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    Wyświetlanie 1-9 z 9
    Tytuł:
    A close binary lens revealed by the microlensing event Gaia20bof
    Autorzy:
    Kruszyńska, K.
    Cassan, A.
    Nakhaharutai, N.
    Buckley, D. A. H.
    Rabus, M.
    Mikołajczyk, P. J.
    Wyrzykowski, Ł.
    Ihanec, N.
    Pylypenko, U.
    Gromadzki, M.
    Wambsganss, J.
    Howil, K.
    Rota, P.
    Rybicki, K. A.
    Jaimes, R. Figuera
    Sitek, M.
    Bozza, V.
    Zieliński, P.
    Hundertmark, M.
    Tsapras, Y.
    Jabłońska, M.
    Awiphan, S.
    Street, R. A.
    Bachelet, E.
    Ratajczak, M.
    Zoła, Stanisław
    Dominik, M.
    Opis:
    During the last 25 yr, hundreds of binary stars and planets have been discovered toward the Galactic bulge by microlensing surveys. Thanks to a new generation of large-sky surveys, it is now possible to regularly detect microlensing events across the entire sky. The OMEGA Key Projet at the Las Cumbres Observatory carries out automated follow-up observations of microlensing events alerted by these surveys with the aim of identifying and characterizing exoplanets as well as stellar remnants. In this study, we present the analysis of the binary lens event Gaia20bof. By automatically requesting additional observations, the OMEGA Key Project obtained dense time coverage of an anomaly near the peak of the event, allowing characterization of the lensing system. The observed anomaly in the lightcurve is due to a binary lens. However, several models can explain the observations. Spectroscopic observations indicate that the source is located at ≤2.0 kpc, in agreement with the parallax measurements from Gaia. While the models are currently degenerate, future observations, especially the Gaia astrometric time series as well as high-resolution imaging, will provide extra constraints to distinguish between them.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    AT2021uey : a planetary microlensing event outside the Galactic bulge
    Autorzy:
    Rybicki, K. A.
    Kulijanishvili, V.
    Kvernadze, T.
    Narita, N.
    Ilyin, I.
    Wambsganss, J.
    Hundertmark, M.
    Bozza, V.
    Logie, L.
    Paks̆tienė, E.
    Mikołajczyk, P. J.
    Wyrzykowski, Ł.
    Zoła, Stanisław
    Voloshyn, P.
    Carrasco, J. M.
    Zdanavic̆ius, J.
    Bruni, I.
    Tsapras, Y.
    Żejmo, M.
    Peloton, J.
    Cassan, A.
    Figuera Jaimes, R.
    Adomavic̆ienė, R.
    Maskoliūnas, M.
    Dubois, F.
    Cusano, F.
    Dennefeld, M.
    Mróz, P.
    Burgaz, U.
    Rau, S.
    Brincat, S. M.
    Dominik, M.
    Fukui, A.
    Street, R. A.
    Zieliński, P.
    Kruszyńska, K.
    Vanaverbeke, S.
    Bachelet, E.
    Rota, P.
    Qvam, J. K. T.
    Garofalo, A.
    Ban, M.
    C̆epas, V.
    Poleski, R.
    Galdies, C.
    Opis:
    We report the analysis of a planetary microlensing event AT2021uey. The event was observed outside the Galactic bulge and alerted both space-(Gaia) and ground-based (ZTF and ASAS-SN) surveys. From the observed data, we find that the lens system is located at a distance of ∼1 kpc and comprises an M-dwarf host star of about half a solar mass, orbited by a Jupiter-like planet beyond the snowline. The source star could be a metal-poor giant located in the halo according to the spectral analyses and modelling. Hence, AT2021uey is a unique example of the binary-lens event outside the bulge that is offered by a disc-halo lens-source combination.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Gaia22dkvLb : a microlensing planet potentially accessible to radial-velocity characterization
    Autorzy:
    Christie, Grant W.
    Cassan, A.
    Bachelet, Etienne
    Wyrzykowski, L.
    Mikołajczyk, P. J.
