Results 111 to 120 of about 1,255,451 (193)

A Unified Model for Shock Interaction and γ-Ray Emission in Classical Novae

The Astrophysical Journal
We present a parameterized (“toy”) model for shock interaction and γ -ray emission in classical novae, in which a white dwarf envelope of mass M _env is removed over a timescale τ (proportional to the nova speed class, t _2 ) in an outflow that ...
Rebecca Diesing, Brian D. Metzger
doaj   +1 more source

Extragalactic Classical Nova Surveys

, 2008
We are currently involved in a multifaceted campaign to study extragalactic classical novae in the Local Group and beyond. Here we report on-going results from the exploitation of the POINT-AGAPE M31 dataset; initial results from our Local Group imaging, and spectroscopic CNe follow-up campaign and introduce the Liverpool Extragalactic Nova Survey.
Darnley, M. J., Black, D. T. R., Bode, M. F., Newsam, A. M., Kerins, E., O'Brien, T. J., Misselt, K., Shafter, A. W.   +7 more
openaire   +2 more sources

Low-metallicity Nova Explosions: A Site for Weak rp-process Nucleosynthesis

The Astrophysical Journal
Classical novae are common cataclysmic events involving a binary system of a white dwarf and a main-sequence or red giant companion star. In metal-poor environments, these explosions produce ejecta differently from their solar counterparts due to the ...
Athanasios Psaltis, Jordi José, Richard Longland, Christian Iliadis   +3 more
doaj   +1 more source

Phylogeny, Global Biogeography and Pleomorphism of Zanclospora. [PDF]

Microorganisms, 2021
Réblová M, Kolařík M, Nekvindová J, Miller AN, Hernández-Restrepo M.   +4 more
europepmc   +1 more source

UV turn–off times of classical novae

, 1998
We present IUE spectra of classical novae obtained at least one year after the outburst. The UV luminosities are compared with the ROSAT  observations and significant parameters of the systems.
R. González–Riestra, J. Gallagher, M. Orio   +2 more
core   +1 more source

Calcium Excess in Novae: Beyond Nuclear Physics Uncertainties

The Astrophysical Journal
We examine Ca abundances in classical novae from spectroscopic observations spanning 65 yr and investigate whether they are systematically high compared to those predicted by nova models.
Mallory K. Loria, Pavel A. Denissenkov, Chris Ruiz, Falk Herwig, (CaNPAN Collaboration, NuGrid Collaboration)   +4 more
doaj   +1 more source

A Shocking Shift in Paradigm for Classical Novae

, 2019
The discovery of GeV gamma-rays from classical novae has led to a reassessment of these garden-variety explosions, and highlighted their importance for understanding radiative shocks, particle acceleration, and dust formation in more exotic, distant ...
Linford, Justin, Chomiuk, Laura, Derdzinski, Andrea, Aydi, Elias, Rupen, Michael P., Steinberg, Elad, Metzger, Brian D., Kawash, Adam, Mukai, Koji, Sokoloski, Jennifer, Li, Kwan-Lok, Sokolovsky, Kirill, Babul, Aliya-Nur   +12 more
core   +1 more source

Classical novae as WET objects

Open Astronomy, 1995
Leibowitz E. M., Mendelson H., Gefen G., Retter A.   +3 more
doaj   +1 more source

Fundamental Properties of Novae in M31

The Astrophysical Journal Supplement Series
The peak luminosities and rates of decline for a large sample of novae recently published by Clark et al. have been analyzed using the Yaron et al. nova models to estimate fundamental properties of the M31 nova population.
Allen W. Shafter, Kamil Hornoch
doaj   +1 more source

Implant survival of 662 dual-mobility cups and 727 constrained liners in primary THA: small femoral head size increases the cumulative incidence of revision. [PDF]

Acta Orthop, 2021
Pakarinen O, Lainiala O, Reito A, Neuvonen P, Mäkelä K, Eskelinen A.   +5 more
europepmc   +1 more source