Results 51 to 60 of about 5,865 (191)

Bow-shock Pulsar Wind Nebulae Passing Through Density Discontinuities

, 2016
Bow-shock pulsar wind nebulae are a subset of pulsar wind nebulae that form when the pulsar has high velocity due to the natal kick during the supernova explosion.
Heinz, Sebastian, Yoon, Doosoo
core   +1 more source

The Observer’s Guide to the Gamma‐Ray Burst Supernova Connection

Advances in Astronomy, Volume 2017, Issue 1, 2017., 2017
We present a detailed report of the connection between long‐duration gamma‐ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained what we know about GRB‐SNe.
Zach Cano, Shan-Qin Wang, Zi-Gao Dai, Xue-Feng Wu, Josep M. Trigo-Rodríguez   +4 more
wiley   +1 more source

Diverse Features of the Multiwavelength Afterglows of Gamma‐Ray Bursts: Natural or Special?

Advances in Astronomy, Volume 2016, Issue 1, 2016., 2016
The detection of optical rebrightenings and X‐ray plateaus in the afterglows of gamma‐ray bursts (GRBs) challenges the generic external shock model. Recently, we have developed a numerical method to calculate the dynamics of the system consisting of a forward shock and a reverse shock.
J. J. Geng, Y. F. Huang, WeiKang Zheng
wiley   +1 more source

PARTICLE TRANSPORT IN YOUNG PULSAR WIND NEBULAE [PDF]

The Astrophysical Journal, 2012
13 pages, ApJ, in press, corrected ...
Tang, Xiaping, Chevalier, Roger A.
openaire   +2 more sources

X‐Ray Pulsar Profile Recovery Based on Tracking‐Differentiator

Mathematical Problems in Engineering, Volume 2016, Issue 1, 2016., 2016
The profile recovery is an important work in X‐ray pulsar‐based navigation. It is a key step for the analysis on the pulsar signal’s characteristic and the computing of time of arrival (TOA). This paper makes an argument for an algorithm based on the tracking‐differentiator (TD) to recover the profile from the low Signal‐to‐Noise Ratio (SNR) signals ...
Dapeng Zhang, Wei Zheng, Yidi Wang, Lu Zhang, Yuming Qin   +4 more
wiley   +1 more source

Neutral Atmospheric Density Measurement Using Insight-HXMT Data by the Earth Occultation Technique

The Astrophysical Journal Supplement Series, 2022
The Earth occultation technique has broad applications in both astronomy and atmospheric density measurements. We construct the background model during the occultation of the Crab Nebula observed by the Insight-Hard X-ray Modulation Telescope (Insight ...
Wang-Chen Xue, Xiao-Bo Li, Shao-Lin Xiong, Yong Chen, Shuang-Nan Zhang, Li-Ming Song, Shu Zhang, Ming-Yu Ge, You-Li Tuo, Hai-Tao Li, Dao-Chun Yu, Dong-Ya Guo, Jia-Cong Liu, Yan-Qiu Zhang, Chao Zheng   +14 more
doaj   +1 more source

A Dynamical Model for the Evolution of a Pulsar Wind Nebula inside a Non-Radiative Supernova Remnant

, 2009
A pulsar wind nebula inside a supernova remnant provides a unique insight into the properties of the central neutron star, the relativistic wind powered by its loss of rotational energy, its progenitor supernova, and the surrounding environment.
Aharonian, Aharonian, Arons, Bandiera, Blondin, Blondin, Büsching, Chandrasekhar, Chevalier, Chevalier, Frail, Gelfand, Green, Joseph D. Gelfand, Jun, Kaplan, Kothes, LaMassa, Malyshev, Milne, Mori, Pacholczyk, Patrick O. Slane, Rees, Rybicki, Sedov, Sefako, Shapiro, Slane, Slane, Spitkovsky, Stone, Temim, Temim, Truelove, van der Swaluw, Venter, Weiqun Zhang, Weisskopf, Woltjer   +39 more
core   +1 more source

Astronomical Signatures of Dark Matter

Advances in High Energy Physics, Volume 2014, Issue 1, 2014., 2014
Several independent astronomical observations in different wavelength bands reveal the existence of much larger quantities of matter than what we would deduce from assuming a solar mass to light ratio. They are very high velocities of individual galaxies within clusters of galaxies, higher than expected rotation rates of stars in the outer regions of ...
Paul Gorenstein, Wallace Tucker, Anselmo Meregaglia   +2 more
wiley   +1 more source

Multi-D magnetohydrodynamic modelling of pulsar wind nebulae: recent progress and open questions [PDF]

, 2016
In the last decade, the relativistic magnetohydrodynamic (MHD) modelling of pulsar wind nebulae, and of the Crab nebula in particular, has been highly successful, with many of the observed dynamical and emission properties reproduced down to the finest ...
Amato, E., Bucciantini, N., Del Zanna, L., Mignone, A., Olmi, B.   +4 more
core   +3 more sources

Multimessengers from Core‐Collapse Supernovae: Multidimensionality as a Key to Bridge Theory and Observation

Advances in Astronomy, Volume 2012, Issue 1, 2012., 2012
Core‐collapse supernovae are dramatic explosions marking the catastrophic end of massive stars. The only means to get direct information about the supernova engine is from observations of neutrinos emitted by the forming neutron star, and through gravitational waves which are produced when the hydrodynamic flow or the neutrino flux is not perfectly ...
Kei Kotake, Tomoya Takiwaki, Yudai Suwa, Wakana Iwakami Nakano, Shio Kawagoe, Youhei Masada, Shin-ichiro Fujimoto, Andrew Fruchter   +7 more
wiley   +1 more source