Zobrazeno 1 - 10
of 2 577
pro vyhledávání: '"READHEAD, A."'
Autor:
MAGIC Collaboration, Abe, H., Abe, S., Acciari, V. A., Agudo, I., Aniello, T., Ansoldi, S., Antonelli, L. A., Engels, A. Arbet, Arcaro, C., Artero, M., Asano, K., Baack, D., Babić, A., Baquero, A., de Almeida, U. Barres, Batković, I., Baxter, J., Bernardini, E., Bernardos, M., Bernete, J., Berti, A., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Bošnjak, Ž., Burelli, I., Busetto, G., Campoy-Ordaz, A., Carosi, A., Carosi, R., Carretero-Castrillo, M., Castro-Tirado, A. J., Chai, Y., Cifuentes, A., Cikota, S., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., D'Amico, G., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Del Popolo, A., Delfino, M., Delgado, J., Mendez, C. Delgado, Depaoli, D., Di Pierro, F., Di Venere, L., Prester, D. Dominis, Donini, A., Dorner, D., Doro, M., Elsaesser, D., Emery, G., Escudero, J., Fariña, L., Fattorini, A., Foffano, L., Font, L., Fukami, S., Fukazawa, Y., López, R. J. García, Gasparyan, S., Gaug, M., Paiva, J. G. Giesbrecht, Giglietto, N., Giordano, F., Gliwny, P., Grau, R., Green, J. G., Hadasch, D., Hahn, A., Heckmann, L., Herrera, J., Hrupec, D., Hütten, M., Imazawa, R., Inada, T., Iotov, R., Ishio, K., Martínez, I. Jiménez, Jormanainen, J., Kerszberg, D., Kluge, G. W., Kobayashi, Y., Kubo, H., Kushida, J., Lezáun, M. Láinez, Lamastra, A., Leone, F., Lindfors, E., Linhoff, L., Lombardi, S., Longo, F., López-Moya, M., López-Oramas, A., Loporchio, S., Lorini, A., Fraga, B. Machado de Oliveira, Majumdar, P., Makariev, M., Maneva, G., Mang, N., Manganaro, M., Mangano, S., Mannheim, K., Mariotti, M., Martínez, M., Mas-Aguilar, A., Mazin, D., Menchiari, S., Mender, S., Mićanović, S., Miceli, D., Miranda, J. M., Mirzoyan, R., Molina, E., Mondal, H. A., Morcuende, D., Nanci, C., Neustroev, V., Nigro, C., Nishijima, K., Ekoume, T. Njoh, Noda, K., Nozaki, S., Ohtani, Y., Otero-Santos, J., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Pavletić, L., Persic, M., Pihet, M., Pirola, G., Podobnik, F., Moroni, P. G. Prada, Prandini, E., Principe, G., Priyadarshi, C., Rhode, W., Ribó, M., Rico, J., Righi, C., Sahakyan, N., Saito, T., Satalecka, K., Saturni, F. G., Schleicher, B., Schmidt, K., Schmuckermaier, F., Schubert, J. L., Schweizer, T., Sitarek, J., Spolon, A., Stamerra, A., Strišković, J., Strom, D., Suda, Y., Surić, T., Suutarinen, S., Tajima, H., Takahashi, M., Takeishi, R., Tavecchio, F., Temnikov, P., Terzić, T., Teshima, M., Tosti, L., Truzzi, S., Ubach, S., van Scherpenberg, J., Ventura, S., Verguilov, V., Viale, I., Vigorito, C. F., Vitale, V., Walter, R., Yamamoto, T., Collaborators, Benkhali, F. Ait, Becherini, Y., Bi, B., Böttcher, M., Bolmont, J., Brown, A., Bulik, T., Casanova, S., Chand, T., Chandra, S., Chibueze, J., Chibueze, O., Egberts, K., Einecke, S., Ernenwein, J. -P., Fontaine, G., Gabici, S., Goswami, P., Holler, M., Jamrozy, M., Joshi, V., Kasai, E., Katarzyński, K., Khatoon, R., Khélifi, B., Kluzniak, W., Kosack, K., Stum, S. Le, Lemière, A., Marx, R., Moderski, R., Moghadam, M. O., de Naurois, M., Niemiec, J., O'Brien, P., Ostrowski, M., Peron, G., Pita, S., Pühlhofer, G., Quirrenbach, A., Rudak, B., Sahakian, V., Sanchez, D. A., Santangelo, A., Sasaki, M., Schutte, H. M., Seglar-Arroyo, M., Shapopi, J. N. S., Steenkamp, R., Steppa, C., Suzuki, H., Tanaka, T., Tluczykont, M., Venter, C., Wagner, S. J., Wierzcholska, A., Zdziarski, A. A., Żywucka, N., Collaboration, Fermi-LAT, González, J. Becerra, Ciprini, S., Venters, T. M., collaborators, MWL, D'Ammando, F., Esteban-Gutiérrez, A., Ramazani, V. Fallah, Filippenko, A. V., Hovatta, T., Jermak, H., Jorstad, S., Kiehlmann, S., Lähteenmäki, A., Larionov, V. M., Larionova, E., Marscher, A. P., Morozova, D., Max-Moerbeck, W., Readhead, A. C. S., Reeves, R., Steele, I. A., Tornikoski, M., Verrecchia, F., Xiao, H., Zheng, W.
