5 citations · 6 across the 6 of their papers we have counts for
9 papers · 1 filter
Galactic Open Clusters
Ted von Hippel
The study of open clusters has a classic feel to it since the subject predates anyone alive today. Despite the age of this topic, I show via an ADS search that its relevance and im…
White Dwarfs in Open Clusters: Calibrating the Clock
T. von Hippel, D. E. Winget, W. H. Jefferys +1
We present an update of our on-going effort to improve the precision of white dwarf cosmochronology via careful analyses of white dwarf photometry in open clusters. To improve the…
The White Dwarf Luminosity Function: The Shape of Things to Come
T. von Hippel, M. Kilic, J. Munn +10
We describe a new survey for cool white dwarfs that supplements Sloan Digital Sky Survey photometry with USNO proper motions and follow-up spectroscopy. To date we have discovered…
Identification of Cool White Dwarfs in the NOAO Deep Wide-Field Survey
M. Kilic, D. E. Winget, T. von Hippel +1
We report our search for the cool white dwarfs belonging to the Galactic disk by extending the NOAO Deep Wide-Field Survey. Narrow-band DDO51 photometry of the Deep Wide-Field Surv…
Search For Oxygen in Cool DQ White Dwarf Atmospheres
M. Kilic, D. E. Winget, T. von Hippel +2
We report new infrared spectroscopic observations of cool DQ white dwarfs by using Coolspec on the 2.7m Harlan-Smith Telescope. DQs have helium-rich atmospheres with traces of mole…
Automated Stellar Spectral Classification and Parameterization for the Masses
Ted von Hippel, Carlos Allende Prieto, Chris Sneden
Stellar spectroscopic classification has been successfully automated by a number of groups. Automated classification and parameterization work best when applied to a homogeneous da…