Environments of interacting transients: impostors and Type IIn supernovae

  title={Environments of interacting transients: impostors and Type IIn supernovae},
  author={S. M. Habergham and Joseph P. Anderson and Phil A. James and Joseph D. Lyman},
  journal={Monthly Notices of the Royal Astronomical Society},
This paper presents one of the first environmental analyses of the locations of the class of ‘interacting transients’, namely Type IIn supernovae (SNe) and SN impostors. We discuss the association of these transients with star formation, host galaxy type, metallicity and the locations of each event within the respective host. Given the frequent assumption of very high mass progenitors for these explosions from various studies, most notably a direct progenitor detection, it is interesting to… 

Statistical Studies of Supernova Environments

Abstract Mapping the diversity of SNe to progenitor properties is key to our understanding of stellar evolution and explosive stellar death. Investigations of the immediate environments of SNe allow

Metallicity at the explosion sites of interacting transients

Context. Some circumstellar-interacting (CSI) supernovae (SNe) are produced by the explosions of massive stars that have lost mass shortly before the SN explosion. There is evidence that the

On the environments of Type Ia supernovae within host galaxies

We present constraints on supernovae type Ia (SNe Ia) progenitors through an analysis of the environments found at the explosion sites of 102 events within star-forming host galaxies. Hα and GALEX

Interacting supernovae and supernova impostors. SN 2007sv: the major eruption of a massive star in UGC 5979

We report the results of the photometric and spectroscopic monitoring campaign of the transient SN 2007sv. The observables are similar to those of Type IIn supernovae, a well-known class of objects

Type IIn Supernovae

In this chapter discusses supernovae of Type IIn (SN IIn), the distinguishing characteristic of which is the presence of narrow spectral lines of hydrogen, indicative of circumstellar interaction.

Environments and Rates of Supernovae

In this chapter addresses the sites and occurrence rates of supernovae. In a few dozen cases, archival presupernova images revealed the immediate stellar progenitors of supernovae, particularly those

The diverse lives of progenitors of hydrogen-rich core-collapse supernovae: the role of binary interaction

Hydrogen-rich supernovae, known as Type II (SNe II), are the most common class of explosions observed following the collapse of the core of massive stars. We used analytical estimates and population

Type Ibn Supernovae May not all Come from Massive Stars

Because core-collapse supernovae are the explosions of massive stars, which have relatively short lifetimes, they occur almost exclusively in galaxies with active star formation. On the other hand,

PISCO: The PMAS/PPak Integral-field Supernova Hosts Compilation

We present the PMAS/PPak Integral-field Supernova hosts COmpilation (PISCO), which comprises integral field spectroscopy (IFS) of 232 supernova (SN) host galaxies that hosted 272 SNe, observed over

Constraints on core-collapse supernova progenitors from explosion site integral field spectroscopy

Observationally, supernovae (SNe) are divided into subclasses pertaining to their distinct characteristics. This diversity reflects the diversity in the progenitor stars. It is not entirely clear how

On the Progenitor of SN 2005gl and the Nature of Type IIn Supernovae

We present a study of the Type IIn supernova (SN) 2005gl, in the relatively nearby (d ≈ 66 Mpc) galaxy NGC 266. Photometry and spectroscopy of the SN indicate that it is a typical member of its


Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a

Constraints on core-collapse supernova progenitors from correlations with Hα emission

We present observational constraints on the nature of the different core-collapse supernova (SN) types through an investigation of the association of their explosion sites with recent star formation

On the association between core-collapse supernovae and H ii regions

Previous studies of the location of core-collapse supernovae (ccSNe) in their host galaxies have variously claimed an association with Hii regions; no association; or an association only with

A Central Excess of Stripped-Envelope Supernovae within Disturbed Galaxies

This paper presents an analysis of core-collapse supernova distributions in isolated and interacting host galaxies, paying close attention to the selection effects involved in conducting host galaxy

Comparisons of the radial distributions of core‐collapse supernovae with those of young and old stellar populations★

We present observational constraints on the nature of core-collapse (CC) supernovae (SNe) through an investigation into their radial distributions with respect to those of young and old stellar

Massive stars exploding in a He-rich circumstellar medium. I. Type Ibn (SN 2006jc-like) events

We present new spectroscopic and photometric data of the Type Ibn supernovae 2006jc, 2000er and 2002ao. We discuss the general properties of this recently proposed supernova family, which also

Observational constraints on the progenitor metallicities of core-collapse supernovae★

We present constraints on the progenitor metallicities of core-collapse supernovae. To date, nearly all metallicity constraints have been inferred from indirect methods such as metallicity gradients

On luminous blue variables as the progenitors of core-collapse supernovae, especially Type IIn supernovae

Luminous blue variable (LBV) stars are very massive, luminous, unstable stars that suffer frequent eruptions. In the last few years, these stars have been proposed as the direct progenitors of some


Metallicity is expected to influence not only the lives of massive stars but also the outcome of their deaths as supernovae (SNe) and gamma-ray bursts (GRBs). However, there are surprisingly few