GRB 221009A: the B.O.A.T Burst that Shines in Gamma Rays

Autor: Axelsson, M., Ajello, M., Arimoto, M., Baldini, L., Ballet, J., Baring, M. G., Bartolini, C., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bonino, R., Bruel, P., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Cheung, C. C., Chiaro, G., Cibrario, N., Ciprini, S., Cozzolongo, G., Orestano, P. Cristarella, Crnogorcevic, M., Cuoco, A., Cutini, S., D'Ammando, F., De Gaetano, S., Di Lalla, N., Dinesh, A., Di Tria, R., Di Venere, L., Domínguez, A., Fegan, S. J., Ferrara, E. C., Fiori, A., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Galanti, G., Gargano, F., Gasbarra, C., Germani, S., Giacchino, F., Giglietto, N., Giliberti, M., Gill, R., Giordano, F., Giroletti, M., Granot, J., Green, D., Grenier, I. A., Guiriec, S., Gustafsson, M., Hashizume, M., Hays, E., Hewitt, J. W., Horan, D., Kayanoki, T., Kuss, M., Laviron, A., Li, J., Liodakis, I., Longo, F., Loparco, F., Lorusso, L., Lott, B., Lovellette, M. N., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martí-Devesa, G., Martinelli, R., Castellanos, I. Martinez, Mazziotta, M. N., McEnery, J. E., Mereu, I., Meyer, M., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monti-Guarnieri, P., Monzani, M. E., Morishita, T., Morselli, A., Moskalenko, I. V., Negro, M., Niwa, R., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Panzarini, G., Persic, M., Pesce-Rollins, M., Petrosian, V., Pillera, R., Piron, F., Porter, T. A., Principe, G., Racusin, J. L., Rainò, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ryde, F., Sánchez-Conde, M., Parkinson, P. M. Saz, Serini, D., Sgrò, C., Sharma, V., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Tak, D., Thayer, J. B., Torres, D. F., Valverde, J., Zaharijas, G., Lesage, S., Briggs, M. S., Burns, E., Bala, S., Bhat, P. N., Cleveland, W. H., Dalessi, S., de Barra, C., Gibby, M., Giles, M. M., Hamburg, R., Hristov, B. A., Hui, C. M., Kocevski, D., Mailyan, B., Malacaria, C., McBreen, S., Poolakkil, S., Roberts, O. J., Scotton, L., Veres, P., von Kienlin, A., Wilson-Hodge, C. A., Wood, J.

We present a complete analysis of Fermi Large Area Telescope (LAT) data of GRB 221009A, the brightest Gamma-Ray Burst (GRB) ever detected. The burst emission above 30 MeV detected by the LAT preceded by 1 s the low-energy (< 10 MeV) pulse that trigge

Externí odkaz: http://arxiv.org/abs/2409.04580

PKS~J0805$-$0111: A Second Owens Valley Radio Observatory Blazar Showing Highly Significant Sinusoidal Radio Variability -- The Tip of the Iceberg

Autor: de la Parra, P. V., Kiehlmann, S., Mroz, P., Readhead, A. C. S., Synani, A., Begelman, M. C., Blandford, R. D., Ding, Y., Harrison, F., Liodakis, I., Max-Moerbeck, W., Pavlidou, V., Reeves, R., Vallisneri, M., Aller, M. F., Graham, M. J., Hovatta, T., Lawrence, C. R., Lazio, T. J. W., Mahabal, A. A., Molina, B., O'Neill, S., Pearson, T. J., Ravi, V., Tassis, K., Zensus, J. A.

Owens Valley Radio Observatory (OVRO) observations of supermassive black hole binary (SMBHB) candidate PKS~2131$-$021 revealed, for the first time, six likely characteristics of the phenomenology exhibited by SMBHB in blazars, of which the most unexp

Externí odkaz: http://arxiv.org/abs/2408.02645

Home-based intervention to test and start (HITS) protocol: a cluster-randomized controlled trial to reduce HIV-related mortality in men and HIV incidence in women through increased coverage of HIV treatment

Autor: T. Mathenjwa, H.-Y. Kim, T. Zuma, M. Shahmanesh, J. Seeley, P. Matthews, S. Wyke, N. McGrath, B. Sartorius, H. M. Yapa, O. Adeagbo, A. Blandford, A. Dobra, T. Bäernighausen, F. Tanser

Publikováno v: BMC Public Health, Vol 19, Iss 1, Pp 1-10 (2019)

Abstract Background To realize the full benefits of treatment as prevention in many hyperendemic African contexts, there is an urgent need to increase uptake of HIV testing and HIV treatment among men to reduce the rate of HIV transmission to (partic

Externí odkaz: https://doaj.org/article/fe06f18e92f4497a91778eec680014e5

A Hierarchical Framework for explaining the Cosmic Ray Spectrum using Diffusive Shock Acceleration

Autor: Blandford, Roger, Simeon, Paul, Globus, Noémie, Mukhopadhyay, Payel, Peretti, Enrico, Barrow, Kirk S. S.

The hypothesis that the entire cosmic ray spectrum, from $\lesssim1\,{\rm GeV}$ to $\gtrsim100\,{\rm EeV}$ energy, can be accounted for by diffusive shock acceleration on increasingly large scales is critically examined. Specifically, it is conjectur

Externí odkaz: http://arxiv.org/abs/2309.09116

Implementation of national policies and interventions (WHO Best Buys) for non-communicable disease prevention and control in Ghana: a mixed methods analysis

Autor: Leonard Baatiema, Olutobi Adekunle Sanuade, Irene Akwo Kretchy, Lydia Okoibhole, Sandra Boatemaa Kushitor, Hassan Haghparast-Bidgoli, Raphael Baffour Awuah, Samuel Amon, Sedzro Kojo Mensah, Carlos S. Grijalva-Eternod, Kafui Adjaye-Gbewonyo, Publa Antwi, Hannah Maria Jennings, Daniel Kojo Arhinful, Moses Aikins, Kwadwo Koram, Ann Blandford, Edward Fottrell

Publikováno v: Health Research Policy and Systems, Vol 22, Iss 1, Pp 1-14 (2024)

Abstract Background The World Health Organization (WHO) encourages all member states to adopt and implement a package of essential evidence-based interventions called the Best Buys to reduce the burden of non-communicable diseases (NCDs). To date, li

Externí odkaz: https://doaj.org/article/97ba42a8c58c47bbb62039735f4a7307