Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Ojha, Roopesh"'
Autor:
Benke, Petra, Rösch, Florian, Ros, Eduardo, Kadler, Matthias, Ojha, Roopesh, Edwards, Philip G., Horiuchi, Shinji, Hyland, Lucas J., Phillips, Chris, Quick, Jonathan F. H., Stevens, Jamie, Tzioumis, Anastasios K., Weston, Stuart
Publikováno v:
A&A 681, A69 (2024)
With the emergence of very high energy astronomy (VHE; E>100 GeV), new open questions were presented to astronomers studying the multi-wavelength emission from blazars. Answers to these open questions, such as the Doppler crisis, and finding the loca
Externí odkaz:
http://arxiv.org/abs/2310.10206
Autor:
Chase, Owen, McBride, Felicia, Gokus, Andrea, Lucchini, Matteo, Zhang, Haocheng, Ojha, Roopesh, Fox, Derek B.
PKS 2005-489 is a well-known, bright southern BL Lac object that has been detected up to TeV energies. In a low-flux state it exhibits the expected multiwavelength double-peaked spectrum in the radio -- $\gamma$-ray band. The high-flux state shows ex
Externí odkaz:
http://arxiv.org/abs/2303.15589
Autor:
collaboration, The Fermi-LAT, Ajello, Marco, Baldini, Luca, Ballet, Jean, Bastieri, Denis, Gonzalez, Josefa Becerra, Bellazzini, Ronaldo, Berretta, Alessandra, Bissaldi, Elisabetta, Bonino, Raffaella, Brill, Ari, Bruel, Philippe, Buson, Sara, Caputo, Regina, Caraveo, Patrizia, Cheung, Teddy, Chiaro, Graziano, Cibrario, Nicolo, Ciprini, Stefano, Crnogorcevic, Milena, Cutini, Sara, D'Ammando, Filippo, De Gaetano, Salvatore, Di Lalla, Niccolo, Di Venere, Leonardo, Dominguez, Alberto, Ramazani, Vandad Fallah, Ferrara, Elizabeth, Fiori, Alessio, Fukazawa, Yasushi, Funk, Stefan, Fusco, Piergiorgio, Gammaldi, Viviana, Gargano, Fabio, Garrappa, Simone, Gasparrini, Dario, Giglietto, Nico, Giordano, Francesco, Giroletti, Marcello, Green, David, Grenier, Isabelle, Guiriec, Sylvain, Horan, Deirdre, Hou, Xian, Kayanoki, Taishu, Kuss, Michael, Larsson, Stefan, Latronico, Luca, Lewis, Tiffany, Li, Jian, Liodakis, Ioannis, Longo, Francesco, Loparco, Francesco, Lott, Benoit, Lovellette, Michael, Lubrano, Pasquale, Madejski, Grzegorz, Maldera, Simone, Manfreda, Alberto, Marti-Devesa, Guillem, Mazziotta, Mario Nicola, Mereu, Isabella, Michelson, Peter, Mirabal, Nestor, Mitthumsiri, Warit, Mizuno, Tsunefumi, Monzani, Maria Elena, Morselli, Aldo, Moskalenko, Igor, Negro, Michela, Ojha, Roopesh, Orienti, Monica, Orlando, Elena, Ormes, Jonathan F., Pei, Zhiyuan, Pena-Herazo, Harold A., Persic, Massimo, Pesce-Rollins, Melissa, Petrosian, Vahe, Pillera, Roberta, Poon, Helen, Porter, Troy, Principe, Giacomo, Raino, Silvia, Rando, Riccardo, Rani, Bindu, Razzano, Massimiliano, Razzaque, Soebur, Reimer, Anita, Reimer, Olaf, Scargle, Jeff, Scotton, Lorenzo, Serini, Davide, Sgro, Carmelo, Siskind, Eric J., Spandre, Gloria, Spinelli, Paolo, Suson, Dan, Tajima, Hiro, Torres, Diego F., Valverde, Janeth, Yassin, Hend, Zaharijas, Gabrijela
An incremental version of the fourth catalog of active galactic nuclei (AGNs) detected by the Fermi-Large Area Telescope is presented. This version (4LAC-DR3) derives from the third data release of the 4FGL catalog based on 12 years of E>50 MeV gamma
Externí odkaz:
http://arxiv.org/abs/2209.12070
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:
Gokus, Andrea, Paliya, Vaidehi S., Wagner, Sarah M., Buson, Sara, D'Ammando, Filippo, Edwards, Philip G., Kadler, Matthias, Meyer, Manuel, Ojha, Roopesh, Stevens, Jamie, Wilms, Jörn
