An Integral View of Fast Shocks around Supernova 1006

Abstract

Supernova remnants are among the most spectacular examples of astrophysical pistons in our cosmic neighborhood. The gas expelled by the supernova explosion is launched with velocities ~ 1000 km/s into the ambient, tenuous interstellar medium, producing shocks that excite hydrogen lines. We have used an optical integral-field spectrograph to obtain high-resolution spatial-spectral maps that allow us to study in detail the shocks in the northwestern rim of supernova 1006. The two-component Hα line is detected at 133 sky locations. Variations in the broad line widths and the broad-to-narrow line intensity ratios across tens of atomic mean free paths suggest the presence of suprathermal protons, the potential seed particles for generating high-energy cosmic-rays.

Published in Science Express, 12 pages, 6 figures and 1 table

References in corpus (12)

• A Physical Relationship Between Electron-Proton Temperature Equilibration and Mach Number in Fast Collisionless Shocks
• First detection of VHE gamma-rays from SN 1006 by H.E.S.S
• Spatial Structure and Collisionless Electron Heating in Balmer-dominated Shocks
• Balmer-Dominated Shocks Revisited
• The gas density around SN 1006
• SUBARU HDS Observations of a Balmer-Dominated Shock in Tycho's Supernova Remnant
• PyCosmic: a robust method to detect cosmics in CALIFA and other fiber-fed integral-field spectroscopy datasets
• Collisionless shock in a partially ionized medium. II. Balmer emission
• Aspect angle for interstellar magnetic field in SN 1006
• Non-Maxwellian Proton Velocity Distributions in Nonradiative Shocks
• The Transition Zone in Balmer-Dominated Shocks
• A high resolution UV absorption spectrum of supernova ejecta in SN1006

Cited by in corpus (27)

• The Origin of Galactic Cosmic Rays
• The microphysics of collisionless shock waves
• The 1st Fermi Lat Supernova Remnant Catalog
• The origin of galactic cosmic rays
• A High-Resolution X-Ray and Optical Study of SN 1006: Asymmetric Expansion and Small-Scale Structure in a Type Ia Supernova Remnant
• Collisionless shocks in a partially ionized medium: III. Efficient cosmic ray acceleration
• Radio Evolution of Supernova Remnants Including Non-linear Particle Acceleration: Insights from Hydrodynamic Simulations
• Electron-Ion Temperature Ratio in Astrophysical Shocks
• Shock-cloud interaction and particle acceleration in SN 1006
• Collisionless shocks in partly ionized plasma with cosmic rays: microphysics of non-thermal components
• Recent results in cosmic ray physics and their interpretation
• XMM-Newton Large Program on SN1006 - I: Methods and Initial Results of Spatially-Resolved Spectroscopy
• Time evolution of broadband non-thermal emission from supernova remnants in different circumstellar environments
• The connection between supernova remnants and the Galactic magnetic field: An analysis of quasi-parallel and quasi-perpendicular cosmic ray acceleration for the axisymmetric sample
• Balmer filaments in Tycho's supernova remnant: an interplay between cosmic-ray and broad-neutral precursors
• Modeling the shock-cloud interaction in SN 1006: unveiling the origin of nonthermal X-ray and gamma-ray emission
• Electron heating in high Mach number collisionless shocks
• XMM-Newton Large Program on SN1006 - II: Thermal Emission
• Supernova of 1006 (G327.6+14.6)
• A Hydro-Based MCMC Analysis of SNR 0509-67.5 Revealing the Explosion Properties from Fluid Discontinuities Alone
• Robustness of the filamentation instability for asymmetric plasma shells collision in arbitrarily oriented magnetic field
• Using optical lines to study particle acceleration at supernova remnants
• Discovery of polarized line emission in SN1006
• Interplay between Physics and Geometry in Balmer filaments: the Case of SN 1006
• The loss-limited electron energy in SN 1006: effects of the shock velocity and of the diffusion process
• Nonthermal processes and particle acceleration in supernova remnants
• Detailed characterization of laboratory magnetized super-critical collisionless shock and of the associated proton energization