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We model the hydrodynamic interaction of a shock wave of an evolved supernova remnant with a small interstellar gas cloud like the ones observed in the Cygnus loop and in the Vela SNR. We investigate the interplay between radiative cooling…

Astrophysics · Physics 2009-11-11 S. Orlando , G. Peres , F. Reale , F. Bocchino , R. Rosner , T. Plewa , A. Siegel

X-ray emitting features originating from the interaction of supernova shock waves with small interstellar gas clouds are revealed in many X-ray observations of evolved supernova remnants (e.g. Cygnus Loop and Vela), but their interpretation…

High Energy Astrophysical Phenomena · Physics 2015-05-18 S. Orlando , F. Bocchino , M. Miceli , X. Zhou , F. Reale , G. Peres

The mixed morphology class of supernova remnants has centrally peaked X-ray emission along with a shell-like morphology in radio emission. White & Long proposed that these remnants are evolving in a cloudy medium wherein the clouds are…

High Energy Astrophysical Phenomena · Physics 2017-09-13 Jonathan D. Slavin , Randall K. Smith , Adam Foster , Henry D. Winter , John C. Raymond , Patrick O. Slane , Hiroya Yamaguchi

The X-ray emission from the circumstellar interaction in Type II supernovae with a dense circumstellar medium is calculated. In Type IIL and Type IIn supernovae mass loss rates are generally high enough for the region behind the reverse…

Astrophysics · Physics 2009-11-11 Tanja K. Nymark , Claes Fransson , Cecilia Kozma

In the framework of the study of the X-ray and optical emission in supernova remnants we focus on an isolated X-ray knot in the northern rim of the Vela SNR (Vela FilD), whose X-ray emission has been studied and discussed in Paper I. We aim…

Astrophysics · Physics 2009-11-11 M. Miceli , F. Reale , S. Orlando , F. Bocchino

We investigate the evolution of supernova remnants (SNRs) in a two-phase cloudy medium by performing a series of high-resolution (up to $\Delta x\approx0.01\,\mathrm{pc}$), 3D hydrodynamical simulations including radiative cooling and…

Astrophysics of Galaxies · Physics 2024-11-21 Minghao Guo , Chang-Goo Kim , James M. Stone

In this paper we present high-resolution hydrodynamical models of warm ionized clouds embedded in a superwind, and compare the OVI and soft X-ray properties to the existing observational data. These models include thermal conduction, which…

Astrophysics · Physics 2009-11-13 A. Marcolini , D. K. Strickland , A. D'Ercole , T. M. Heckman , C. G. Hoopes

Supernova remnants (SNRs) are believed to be the major contributors to Galactic cosmic rays. The detection of non-thermal emission from SNRs demonstrates the presence of energetic particles, but direct signatures of protons and other ions…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Gilles Ferrand , Anne Decourchelle , Samar Safi-Harb

We study the properties of the diffuse X-ray background by using the results of a cosmological hydrodynamical simulation of the concordance LambdaCDM model. The simulation follows gravitational and gas dynamics and includes a treatment of…

Astrophysics · Physics 2009-11-13 M. Roncarelli , L. Moscardini , P. Tozzi , S. Borgani , L. M. Cheng , A. Diaferio , K. Dolag , G. Murante

Radiative shocks, behind which gas cools faster than the dynamical time, play a key role in many astrophysical transients, including classical novae and young supernovae interacting with circumstellar material. The dense layer behind high…

High Energy Astrophysical Phenomena · Physics 2018-07-04 Elad Steinberg , Brian D. Metzger

Hydrodynamical models of colliding hypersonic flows are presented which explore the dependence of the resulting dynamics and the characteristics of the derived X-ray emission on numerical conduction and viscosity. For the purpose of our…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 E. R. Parkin , J. M. Pittard

Type IIn and related supernovae show evidence for an interaction with a dense circumstellar medium that produces most of the supernova luminosity. X-ray emission from shock heated gas is crucial for the energetics of the interaction and can…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Roger A. Chevalier , Christopher M. Irwin

In a previous paper we investigated the energy transfer of massive stars to the interstellar medium as a function of time and the geometrical configuration of three massive stars via 3D-mesh-refining hydrodynamics simulations, following the…

Astrophysics of Galaxies · Physics 2014-07-02 Martin Krause , Roland Diehl , Hans Böhringer , Michael Freyberg , Daniel Lubos

Using three-dimensional magnetohydrodynamics simulations, we investigate general properties of a blast wave shock interacting with interstellar clouds. The shock-cloud interaction generates a turbulent shell through the vorticity…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Tsuyoshi Inoue , Ryo Yamazaki , Shu-ichiro Inutsuka , Yasuo Fukui

(Abridged) We use a hydrodynamic simulation of a LambdaCDM model to predict the extragalactic X-ray background (XRB), focussing on emission from the intergalactic medium (IGM). We also include X-rays from point sources associated with…

In this work, we present a comprehensive X-ray picture of the interaction between a super star cluster and the ISM. In order to do that, we compare and combine the X-ray emission from the superwind driven by the cluster with the emission…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 G. A. Añorve-Zeferino , G. Tenorio-Tagle , S. Silich

The effect of smooth cloud boundaries on the interaction of steady planar shock waves with interstellar clouds is studied using a high-resolution local AMR technique with a second-order accurate axisymmetric Godunov hydrodynamic scheme. A…

Astrophysics · Physics 2009-11-11 Fumitaka Nakamura , Christopher F. McKee , Richard I. Klein , Robert T. Fisher

It has long been suggested that shocks might play an important role in altering the form of the interstellar medium (ISM). Shocks enhance gas density and sufficiently dense regions may become self gravitating. Potential star forming clouds…

Astrophysics · Physics 2015-05-13 S. V. Anathpindika

Accumulating observational evidence for a number of radio galaxies suggests an association between their jets and regions of active star formation. The standard picture is that shocks generated by the jet propagate through an inhomogeneous…

Astrophysics · Physics 2009-11-10 P. Chris Fragile , Stephen D. Murray , Peter Anninos , Wil van Breugel

The hydrodynamic state of the interstellar medium (ISM) heated and randomly stirred by supernovae (SNe) is investigated. We use a three-dimensional non-ideal hydrodynamic ISM model in a domain extending 0.5 x 0.5 kpc horizontally and 2 kpc…

Astrophysics of Galaxies · Physics 2013-12-04 Frederick Gent , Maarit J. Mantere , Anvar Shukurov , Andrew Fletcher , Graeme R. Sarson
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