Results 41 to 50 of about 77,144 (213)

The Type II-P Supernova 2017eaw: From Explosion to the Nebular Phase [PDF]

Astrophysical Journal, 2019
The nearby SN 2017eaw is a Type II-P (“plateau”) supernova (SN) showing early-time, moderate CSM interaction. We present a comprehensive study of this SN, including the analysis of high-quality optical photometry and spectroscopy covering the very early ...
T. Szalai, T. Szalai, J. Vinkó, J. Vinkó, J. Vinkó, R. Könyves-Tóth, A. Nagy, A. Nagy, K. Bostroem, K. S'arneczky, P. Brown, O. Pejcha, A. Bódi, B. Cseh, G. Csörnyei, Z. Dencs, O. Hanyecz, B. Ign'acz, Cs. Kalup, L. Kriskovics, A. Ordasi, A. P'al, B. Seli, Á. Sódor, R. Szakáts, K. Vida, G. Zsidi, Konkoly team, I. Arcavi, C. Ashall, C. Ashall, J. Burke, J. Burke, L. Galbany, D. Hiramatsu, D. Hiramatsu, G. Hosseinzadeh, G. Hosseinzadeh, G. Hosseinzadeh, E. Hsiao, D. Howell, D. Howell, C. McCully, C. McCully, S. Moran, J. Rho, D. Sand, M. Shahbandeh, S. Valenti, Xiaofeng Wang, J. Wheeler, Global Supernova   +51 more
semanticscholar   +1 more source

A hot and fast ultra-stripped supernova that likely formed a compact neutron star binary [PDF]

Science, 2018
Explosive origin of a binary neutron star Some types of core-collapse supernovae are known to produce a neutron star (NS). A binary NS merger was recently detected from its gravitational wave emission, but it is unclear how such a tight binary system can
K. De, M. Kasliwal, E. Ofek, T. J. Moriya, Jamison Burke, Jamison Burke, Yi Cao, S. B. Cenko, S. B. Cenko, G. Doran, G. Duggan, Rob Fender, C. Fransson, A. Gal-yam, A. Horesh, S. Kulkarni, R. Laher, R. Lunnan, I. Manulis, F. Masci, P. Mazzali, P. Mazzali, P. Nugent, P. Nugent, D. Perley, T. Petrushevska, T. Petrushevska, A. Piro, C. Rumsey, J. Sollerman, Mark Sullivan, F. Taddia   +31 more
semanticscholar   +1 more source

Improved Cosmological Constraints from New, Old, and Combined Supernova Data Sets [PDF]

, 2008
We present a new compilation of Type Ia supernovae (SNe Ia), a new data set of low-redshift nearby-Hubble-flow SNe, and new analysis procedures to work with these heterogeneous compilations.
M. Kowalski, David Rubin, David Rubin, G. Aldering, R. Agostinho, A. Amadon, R. Amanullah, C. Balland, K. Barbary, K. Barbary, G. Blanc, P. Challis, A. Conley, N. Connolly, R. Covarrubias, K. Dawson, S. Deustua, R. Ellis, S. Fabbro, V. Fadeyev, Xiaohui Fan, B. Farris, G. Folatelli, B. Frye, G. Garavini, E. Gates, G. Goldhaber, G. Goldhaber, B. Goldman, A. Goobar, D. Groom, J. Haissinski, D. Hardin, I. Hook, S. Kent, A. Kim, R. Knop, C. Lidman, E. Linder, J. Méndez, J. Meyers, J. Meyers, G. J. Miller, M. Moniez, A. Mourão, H. Newberg, S. Nobili, P. Nugent, R. Pain, O. Perdereau, S. Perlmutter, S. Perlmutter, M. Phillips, V. Prasad, R. Quimby, N. Regnault, J. Rich, E. Rubenstein, P. Ruiz-Lapuente, F. D. Santos, B. Schaefer, R. Schommer, R. C. Smith, A. Soderberg, A. Spadafora, L. Strolger, M. Strovink, M. Strovink, N. Suntzeff, N. Suzuki, R. Thomas, N. Walton, Lianqi Wang, W. Wood-Vasey, J. Yun   +74 more
semanticscholar   +1 more source

Collisional Triggering of Fast Flavor Conversions of Supernova Neutrinos. [PDF]

Physical Review Letters, 2018
Fast flavor conversions of supernova neutrinos, possible near the neutrinosphere, depends on an interesting interplay of collisions and neutrino oscillations. Contrary to naïve expectations, the rate of self-induced neutrino oscillations, due to neutrino-
F. Capozzi, B. Dasgupta, A. Mirizzi, M. Sen, G. Sigl   +4 more
semanticscholar   +1 more source

Variable G versus the Accelerated Expansion of the Universe

Open Astronomy, 2017
It is shown that the hypothesis of permitting variability of the Newtonian constant G, increasing with the local density of dark matter, implies that there is no need for the introduction of a cosmological constant or accelerated expansion of the ...
Colenbrander Bernard G., Hulscher Willem S.   +1 more
doaj   +1 more source

Observing Supernova Neutrino Light Curves with Super-Kamiokande. IV. Development of SPECIAL BLEND: A New Public Analysis Code for Supernova Neutrinos

The Astrophysical Journal, 2023
Supernova neutrinos are invaluable signals that offer information about the interior of supernovae. Because a nearby supernova can occur at any time, preparing for future supernova neutrino observation is an urgent task.
Akira Harada, Yudai Suwa, Masayuki Harada, Yusuke Koshio, Masamitsu Mori, Fumi Nakanishi, Ken’ichiro Nakazato, Kohsuke Sumiyoshi, Roger A. Wendell   +8 more
doaj   +1 more source

Assessing the Performance of the Phase Difference Bathymetric Sonar Depth Uncertainty Prediction Model

Remote Sensing, 2022
Realistic predictions of the contribution of the uncertainty sources affecting the quality of the bathymetric measurements prior to a survey is of importance. To this end, models predicting these contributions have been developed.
Tannaz H. Mohammadloo, Matt Geen, Jitendra S. Sewada, Mirjam Snellen, Dick G. Simons   +4 more
doaj   +1 more source

Evaluation of Sealing Strength in Multilayer LLDPE Packaging for Impact-Resistant Rice Pouches

Jurnal Kimia Sains dan Aplikasi
In this study, we evaluate the mechanical integrity, thermal stability, and impact resilience of three different laminated polymer materials—PA/LLDPE, MDO-PE/LLDPE, and BOPE/LLDPE—to assess their suitability for rice packaging applications.
Bayu Krisnamurti, Henny Irawati, Mas Ayu Elita Hafizah, Azwar Manaf   +3 more
doaj   +1 more source

Ghost particles in the universe: Neutrinos in astrophysics and cosmology

Mètode Science Studies Journal: Annual Review, 2017
  Neutrinos are nearly massless and very difficult to detect because they interact so very weakly. Sixty years after seeing the first of these «ghost particles» we know a lot about their properties.
Georg Gottfried Raffelt
doaj   +1 more source

Significance of neutrino-neutrino interaction in neutrino oscillation in core-collapse supernova

Bibechana, 2014
We study the possibility of neutrino-neutrino interaction inside the neutrino core of supernova (ρ ≥ 1010 g/cc) and outside the neutrinosphere. The angular dependence of the neutrino-neutrino interaction Hamiltonian causes multi-angle effects that can ...
Prabandha Nakarmi, Jeevan Jyoti Nakarmi
doaj   +3 more sources