    Pylypenko, Uliana
    Kruszyńska, Katarzyna
    Ihanec, N.
    Shangguan, Jinyi
    Gromadzki, M.
    Udalski, Andrzej
    Dong, Subo
    Wambsganss, J.
    Zejmo, Michal
    Liu, Chang
    Mróz, Przemek
    Merc, Jaroslav
    Yi, Tuan
    Andrzejewski, Jan
    Street, Rachel
    Howil, K.
    Hambsch, Franz-Josef
    Rybicki, K. A.
    Rota, P.
    de Almeida, L.
    Woillez, J.
    Sitek, M.
    Potter, Stephen
    Monard, L. A. G.
    Bozza, V.
    Mérand, A.
    Lewis, Fraser
    Bronikowski, Mateusz
    Liu, Zhuokai
    Zieliński, P.
    Chen, Huiling
    Hundertmark, M.
    Zhang, Huawei
    Tsapras, Y.
    Huang, Yang
    Michniewicz, Olga
    Wu, Zexuan
    McCormick, J.
    Fukui, Akihiko
    El-Badry, Kareem
    Figuera Jaimes, R.
    Słowikowska, A.
    Gould, Andrew
    Bąkowska, K.
    Ratajczak, M.
    Zoła, Stanisław
    Dominik, M.
    Natusch, Tim
    Opis:
    We report discovering an exoplanet from following up a microlensing event alerted by Gaia. The event Gaia22dkv is toward a disk source rather than the traditional bulge microlensing fields. Our primary analysis yields a Jovian planet with $M_{P}=0.59^{+0.15}_{-0.05}M_{J}$ at a projected orbital separation $r_{\perp} =1.4^{+0.8}_{-0.3}$ u, and the host is a ∼1.1 M$_{\bigodot }$ turnoff star at ∼1.3 kpc. At $r' \approx 14$, the host is far brighter than any previously discovered microlensing planet host, opening up the opportunity to test the microlensing model with radial velocity (RV) observations. RV data can be used to measure the planet's orbital period and eccentricity, and they also enable searching for inner planets of the microlensing cold Jupiter, as expected from the "inner–outer correlation" inferred from Kepler and RV discoveries. Furthermore, we show that Gaia astrometric microlensing will not only allow precise measurements of its angular Einstein radius θ$_{E}$ but also directly measure the microlens parallax vector and unambiguously break a geometric light-curve degeneracy, leading to the definitive characterization of the lens system.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Constraining lens masses in moderately to highly magnified microlensing events from Gaia
    Autorzy:
    Carrasco, J. M.
    Tsapras, Y.
    Rybicki, K. A.
    Pylypenko, U.
    Burgaz, U.
    Gurgul, A.
    Bachelet, E.
    Kvernadze, T.
    Mikołajczyk, P. J.
    Simon, A.
    Cassan, A.
    Joachimczyk, B.
    Popowicz, A.
    Qvam, J. K. T.
    Zieliński, P.
    Wyrzykowski, Ł.
    Awiphan, S.
    Stojanovic, M.
    Kaczmarek, Z.
    Ilyin, I.
    Pakstiene, E.
    Cusano, F.
    Jelinek, M.
    Tasuya, O.
    Wicker, M.
    Jabłońska, M.
    Sonbas, E.
    Garofalo, A.
    Hundertmark, M.
    Figuera Jaimes, R.
    Żejmo, M.
    Kurowski, Sebastian
    Ratajczak, M.
    Zdanavicius, J.
    Esenoglu, H. H.
    Damljanovic, G.
    Wambsganss, J.
    Kruszyńska, K.
    Hofbauer, P.
    Dominik, M.
    Bozza, V.
    Udalski, A.
    Güver, T.
    Galdies, C.
    Kotysz, K.
    Davidson, J. W.
    Godunova, V.
    Bąkowska, K.
    Howil, K.
    Rivet, J. P.
    Rota, P.
    Zoła, Stanisław
    Jovanovic, M. D.
    Brincat, S. M.
    Kvaratskhelia, O.
