Zobrazeno 1 - 10
of 343
pro vyhledávání: '"Caton, D"'
Autor:
Bhatta, Gopal, Zola, Staszek, Drozdz, M., Reichart, Daniel, Haislip, Joshua, Kouprianov, Vladimir, Matsumoto, Katsura, Sonbas, Eda, Caton, D., Pajdosz-Śmierciak, Urszula, Simon, A., Provencal, J., Góra, Dariusz, Stachowski, Grzegorz
Intense outbursts in blazars are among the most extreme phenomena seen in extragalactic objects. Studying these events can offer important information about the energetic physical processes taking place within the innermost regions of blazars, which
Externí odkaz:
http://arxiv.org/abs/2308.07861
Autor:
Agarwal, Aditi, Mihov, B., Agrawal, Vipul, Zola, S., Ozdonmez, Aykut, Ege, Ergun, Slavcheva-Mihova, L., Reichart, D. E., Caton, D. B., Das, Avik Kumar
We present an analysis of the $BVRI$ photometry of the blazar BL Lacertae on diverse timescales from mid-July to mid-September 2020. We have used 11 different optical telescopes around the world and have collected data over 84 observational nights. T
Externí odkaz:
http://arxiv.org/abs/2302.10177
Autor:
Bhatta, Gopal, Zola, Staszek, Drozdz, M., Reichart, Daniel, Haislip, Joshua, Kouprianov, Vladimir, Matsumoto, Katsura, Sonbas, Eda, Caton, D., Pajdosz-Śmierciak, Urszula, Simon, A., Provencal, J., Góra, Dariusz, Stachowski, Grzegorz
Flaring episodes in blazars represent one of the most violent processes observed in extra-galactic objects. Studies of such events shed light on the energetics of the physical processes occurring in the innermost regions of blazars, which cannot othe
Externí odkaz:
http://arxiv.org/abs/2301.09562
Autor:
Valtonen, Mauri J., Dey, Lankeswar, Zola, S., Ciprini, S., Kidger, M., Pursimo, T., Gopakumar, A., Matsumoto, K., Sadakane, K., Caton, D. B., Nilsson, K., Komossa, S., Bagaglia, M., Baransky, A., Boumis, P., Boyd, D., Castro-Tirado, A. J., Debski, B., Drozdz, M., Pérez, A. Escartin, Fiorucci, M., Garcia, F., Gazeas, K., Ghosh, S., Godunova, V., Gomez, J. L., Gredel, R., Grupe, D., Haislip, J. B., Henning, T., Hurst, G., Janík, J., Kouprianov, V. V., Lehto, H., Liakos, A., Mathur, S., Mugrauer, M., Nogues, R. Naves, Nucciarelli, G., Ogloza, W., Ojha, D. K., Pajdosz-Śmierciak, U., Pascolini, S., Poyner, G., Reichart, D. E., Rizzi, N., Roncella, F., Sahu, D. K., Sillanpää, A., Simon, A., Siwak, M., Alfaro, F. C. Soldán, Sonbas, E., Tosti, G., Vasylenko, V., Webb, J. R., Zielinski, P.
OJ 287 is a BL Lacertae type quasar in which the active galactic nucleus (AGN) outshines the host galaxy by an order of magnitude. The only exception to this may be at minimum light when the AGN activity is so low that the host galaxy may make quite
Externí odkaz:
http://arxiv.org/abs/2205.15589
Autor:
Lee, H. -J., Kim, M. -J., Marciniak, A., Kim, D. -H., Moon, H. -K., Choi, Y. -J., Zoła, S., Chatelain, J., Lister, T. A., Gomez, E., Greenstreet, S., Pál, A., Szakáts, R., Erasmus, N., Lees, R., van Rensburg, P. Janse, Ogłoza, W., Dróżdż, M., Żejmo, M., Kamiński, K., Kamińska, M. K., Duffard, R., Roh, D. -G., Yim, H. -S., Kim, T., Mottola, S., Yoshida, F., Reichart, D. E., Sonbas, E., Caton, D. B., Kaplan, M., Erece, O., Yang, H.
