The Chemical Distribution in a Subluminous Type Ia Supernova: HST Images of the SN 1885 Remnant

Abstract

We present HST images of the remnant of SN 1885 seen in absorption against M31's bulge via resonance lines of Ca I, Ca II, Fe I, and Fe II. Viewed in CaII H & K line absorption, the remnant appears as a nearly black circular spot with an outermost angular radius of 0.40" +/- 0.025" implying r = 1.52 pc and a 120 yr average expansion velocity of 12400 +/-1400 km/s. The strongest Ca II absorption is organized in a broken ring structure with a radius of 0.20" (=6000 km/s) with several apparent absorption `clumps' of an angular size near the pixel scale of 0.05" (= 1500 km/s). The detection of Ca II clumps is the first direct evidence for some instabilities and the existence of a deflagration phase in SNe Ia or, alternatively, mixing induced by radioactive decay of 56^Ni over time scales of seconds or days. However, the degree of mixing allowed by the observed images is much smaller than current 3D calculations for Rayleigh-Taylor dominated deflagration fronts. The images also require a central region of no or little Ca but iron group elements indicative of burning under sufficiently high densities for electron capture taking place, i.e., burning prior to a significant pre-expansion of the WD.

arXiv comment18 pages, 14 figures. Accepted for publication in ApJ

References in corpus (31)

• Atomic Data for Astrophysics. II. New Analytic Fits for Photoionization Cross Sections of Atoms and Ions
• Nucleosynthesis in Chandrasekhar Mass Models for Type Ia Supernovae and Constraints on Progenitor Systems and Burning-Front Propagation
• The Reddening-Free Decline Rate Versus Luminosity Relationship for Type Ia Supernovae
• Type Ia Supernovae: Influence of the Initial Composition on the Nucleosynthesis, Light Curves, Spectra and Consequences for the Determination of Omega_M & Lambda
• Distance to M31 With the HST and Hipparcos Red Clump Stars
• Type Ia Supernova Explosion: Gravitationally Confined Detonation
• Three-Dimensional Delayed-Detonation Model of Type Ia Supernova
• The Thermonuclear Explosion Of Chandrasekhar Mass White Dwarfs
• Infrared Spectra of the Subluminous Type Ia Supernova 1999by
• Deflagration to Detonation Transition in Thermonuclear Supernovae
• Evidence for Asphericity in a Subluminous Type Ia Supernova: Spectropolarimetry of SN 1999by
• Presupernova evolution of accreting white dwarfs with rotation
• On the Thermonuclear Runaway in Type Ia Supernovae: How to run away?
• Spectropolarimetry of the Type II Supernovae 1997ds, 1998A, and 1999gi
• RR Lyrae Stars in the Andromeda Halo from Deep Imaging with the Advanced Camera for Surveys
• HST/WFPC2 Color-Magnitude Diagrams for Globular Clusters in M31
• On the Sensitivity of Deflagrations in Chandrasekhar Mass White Dwarf to Initial Conditions
• Signature of Electron Capture in Iron-Rich Ejecta of SN 2003du
• A Chandra High-Resolution Camera Observation of X-Ray Point Sources in M31
• Effects of rotation on the helium burning shell source in accreting white dwarfs
• Delayed Detonation at a Single Point in Exploding White Dwarfs
• Evolution of Rotating Accreting White Dwarfs and the Diversity of Type Ia Supernovae
• On the small-scale stability of thermonuclear flames in Type Ia supernovae
• The distributed burning regime in Type Ia supernova models
• A Search for Radio Emission from Supernovae With Ages from About One Week to More Than 80 Years
• Properties of Deflagration Fronts and Models for Type Ia Supernovae
• Identification of 13 Cepheids and 333 Other Variables in M31
• Physics of SNeIa and Cosmology
• HST Images and Spectra of the Remnant of SN 1885 in M31
• An Ultraviolet Fe II Image of SN 1885 in M31
• The Light Curve of S Andromedae

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