    Reichart, D. E.
    Street, R. A.
    Ihanec, N.
    Fukui, A.
    Sitek, M.
    Opis:
    Context. Microlensing events provide a unique way to detect and measure the masses of isolated, non-luminous objects, particularly dark stellar remnants. Under certain conditions, it is possible to measure the mass of these objects using photometry alone, specifically when a microlensing light curve displays a finite source (FS) effect. This effect generally occurs in highly magnified light curves, i.e. when the source and the lens are very well aligned. Aims. In this study, we analyse Gaia Alerts and Gaia Data Release 3 datasets, identifying four moderate-to-high-magnification microlensing events without a discernible FS effect. The absence of this effect suggests a large Einstein radius, implying substantial lens masses. Methods. In each event, we constrained the FS effect, and therefore established lower limits for the angular Einstein radius and lens mass. Additionally, we used the DarkLensCode software to obtain the mass, distance, and brightness distribution for the lens based on the Galactic model. Results. Our analysis established lower mass limits of ∼0.7 M$_{⊙}$ for one lens and ∼0.3 − 0.5 M$_{⊙}$ for two others. A DarkLensCode analysis supports these findings, estimating lens masses in the range of ∼0.42 − 1.70 M$_{⊙}$ and dark lens probabilities exceeding 80%. These results strongly indicate that the lenses are stellar remnants, such as white dwarfs or neutron stars. Conclusions. While further investigations are required to confirm the nature of these lenses, we demonstrate a straightforward yet effective approach to identifying stellar remnant candidates.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Full orbital solution for the binary system in the northern Galactic disk microlensing event Gaia16aye
    Autorzy:
    Bachelet, E.
    Gomboc, A.
    Conti, D.
    Figuera Jaimes, R.
    Wyrzykowski, Łukasz
    Dennefeld, M.
    Bonanos, A. Z.
    Wilson, R. W.
    Hudec, R.
    Caton, D. B.
    Lewis, F.
    Ranc, C.
    Stankeviciute, A.
    Hodgkin, S. T.
    Mowlavi, N.
    Tomasella, L.
    Rebassa-Mansergas, A.
    Reichart, D. E.
    Piascik, A.
    Abe, L.
    Zoła, Stanisław
    Bikmaev, I. F.
    Yoldas, A.
    Haislip, J. B.
    Altavilla, G.
    Hallakoun, N.
    Galeev, A. I.
    Chruślińska, M.
    Butterley, T.
    Horne, K.
    Seabroke, G.
    Bakis, V.
    Pawlak, M.
    Zieliński, P.
    Śniegowska, M.
    Dapergolas, A.
    Zieliński, M.
    Anupama, G. C.
    AlMannaei, A.
    Clementini, G.
    Scarpetta, G.
    Bartlett, S.
    Dominik, M.
    Mao, S.
    Zanmar Sanchez, R.
    Latev, G.
    Nesci, R.
    Qvam, J. K. T.
    Boeva, S.
    Penprase, B. E.
    Schmidt, R.
    Wiersema, K.
    Benson, K.
    Fossey, S. J.
    Rosi, P.
    Bozza, V.
    Conti, M.
    Snodgrass, C.
    Itoh, R.
    Norton, A. J.
    Hoette, V. L.
    Kurowski, Sebastian
    Han, C.
    Zhuchkov, R. Ya
    Blagorodnova, N.
    Reig, P.
    Sitek, M.
    Damljanovic, G.
    D'Ago, G.
    Awiphan, S.
    Calchi Novati, S.
    Zhukov, D. G.
    Kolb, U.
    Steele, I. A.
    Wambsganss, J.
    Rixon, G.
    Jelinek, M.
    Lu, J.
    Zubareva, A.
    Vince, O.
    Cropper, M.
    Eselevich, M. V.
    Moździerski, D.
    Kołaczkowski, Z.
    Grebenev, S. A.
    Leto, G.
    Gromadzki, M.
    Melnikov, S. S.
    Ihanec, N.
    Cross, S.