Publikováno v:
A&A 661, L3 (2022)
Context. The close approach of the near-Earth asteroid (99942) Apophis to Earth in 2029 will provide a unique opportunity to examine how the physical properties of the asteroid could be changed due to the Earth's gravitational perturbation. As a resu
Externí odkaz:
http://arxiv.org/abs/2204.02540
Autor:
Oliveira, J. Marques, Sicardy, B., Gomes-Júnior, A. R., Ortiz, J. L., Strobel, D. F., Bertrand, T., Forget, F., Lellouch, E., Desmars, J., Bérard, D., Doressoundiram, A., Lecacheux, J., Leiva, R., Meza, E., Roques, F., Souami, D., Widemann, T., Santos-Sanz, P., Morales, N., Duffard, R., Fernández-Valenzuela, E., Castro-Tirado, A. J., Braga-Ribas, F., Morgado, B. E., Assafin, M., Camargo, J. I. B., Vieira-Martins, R., Benedetti-Rossi, G., Santos-Filho, S., Banda-Huarca, M. V., Quispe-Huaynasi, F., Pereira, C. L., Rommel, F. L., Margoti, G., Dias-Oliveira, A., Colas, F., Berthier, J., Renner, S., Hueso, R., Pérez-Hoyos, S., Sánchez-Lavega, A., Rojas, J. F., Beisker, W., Kretlow, M., Herald, D., Gault, D., Bath, K. -L., Bode, H. -J., Bredner, E., Guhl, K., Haymes, T. V., Hummel, E., Kattentidt, B., Klös, O., Pratt, A., Thome, B., Avdellidou, C., Gazeas, K., Karampotsiou, E., Tzouganatos, L., Kardasis, E., Christou, A. A., Xilouris, E. M., Alikakos, I., Gourzelas, A., Liakos, A., Charmandaris, V., Jelínek, M., Štrobl, J., Eberle, A., Rapp, K., Gährken, B., Klemt, B., Kowollik, S., Bitzer, R., Miller, M., Herzogenrath, G., Frangenberg, D., Brandis, L., Pütz, I., Perdelwitz, V., Piehler, G. M., Riepe, P., von Poschinger, K., Baruffetti, P., Cenadelli, D., Christille, J. -M., Ciabattari, F., Di Luca, R., Alboresi, D., Leto, G., Sanchez, R. Zanmar, Bruno, P., Occhipinti, G., Morrone, L., Cupolino, L., Noschese, A., Vecchione, A., Scalia, C., Savio, R. Lo, Giardina, G., Kamoun, S., Barbosa, R., Behrend, R., Spano, M., Bouchet, E., Cottier, M., Falco, L., Gallego, S., Tortorelli, L., Sposetti, S., Sussenbach, J., Abbeel, F. Van Den, André, P., Llibre, M., Pailler, F., Ardissone, J., Boutet, M., Sanchez, J., Bretton, M., Cailleau, A., Pic, V., Granier, L., Chauvet, R., Conjat, M., Dauvergne, J. L., Dechambre, O., Delay, P., Delcroix, M., Rousselot, L., Ferreira, J., Machado, P., Tanga, P., Rivet, J. -P., Frappa, E., Irzyk, M., Jabet, F., Kaschinski, M., Klotz, A., Rieugnie, Y., Klotz, A. N., Labrevoir, O., Lavandier, D., Walliang, D., Leroy, A., Bouley, S., Lisciandra, S., Coliac, J. -F., Metz, F., Erpelding, D., Nougayrède, P., Midavaine, T., Miniou, M., Moindrot, S., Morel, P., Reginato, B., Reginato, E., Rudelle, J., Tregon, B., Tanguy, R., David, J., Thuillot, W., Hestroffer, D., Vaudescal, G., Aissa, D. Baba, Grigahcene, Z., Briggs, D., Broadbent, S., Denyer, P., Haigh, N. J., Quinn, N., Thurston, G., Fossey, S. J., Arena, C., Jennings, M., Talbot, J., Alonso, S., Reche, A. Román, Casanova, V., Briggs, E., Iglesias-Marzoa, R., Ibáñez, J. Abril, Martín, M. C. Díaz, González, H., García, J. L. Maestre, Marchant, J., Ordonez-Etxeberria, I., Martorell, P., Salamero, J., Organero, F., Ana, L., Fonseca, F., Peris, V., Brevia, O., Selva, A., Perello, C., Cabedo, V., Gonçalves, R., Ferreira, M., Dias, F. Marques, Daassou, A., Barkaoui, K., Benkhaldoun, Z., Guennoun, M., Chouqar, J., Jehin, E., Rinner, C., Lloyd, J., Moutamid, M. El, Lamarche, C., Pollock, J. T., Caton, D. B., Kouprianov, V., Timerson, B. W., Blanchard, G., Payet, B., Peyrot, A., Teng-Chuen-Yu, J. -P., Françoise, J., Mondon, B., Payet, T., Boissel, C., Castets, M., Hubbard, W. B., Hill, R., Reitsema, H. J., Mousis, O., Ball, L., Neilsen, G., Hutcheon, S., Lay, K., Anderson, P., Moy, M., Jonsen, M., Pink, I., Walters, R., Downs, B.
Publikováno v:
A&A 659, A136 (2022)
A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of which yielded a central flash detection. We aimed at constraining Trit
Externí odkaz:
http://arxiv.org/abs/2201.10450
Autor:
Goyal, Arti, Soida, Marian, Stawarz, Lukasz, Wiita, Paul J., Nilsson, Kari, Jorstad, Svetlana, Marscher, Alan P., Aller, Margo F., Aller, Hugh D., Lahteenmaki, Anne, Hovatta, Talvikki, Zola, Staszek, Nalewajko, Krzysztof, Tornikoski, Merja, Tammi, Joni, Hodges, Mark, Kiehlmann, Sebastian, Readhead, Anthony C. S., Max-Moerbeck, Walter, Lindfors, Elina, Ramazani, Vandad Fallah, Reichart, D. E., Caton, D. B., Valverde, Janeth, Horan, Deirdre, Ojha, Roopesh, van Zyl, Pfesesani
We present the results of variability power spectral density (PSD) analysis using multiwavelength radio to GeV\,$\gamma$-ray light curves covering decades/years to days/minutes timescales for the blazars 3C 279 and PKS 1510-089. The PSDs are modeled
Externí odkaz:
http://arxiv.org/abs/2112.04194
Autor:
Lobban, A. P., Zola, S., Pajdosz-Smierciak, U., Braito, V., Nardini, E., Bhatta, G., Markowitz, A., Bachev, R., Carosati, D., Caton, D. B., Damljanovic, G., Debski, B., Haislip, J. B., Hu, S. M., Kouprianov, V., Krzesinski, J., Porquet, D., Nunez, F. Pozo, Reeves, J., Reichart, D. E.
