Results 81 to 90 of about 197,763 (248)

Supernova Dust Evolution Probed by Deep-sea 60Fe Time History

The Astrophysical Journal, 2023
There is a wealth of data on live, undecayed ^60 Fe ( t _1/2 = 2.6 Myr) in deep-sea deposits, the lunar regolith, cosmic rays, and Antarctic snow, which is interpreted as originating from the recent explosions of at least two near-Earth supernovae.
Adrienne F. Ertel, Brian J. Fry, Brian D. Fields, John Ellis   +3 more
doaj   +1 more source

Strong evidence for hadron acceleration in Tycho’s supernova remnant [PDF]

, 2011
Context. Very recent gamma-ray observations of G120.1+1.4 (Tycho’s) supernova remnant (SNR) by Fermi-LAT and VERITAS have provided new fundamental pieces of information for understanding particle acceleration and nonthermal emission in SNRs. Aims.
G. Morlino, D. Caprioli
semanticscholar   +1 more source

Synthesis and Characterization of [MF5(terpy)]+ (M = Mo, W) Salts: Autoionization of MF6 Induced by a Tridentate Ligand

Chemistry – A European Journal, EarlyView.
The hexafluorides MoF6 and WF6 autoionize in the presence of the tridentate terpyridine ligand, yielding [MF5(terpy)]+[MF7]– (M = Mo, W). The octacoordinated [MF5(terpy)]+ cations adopt bicapped trigonal prismatic geometries. The [WF7]– can be substituted for [SbF6]– using SbF5SO2, whereas the reaction was unsuccessful for displacing the [MoF7]– anion.
Miriam D. van Hoeve, Taylor P. K. Adamitz, Felix O'Donnell, Stacey D. Wetmore, Michael Gerken   +4 more
wiley   +1 more source

Footprints of the Newly-Discovered Vela Supernova in Antarctic Ice Cores?

, 1999
The recently-discovered, nearby young supernova remnant in the southeast corner of the older Vela supernova remnant may have been seen in measurements of nitrate abundances in Antarctic ice cores.
Aschenbach, Ashworth, Bignami, C.P. Burgess, Castagnoli, Clark, Crutzen, Ellis, Halpern, Herron, Iyudin, K. Zuber, Mayewski, Norman, Parker, Risbo, Rood, Ruderman, Stager, Whitten, Wietfeldt   +20 more
core   +2 more sources

X-ray ejecta kinematics of the Galactic core-collapse supernova remnant G292.0+1.8 [PDF]

, 2014
We report on the results from the analysis of our 114 ks Chandra HETGS observation of the Galactic core-collapse supernova remnant G292.0+1.8. To probe the 3D structure of the clumpy X-ray emitting ejecta material in this remnant, we measured Doppler ...
Bhalerao, Jayant, Dewey, Daniel, Hughes, John P., Lee, Jae-Joon, Mori, Koji, Park, Sangwook   +5 more
core   +3 more sources

NEUTRAL PION EMISSION FROM ACCELERATED PROTONS IN THE SUPERNOVA REMNANT W44 [PDF]

, 2011
We present the AGILE gamma-ray observations in the energy range 50 MeV–10 GeV of the supernova remnant (SNR) W44, one of the most interesting systems for studying cosmic-ray production.
A. Giuliani, M. Cardillo, M. Tavani, Y. Fukui, S. Yoshiike, K. Torii, G. Dubner, G. Castelletti, G. Barbiellini, A. Bulgarelli, P. Caraveo, E. Costa, P. Cattaneo, A. Chen, T. Contessi, E. Monte, I. Donnarumma, Y. Evangelista, M. Feroci, F. Gianotti, Francesco Lazzarotto, F. Lucarelli, F. Longo, M. Marisaldi, S. Mereghetti, L. Pacciani, A. Pellizzoni, G. Piano, P. Picozza, C. Pittori, G. Pucella, M. Rapisarda, A. Rappoldi, S. Sabatini, P. Soffitta, E. Striani, M. Trifoglio, A. Trois, S. Vercellone, F. Verrecchia, V. Vittorini, S. Colafrancesco, P. Giommi, G. Bignami   +43 more
semanticscholar   +1 more source

Exploring the Radiation Damage of Vacancy‐Ordered Double Perovskites, ((NH4)(1−x)FAx)2SnBr6

ChemPhysChem, EarlyView.
Incident X‐ray photons hν on a newly reported vacancy‐ordered double perovskite FA2SnBr6 results in damage of the compound. This is seen over increasing X‐ray dose using X‐ray photoelectron spectroscopy. Degradation studies of the ASnX3 perovskites to the A2SnX6 vacancy‐ordered double perovskite form have been well researched, but little is known about
Prajna Bhatt, Theo Stucky de Quay, Yuhan Liu, Tim Evans, Orfhlaith McCullough, Nathalie K. Fernando, Curran Kalha, Robert G. Palgrave, Anna Regoutz   +8 more
wiley   +1 more source