OT 081 is a well-known, luminous blazar that is remarkably variable in many energy bands. We present the first broadband study of the source which includes very-high-energy (VHE, $E>$100\,GeV) $\gamma$-ray data taken by the MAGIC and H.E.S.S. imaging
Externí odkaz:
http://arxiv.org/abs/2410.22557
Autor:
Raiteri, C. M., Villata, M., Carnerero, M. I., Kurtanidze, S. O., Mirzaqulov, D. O., Benítez, E., Bonnoli, G., Carosati, D., Acosta-Pulido, J. A., Agudo, I., Andreeva, T. S., Apolonio, G., Bachev, R., Borman, G. A., Bozhilov, V., Brown, L. F., Carbonell, W., Casadio, C., Chen, W. P., Damljanovic, G., Ehgamberdiev, S. A., Elsaesser, D., Escudero, J., Feige, M., Fuentes, A., Gabellini, D., Gazeas, K., Giroletti, M., Grishina, T. S., Gupta, A. C., Gurwell, M. A., Hagen-Thorn, V. A., Hamed, G. M., Hiriart, D., Hodges, M., ivanidze, R. Z., Ivanov, D. V., Joner, M. D., Jorstad, S. G., Jovanovic, M. D., Kiehlmann, S., Kimeridze, G. N., Kopatskaya, E. N., Kovalev, Yu. A., Kovalev, Y. Y., Kurtanidze, O. M., Kurtenkov, A., Larionova, E. G., Lessing, A., Lin, H. C., López, J. M., Lorey, C., Ludwig, J., Marchili, N., Marchini, A., Marscher, A. P., Matsumoto, K., Max-Moerbeck, W., Mihov, B., Minev, M., Mingaliev, M. G., Modaressi, A., Morozova, D. A., Mortari, F., Mufakharov, T. V., Myserlis, I., Nikolashvili, M. G., Pearson, T. J., Popkov, A. V., Rahimov, I. A., Readhead, A. C. S., Reinhart, D., Reeves, R., Righini, S., Romanov, F. D., Savchenko, S. S., Semkov, E., Shishkina, E. V., Sigua, L. A., Slavcheva-Mihova, L., Sotnikova, Yu. V., Steineke, R., Stojanovic, M., Strigachev, A., Takey, A., Traianou, E., Troitskaya, Yu. V., Troitskiy, I. S., Tsai, A. L., Valcheva, A., Vasilyev, A. A., Verna, G., Vince, O., Vrontaki, K., Weaver, Z. R., Webb, J., Yuldoshev, Q. X., Zaharieva, E., Zhovtan, A. V.
Blazars are beamed active galactic nuclei known for their strong multi-wavelength variability on timescales from years down to minutes. We aim to investigate the suitability of the twisting jet model presented in previous works to explain the multi-w
Externí odkaz:
http://arxiv.org/abs/2410.22319
Autor:
Pötzl, F. M., Casadio, C., Kalaitzidakis, G., Álvarez-Ortega, D., Kumar, A., Missaglia, V., Blinov, D., Janssen, M., Loudas, N., Pavlidou, V., Readhead, A. C. S., Tassis, K., Wilkinson, P. N., Zensus, J. A.
Dark Matter (DM) remains poorly probed on critical, sub-galactic scales, where predictions from different models diverge in terms of abundance and density profiles of halos. Gravitational lens systems on milli-arcsecond scales (milli-lenses) are expe
Externí odkaz:
http://arxiv.org/abs/2409.15229
Autor:
de la Parra, P. V., Readhead, A. C. S, Herbig, T., Kiehlmann, S., Lister, M. L., Pavlidou, V., Reeves, R. A., Siemiginowska, A., Sullivan, A. G., Surti, T., Synani, A., Tassis, K., Taylor, G. B., Wilkinson, P. N., Aller, M. F., Blandford, R. D., Globus, N., Lawrence, C. R., Molina, B., O'Neill, S., Pearson, T. J.
