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On the Terrestrial Gamma Ray Flashes Preceding Narrow Bipolar Events 期刊论文 OAI收割
Geophysical Research Letters, 2021, 卷号: 48, 页码: e92160
作者: HXMT

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low frequency magnetic sferics narrow bipolar events (NBEs) relativistic feedback mechanism Terrestrial Gamma ray Flashes (TGFs) Abstract: Narrow bipolar events (NBEs) are occasionally reported to occur within a few ms after Terrestrial Gamma ray Flashes (TGFs), while the formation mechanism remains mysterious partially due to the lack of sufficient observations. Here, nine more TGFs of this scenario are reported with concurrent LF sferics and lightning location data. The gamma ray production in these TGFs preceded the occurrence of NBEs by a minimum of 60 µs up to 13.5 ms, and no other fast leader discharge was found within 20 ms before the TGF. The TGF preceded positive NBEs occurred at altitudes of 8.6-11 km in thunderstorms, likely in the high electric field (E field) region of lightning initiation. The analyses show that the NBE preceding TGFs bear harder energy spectrum with larger proportion of high energy photons than EIP related TGFs produced in association with lightning leader. Our findings support the relativistic feedback mechanism of gamma ray generation in the large scale thunderstorm E field.

Verification of Radiative Transfer Schemes for the EHT 期刊论文 OAI收割
The Astrophysical Journal, 2020, 卷号: 897, 期号: 2, 页码: 21
作者: Gold, Roman; Broderick, Avery E.; Younsi, Ziri; Fromm, Christian M.; Gammie, Charles F.

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black hole physics High energy astrophysics Radiative transfer Relativity General relativity Relativistic disks Very long baseline interferometry Radio astronomy Event horizons

No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文 OAI收割
Nature, 2020, 卷号: 587, 页码: 63-65
作者: HXMT

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Astrophysics - High Energy Astrophysical Phenomena Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances^1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources^4-13, but no convincing evidence has been collected so far¹⁴. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts¹⁵. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare^18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.

Relativistic HPIC-LBM and its application in large temporal-spatial turbulent magnetic reconnection. Part II. Role of turbulence in the flux rope interaction 期刊论文 OAI收割
Applied Mathematical Modelling, 2019
作者: Zhu BJ(朱伯靖); Yan, Hui; Zhong, Ying; Chen, Jingkun; Du, Yunfei

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Relativistic Hpic-lbm 3d Ltstmr Oblique Instability Turbulent Acceleration Mechanism Slipping Magnetic Reconnection (1 St Type Mr) Magnetic Field Line Break-rejoin Magnetic Reconnection (2nd Type Mr) Magnetic Energy Conversion

Event-Shape Engineering for the D-meson elliptic flow in mid-central Pb-Pb collisions at sNN=5.02 TeV 期刊论文 OAI收割
JOURNAL OF HIGH ENERGY PHYSICS, 2019, 期号: 2, 页码: —
作者: Acharya, S; Acosta, FT; Adamova, D; Adler, A; Adolfsson, J

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收藏 | 浏览/下载：68/0 | 提交时间：2019/12/30

RELATIVISTIC NUCLEAR COLLISIONS HEAVY-ION COLLISIONS FLAVOR HADRON DECAYS QUARK COALESCENCE ANISOTROPIC FLOW ENERGY-LOSS CHARM

THE RELATIVISTIC VLASOV-MAXWELL-BOLTZMANN SYSTEM FOR SHORT RANGE INTERACTION 期刊论文 OAI收割
KINETIC AND RELATED MODELS, 2016, 卷号: 9, 期号: 3, 页码: 515-550
作者: Liu, Shuangqian; Xiao, Qinghua

收藏 | 浏览/下载：38/0 | 提交时间：2016/07/12

Relativistic Vlasov-Maxwell-Boltzmann system large time stability coercivity time-velocity weighted energy method optimal temporal decay

The Electron Fraction and the Fermi Energy of Relativistic Electrons in a Neutron Star 期刊论文 OAI收割
Publications of The Korean Astronomical Society, 2015, 卷号: 30, 页码: 569-572
作者: Li, X. D.; Wang, N.; Peng, Q. H.; Gao, Z. F.

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收藏 | 浏览/下载：20/0 | 提交时间：2017/06/11

Neutron Star Weak-magnetic Field Approximation Generate And Relativistic Electrons Electron Fermi Energy

The evaporation residue in the fission state of barium nuclei within relativistic mean-field theory 期刊论文 OAI收割
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2015, 卷号: 42, 期号: 1, 页码: 15105
作者: Bhuyan, M; Patra, SK; Gupta, RK

收藏 | 浏览/下载：21/0 | 提交时间：2016/11/21

relativistic mean field theory binding energy potential energy surface nuclear fission state

On the possible mechanism of the first ground level enhancement in cosmic ray intensity of solar cycle 24 期刊论文 OAI收割
ASTROPHYSICS AND SPACE SCIENCE, 2014, 卷号: 350, 期号: 1, 页码: 21-32
作者: Firoz, Kazi A.; Gan, W. Q.; Li, Y. P.; Rodriguez-Pacheco, J.

收藏 | 浏览/下载：25/0 | 提交时间：2014/11/20

Cosmic rays Ground level enhancement Solar flare CME-driven shock Solar radio burst Solar flux density Relativistic energy Particle release time

Breaking the EOS-gravity degeneracy with masses and pulsating frequencies of neutron stars 期刊论文 OAI收割
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2014, 卷号: 41, 期号: 7
Lin, WK; Li, BA; Chen, LW; Wen, DH; Xu, J

收藏 | 浏览/下载：29/0 | 提交时间：2015/03/13

RELATIVISTIC STELLAR MODELS EQUATION-OF-STATE NUCLEAR SYMMETRY ENERGY NON-RADIAL PULSATION HEAVY-ION REACTIONS INVERSE-SQUARE LAW NONRADIAL PULSATION GRAVITATIONAL-WAVES ANALYTIC ANALYSIS DARK-MATTER