A paper my collaborators and I wrote on the circumstellar environment of SN 2009ip is now in press with AJ! We got some gorgeous spectra of the unusual (and unfortunately-named) SN 2009ip with the Apache Point Observatory 3.5m during its remarkable outburst (and potential SN death) in late 2012. From these spectra and their unusually low Balmer decrement we’ve gained valuable insights about SN 2009ip’s circumstellar environment and how this can partially explain its photometric evolution. Check out the paper for more details!
