson, G. E., Rhodes, L., d'Antonio, D., Bell, M. E., Fender, R. P., Hancock, P. J., Horesh, A., Kouveliotou, C., Mooley, K. P., Rowlinson, A., Vergani, S. D., Wijers, R. A. M. J., Woudt, P. A.
Short gamma-ray bursts (GRBs) are explosive transients caused by binary mergers of compact objects containing at least one neutron star. Multi-wavelength afterglow observations provide constraints on the physical parameters of the jet, its surroundin
Externí odkaz:
http://arxiv.org/abs/2407.11883
Autor:
Fausey, H. M., Vejlgaard, S., van der Horst, A. J., Heintz, K. E., Izzo, L., Malesani, D. B., Wiersema, K., Fynbo, J. P. U., Tanvir, N. R., Vergani, S. D., Saccardi, A., Rossi, A., Campana, S., Covino, S., D'Elia, V., De Pasquale, M., Hartmann, D., Jakobsson, P., Kouveliotou, C., Levan, A., Martin-Carrillo, A., Melandri, A., Palmerio, J., Pugliese, G., Salvaterra, R.
The Epoch of Reionization (EoR) is a key period of cosmological history in which the intergalactic medium (IGM) underwent a major phase change from being neutral to almost completely ionized. Gamma-ray bursts (GRBs) are luminous and unique probes of
Externí odkaz:
http://arxiv.org/abs/2403.13126
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:
Rowlinson, A., de Ruiter, I., Starling, R. L. C., Rajwade, K. M., Hennessy, A., Wijers, R. A. M. J., Anderson, G. E., Mevius, M., Ruhe, D., Gourdji, K., van der Horst, A. J., ter Veen, S., Wiersema, K.
In this paper, we present rapid follow-up observations of the short GRB 201006A, consistent with being a compact binary merger, using the LOw Frequency ARray (LOFAR). We have detected a candidate 5.6$\sigma$, short, coherent radio flash at 144 MHz at
Externí odkaz:
http://arxiv.org/abs/2312.04237
Autor:
Shuvo, Onic I., Johnson, Megan C., Secrest, Nathan J., Gliozzi, Mario, Cigan, Phillip J., Fischer, Travis C., Van Der Horst, Alexander J.
We present results from the Very Long Baseline Array (VLBA) multi-frequency (1.6, 4.4, 8.6, 22 GHz), high-sensitivity (~25 microJy beam^-1), sub-parsec scale (<1 pc) observations and Spectral Energy Distributions (SEDs) for a sample of 12 local activ
Externí odkaz:
http://arxiv.org/abs/2312.04452
Autor:
Giarratana, S., Salafia, O. S., Giroletti, M., Ghirlanda, G., Rhodes, L., Atri, P., Marcote, B., Yang, J., An, T., Anderson, G., Bright, J. S., Farah, W., Fender, R., Leung, J. K., Motta, S. E., Pérez-Torres, M., van der Horst, A. J.
We observed $\gamma$-ray burst (GRB) 221009A using very long baseline interferomety (VLBI) with the European VLBI Network (EVN) and the Very Long Baseline Array (VLBA), over a period spanning from 40 to 262 days after the initial GRB. The high angula
Externí odkaz:
http://arxiv.org/abs/2311.05527
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
Autor:
Chastain, S. I., van der Horst, A. J., Rowlinson, A., Rhodes, L., Andersson, A., Diretse, R., Fender, R. P., Woudt, P. A.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2023;, stad2714
A new generation of radio telescopes with excellent sensitivity, instantaneous {\it uv} coverage, and large fields of view, are providing unprecedented opportunities for performing commensal transient searches. Here we present such a commensal search
Externí odkaz:
http://arxiv.org/abs/2309.08004