搜索结果: 1-15 共查到“天体物理学 transition”相关记录21条 . 查询时间(0.125 秒)
Transition Radiation from the Neutrino-Photon Interaction in Matter
Transition Radiation the Neutrino-Photon Interaction Matter
2012/2/23
We show that, because of their effective electromagnetic interaction in matter, transition radiation is emitted whenever neutrinos goes across the boundary between two media with different indices of ...
Spectro-timing analysis of Cygnus X-1 during a fast state transition
X-rays: binaries, X-rays: individual: CygX-1
2011/10/19
We present the analysis of two long, quasi-uninterrupted RXTE observations of Cygnus X-1 that span several days within a 10 d interval. The spectral characteristics during this observation cover the r...
Curvature perturbation spectra from waterfall transition, black hole constraints and non-Gaussianity
waterfall transition black hole constraints non-Gaussianity
2011/10/11
We carried out numerical calculations of a contribution of the waterfall field to the primordial curvature perturbation (on uniform density hypersurfaces) $\zeta$, which is produced during waterfall t...
Surface tension in the cold and dense chiral transition and astrophysical applications
Surface tension old chiral transition astrophysical applications
2011/10/18
The surface tension of cold and dense QCD phase transitions has appeared recently as a key ingredient in different astrophysical scenarios, ranging from core-colapse supernovae explosions to compact s...
Curvature Perturbations and non-Gaussianities from Waterfall Phase Transition during Inflation
Curvature Perturbations non-Gaussianities
2011/1/13
We consider a variant of hybrid inflation where the waterfall phase transition happens during inflation. By adjusting the parameters associated with the mass of the waterfall field, we arrange that t...
Imprints of the QCD Phase Transition on the Spectrum of Gravitational Waves
the QCD Phase Transition the Spectrum
2011/1/10
We have investigated effects of the QCD phase transition on the relic GW spectrum applying several equations of state for the strongly interacting matter: Besides the bag model, which describes a firs...
The Transition from "Normal" to "Broad Absorption Line Quasar" of Ton 34
Normal Broad Absorption Line Quasar
2011/1/10
We report the emergence of a high velocity, broad absorption line outflow in the luminous quasar Ton 34, at z=1.928. The outflow is detected through an ultraviolet CIV broad absorption line, in a spec...
Pasta Structures of Quark-Hadron Phase Transition in Proto-Neutron Stars
Pasta Structures Quark-Hadron Phase Transition
2011/1/11
We study the quark-hadron mixed phase in proto-neutron stars with the finite-size effects. In the calculations of pasta structures appeared in the mixed phase, the Gibbs conditions require the pressur...
Using the magnetohydrodynamic (MHD) description, we develop a nonlinear dynamo model that couples the evolution of the large scale magnetic field with turbulent dynamics of the plasma at small scale b...
The revival of an explosion mechanism of massive stars - the quark hadron phase transition during the early post bounce phase of core collapse supernovae
Core collapse supernovae protoneutron stars general relativity radiation hydrodynamics
2010/11/16
We explore explosions of massive stars, which are triggered via the quark hadron phase transition during the early post bounce phase of core collapse supernovae. The onset of quark matter is favored u...
Hubble Space Telescope Imaging and Spectral Analysis of Two Brown Dwarf Binaries at the L Dwarf/T Dwarf Transition
binaries visual — stars individual stars
2010/11/10
We present a detailed examination of the brown dwarf multiples 2MASS J08503593+1057156 and
2MASS J17281150+3948593, both suspected of harboring components that straddle the L dwarf/T
dwarf transitio...
Sigmoid-to-Flux-Rope Transition Leading to A Loop-Like Coronal Mass Ejection
Sun flares—Sun Coronal mass ejections (CMEs)—Sun filaments prominences
2010/11/11
Sigmoids are one of the most important precursor structures for solar eruptions.In this Letter, we study a sigmoid eruption on 2010 August 1 with EUV data obtained by the Atmospheric Imaging Assembly ...
Phase transition to the state with nonzero average helicity in dense neutron matter
Phase transition nonzero average dense neutron matter
2010/11/16
The possibility of the appearance of the states with a nonzero average helicity in neutron matter is studied in the model with the Skyrme effective interaction. By providing the analysis of the selfco...
Probing the Transition Between the Synchrotron and Inverse-compton Spectral Components of 1ES 1959+650
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
1ES 1959+650 is one of the most remarkable high-peaked BL Lacertae objects (HBL). In 2002, it exhibited a TeV gamma-ray flare without a similar brightening of the synchrotron component at lower energi...
A Change of Rotation Profile in the Envelope in the HH 111 Protostellar System: A Transition to a Disk?
Galaxy Astrophysics (astro-ph.GA)
2010/12/27
The HH 111 protostellar system consists of two Class I sources (VLA 1 and 2) with putative disks deeply embedded in a flattened envelope at a distance of 400 pc.