• Publications
  • Influence
The Structure of the Homunculus. I. Shape and Latitude Dependence from H2 and [Fe II] Velocity Maps of η Carinae
High-resolution long-slit spectra obtained with the Phoenix spectrograph on Gemini South provide our most accurate probe of the three-dimensional structure of the Homunculus Nebula around η Carinae.Expand
  • 196
  • 78
  • PDF
Observed Fractions of Core-Collapse Supernova Types and Initial Masses of their Single and Binary Progenitor Stars
We analyse the observed fractions of core-collapse supernova (SN) types from the Lick Observatory Supernova Search (LOSS), and we discuss the corresponding implications for massive star evolution.Expand
  • 341
  • 56
  • PDF
A census of the Carina Nebula — I. Cumulative energy input from massive stars
The Carina Nebula (NGC 3372) is our richest nearby laboratory in which to study feedback through ultraviolet radiation and stellar winds from very massive stars during the formation of an OBExpand
  • 122
  • 53
  • PDF
Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
Our understanding of massive star evolution is in flux due to recent upheavals in our view of mass loss and observations of a high binary fraction among O-type stars. Mass-loss rates for standardExpand
  • 380
  • 46
  • PDF
Sn 2006gy : Discovery of the most luminous supernova ever recorded, powered by the death of an extremely massive star like η carinae
We report the discovery and early observations of the peculiar Type IIn supernova (SN) 2006gy in NGC 1260. With a peak visual magnitude of about -22, it is the most luminous supernova ever recorded.Expand
  • 402
  • 35
  • PDF
Luminous blue variable eruptions and related transients: diversity of progenitors and outburst properties
We present new light curves and optical spectra for a number of extragalactic optical transients or 'supernova impostors' related to giant eruptions of luminous blue variables (LBVs), and we provideExpand
  • 193
  • 32
  • PDF
Latitude-dependent Effects in the Stellar Wind of η Carinae
The Homunculus reflection nebula around η Carinae provides a rare opportunity to observe the spectrum of a star from more than one direction. In the case of η Car, the nebula's geometry is known wellExpand
  • 153
  • 30
  • PDF
IMPROVED STANDARDIZATION OF TYPE II-P SUPERNOVAE: APPLICATION TO AN EXPANDED SAMPLE
In the epoch of precise and accurate cosmology, cross-confirmation using a variety of cosmographic methods is paramount to circumvent systematic uncertainties. Owing to progenitor histories andExpand
  • 117
  • 26
  • PDF
The UV Scattering Halo of the Central Source Associated with η Carinae
We have made an extensive study of the UV spectrum ofCarinae and find that we do not directly observe the star and its wind in the UV. Because of dust along our line of sight, the UV light that weExpand
  • 72
  • 23
  • PDF