Zobrazeno 1 - 10
of 418
pro vyhledávání: '"Hailey Charles J."'
Autor:
Woo, Jooyun, Mori, Kaya, Hailey, Charles J., Spira-Savett, Elizabeth, Bamba, Aya, Grefenstette, Brian W., Humensky, Thomas B., Mukherjee, Reshmi, Safi-Harb, Samar, Temim, Tea, Tsuji, Naomi
Young supernova remnants (SNRs) are believed to be the origin of energetic cosmic rays (CRs) below the "knee" of their spectrum at $\sim3$ petaelectronvolt (PeV, $10^{15}$ eV). Nevertheless, the precise location, duration, and operation of CR acceler
Externí odkaz:
http://arxiv.org/abs/2410.16522
Autor:
Salcedo, Ciro, Mori, Kaya, Bridges, Gabriel, Hailey, Charles J., Buckley, David A. H., de Oliveira, Raimundo Lopes, Ramsay, Gavin, van Dyk, Anke
We report on XMM-Newton, NuSTAR, and NICER X-ray observations of CTCV J2056-3014, a cataclysmic variable (CV) with one of the fastest-spinning white dwarfs (WDs) at P = 29.6 s. While previously classified as an intermediate polar (IP), CJ2056 also ex
Externí odkaz:
http://arxiv.org/abs/2409.18247
Autor:
Mondal, Samaresh, Ponti, Gabriele, Filor, Luke, Bao, Tong, Haberl, Frank, Salcedo, Ciro, Campana, Sergio, Hailey, Charles J., Mori, Kaya, Rea, Nanda
Publikováno v:
A&A 689, A172 (2024)
We aim at characterizing the population of low-luminosity X-ray sources in the Galactic plane by studying their X-ray spectra and periodic signals in the light curves. We are performing an X-ray survey of the Galactic disk using XMM-Newton, and the s
Externí odkaz:
http://arxiv.org/abs/2407.03025
Autor:
Mondal, Samaresh, Ponti, Gabriele, Bao, Tong, Haberl, Frank, Campana, Sergio, Hailey, Charles J., Mandel, Shifra, Mereghetti, Sandro, Mori, Kaya, Morris, Mark R., Rea, Nanda, Sidoli, Lara
Publikováno v:
A&A 686, A125 (2024)
For many years, it has been claimed that the Galactic ridge X-ray emission at the Galactic Center (GC) is truly diffuse in nature. However, with the advancement of modern X-ray satellites, it has been found that most of the diffuse emission is actual
Externí odkaz:
http://arxiv.org/abs/2403.14480
Autor:
Manconi, Silvia, Woo, Jooyun, Shang, Ruo-Yu, Krivonos, Roman, Tang, Claudia, Di Mauro, Mattia, Donato, Fiorenza, Mori, Kaya, Hailey, Charles J.
Publikováno v:
A&A 689, A326 (2024)
Geminga is the first pulsar around which a remarkable TeV gamma-ray halo extending over a few degrees was discovered by MILAGRO, HAWC and later by H.E.S.S., and by Fermi-LAT in the GeV band. More middle-aged pulsars have exhibited gamma-ray halos, an
Externí odkaz:
http://arxiv.org/abs/2403.10902
Autor:
Vermette, Benjamin, Salcedo, Ciro, Mori, Kaya, Gerber, Julian, Yoon, Kyung Duk, Bridges, Gabriel, Hailey, Charles J., Haberl, Frank, Hong, Jaesub, Grindlay, Jonathan, Ponti, Gabriele, Ramsay, Gavin
We report a broad-band analysis of a Galactic X-ray source, CXOGBS J174517.0-321356 (J1745), with a 614-second periodicity. Chandra discovered the source in the direction of the Galactic Bulge. Gong (2022) proposed J1745 was either an intermediate po
Externí odkaz:
http://arxiv.org/abs/2307.11910
Autor:
Woo, Jooyun, An, Hongjun, Gelfand, Joseph D., Hailey, Charles J., Mori, Kaya, Mukherjee, Reshmi, Safi-Harb, Samar, Temim, Tea
We studied the PeVatron nature of the pulsar wind nebula G75.2+0.1 ("Dragonfly") as part of our NuSTAR observational campaign of energetic PWNe. The Dragonfly is spatially coincident with LHAASO J2018+3651 whose maximum photon energy is 0.27 PeV. We
Externí odkaz:
http://arxiv.org/abs/2306.07347
Autor:
Xiao, Mengjiao, Stoessl, Achim, Roach, Brandon, Gerrity, Cory, Bouche, Ian, Bridges, Gabriel, von Doetinchem, Philip, Hailey, Charles J., Kraych, Derik, Katt, Anika, Law, Michael, Lowell, Alexander, Martinez, Evan, Perez, Kerstin, Reed, Maggie, Rodriguez, Chelsea, Saffold, Nathan, Stringfield, Ceaser, Weiner, Hershel, Yee, Kelsey
Publikováno v:
IEEE Trans. Nucl. Sci. 70 (8), 2023, pp. 2125-2133
Lithium-drifted silicon [Si(Li)] has been used for decades as an ionizing radiation detector in nuclear, particle, and astrophysical experiments, though such detectors have frequently been limited to small sizes (few cm$^2$) and cryogenic operating t
Externí odkaz:
http://arxiv.org/abs/2305.00283
Autor:
Mondal, Samaresh, Ponti, Gabriele, Haberl, Frank, Anastasopoulou, Konstantina, Campana, Sergio, Mori, Kaya, Hailey, Charles J., Rea, Nanda
Publikováno v:
A&A 666, A150 (2022)
For the past decade, it has been suggested that intermediate polars (IPs), a subclass of magnetic cataclysmic variables (CVs), are one of the main contributors to the hard diffuse X-ray emission from the Galactic center (GC) and Galactic ridge. In ou
Externí odkaz:
http://arxiv.org/abs/2209.00970
Autor:
Rogers, Field, Aramaki, Tsuguo, Boezio, Mirko, Boggs, Steven, Bonvicini, Valter, Bridges, Gabriel, Campana, Donatella, Craig, William W., von Doetinchem, Philip, Everson, Eric, Fabris, Lorenzo, Feldman, Sydney, Fuke, Hideyuki, Gahbauer, Florian, Gerrity, Cory, Hailey, Charles J., Hayashi, Takeru, Kawachi, Akiko, Kozai, Masayoshi, Lenni, Alex, Lowell, Alexander, Manghisoni, Massimo, Marcelli, Nadir, Mochizuki, Brent, Mognet, Isaac, Munakata, Kazuoki, Munini, Riccardo, Nakagami, Yusuke, Olson, Jerome, Ong, Rene, Osteria, Guiseppe, Perez, Kerstin M., Quinn, Sean, Re, Valerio, Riceputi, Elisa, Roach, Brandon, Ryan, Jaime, Saffold, Nathan, Scotti, Valentina, Shimizu, Yuki, Sparvoli, Roberta, Stoessl, Achim, Tiberio, Alessio, Vannuccini, Elena, Wada, Takuya, Xiao, Mengjiao, Yamatani, Masahiro, Yee, Kelsey, Yoshida, Atsumasa, Yoshida, Tetsuya, Zampa, Gianluigi, Zeng, Jiancheng, Zweerink, Jeffrey
The General Antiparticle Spectrometer (GAPS) is an upcoming balloon mission to measure low-energy cosmic-ray antinuclei during at least three ~35-day Antarctic flights. With its large geometric acceptance and novel exotic atom-based particle identifi
Externí odkaz:
http://arxiv.org/abs/2206.12991