Long-lived vectors from electromagnetic cascades at SHiP

Autor: Zhou, Tao, Plestid, Ryan, Kelly, Kevin J., Blinov, Nikita, Fox, Patrick J.

We simulate dark-vector, $V$, production from electromagnetic cascades at the recently approved SHiP experiment. The cascades (initiated by photons from $\pi^0\rightarrow \gamma \gamma$) can lead to 3-4 orders of magnitude increase of the event rate

Externí odkaz: http://arxiv.org/abs/2412.01880

Four years of wide-field search for nanosecond optical transients with the TAIGA-HiSCORE Cherenkov array

Autor: Panov, A. D., Astapov, I. I., Beskin, G. M., Bezyazykov, P. A., Blinov, A. V., Bonvech, E. A., Borodin, A. N., Budnev, N. M., Bulan, A. V., Chernov, P. Busygina D. V., Chiavassa, A., Dyachok, A. N., Gafarov, A. R., Garmash, A. Yu., Grebenyuk, V. M., Gress, E. O., Gress, O. A., Gress, T. I., Grinyuk, A. A., Grishin, O. G., Ivanova, A. L., Ivanova, A. D., Ilyushin, M. A., Kalmykov, N. N., Kindin, V. V., Kiryuhin, S. N., Kokoulin, R. P., Kompaniets, K. G., Korosteleva, E. E., Kozhin, V. A., Kravchenko, E. A., Kuzmichev, L. A., Kryukov, A. P., Lagutin, A. A., Lavrova, M. V., Lemeshev, Yu., Lubsandorzhiev, B. K., Lubsandorzhiev, N. B., Lukanov, A. D., Malakhov, S. D., Mirgazov, R. R., Monkhoev, R. D., Okyneva, E. A., Osipova, E. A., Pakhorukov, A. L., Pan, A., Pankov, L. V., Petrukhin, A. A., Podgrudkov, D. A., Poddubny, I. A., Popova, E. G., Postnikov, E. B., Prosin, V. V., Pushnin, A. A., Raikin, R. I., Razumov, A. Yu., Rjabov, E., Rubtsov, G. I., Samoliga, V. S., Shaikovsky, A. V., Sidorenkov, A. Yu., Silaev, A. A., Skurikhin, A. V., Satyshev, I., Sokolov, A. V., Sveshnikova, L. G., Tabolenko, V. A., Tanaev, A. B., Ternovoy, M., Tkachev, L. G., Ushakov, N., Volchugov, P. A., Volkov, N. V., Voronin, D. M., Yashin, I. I., Zagorodnikov, A. V., Zhurov, D. P., Zirakashvili, V. N.

It has been previously demonstrated [Panov et al. Physics of Atomic Nuclei 84(2021)1037] that the TAIGA-HiSCORE Cherenkov array, originally built for cosmic ray physics and ultrahigh-energy gamma-ray astronomy studies using the extensive air shower m