    Dziedzic, J.
    Strobl, J.
    Cepas, V.
    Maoz, D.
    Morrell, M.
    Paraskeva, E.
    Harrison, D. L.
    Soares, P. S.
    Cassan, A.
    Kouprianov, V. V.
    Russell, D. M.
    Clerici, A.
    Britavskiy, N.
    Gupta, A. C.
    Khamitov, I. M.
    Jensen, E.
    Klencki, J.
    Lee, C.-H.
    Tinjaca Ramirez, L. M.
    Burgaz, U.
    Street, R. A.
    Netzel, H.
    Jovanovic, M. D.
    Kaczmarek, Z.
    Hardy, L. K.
    Iwanek, P.
    Birenbaum, G.
    Handzlik, Barbara
    Bendjoya, P.
    Maskoliunas, M.
    Penny, M. T.
    Manser, C. J.
    Skowron, J.
    Ngeow, C.-C.
    Littlefair, S. P.
    Irtuganov, E. N.
    Zdanavicius, J.
    Villanueva, S.
    Bruni, I.
    Qasim, A. Al
    Li, Z.
    Spetsieri, Z. T.
    Blanco-Cuaresma, S.
    Baker, S.
    Sokolovsky, K.
    Bramich, D. M.
    Tsapras, Y.
    Esenoglu, H.
    Caines, H. E.
    Rhodes, L.
    Rivet, J.-P.
    Gutaev, A. G.
    Mikołajczyk, P.
    Cusano, F.
    Katz, D.
    Leonini, S.
    Shappee, B. J.
    Erece, O.
    Hundertmark, M.
    Kruszyńska, K.
    Liakos, A.
    Maund, J. R.
    Hamanowicz, A.
    Nazarov, S.
    Palaversa, L.
    Rybicki, K. A.
    Pakstiene, E.
    Janulis, R.
    Aldi, G. F.
    Dhillon, V. S.
    Roberts, D.
    Kilic, Y.
    de Bruijne, J. H. J.
    Prieto, J. L.
    Ment, K.
    Mróz, P.
    Ofek, E. O.
    Shvartzvald, Y.
    Pandey, A.
    Burenin, R. A.
    Eyer, L.
    Carrasco, J. M.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
    Tytuł:
    Supernova model discrimination with Hyper-Kamiokande
    Autorzy:
    Mineev, O.
    Minakata, H.
    Nakayoshi, K.
    Gialanella, L.
    Zaldivar, B.
    Kato, A.
    Kim, S. Y.
    Ashida, Y.
    Wilkes, R. J.
    Garode, S.
    Feng, J.
    Vilela, C.
    Pac, M. Y.
    Karlen, D.
    Suganuma, T.
    Kajita, T.
    Paganini, P.
    Lu, X.
    Gramegna, F.
    Nakadaira, T.
    Yano, T.
    Ostrowski, Michał
    Vivolo, D.
    Matusiak, M.
    Fiorillo, G.
    Mazzucato, E.
    Finch, A.
    Hiraide, K.
    Navarro-Garcia, B.
    Mondal, T.
    Ikeda, M.
    Insler, J.
    Kudenko, Y.
    Sato, K.
    Kumita, T.
    Malinský, M.
    Lamers James, M.
    Nascimento Machado, L.
    Wronka, S.
    Ohta, K.
    Iijima, T.
    Gornea, R.
    Maret, L.
    Jeon, S. H.
    Lim, I. T.
    Fiorentini, A.
    Matsumoto, R.
    O'Connor, E.
    Coleman, J.
    Harada, M.
    Kikawa, T.
    Danilov, M.
    Kearns, E.
    Yamaguchi, Y.
    Magaletti, L.
    Cartwright, S. L.
    Nishimura, Y.
    Jang, J. S.
    Radicioni, E.
    Vasseur, G.
    Barr, G.
    Porwit, K.
    Nakagiri, K.
    La Commara, M.
    Learned, J. G.
    Hirota, S.
    Marchi, T.
    Mollo, C. M.
    Di Palma, I.