Far-Ultraviolet Cooling Features of the Antlia Supernova Remnant

, 2007
We present far-ultraviolet observations of the Antlia supernova remnant obtained with Far-ultraviolet IMaging Spectrograph (FIMS, also called SPEAR). The strongest lines observed are C IV 1548,1551 and C III 977.
Edelstein, Jerry, Han, Wonyong, Kim, Il-Joong, Korpela, Eric J., Min, Kyoung Wook, Nam, Uk-Won, Park, Jang-Hyun, Ryu, Kwang-Sun, Sankrit, Ravi, Shinn, Jong-Ho   +9 more
core   +1 more source

OBSERVATIONS OF THE YOUNG SUPERNOVA REMNANT RX J1713.7−3946 WITH THE FERMI LARGE AREA TELESCOPE [PDF]

, 2011
We present observations of the young supernova remnant (SNR) RX J1713.7−3946 with the Fermi Large Area Telescope (LAT). We clearly detect a source positionally coincident with the SNR.
A. Abdo, A. Abdo, M. Ackermann, M. Ajello, A. Allafort, L. Baldini, J. Ballet, G. Barbiellini, G. Barbiellini, M. Baring, D. Bastieri, D. Bastieri, R. Bellazzini, B. Berenji, R. Blandford, E. Bloom, E. Bonamente, E. Bonamente, A. Borgland, A. Bouvier, T. Brandt, J. Bregeon, M. Brigida, M. Brigida, P. Bruel, R. Buehler, S. Buson, S. Buson, G. Caliandro, R. Cameron, P. Caraveo, J. Casandjian, C. Cecchi, C. Cecchi, S. Chaty, A. Chekhtman, C. C. Cheung, C. C. Cheung, J. Chiang, A. Cillis, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, J. Conrad, S. Corbel, S. Cutini, A. Angelis, F. Palma, F. Palma, C. Dermer, S. Digel, E. Silva, P. Drell, A. Drlica-Wagner, R. Dubois, D. Dumora, C. Favuzzi, C. Favuzzi, E. Ferrara, P. Fortin, M. Frailis, Y. Fukazawa, Y. Fukui, S. Funk, P. Fusco, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, S. Germani, N. Giglietto, N. Giglietto, F. Giordano, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, I. Grenier, M. Grondin, S. Guiriec, D. Hadasch, Y. Hanabata, A. Harding, M. Hayashida, K. Hayashi, E. Hays, D. Horan, M. Jackson, G. Jóhannesson, A. Johnson, T. Kamae, H. Katagiri, J. Kataoka, M. Kerr, J. Knödlseder, M. Kuss, J. Lande, L. Latronico, Sooheyong Lee, M. Lemoine-Goumard, F. Longo, F. Longo, F. Loparco, F. Loparco, M. Lovellette, P. Lubrano, P. Lubrano, G. Madejski, A. Makeev, M. Mazziotta, J. Mcenery, J. Mcenery, P. Michelson, R. Mignani, W. Mitthumsiri, T. Mizuno, A. Moiseev, A. Moiseev, C. Monte, C. Monte, M. Monzani, A. Morselli, I. Moskalenko, S. Murgia, M. Naumann-Godo, P. Nolan, J. Norris, É. Nuss, T. Ohsugi, A. Okumura, E. Orlando, J. Ormes, D. Paneque, D. Paneque, D. Parent, V. Pelassa, M. Pesce-Rollins, M. Pierbattista, F. Piron, M. Pohl, T. Porter, S. Rainò, S. Rainò, R. Rando, R. Rando, M. Razzano, O. Reimer, T. Reposeur, S. Ritz, R. Romani, M. Roth, H. Sadrozinski, P. Parkinson, C. Sgro’, D. Smith, P. Smith, G. Spandre, P. Spinelli, P. Spinelli, M. Strickman, H. Tajima, H. Takahashi, Tadayuki Takahashi, Takaaki Tanaka, J. Thayer, J. Thayer, D. Thompson, L. Tibaldo, O. Tibolla, D. Torres, G. Tosti, G. Tosti, A. Tramacere, E. Troja, Y. Uchiyama, J. Vandenbroucke, V. Vasileiou, G. Vianello, N. Vilchez, V. Vitale, A. Waite, Pengfei Wang, B. Winer, K. Wood, H. Yamamoto, R. Yamazaki, Zhirong Yang, M. Ziegler   +189 more
semanticscholar   +1 more source

Engineering a Stable Solid–Electrolyte Interphase through a Novel Trifluoromethyl‐Free Lithium Salt for Lithium Metal Polymer Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The motivation behind the development of the new lithium salt LiDFFSI is to combine the advantages of both LiFSI and LiDFSI salts. LiDFFSI offers high ionic conductivity and enhanced compatibility with aluminum current collectors. Additionally, it promotes the formation of a conductive SEI layer rich in LiF and LiH, which contributes to an extended ...
Lorena García, David Fraile‐Insagurbe, Izaskun Serna, Itziar Aldalur, Leire Meabe, Mikel Arrese‐Igor, Rosalía Cid, Julen Etxabe, Michel Armand, Maria Martinez‐Ibañez   +9 more
wiley   +1 more source