We report on the results of a multiwavelength monitoring campaign of the bright, nearby Seyfert galaxy, Ark 120 using a ~50-day observing programme with Swift and a ~4-month co-ordinated ground-based observing campaign, predominantly using the Skynet
Externí odkaz:
http://arxiv.org/abs/2002.12348
Autor:
Wyrzykowski, Łukasz, Mróz, P., Rybicki, K. A., Gromadzki, M., Kołaczkowski, Z., Zieliński, M., Zieliński, P., Britavskiy, N., Gomboc, A., Sokolovsky, K., Hodgkin, S. T., Abe, L., Aldi, G. F., AlMannaei, A., Altavilla, G., Qasim, A. Al, Anupama, G. C., Awiphan, S., Bachelet, E., Bakıs, V., Baker, S., Bartlett, S., Bendjoya, P., Benson, K., Bikmaev, I. F., Birenbaum, G., Blagorodnova, N., Blanco-Cuaresma, S., Boeva, S., Bonanos, A. Z., Bozza, V., Bramich, D. M., Bruni, I., Burenin, R. A., Burgaz, U., Butterley, T., Caines, H. E., Caton, D. B., Novati, S. Calchi, Carrasco, J. M., Cassan, A., Cepas, V., Cropper, M., Chruślińska, M., Clementini, G., Clerici, A., Conti, D., Conti, M., Cross, S., Cusano, F., Damljanovic, G., Dapergolas, A., D'Ago, G., de Bruijne, J. H. J., Dennefeld, M., Dhillon, V. S., Dominik, M., Dziedzic, J., Ereceantalya, O., Eselevich, M. V., Esenoglu, H., Eyer, L., Jaimes, R. Figuera, Fossey, S. J., Galeev, A. I., Grebenev, S. A., Gupta, A. C., Gutaev, A. G., Hallakoun, N., Hamanowicz, A., Han, C., Handzlik, B., Haislip, J. B., Hanlon, L., Hardy, L. K., Harrison, D. L., van Heerden, H. J., Hoette, V. L., Horne, K., Hudec, R., Hundertmark, M., Ihanec, N., Irtuganov, E. N., Itoh, R., Iwanek, P., Jovanovic, M. D., Janulis, R., Jelínek, M., Jensen, E., Kaczmarek, Z., Katz, D., Khamitov, I. M., Kilic, Y., Klencki, J., Kolb, U., Kopacki, G., Kouprianov, V. V., Kruszyńska, K., Kurowski, S., Latev, G., Lee, C-H., Leonini, S., Leto, G., Lewis, F., Li, Z., Liakos, A., Littlefair, S. P., Lu, J., Manser, C. J., Mao, S., Maoz, D., Martin-Carrillo, A., Marais, J. P., Maskoliūnas, M., Maund, J. R., Meintjes, P. J., Melnikov, S. S., Ment, K., Mikołajczyk, P., Morrell, M., Mowlavi, N., Moździerski, D., Murphy, D., Nazarov, S., Netzel, H., Nesci, R., Ngeow, C. -C., Norton, A. J., Ofek, E. O., Pakstienė, E., Palaversa, L., Pandey, A., Paraskeva, E., Pawlak, M., Penny, M. T., Penprase, B. E., Piascik, A., Prieto, J. L., Qvam, J. K. T., Ranc, C., Rebassa-Mansergas, A., Reichart, D. E., Reig, P., Rhodes, L., Rivet, J. -P., Rixon, G., Roberts, D., Rosi, P., Russell, D. M., Sanchez, R. Zanmar, Scarpetta, G., Seabroke, G., Shappee, B. J., Schmidt, R., Shvartzvald, Y., Sitek, M., Skowron, J., Śniegowska, M., Snodgrass, C., Soares, P. S., van Soelen, B., Spetsieri, Z. T., Stankeviciūtė, A., Steele, I. A., Street, R. A., Strobl, J., Strubble, E., Szegedi, H., Ramirez, L. M. Tinjaca, Tomasella, L., Tsapras, Y., Vernet, D., Villanueva Jr., S., Vince, O., Wambsganss, J., van der Westhuizen, I. P., Wiersema, K., Wium, D., Wilson, R. W., Yoldas, A., Zhuchkov, R. Ya., Zhukov, D. G., Zdanavicius, J., Zoła, S., Zubareva, A.
Publikováno v:
A&A 633, A98 (2020)
Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct brighteni
Externí odkaz:
http://arxiv.org/abs/1901.07281
Autor:
Bhatta, G., Stawarz, L., Markowitz, A., Balasubramaniam, K., Zola, S., Zdziarski, A. A., Jamrozy, M., Ostrowski, M., Kuzmicz, A., Ogloza, W., Drozdz, M., Siwak, M., Koziel-Wierzbowska, D., Debski, B., Kundera, T., Stachowski, G., Machalski, J., Paliya, V. S., Caton, D. B.
Here we explore the disk-jet connection in the broad-line radio quasar 4C+74.26, utilizing the results of the multiwavelength monitoring of the source. The target is unique in that its radiative output at radio wavelengths is dominated by a moderatel
Externí odkaz:
http://arxiv.org/abs/1805.06957