On the Geometry of the High-Velocity Ejecta of the Peculiar Type Ia Supernova 2000cx
arXiv:astro-ph/0302260 · doi:10.1086/380632
Abstract
High-velocity features in Type Ia supernova spectra provide a way to probe the outer layers of these explosions. The maximum-light spectra of the unique Type Ia supernova 2000cx exhibit interesting Ca II features with high-velocity components. The infrared triplet absorption is quadruply notched, while the H&K absorption is wide and flat. Stimulated by a three-dimensional interpretation of similar Ca II features in another Type Ia supernova (SN 2001el, Kasen et al. 2003), we present alternative spherically symmetric and three-dimensional ejecta models to fit the high-velocity (v > 16,000 km/s) Ca II features of SN 2000cx. We also present simple estimates of the high-velocity ejecta mass for a few trial compositions and discuss their implications for explosion modelling.
33 pages total, 13 figures, accepted by ApJ
References in corpus (5)
- Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications
- Photometry and Spectroscopy of the Type IIP SN 1999em from Outburst to Dust Formation
- Spectropolarimetry of SN 2001el in NGC 1448: Asphericity of a Normal Type Ia Supernova
- Three-dimensional simulations of type Ia supernovae
- Analysis of the Flux and Polarization Spectra of the Type Ia Supernova SN 2001el: Exploring the Geometry of the High-velocity Ejecta
Cited by in corpus (33)
- Comparative Direct Analysis of Type Ia Supernova Spectra. II. Maximum Light
- The Broad-lined Type Ic SN 2003jd
- SN 2003du: 480 days in the Life of a Normal Type Ia Supernova
- High-Velocity Features: a ubiquitous property of Type Ia SNe
- A Golden Standard Type Ia Supernova SN 2005cf: Observations from the Ultraviolet to the Near-Infrared Wavebands
- Early and late time VLT spectroscopy of SN 2001el - progenitor constraints for a type Ia supernova
- The Extremes of Thermonuclear Supernovae
- Optical Spectroscopy of Type Ia Supernovae
- Spectroscopic Observations and Analysis of the Peculiar SN 1999aa
- Three-dimensional modeling of Type Ia supernovae - The power of late time spectra
- The Outermost Ejecta of Type Ia Supernovae
- Reading the Spectra of the Most Peculiar Type Ia Supernova 2002cx
- Comparative Direct Analysis of Spectra of Type Ia Supernovae. I. SN 1994D
- High velocity features in the spectra of the Type Ia SN 1999ee: a property of the explosion or evidence of circumstellar interaction?
- Hydrogen and helium in the spectra of Type Ia supernovae
- Could There Be A Hole In Type Ia Supernovae?
- SN 2012fr: Ultraviolet, Optical, and Near-Infrared Light Curves of a Type Ia Supernova Observed Within a Day of Explosion
- A review of type Ia supernova spectra
- SN 2005cg: Explosion Physics and Circumstellar Interaction of a Normal Type Ia Supernova in a Low-Luminosity Host
- 3D Models for High Velocity Features in Type Ia Supernovae
- High-Velocity Line Forming Regions in the Type Ia Supernova 2009ig
- Comparative Direct Analysis of Type Ia Supernova Spectra. IV. Postmaximum
- Abundance stratification in Type Ia supernovae - III. The normal SN 2003du
- Direct Analysis of Spectra of the Peculiar Type Ia Supernova 2000cx
- Spectral Signatures of Gravitationally Confined Thermonuclear Supernova Explosions
- Comparative Direct Analysis of Type Ia Supernova Spectra. III. Premaximum
- Persistent C II Absorption in the Normal Type Ia Supernova 2002fk
- Comparative Analysis of SN 2012dn Optical Spectra: Days -14 to +114
- SN 2000cx and SN 2013bh: Extremely Rare, Nearly Twin Type Ia Supernovae
- Exploring the shell model of high-velocity features of Type Ia supernovae using TARDIS
- ZTF SN Ia DR2: High-velocity components in the Si II 6355
- Narrow Transient Absorptions in Late-Time Optical Spectra of Type Ia Supernovae: Evidence for Large Clumps of Iron-Rich Ejecta?
- Exploring the origins of high-velocity features in SNe Ia with the spectral synthesis code TARDIS