Statistical properties of the nebular spectra of 103 stripped envelope core collapse supernovae

Abstract

We present an analysis of the nebular spectra of 103 stripped envelope (SE) supernovae (SNe) collected from the literature and observed with the Subaru Telescope from 2002 to 2012, focusing on [O I] 6300, 6363. The line profile and width of [O I] are employed to infer the ejecta geometry and the expansion velocity of the inner core. These two measurements are then compared with the SN sub types, and further with the [O I]/[Ca II] ratio, which is used as an indicator of the progenitor CO core mass. Based on the best fit results of the [O I] profile, the objects are classified into different morphological groups, and we conclude that the deviation from spherical symmetry is a common feature for all types of SESNe. There is a hint (at about 1 sigma level) that the distributions of the line profile fractions are different between canonical SESNe and broad-line SNe Ic. A correlation between [O I] width and [O I]/[Ca II] ratio is discerned, indicating that the oxygen-rich material tends to expand faster for objects with a more massive CO core. Such a correlation can be utilized to constrain the relation between the progenitor mass and the kinetic energy of the explosion. Further, when [O I]/[Ca II] ratio increases, the fraction of objects with Gaussian [O I] profile increases, while those with double-peaked profile decreases. This phenomenon connects ejecta geometry and the progenitor CO core mass.

40 pages, 23 figures, 10 tables. Accepted for publication in ApJ

References in corpus (29)

• Array Programming with NumPy
• The Supernova -- Gamma-Ray Burst Connection
• HyperLEDA. III. The catalogue of extragalactic distances
• Observational constraints on the progenitors of core-collapse supernovae : the case for missing high mass stars
• Spectropolarimetry of Supernovae
• From Shock Breakout to Peak and Beyond: Extensive Panchromatic Observations of the Type Ib Supernova 2008D associated with Swift X-ray Transient 080109
• Asphericity in Supernova Explosions from Late-Time Spectroscopy
• Early-Time Photometry and Spectroscopy of the Fast Evolving SN 2006AJ Associated with GRB 060218
• Optical Spectra of 73 Stripped-Envelope Core-Collapse Supernovae
• SN 2004aw: Confirming Diversity of Type Ic Supernovae
• Revisiting the Lick Observatory Supernova Search Volume-Limited Sample: Updated Classifications and Revised Stripped-Envelope Supernova Fractions
• Late-time spectral line formation in Type IIb supernovae, with application to SN 1993J, SN 2008ax, and SN 2011dh
• ESC Supernova spectroscopy of non-ESC targets
• Double-peaked Oxygen Lines Are not Rare in Nebular Spectra of Core-Collapse Supernovae
• Evolutionary Models for Type Ib/c Supernova Progenitors
• The Broad-Lined Type Ic SN 2012ap and the Nature of Relativistic Supernovae Lacking a Gamma-ray Burst Detection
• A Cool and Inflated Progenitor Candidate for the Type Ib Supernova 2019yvr at 2.6 Years Before Explosion
• SN 2013df, a double-peaked IIb supernova from a compact progenitor and an extended H envelope
• Comparing Neutron Star Kicks to Supernova Remnant Asymmetries
• Nebular phase observations of the type-Ib supernova iPTF13bvn favour a binary progenitor
• The progenitor and early evolution of the Type IIb SN 2016gkg
• Spectropolarimetry of the Type IIb Supernova 2001ig
• Supernova 2010as: the Lowest-Velocity Member of a Family of Flat-Velocity Type IIb Supernovae
• On the Progenitor of the Type IIb Supernova 2016gkg
• Nebular phase properties of supernova Ibc from He-star explosions
• Radiative-transfer modeling of nebular-phase type II supernovae. Dependencies on progenitor and explosion properties
• Properties of Convective Oxygen and Silicon Burning Shells in Supernova Progenitors
• Optical Follow-Up Observations of PTF10qts, a Luminous Broad-Lined Type Ic Supernova Found by the Palomar Transient Factory
• Evidence for multiple origins of fast declining Type II supernovae from spectropolarimetry of SN 2013ej and SN 2017ahn

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