Publikováno v:
A&A 649, A77 (2021)
On 2019 October 25, the Fermi-Large Area Telescope observed the first gamma-ray flare from the radio-loud narrow-line Seyfert 1 (NLSy 1) galaxy PKS 2004$-$447 ($z=0.24$). We report on follow-up observations in the radio, optical-UV, and X-ray bands t
Externí odkaz:
http://arxiv.org/abs/2102.11633
Autor:
McEnery, Julie, Barrio, Juan Abel, Agudo, Ivan, Ajello, Marco, Álvarez, José-Manuel, Ansoldi, Stefano, Anton, Sonia, Auricchio, Natalia, Stephen, John B., Baldini, Luca, Bambi, Cosimo, Baring, Matthew, Barres, Ulisses, Bastieri, Denis, Beacom, John, Beckmann, Volker, Bednarek, Wlodek, Bernard, Denis, Bissaldi, Elisabetta, Bloser, Peter, Blumer, Harsha, Boettcher, Markus, Boggs, Steven, Bolotnikov, Aleksey, Bottacini, Eugenio, Bozhilov, Vladimir, Bozzo, Enrico, Briggs, Michael, Buckley, Jim, Burns, Eric, Buson, Sara, Campana, Riccardo, Caputo, Regina, Cardillo, Martina, Caroli, Ezio, Castro, Daniel, Cenko, S. Brad, Charles, Eric, Chen, Wenlei, Cheung, Teddy, Ciprini, Stefano, Coppi, Paolo, da Silva, Rui Curado, Cutini, Sara, D'Ammando, Filippo, De Angelis, Alessandro, De Becker, Michaël, De Nolfo, Georgia, Del Sordo, Stefano, Di Mauro, Mattia, Di Venere, Leonardo, Dietrich, Stefano, Digel, Seth, Dominguez, Alberto, Doro, Michele, Ferrara, Elizabeth, Fields, Brian, Finke, Justin, Foffano, Luca, Fryer, Chris, Fukazawa, Yasushi, Funk, Stefan, Gasparrini, Dario, Gelfand, Joseph, Georganopoulos, Markos, Giordano, Francesco, Giuliani, Andrea, Gouiffes, Christian, Grefenstette, Brian, Grenier, Isabelle, Griffin, Sean, Grove, Eric, Guiriec, Sylvain, Harding, Alice, Harding, Pat, Hartmann, Dieter, Hays, Elizabeth, Hernanz, Margarita, Hewitt, Jack, Holder, Jamie, Hui, Michelle, Inglis, Andrew, Johnson, Robert, Jones, Sam, Kanbach, Gottfried, Kargaltsev, Oleg, Kaufmann, Sarah, Kerr, Matthew, Kierans, Carolyn, Kislat, Fabian, Klimenko, Alexei V., Knodlseder, Jurgen, Kocveski, Daniel, Kopp, Joachim, Krawczynsiki, Henric, Krizmanic, John, Kubo, Hidetoshi, Neilson, Naoko Kurahashi, Laurent, Philippe, Lenain, Jean-Philippe, Li, Hui, Lien, Amy, Linden, Tim, Lommler, Jan, Longo, Francesco, Lovellette, Michael, López, Marcos, Manousakis, Antonios, Marcotulli, Lea, Marcowith, Alexandre, Martinez, Manel, McConnell, Marc, Metcalfe, Jessica, Meyer, Eileen, Meyer, Manuel, Mignani, Roberto, Mitchell, John, Mizuno, Tsunefumi, Moiseev, Alexander, Morcuende, Daniel, Moskalenko, Igor, Moss, Michael, Nakazawa, Kazuhiro, Mazziotta, M. Nicola, Oberlack, Uwe, Ohno, Masanori, Oikonomou, Foteini, Ojha, Roopesh, Omodei, Nicola, Orlando, Elena, Otte, Nepomuk, Paliya, Vaidehi S, Parker, Lucas, Patricelli, Barbara, Perkins, Jeremy, Petropoulou, Maria, Pittori, Carlotta, Pohl, Martin, Porter, Troy, Prandini, Elisa, Prescod-Weinstein, Chanda, Racusin, Judith, Rando, Riccardo, Rani, Bindu, Ribó, Marc, Rodi, James, Sanchez-Conde, Miguel A., Parkinson, Pablo Saz, Schirato, Richard, Shawhan, Peter, Shrader, Chris, Smith, Jacob, Smith, Karl, Stamerra, Antonio, Stawarz, Lukasz, Strong, Andy, Stumke, Inga, Tajima, Hiro, Takahashi, Hiromitsu, Tanaka, Yasuyuki, Tatischeff, Vincent, The, Lih-Sin, Thompson, David, Tibaldo, Luigi, Tomsick, John, Uhm, Lucas, Venters, Tonia, Vestrand, Tom, Vianello, Giacomo, Wadiasingh, Zorawar, Walter, Roland, Wang, Xilu, Williams, David, Wilson-Hodge, Colleen, Wood, Matthew, Woolf, Richard, Wulf, Eric, Younes, George, Zampieri, Luca, Zane, Silvia, Zhang, Bing, Zhang, Haocheng, Zimmer, Stephan, Zoglauer, Andreas, van der Horst, Alexander