Externí odkaz: http://arxiv.org/abs/2412.00159

A Two-Week $IXPE$ Monitoring Campaign on Mrk 421

Autor: Maksym, W. Peter, Liodakis, Ioannis, Saade, M. Lynne, Kim, Dawoon E., Middei, Riccardo, Di Gesu, Laura, Kiehlmann, Sebastian, Matzeu, Gabriele, Agudo, Iván, Marscher, Alan P., Ehlert, Steven R., Jorstad, Svetlana G., Kaaret, Philip, Marshall, Herman L., Pacciani, Luigi, Perri, Matteo, Puccetti, Simonetta, Kouch, Pouya M., Lindfors, Elina, Aceituno, Francisco José, Bonnoli, Giacomo, Casanova, Víctor, Escudero, Juan, Agís-González, Beatriz, Husillos, César, Morcuende, Daniel, Otero-Santos, Jorge, Sota, Alfredo, Piirola, Vilppu, Imazawa, Ryo, Sasada, Mahito, Fukazawa, Yasushi, Kawabata, Koji S., Uemura, Makoto, Mizuno, Tsunefumi, Nakaoka, Tatsuya, Akitaya, Hiroshi, McCall, Callum, Jermak, Helen E., Steele, Iain A., Borman, George A., Grishina, Tatiana S., Hagen-Thorn, Vladimir A., Kopatskaya, Evgenia N., Larionova, Elena G., Morozova, Daria A., Savchenko, Sergey S., Shishkina, Ekaterina V., Troitskiy, Ivan S., Troitskaya, Yulia V., Vasilyev, Andrey A., Zhovtan, Alexey V., Myserlis, Ioannis, Gurwell, Mark, Keating, Garrett, Rao, Ramprasad, Pauley, Colt, Angelakis, Emmanouil, Kraus, Alexander, Berdyugin, Andrei V., Kagitani, Masato, Kravtsov, Vadim, Poutanen, Juri, Sakanoi, Takeshi, Kang, Sincheol, Lee, Sang-Sung, Kim, Sang-Hyun, Cheong, Whee Yeon, Jeong, Hyeon-Woo, Song, Chanwoo, Blinov, Dmitry, Shablovinskaya, Elena, Antonelli, Lucio Angelo, Bachetti, Matteo, Baldini, Luca, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bianchi, Stefano, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Bucciantini, Niccoló, Capitanio, Fiamma, Castellano, Simone, Cavazzuti, Elisabetta, Chen, Chien-Ting, Ciprini, Stefano, Costa, Enrico, De Rosa, Alessandra, Del Monte, Ettore, Di Lalla, Niccoló, Di Marco, Alessandro, Donnarumma, Immacolata, Doroshenko, Victor, Dovčiak, Michal, Enoto, Teruaki, Evangelista, Yuri, Fabiani, Sergio, Ferrazzoli, Riccardo, Garcia, Javier A., Gunji, Shuichi, Hayashida, Kiyoshi, Heyl, Jeremy, Iwakiri, Wataru, Karas, Vladimir, Kislat, Fabian, Kitaguchi, Takao, Kolodziejczak, Jeffery J., Krawczynski, Henric, La Monaca, Fabio, Latronico, Luca, Maldera, Simone, Manfreda, Alberto, Marin, Frédéric, Marinucci, Andrea, Massaro, Francesco, Matt, Giorgio, Mitsuishi, Ikuyuki, Muleri, Fabio, Negro, Michela, Ng, C. -Y., O'Dell, Stephen L., Omodei, Nicola, Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel Lawrence, Pesce-Rollins, Melissa, Petrucci, Pierre-Olivier, Pilia, Maura, Possenti, Andrea, Ramsey, Brian D., Rankin, John, Ratheesh, Ajay, Roberts, Oliver J., Romani, Roger W., Sgró, Carmelo, Slane, Patrick, Soffitta, Paolo, Spandre, Gloria, Swartz, Douglas A., Tamagawa, Toru, Tavecchio, Fabrizio, Taverna, Roberto, Tawara, Yuzuru, Tennant, Allyn F., Thomas, Nicholas E., Tombesi, Francesco, Trois, Alessio, Tsygankov, Sergey S., Turolla, Roberto, Vink, Jacco, Weisskopf, Martin C., Wu, Kinwah, Xie, Fei, Zane, Silvia

X-ray polarization is a unique new probe of the particle acceleration in astrophysical jets made possible through the Imaging X-ray Polarimetry Explorer. Here we report on the first dense X-ray polarization monitoring campaign on the blazar Mrk 421.

Externí odkaz: http://arxiv.org/abs/2410.19983

SMILE: Discriminating milli-lens systems in a pilot project

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

The Method of Searching for Rotations of the Polarization Position Angle of Quasars

Autor: Savchenko, S. S., Morozova, D. A., Jorstad, S. G., Blinov, D. A., Borman, G. A., Vasilyev, A. A., Grishina, T. S., Zhovtan, A. V., Kopatskaya, E. N., Larionova, E. G., Troitskiy, I. S., Troitskaya, Yu. V., Shishkina, E. V., Shkodkina, E. A.

Publikováno v: Astrophysical Bulletin, Volume 79, Issue 2, pp. 186-202, 2024

Observations of quasars show that the polarization position angle of the emission coming from them varies greatly over time, including periods called rotations during which the angle changes in an orderly manner. The study proposes a method for ident

Externí odkaz: http://arxiv.org/abs/2409.08674