Results 81 to 90 of about 200,313 (264)

Simple method of diagnosing fast flavor conversions of supernova neutrinos [PDF]

Physical Review D, 2018
Neutrinos emitted from a supernova may undergo flavor conversions almost immediately above the core, with possible consequences for supernova dynamics and nucleosynthesis.
B. Dasgupta, A. Mirizzi, M. Sen
semanticscholar   +1 more source

Trigonal Bipyramidal Clusters [Tl5]7−: Synthesis and Characterization of the Zintl Phase K7−xAxTl5 (A = Rb, Cs; 0 < x ≤ 2.35)

Chemistry – A European Journal, EarlyView.
Mixed alkali metals, potassium and additional rubidium or cesium, allow for the synthesis of a straightforward, electron‐precise Zintl phase K7−xAxTl5. The new phase is characterized by SCXRD, PXRD, and DFT. Its metastability is proven by DSC measurements.
Vanessa F. Schwinghammer, Tomáš Kovářík, Ilya G. Shenderovich, Ján Minár, Stefanie Gärtner   +4 more
wiley   +1 more source

Star Formation as Seen by Low Mass Stars

Acta Polytechnica CTU Proceedings, 2014
Using the Hubble Space Telescope (HST) we have characterised and compared the physical properties of a large sample of pre-main sequence (PMS) stars spanning a wide range of masses (0:5 - 4Mʘ), metallicities (0:1 - 1 Zʘ) and ages (0:5 - 30 Myr).
Nino Panagia, Guido De Marchi
doaj   +1 more source

Observational data on galactic supernova remnants: I. The supernova remnants within l = 0◦ - 90◦ [PDF]

Serbian Astronomical Journal, 2003
We have collected all the available data on Galactic supernova remnants given in the literature. The data on Galactic supernova remnants located in the Galactic longitude interval l=0◦-90◦ in all the spectral bands are presented in this work.
Guseinov O.H., Ankaj A., Tagieva S.O.
doaj   +1 more source

A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data

, 2012
Consistency between Carnegie Supernova Project (CSP) and SDSS-II supernova (SN) survey ugri measurements has been evaluated by comparing SDSS and CSP photometry for nine spectroscopically confirmed Type Ia supernova observed contemporaneously by both ...
Abazajian, Aihara, Aldering, Amanullah, Blondin, Cappellaro, Conley, Contreras, Cooke, D'Andrea, D. P. Schneider, Doi, Ellis, Folatelli, Foley, Foley, Foley, Foley, Freedman, Frieman, G. Folatelli, Ganeshalingam, Gunn, Gunn, Gupta, Hamuy, Hicken, Hoeflich, Hogg, Holtzman, Hsiao, Ivezić, J. Frieman, J. Holtzman, J. Marriner, J. Mosher, Kasen, Kasen, Kelly, Kessler, Kowalski, Krisciunas, L. Corlies, Lampeitl, Lentz, Leonard, Lupton, M. M. Phillips, M. Sako, M. Stritzinger, Mazzali, N. Morrell, Patat, Perlmutter, Pier, Prieto, Quimby, R. Kessler, Riess, Riess, Riess, S. W. Jha, Sako, Schlegel, Smith, Stoughton, Stritzinger, Stritzinger, Sullivan, Suntzeff, Timmes, Tonry, Wang, Wood-Vasey, York   +74 more
core   +1 more source

How high energy fluxes may affect Rayleigh–Taylor instability growth in young supernova remnants

Nature Communications, 2018
Energy-transport effects can alter the structure that develops as a supernova evolves into a supernova remnant. The Rayleigh–Taylor instability is thought to produce structure at the interface between the stellar ejecta and the circumstellar matter ...
C. Kuranz, H. Park, C. Huntington, A. Miles, B. Remington, T. Plewa, M. Trantham, H. Robey, D. Shvarts, A. Shimony, K. Raman, S. Maclaren, W. Wan, W. Wan, F. Doss, J. Kline, K. Flippo, G. Malamud, T. Handy, S. Prisbrey, C. Krauland, S. Klein, E. Harding, R. Wallace, M. Grosskopf, D. Marion, D. Kalantar, E. Giraldez, R. P. Drake   +28 more
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

Supernova Educator's Guide [PDF]

, 2008
This educator’s guide features three curriculum enhancement activities and one scientific literacy activity, extensive background information, assessment rubrics, student worksheets, extension and transfer activities, and detailed information about the ...

core  

Quark nova imprint in the extreme supernova explosion SN 2006gy

, 2012
The extremely luminous supernova 2006gy (SN 2006gy) is among the most energetic ever observed. The peak brightness was 100 times that of a typical supernova and it spent an unheard of 250 days at magnitude -19 or brighter.
Agnoletto, Bodmer, Chatzopoulos, D. A. Leahy, Drake, Dwarkadas, Gal-Yam, Gezari, Heger, Itoh, Jaikumar, Keränen, Leahy, M. Kostka, Mihalas, Miller, Miller, N. Koning, Niebergal, Ofek, Ouyed, Ouyed, Ouyed, Ouyed, Quimby, R. Ouyed, Rest, Smith, Smith, Staff, Steffen, Umeda, Vogt, W. Steffen, Witten, Woosley, Yungelson   +36 more
core   +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