Zobrazeno 1 - 10
of 33 731
pro vyhledávání: '"A. Fryer"'
Autor:
Fryer, Christopher L., Burns, Eric, Ho, Anna Y. Q., Corsi, Alessandra, Lien, Amy Y., Perley, Daniel A., Vail, Jada L., Villar, V. Ashley
For over 25 years, the origin of long-duration gamma-ray bursts (lGRBs) has been linked to the collapse of rotating massive stars. However, we have yet to pinpoint the stellar progenitor powering these transients. Moreover, the dominant engine poweri
Externí odkaz:
http://arxiv.org/abs/2410.10378
Autor:
Ray, Paul S., Roming, Peter W. A., Argan, Andrea, Arzoumanian, Zaven, Ballantyne, David R., Bogdanov, Slavko, Bonvicini, Valter, Brandt, Terri J., Bursa, Michal, Cackett, Edward M., Chakrabarty, Deepto, Christophersen, Marc, Coderre, Kathleen M., De Geronimo, Gianluigi, Del Monte, Ettore, DeRosa, Alessandra, Dietz, Harley R., Evangelista, Yuri, Feroci, Marco, Ford, Jeremy J., Froning, Cynthia, Fryer, Christopher L., Gendreau, Keith C., Goldstein, Adam, Gonzalez, Anthony H., Hartmann, Dieter, Hernanz, Margarita, Hutcheson, Anthony, Zand, Jean in `t, Jenke, Peter, Kennea, Jamie, Lloyd-Ronning, Nicole M., Maccarone, Thomas J., Maes, Dominic, Markwardt, Craig B., Michalska, Malgorzata, Okajima, Takashi, Patruno, Alessandro, Persyn, Steven C., Phillips, Mark L., Prescod-Weinstein, Chanda, Redfern, Jillian A., Remillard, Ronald A., Santangelo, Andrea, Schwendeman, Carl L., Sleator, Clio, Steiner, James, Strohmayer, Tod E., Svoboda, Jiri, Tenzer, Christoph, Thompson, Steven P., Warwick, Richard W., Watts, Anna L., Wilson-Hodge, Colleen A., Wu, Xin, Wulf, Eric A., Zampa, Gianluigi
We give an overview of the science objectives and mission design of the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X) observatory, which has been proposed as a NASA probe-class (~$1.5B) mission in response to the Ast
Externí odkaz:
http://arxiv.org/abs/2410.08342
Autor:
De Looze, Ilse, Milisavljevic, Dan, Temim, Tea, Dickinson, Danielle, Fesen, Robert, Arendt, Richard G., Chastenet, Jeremy, Orlando, Salvatore, Vink, Jacco, Barlow, Michael J., Kirchschlager, Florian, Priestley, Felix D., Raymond, John C., Rho, Jeonghee, Sartorio, Nina S., Scheffler, Tassilo, Schmidt, Franziska, Blair, William P., Fox, Ori, Fryer, Christopher, Janka, Hans-Thomas, Koo, Bon-Chul, Laming, J. Martin, Matsuura, Mikako, Patnaude, Dan, Relano, Monica, Rest, Armin, Schmidt, Judy, Smith, Nathan, Sravan, Niharika
JWST observations of the young Galactic supernova remnant Cassiopeia A revealed an unexpected structure seen as a green emission feature in colored composite MIRI F1130W and F1280W images - hence dubbed the Green Monster - that stretches across the c
Externí odkaz:
http://arxiv.org/abs/2410.05402
Autor:
Becerra, L. M., Cipolletta, F., Fryer, C. L., Menezes, Débora P., Providência, Constança, Rueda, J. A., Ruffini, R.
The binary-driven hypernova (BdHN) model proposes long gamma-ray bursts (GRBs) originate in binaries composed of a carbon-oxygen (CO) star and a neutron star (NS) companion. The CO core collapse generates a newborn NS and a supernova that triggers th
Externí odkaz:
http://arxiv.org/abs/2409.05767
Autor:
Rho, J., Park, S. -H., Arendt, R., Matsuura, M., Milisavljevic, D., Temim, T., De Looze, I., Blair, W. P., Rest, A., Fox, O., Ravi, A. P., Koo, B. -C., Barlow, M., Burrows, A., Chevalier, R., Clayton, G., Fesen, R., Fransson, C., Fryer, C., Gomez, H. L., Janka, H. -T., Kirchschlarger, F., Laming, J. M., Orlando, S., Patnaude, D., Pavlov, G., Plucinsky, P., Posselt, B., Priestley, F., Raymond, J., Sartorio, N., Schmidt, F., Slane, P., Smith, N., Sravan, N., Vink, J., Weil, K., Wheeler, J., Yoon, S. C.
We present JWST NIRCam (F356W and F444W filters) and MIRI (F770W) images and NIRSpec- IFU spectroscopy of the young supernova remnant Cassiopeia A (Cas A). We obtained the data as part of a JWST survey of Cas A. The NIRCam and MIRI images map the spa
Externí odkaz:
http://arxiv.org/abs/2406.03685
Publikováno v:
A&A 686, L8 (2024)
The $\gamma$-process in core-collapse supernovae (CCSNe) can produce a number of neutron-deficient stable isotopes heavier than iron (p-nuclei). However, current model predictions do to not fully reproduce the solar abundances. We investigate the imp
Externí odkaz:
http://arxiv.org/abs/2405.07783
Autor:
Peng, Yinglei, Ristić, Marko, Kedia, Atul, O'Shaughnessy, Richard, Fontes, Christopher J., Fryer, Chris L., Korobkin, Oleg, Mumpower, Matthew R., Villar, V. Ashley, Wollaeger, Ryan T.
Publikováno v:
Phys. Rev. Res. 6, 033078 (2024)
Kilonovae are the electromagnetic transients created by the radioactive decay of freshly synthesized elements in the environment surrounding a neutron star merger. To study the fundamental physics in these complex environments, kilonova modeling requ
Externí odkaz:
http://arxiv.org/abs/2402.05871
We present smoothed-particle-hydrodynamics (SPH) simulations of the binary-driven hypernova (BdHN) scenario of long gamma-ray bursts (GRBs), focusing on the binary stability during the supernova (SN) explosion. The BdHN progenitor is a binary compris
Externí odkaz:
http://arxiv.org/abs/2401.15702
Machine learning model bias can arise from dataset composition: sensitive features correlated to the learning target disturb the model decision rule and lead to performance differences along the features. Existing de-biasing work captures prominent a
Externí odkaz:
http://arxiv.org/abs/2401.13213
Autor:
Wollaeger, Ryan T., Fryer, Chris L., Chiodi, Robert, Brady, Peter T., Korobkin, Oleg, Harnish, Cale, Fontes, Christopher J., Haack, Jeffrey R., Chapurin, Oleksandr, Koshkarov, Oleksandr, Delzanno, Gian Luca, Livescu, Daniel
The interaction of $\beta$-particles with the weakly ionized plasma background is an important mechanism for powering the kilonova transient signal from neutron star mergers. For this purpose, we present an implementation of the approximate fast-part
Externí odkaz:
http://arxiv.org/abs/2401.11069