Evidence for a Dense, Inhomogeneous Circumstellar Medium in the Type Ia SNR 0519-69.0
arXiv:2207.08724 · doi:10.3847/1538-4357/ac81ca
Abstract
We perform an expansion study of the Balmer dominated outer shock of the SNR 051969.0 in the LMC by using a combination of new HST WFC3 imagery obtained in 2020 and archival ACS images from 2010 and 2011. Thanks to the very long time baseline, our proper motion measurements are of unprecedented accuracy. We find a wide range of shock velocities, with the fastest shocks averaging 5280 km/s and the slowest grouping of shocks averaging just 1670 km/s. We compare the H_alpha images from HST with X-ray images from Chandra and mid-IR images from Spitzer, finding a clear anti-correlation between the brightness of the remnant in a particular location and the velocity of the blast wave at that location, supporting the idea that the bright knots of X-ray and IR emission result from an interaction with a dense inhomogeneous circumstellar medium. We find no evidence for X-ray emission, thermal or nonthermal, associated with the fastest shocks, as expected if the fastest velocities are the result of the blast wave encountering the lower density ambient medium of the LMC. We derive an age of the remnant of 670 +/- 70 yr, consistent with results derived from previous investigations.
arXiv comment8 or so pages, half a dozen figures, accepted for publication in ApJ
References in corpus (28)
- Gaia Data Release 2. Summary of the contents and survey properties
- Type Ia Supernovae Strongly Interacting with Their Circumstellar Medium
- Balmer-Dominated Spectra of Nonradiative Shocks in the Cygnus Loop, RCW 86 and Tycho Supernova Remnants
- Echoes from Ancient Supernovae in the Large Magellanic Cloud
- A Deep Chandra Observation of Kepler's Supernova Remnant: A Type Ia Event with Circumstellar Interaction
- Electron-Ion Temperature Equilibration in Collisionless Shocks: the Supernova Remnant-Solar Wind Connection
- RCW 86: A Type Ia Supernova in a Wind-Blown Bubble
- A Deep Search for Prompt Radio Emission from Thermonuclear Supernovae with the Very Large Array
- Spatial Structure and Collisionless Electron Heating in Balmer-dominated Shocks
- Balmer-Dominated Shocks: A Concise Review
- Dust Destruction in Type Ia Supernova Remnants in the Large Magellanic Cloud
- A High-Resolution X-Ray and Optical Study of SN 1006: Asymmetric Expansion and Small-Scale Structure in a Type Ia Supernova Remnant
- Azimuthal Density Variations Around the Rim of Tycho's Supernova Remnant
- The Progenitor of the Type Ia Supernova that created SNR 0519-69.0 in the Large Magellanic Cloud
- Delayed Circumstellar Interaction for Type Ia SN 2015cp Revealed by an HST Ultraviolet Imaging Survey
- Collisionless shock in a partially ionized medium. II. Balmer emission
- Optical tomography of chemical elements synthesized in Type Ia supernovae
- An X-ray and Radio Study of the Varying Expansion Velocities in Tycho's Supernova Remnant
- The Detection of Far Ultraviolet Line Emission from Balmer-Dominated Supernova Remnants in the Large Magellanic Cloud
- Spitzer Observations of the Type Ia Supernova Remnant N103B: Kepler's Older Cousin?
- Search for Surviving Companions of Progenitors of Young LMC Type Ia Supernova Remnants
- Excluding super-soft X-ray sources as progenitors for four Type Ia supernovae in the Large Magellanic Cloud
- Cosmic Ray acceleration and Balmer emission from SNR 0509-67.5
- Constraints on Cosmic-ray Acceleration Efficiency in Balmer Shocks of Two Young Type Ia Supernova Remnants in the Large Magellanic Cloud
- Balmer filaments in Tycho's supernova remnant: an interplay between cosmic-ray and broad-neutral precursors
- Forbidden Line Emission from Type Ia Supernova Remnants Containing Balmer-Dominated Shells
- Thirty Years of Radio Observations of Type Ia SN 1972E and SN 1895B: Constraints on Circumstellar Shells
- A Third Epoch Proper Motion Study of The Forward Shock in Kepler's Supernova Remnant
Cited by in corpus (4)
- Electron-Ion Temperature Ratio in Astrophysical Shocks
- Rapid Expansion of the Young Type Ia Supernova Remnant 0519-69.0: More Evidence for a Circumstellar Shell
- Probing the Diversity of Type Ia Supernova Remnants in 3-D Hydrodynamic Simulations with X-ray Spectral Synthesis
- Three-Dimensional Simulations of Type Ia Supernova Remnants I: Effects of a Main-Sequence Companion Star