    Sakashita, K.
    Izmaylov, A.
    El Hedri, S.
    Tsukamoto, T.
    Ochoa-Ricoux, J. P.
    Takemoto, Y.
    Medhi, A.
    Bonavera, L.
    Hartz, M.
    Pozimski, J.
    Zakrzewski, T.
    Chabera, M.
    Kinoshita, T.
    Stankevich, K. L.
    Payne, D.
    Renner, J.
    Doyle, T. A.
    Sashima, I.
    Matsuno, S.
    Takenaka, A.
    Loverre, P.
    Wachala, T.
    Gumplinger, P.
    Booth, N.
    Onishchuk, Y.
    Ichikawa, A. K.
    Ovsiannikova, T.
    Suzuki, A. T.
    Kameda, J.
    Sano, S.
    Yoo, J.
    Nakai, S.
    Hartfiel, B.
    Jiang, M.
    Moon, C. S.
    Pari, M.
    Jamieson, B.
    Hoshina, K.
    Nakajima, Y.
    Feusels, T.
    Ruggles, C.
    Drapier, O.
    Prouse, N. W.
    Kurjata, R.
    Mefodiev, A.
    Sekiguchi, T.
    Aushev, V.
    Labarga, L.
    Blanchet, A.
    Uchida, Y.
    Berardi, V.
    Yokoyama, M.
    Evangelisti, A.
    Kormos, L. L.
    Yeum, D. N.
    Wendell, R. A.
    Iacob, F.
    Ogawa, N.
    O'Sullivan, E.
    Yamamoto, K.
    Itow, Y.
    Boyd, S. B.
    Pasternak, J.
    Ruggeri, A. C.
    Ozaki, H.
    Boiano, A.
    Smy, M. B.
    Roth, S.
    Kim, S. B.
    Ferrazzi, B.
    Xie, Z.
    Xin, T.
    Stellacci, S. M.
    Fukuda, Y.
    Kouzakov, K. A.
    Kim, J. H.
    Sobczyk, J.
    Drakopoulou, E.
    Miki, S.
    De la Fuente, E.
    Munteanu, L.
    Yu, M.
    Hernando-Morata, J. A.
    Longhin, A.
    Orozco-Luna, F.
    Zarnecki, G.
    Korzenev, A.
    Spina, R.
    Lamoureux, M.
    Mongelli, M.
    Tzanov, M.
    Ioannisian, A.
    Cafagna, F. S.
    Mermod, P.
    González-Nuevo, J.
    Carroll, A.
    Garde, C.
    Grella, G.
    Bernardini, E.
    Palladino, V.
    Kravchuk, L.
    Boschi, T.
    Playfer, S.
    Tanaka, M.
    Suvorov, S.
    Rountree, S. D.
    Aihara, H.
    Buchowicz, A.
    Ameli, F.
    Akutsu, R.
    Hassani, S.
    Mahn, K.
    Fernández-Martinez, E.
    Cicerchia, M.
    Barker, G. J.
    Martin, D.
    Idrissi Ibnsalih, W.
    Anghel, I.
    Fernandez, P.
    Jonsson, P.
    Cook, L.
    Ishida, T.
    Wark, D.
    Martin, J. F.
    Borjabad, S.
    Checchia, C.
    Seo, J. W.
    Lindner, T.
    Pavin, M.
    Mora, F. J.
    Miura, M.
    Mellet, L.
    Russo, S.
    Sobel, H. W.
    Taketa, A.
    Ziembicki, M.
    Khotjantsev, A.
    Nakahata, M.
    Di Meo, P.
    Fujii, Y.
    Daz Lopez, G.
    Riccio, C.
    Wilson, J. R.
    Ito, S.
    Marinelli, A.
    Jang, H. I.
    Shimizu, I.
    Collazuol, G.
    Finley, C.
    Niewczas, K.
    Gorin, A.
    Berns, L.
    Antonova, M.
    Guigue, M.
    Densham, C. J.
    Sarmah, P.
    Poutissou, J. -M.
    Bozza, C.
