Dust destruction in non-radiative shocks

  title={Dust destruction in non-radiative shocks},
  author={H. Zhu and Patrick Slane and John C. Raymond and Wenwu Tian},
  journal={arXiv: Astrophysics of Galaxies},
Supernova remnant (SNR) shock waves are the main place where interstellar dust grains are destroyed. However, the dust destruction efficiency in non-radiative shocks is still not well known. One way to estimate the fraction of dust destroyed is to compare the difference between postshock gas abundances and preshock medium total abundances when the preshock elemental depletion factors are known. We compare the postshock gas abundances of 16 SNRs in Large Magellanic Cloud (LMC) with the LMC… Expand

Figures and Tables from this paper

Paper Mentions

Revisiting the dust destruction efficiency of supernovae
Dust destruction by supernovae is one of the main processes removing dust from the interstellar medium (ISM). Estimates of the efficiency of this process, both theoretical and observational,Expand
Rotational disruption of dust grains by high-velocity gas-grain collisions
Dust grains moving at hypersonic velocities of $v_{d}\gtrsim 100~\rm km~s^{-1}$ through an ambient gas are known to be destroyed efficiently by nonthermal sputtering. Yet, previous studies ofExpand
Two Modes of Carbonaceous Dust Alignment
Radiative Torques (RATs) or Mechanical Torques (METs) acting on irregular grains can induce the alignment of dust grains in respect to the alignment axis (AA), which can be either the direction ofExpand
ALMA CO Observations of Gamma-Ray Supernova Remnant N132D in the Large Magellanic Cloud: Possible Evidence for Shocked Molecular Clouds Illuminated by Cosmic-Ray Protons
N132D is the brightest gamma-ray supernova remnant (SNR) in the Large Magellanic Cloud (LMC). We carried out $^{12}$CO($J$ = 1-0, 3-2) observations toward the SNR using the Atacama LargeExpand
Spatially Resolved Chandra Spectroscopy of the Large Magellanic Cloud Supernova Remnant N132D
We perform detailed spectroscopy of the X-ray brightest supernova remnant (SNR) in the Large Magellanic Cloud (LMC), N132D, using Chandra archival observations. By analyzing the spectra of the entireExpand
Rotational Disruption of Dust Grains by Mechanical Torques for High-velocity Gas–Grain Collisions
Dust grains moving at hypersonic velocities of $v_{d}\gtrsim 100\rm km~s^{-1}$ through an ambient gas are known to be destroyed by nonthermal sputtering. Yet, previous studies of nonthermalExpand
Simulating the interstellar medium of galaxies with radiative transfer, non-equilibrium thermochemistry, and dust
We present a novel framework to self-consistently model the effects of radiation fields, dust physics and molecular chemistry (H$_2$) in the interstellar medium (ISM) of galaxies. The model combinesExpand


Destruction of Interstellar Dust in Evolving Supernova Remnant Shock Waves
Supernova generated shock waves are responsible for most of the destruction of dust grains in the interstellar medium (ISM). Calculations of the dust destruction timescale have so far been carriedExpand
Shocked Interstellar Clouds and Dust Grain Destruction in the LMC Supernova Remnant N132D
From integral field data we extract the optical spectra of 20 shocked clouds in the supernova remnant N132D in the Large Magellanic Cloud (LMC). Using self-consistent shock modelling, we derive theExpand
A re-evaluation of dust processing in supernova shock waves
Context. There is a long-standing and large discrepancy between the timescale for dust formation around evolved stars and the rapid dust destruction timescale in interstellar shocks. Aims. We use ourExpand
Grain Destruction in a Supernova Remnant Shock Wave
Dust grains are sputtered away in the hot gas behind shock fronts in supernova remnants, gradually enriching the gas phase with refractory elements. We have measured emission in C IV $\lambda$1550Expand
Forbidden Iron Lines and Dust Destruction in Supernova Remnant Shocks: The Case of N49 in the Large Magellanic Cloud
We present results of a complete integral field survey of the bright SNR N49 in the LMC, obtained with the WiFeS instrument mounted on the ANU 2.3m telescope at Siding Spring Observatory. FromExpand
Iron and silicate dust growth in the Galactic interstellar medium: clues from element depletions
The interstellar abundances of refractory elements indicate a substantial depletion from the gas phase, that increases with gas density. Our recent model of dust evolution, based on hydrodynamicExpand
Thermal and non-thermal dust sputtering in hydrodynamical simulations of the multiphase interstellar medium
We study the destruction of interstellar dust via sputtering in supernova (SN) shocks using three-dimensional hydrodynamical simulations. With a novel numerical framework, we follow both sputteringExpand
Dust Destruction in Fast Shocks of Core-Collapse Supernova Remnants in the Large Magellanic Cloud
We report observations with the Multiband Imaging Photometer for Spitzer of four supernova remnants (SNRs) believed to be the result of core-collapse supernovae: N132D (0525–69.6), N49B (0525–66.0),Expand
The interaction of the Puppis A supernova remnant (SNR) with a neighboring molecular cloud provides a unique opportunity to measure the amount of grain destruction in an SNR shock. Spitzer SpaceExpand
Grain disruption in interstellar hydromagnetic shocks
The observed abundance variations of Ca, Fe, Si, and Ti in intermediate-velocity interstellar gas suggest that grains have been disrupted in clouds with velocities as low as 20--50 km s/sup -1/. InExpand