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SN 2009md: Another faint supernova from a low mass progenitor
M. Fraser, M. Ergon, J. J. Eldridge +21
We present adaptive optics imaging of the core collapse supernova (SN) 2009md, which we use together with archival \emph{Hubble Space Telescope} data to identify a coincident proge…
The Disappearance of the Red Supergiant Progenitor of Supernova 2008bk
Seppo Mattila, Stephen Smartt, Justyn Maund +2
Massive stars end their lives in spectacular supernova explosions. Identifying the progenitor star is a test of stellar evolution and explosion models. Here we show that the progen…
Galaxy counterparts of metal-rich damped Lyman-alpha absorbers - II. A solar-metallicity and dusty DLA at z_abs=2.58
J. P. U. Fynbo, C. Ledoux, P. Noterdaeme +14
[Abridged]. Here, we report on the discovery of the galaxy counterpart of the z_abs=2.58 DLA on the line-of-sight to the z=3.07 quasar SDSS J091826.16+163609.0. The galaxy counterp…
A spectropolarimetric view on the nature of the peculiar Type I SN 2005hk
J. R. Maund, J. C. Wheeler, L. Wang +6
We report two spectropolarimetric observations of SN 2005hk, which is a close copy of the "very peculiar" SN 2002cx, showing low peak luminosity, slow decline, high ionization near…
The Unification of Asymmetry Signatures of Type Ia Supernovae
J. R. Maund, P. A. Hoeflich, F. Patat +6
We present a compilation of the geometry measures acquired using optical and IR spectroscopy and optical spectropolarimetry to probe the explosion geometry of Type Ia SNe. Polariza…
Galaxy Counterparts of metal-rich Damped Lyman-alpha Absorbers - I: The case of the z=2.35 DLA towards Q2222-0946
J. P. U. Fynbo, P. Laursen, C. Ledoux +12
We have initiated a survey using the newly commissioned X-shooter spectrograph to target candidate relatively metal-rich damped Lyman-alpha absorbers (DLAs). The spectral coverage…