Results 131 to 140 of about 145,288 (313)

The Nuclear Astrophysics program at n_TOF (CERN)

, 2017
An important experimental program on Nuclear Astrophysics is being carried out at the n_TOF since several years, in order to address the still open issues in stellar and primordial nucleosynthesis.
Losito, Roberto, Smith, Alastair Gavin, Harada, Hideo, Reifarth, René, Ryan, James A., Göbel, Kathrin, Ventura, Alberto, Robles Manzano, Maria Soledad, Mastromarco, Mario, Gilardoni, Simone, Finocchiaro, Paolo, Furman, Valter, Mazzone, Annamaria, Sedyshev, Pavel V., Dressler, Rugard, Kalamara, Antigoni, Kokkoris, Michael, Praena, Javier, Bacak, Michael, Balibrea Correa, Javier, Heyse, Jan, Kavrigin, Pavel, Schillebeeckx, Peter, Vaz, Pedro, Mallick, Amod Kishore, Pavlik, Andreas, Cortés-Giraldo, Miguel Antonio, Vannini, Gianni, Barbagallo, Massimo, Lonsdale, Sarah Jane, Durán, Ignacio, Woods, Philip John, Kimura, Atsushi, Fernández Domínguez, Beatriz, Cerutti, Francesco, Gunsing, Frank, Tsinganis, Andrea, Sabaté-Gilarte, Marta, Musumarra, Agatino, García Ríos, Aczel Regino, Lederer, Claudia, Billowes, Jonathan, Vlastou, Rosa, Clai, Giulia, Massimi, Cristian, Lerendegui-Marco, Jorge, Jericha, Erwin, Wallner, Anton, Quesada Molina, José Manuel, Schumann, Dorothea, Brown, Adam, Žugec, Petar, Griesmayer, Erich, Kurtulgil, Cem Deniz, Warren, Stephen J., Mendoza Cembranos, Emilio, Damone, Lucia Anna, Kivel, Nikolay, Krtička, Milan, Kroll, Jiří, Taı́n Enríquez, José Luis, Leal Cidoncha, Esther, González Romero, Enrique Miguel, Patronis, Nikolas, Piersanti, Luciano, Chen, Yonghao, Glodariu, Tudor, Mirea, Mihail, Caamaño, Manuel, Jenkins, David, Saxena, Alok, Tassan-Got, Laurent, Mastinu, Pierfrancesco, Vlachoudis, Vasilis, Calviño Tavares, Francisco, Maugeri, Emilio Andrea, Lo Meo, Sergio, Nolte, Ralf, Negret, Alexandru, Macina, Daniela, Variale, Vincenzo, Gawlik, Aleksandra, Milazzo, Paolo Maria, Cano-Ott, Daniel, Cardella, Roberto, Riego Pérez, Albert, Domingo-Pardo, César, Masi, Alessandro, Bosnar, Damir, Marganiec, Justyna, Mengoni, Alberto, Oprea, Andreea, Tarifeño-Saldivia, Ariel, Ferreira, Pedro G., Käppeler, Franz, Audouin, Laurent, Bečvář, František, Berthoumieux, Eric, Cristallo, Sergio, Langer, Christoph, Diakaki, Maria, Valenta, Stanislav, Cortés Rossell, Guillem Pere, Stamatopoulos, Athanasios, Weiß, Christina, Cosentino, Colonna, Nicola, Porras Sánchez, José Ignacio, Tagliente, Giuseppe, Hernández Prieto, Álvaro, Gonçalves, Isabel Maria Ferro, Leeb, Helmut, Ferrari, Alfredo, Andrzejewski, Józef, Calviani, Marco, Kadi, Yacine, Wright, Tobias, Sosnin, Nikolay V., Perkowski, Jarosław, Rubbia, Carlo, Casanovas Hoste, Adrià, Chiaveri, Enrico, Radeck, Désirée, Mingrone, Federica, Dupont, Emmeric, Rauscher, Thomas, Heinitz, Stephan, Aberle, Oliver, Martı́nez, Trinitario, Guerrero Sánchez, Carlos   +129 more
core   +1 more source

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

Mathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

New knowledge about shock events that affected the L‐chondrite parent body from two heavily shocked L6 meteorite finds

Meteoritics &Planetary Science, EarlyView.
Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis, L. Ferrière, C. Ma, J. Hu, D. Palles, P. D. Asimow   +5 more
wiley   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Gravitational waves: a challenge to theoretical astrophysics

, 2001
Proocedings of the International Conference "Gravitational waves: a challenge to theoretical astrophysics" ICTP Lecture Series, ISBN 92-95003-05 ...
L. REZZOLLA, J. C. MILLER, FERRARI, Valeria   +2 more
core  

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

Superconducting Detector Arrays for Astrophysics

, 2008
The next generation of astrophysics instruments will feature an order of magnitude more photon sensors or sensors that have an order of magnitude greater sensitivity.
Chervenak, James
core  

Astrophysics Update 2

, 2006
"Astrophysics Updates" is intended to serve the information needs of professional astronomers and postgraduate students about areas of astronomy, astrophysics and cosmology that are rich and active research spheres.
Mason, John W
core   +1 more source