We present Keck K-band observations of GX 17+2 which reveal a bright counterpart in the radio error circle of Deutsch et al. (1999), coincident with their star...
The Infrared Nuclear Emission of Seyfert Galaxies on Parsec Scales: Testing the Clumpy Torus Models
We present subarcsecond resolution mid-infrared (mid-IR) photometry in the range from 8 to 20 μm of 18 nearby Seyfert galaxies, reporting high spatial...
The infrared overluminosity of young, ultracool substellar objects
Most young, ultracool substellar objects with spectral types later than M9 show very red mid-infrared colors up to 24~micron, significantly redder than expected...
The Initial--Final Mass Relationship of White Dwarfs in Common Proper Motion Pairs
A promising approach to decrease the uncertainties in the initial--final mass relationship, which is still poorly constrained, is to study white dwarfs for...
The Initial-Final Mass Relationship of White Dwarfs in Common Proper Motion Pairs and Open Clusters
The initial-to-final mass relationship is the connection between the mass of a white dwarf and the mass of its progenitor in the main sequence. This function is...