    McGrew, C.
    Calabria, N. F.
    Ito, H.
    Bhadra, S.
    Peña-Garay, C.
    Shiozawa, M.
    Skwarczynski, K.
    Mariani, C.
    Kakuno, H.
    Magar, K.
    Konaka, A.
    Galinski, G.
    Ludovici, L.
    Taani, M.
    Yen, S.
    Friend, M.
    Shaykina, A.
    Cuen-Rochin, S.
    Soler, F. J. P.
    Jakkapu, M.
    Mezzetto, M.
    Murase, K.
    Pointon, B. W.
    Miller, E. W.
    Marti, Ll.
    Shin, C. D.
    Dumarchez, J.
    Kryukov, A. P.
    Kasperek, J.
    Ishidoshiro, K.
    Nakamura, KI.
    Pastore, C.
    Inomoto, M.
    Gomez-Cadenas, J. J.
    Suárez Gómez, S. L.
    Kisiel, J.
    Lee, J.
    Popov, A.
    Patel, D. A.
    Vijayvargi, A.
    Ellis, J.
    Joo, K. K.
    Khabibullin, M.
    Suzuki, Y.
    Grassi, M.
    Minamino, A.
    Svoboda, R.
    Malek, M.
    Walker, J.
    Zalipska, J.
    Menjo, H.
    Rubbia, A.
    Fitton, M.
    Rajda, P. J.
    Shinoki, M.
    Valentino, V.
    Tada, M.
    Santucci, G.
    Horiuchi, S.
    Giganti, C.
    Mehta, P.
    Seo, S. H.
    Kotsar, Y.
    Vyalkov, M. M.
    Holin, A.
    Choubey, S.
    Studenikin, A. I.
    Quiroga, A. A.
    Esmaili, A.
    Ishino, H.
    Bronner, C.
    Kobayashi, T.
    Bravo-Berguño, D.
    Okumura, K.
    Radics, B.
    Koshio, Y.
    Cao, S.
    Ishitsuka, M.
    Long, K. R.
    Sgalaberna, D.
    Makida, Y.
    Vagins, M. R.
    Monrabal, F.
    Di Lodovico, F.
    Bolognesi, S.
    Bose, D.
    Kazarian, N.
    Kalaczynski, P.
    Pinzon Guerra, E.
    Esteve, R.
    Kataoka, Y.
    Ogitsu, T.
    Takeuchi, Y.
    Stopa, K.
    Kano, Y.
    Parsa, S.
    Asaoka, Y.
    Deshmukh, N.
    Blaszczyk, F. d. M.
    Hastings, N. C.
    Quilain, B.
    Suzuki, S. Y.
    Koga, M.
    Litchfield, R. P.
    Richards, B.
    Feely, M.
    Laveder, M.
    McCarthy, M.
    Tortone, G.
    Rondio, E.
    Migliozzi, P.
    Kwak, K.
    Inoue, K.
    Przewlocki, P.
    Abe, K.
    Naseby, C. E. R.
    Nakaya, T.
    Pronost, G.
    Takhistov, V.
    Metelko, C.
    Bellato, M.
    Popov, B.
    Rychter, A.
    de Perio, P.
    Sonoda, Y.
    Nakamura, H.
    Frankiewicz, K.
    Bian, J.
    Batkiewicz-Kwasniak, M.
    Hill, J.
    Nicholls, T.
    Yershov, N.
    Nakayama, S.
    Lagoda, J.
    Santos, J. D.
    Spisso, B.
    Pidcott, C.
    Roskovec, B.
    Bubak, A.
    Tomatani-Sánchez, A. K.
    Zsoldos, S.
    Izumi, N.
    Sinnis, G.
    Moharana, R.
    Sánchez, M. L.
    Bravar, A.
    Dunne, P.
    Ferrario, P.
    Scott, M.
    Obrebski, W.
    Retiere, F.
    Kikec, M.
    Dergacheva, A.
    Alekseev, I.
    Gonin, M.
    Gao, J.
    Bandac, I.
    Hadley, D. R.