The All-sky Medium Energy Gamma-ray Observatory (AMEGO) is a probe class mission concept that will provide essential contributions to multimessenger astrophysics in the late 2020s and beyond. AMEGO combines high sensitivity in the 200 keV to 10 GeV e
Externí odkaz:
http://arxiv.org/abs/1907.07558
Autor:
Paliya, Vaidehi S., Ajello, Marco, Marcotulli, Lea, Tomsick, John, Perkins, Jeremy S., Prandini, Elisa, D'Ammando, Filippo, De Angelis, Alessandro, Thompson, David, Li, Hui, Dominguez, Alberto, Beckmann, Volker, Guiriec, Sylvain, Wadiasingh, Zorawar, Coppi, Paolo, Harding, J. Patrick, Petropoulou, Maria, Hewitt, John W., Ojha, Roopesh, Marcowith, Alexandre, Doro, Michele, Castro, Daniel, Baring, Matthew, Hays, Elizabeth, Orlando, Elena, Bozhilov, Vladimir, Agudo, Ivan, Venters, Tonia, McEnery, Julie, The, Lih-Sin, Hartmann, Dieter, Buson, Sara, Longo, Francesco, Gasparrini, Dario
MeV blazars are the most luminous persistent sources in the Universe and emit most of their energy in the MeV band. These objects display very large jet powers and accretion luminosities and are known to host black holes with a mass often exceeding $
Externí odkaz:
http://arxiv.org/abs/1903.06106
Autor:
Venters, Tonia M., Guiriec, Sylvain, Lien, Amy Y., Ajello, Marco, Brandt, Terri J., Blumer, Harsha, Briggs, Michael, Coppi, Paolo, D'Ammando, Filippo, Fields, Brian, Finke, Justin, Fryer, Chris, Hamaguchi, Kenji, Harding, J. Patrick, Hewitt, John W., Humensky, Brian, Hunter, Stanley D., Li, Hui, Longo, Francesco, McEnery, Julie, Ojha, Roopesh, Pavlidou, Vasiliki, Petropoulou, Maria, Prescod-Weinstein, Chanda, Rani, Bindu, Santander, Marcos, Tomsick, John A., Wadiasingh, Zorawar, Walter, Roland
The high-energy universe has revealed that energetic particles are ubiquitous in the cosmos and play a vital role in the cultivation of cosmic environments on all scales. Though they play a key role in cultivating the cosmological environment and/or
Externí odkaz:
http://arxiv.org/abs/1903.04639
Autor:
Venters, Tonia M., Hamaguchi, Kenji, Brandt, Terri J., Ajello, Marco, Blumer, Harsha, Briggs, Michael, Coppi, Paolo, D'Ammando, Filippo, De Becker, Michaël, Fields, Brian, Guiriec, Sylvain, Hewitt, John W., Humensky, Brian, Hunter, Stanley D., Li, Hui, Lien, Amy Y., Longo, Francesco, Marcowith, Alexandre, McEnery, Julie, Ojha, Roopesh, Pavlidou, Vasiliki, Prescod-Weinstein, Chanda, Santander, Marcos, Tomsick, John A., Wadiasingh, Zorawar, Walter, Roland
The high-energy universe has revealed that energetic particles are ubiquitous in the cosmos and play a vital role in the cultivation of cosmic environments on all scales. Energetic particles in our own galaxy, galactic cosmic rays (GCRs), engage in a
Externí odkaz:
http://arxiv.org/abs/1903.04634
Autor:
Dutka, Michael S., Carpenter, Bryce D., Ojha, Roopesh, Finke, Justin D., D'Ammando, Filippo, Kadler, Matthias, Edwards, Philip G., Stevens, Jamie, Torresi, Eleonora, Grandi, Paola, Nesci, Roberto, Krauss, Felicia, Mueller, Cornelia, Wilms, Joern, Gehrels, Neil
Quasi-simultaneous observations of the Flat Spectrum Radio Quasar PKS 2326-502 were carried out in the gamma-ray, X-ray, UV, optical, near-infrared, and radio bands. Thanks to these observations we are able to characterize the spectral energy distrib
Externí odkaz:
http://arxiv.org/abs/1612.08061