This paper addresses, for the first time, a key aspect of the phenomenology of Compact Symmetric Objects (CSOs) -- the characteristics of their radio spectra. We present a radio-spectrum description of a complete sample of high luminosity CSOs (CSO-2
Externí odkaz:
http://arxiv.org/abs/2408.13077
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$-$021 revealed, for the first time, six likely characteristics of the phenomenology exhibited by SMBHB in blazars, of which the most unexp
Externí odkaz:
http://arxiv.org/abs/2408.02645
Autor:
Kiehlmann, Sebastian, De La Parra, Philipe Vergara, Sullivan, Andrew, Synani, A., Liodakis, Ioannis, Readhead, Anthony, Graham, Matthew, Begelman, Mitchell, Blandford, Roger, Chatziioannou, Katerina, Ding, Yuanze, Harrison, Fiona, Homan, D., Hovatta, Talvikki, Kulkarni, Shrinivas, Lister, Matthew, Maiolino, Roberto, Max-Moerbeck, Walter, Molina, B., Mroz, Przemyslaw, O'Dea, Christopher, Pavlidou, Vasiliki, Pearson, Timothy J., Aller, Margo, Lawrence, C., Lazio, T. Joseph, O'Neill, S., Prince, Thomas, Ravi, Vikram, Reeves, Rodrigo, Tassis, Konstantinos, Vallisneri, Michele, Zensus, J.
Haystack and Owens Valley Radio Observatory (OVRO) observations recently revealed strong sinusoidal total flux density variations that maintained coherence between 1975 and 2021 in the blazar PKS 2131-021 ($z=1.283)$. This was interpreted as possible
Externí odkaz:
http://arxiv.org/abs/2407.09647
Autor:
Kouch, Pouya M., Lindfors, Elina, Hovatta, Talvikki, Liodakis, Ioannis, Koljonen, Karri I. I., Nilsson, Kari, Kiehlmann, Sebastian, Max-Moerbeck, Walter, Readhead, Anthony C. S., Reeves, Rodrigo A., Pearson, Timothy J., Jormanainen, Jenni, Ramazani, Vandad Fallah, Graham, Matthew J.
Publikováno v:
A&A 690, A111 (2024)
The origin of high-energy (HE) astrophysical neutrinos has remained an elusive hot topic in the field of HE astrophysics for the past decade. Apart from a handful of individual associations, the vast majority of HE neutrinos arise from unknown source
Externí odkaz:
http://arxiv.org/abs/2407.07153
Autor:
Maharana, Siddharth, Ramaprakash, A. N., Rajarshi, Chaitanya, Khodade, Pravin, Joshi, Bhushan, Chordia, Pravin, Kohok, Abhay, Anche, Ramya M., Modi, Deepa, Kypriotakis, John A., Deokar, Amit, Kinjawadekar, Aditya, Potter, Stephen B., Blinov, Dmitry, Eriksen, Hans Kristian, Falalaki, Myrto, Gajjar, Hitesh, Ghosh, Tuhin, Gjerløw, Eirik, Kiehlmann, Sebastain, Liodakis, Ioannis, Mandarakas, Nikolaos, Panopoulou, Georgia V., Pavlidou, Vasiliki, Pearson, Timothy J., Pelgrims, Vincent, Readhead, Anthony C. S., Skalidis, Raphael, Tassis, Konstantinos, Uppal, Namita, Wehus, Ingunn K.
Publikováno v:
Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130967P (2024)
Wide-Area Linear Optical Polarimeter (WALOP)-South is the first wide-field and survey-capacity polarimeter in the optical wavelengths. On schedule for commissioning in 2024, it will be mounted on the 1 m SAAO telescope in Sutherland Observatory, Sout
Externí odkaz:
http://arxiv.org/abs/2406.19428
Autor:
Readhead, A. C. S.
Millisecond pulsars, like pulsars, have led to major advances in many areas of astronomy and physics. The discovery in 2023 of a cosmological gravitational wave (GW) stochastic background using millisecond pulsar timing arrays has focused attention o
Externí odkaz:
http://arxiv.org/abs/2406.17164
Autor:
Chung, D. T., Breysse, P. C., Cleary, K. A., Dunne, D. A., Lunde, J. G. S., Padmanabhan, H., Stutzer, N. -O., Tolgay, D., Bond, J. R., Church, S. E., Eriksen, H. K., Gaier, T., Gundersen, J. O., Harper, S. E., Harris, A. I., Hobbs, R., Ihle, H. T., Kim, J., Lamb, J. W., Lawrence, C. R., Murray, N., Pearson, T. J., Philip, L., Readhead, A. C. S., Rennie, T. J., Wehus, I. K., Woody, D. P.
The Carbon monOxide Mapping Array Project (COMAP) Pathfinder survey continues to demonstrate the feasibility of line-intensity mapping using high-redshift carbon monoxide (CO) line emission traced at cosmological scales. The latest COMAP Pathfinder p
Externí odkaz:
http://arxiv.org/abs/2406.07512