    Samani, S.
    Anthony, L. H. V.
    Rott, C.
    O'Keeffe, H. M.
    Noah, E.
    Skrobova, N.
    Migenda, J.
    Hayato, Y.
    Araya, A.
    Nakamura, K.
    Eklund, L.
    Suwa, Y.
    Tanaka, H. I.
    Leitner, R.
    Fedotov, S.
    Ryu, D.
    Garfagnini, A.
    Kowalik, K. L.
    De Rosa, G.
    King, S.
    Xia, J.
    Blondel, A.
    Kutter, T.
    Spradlin, P.
    Bernard, L.
    Chakraborty, S.
    Emery, S.
    Ospina, N.
    Pastuszak, G.
    Bergevin, M.
    Catanesi, M. G.
    Koch, L.
    Kolev, N.
    Ziętara, Krzysztof
    Jo, H. S.
    Nagao, Y.
    Lawe, M.
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    Maekawa, Y.
    Iwamoto, K.
    Cebriàn, S.
    Ricciardi, G.
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    Mueller, Th. A.
    Rescigno, M.
    Moon, D. H.
    Matsubara, T.
    Dziewiecki, M.
    Herrero, V.
    Oyama, Y.
    Zito, M.
    Cowan, G.
    Tanaka, H.
    Dealtry, T.
    Koerich, L.
    Stawarz, Łukasz
    Yu, I.
    Jenkins, S. J.
    Yonenaga, M.
    Lavitola, L.
    Needham, M.
    Calvo-Mozota, J. M.
    Buizza Avanzini, M.
    Ali, A.
    Moriyama, S.
    Sanchez, M. C.
    Adrich, P.
    Thiesse, M.
    Tsui, K. M.
    Vinning, W. G. S.
    Yanagisawa, C.
    Kuze, M.
    Brown, L.
    Sánchez, F.
    Wilking, M. J.
    Klekotko, A.
    Gousy-Leblanc, V.
    Lezaun, V.
    McElwee, J.
    Choi, J. H.
    O'Sullivan, L.
    Mitra, A.
    Takeda, A.
    Thompson, L. F.
    Tanaka, H. A.
    Mijakowski, P.
    Kim, J. Y.
    Paolone, V.
    Sekiya, H.
    Nova, F.
    Seiya, Y.
    Mine, S.
    Shan, Z.
    Nakano, Y.
    Katori, T.
    Barbi, M.
    Marzec, J.
    Rose, H. J.
    Posiadala-Zezula, M.
    McCauley, N.
    Wascko, M. O.
    Oshlianskyi, A.
    Nugent, J. C.
    Martens, K.
    Nunokawa, H.
    Svirida, D.
    Hultqvist, K.
    Shaikhiev, A.
    Devi, M. M.
    Vladisavljevic, T.
    Tashiro, T.
    Toledo, J.
    Vogelaar, R. B.
    Izumiyama, S.
    Valder, S.
    Opis:
    Core-collapse supernovae are among the most magnificent events in the observable universe. They produce many of the chemical elements necessary for life to exist and their remnants—neutron stars and black holes—are interesting astrophysical objects in their own right. However, despite millennia of observations and almost a century of astrophysical study, the explosion mechanism of core-collapse supernovae is not yet well understood. Hyper-Kamiokande is a next-generation neutrino detector that will be able to observe the neutrino flux from the next galactic core-collapse supernova in unprecedented detail. We focus on the first 500 ms of the neutrino burst, corresponding to the accretion phase, and use a newly-developed, high-precision supernova event generator to simulate Hyper-Kamiokande's response to five different supernova models. We show that Hyper-Kamiokande will be able to distinguish between these models with high accuracy for a supernova at a distance of up to 100 kpc. Once the next galactic supernova happens, this ability will be a powerful tool for guiding simulations toward a precise reproduction of the explosion mechanism observed in nature.
    Dostawca treści:
    Repozytorium Uniwersytetu Jagiellońskiego
    Artykuł
      Wyświetlanie 1-9 z 9

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