723 citations · 4.5k across the 41 of their papers we have counts for
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Habitable Climates: The Influence of Obliquity
David S. Spiegel, Kristen Menou, Caleb A. Scharf
Extrasolar terrestrial planets with the potential to host life might have large obliquities or be subject to strong obliquity variations. We revisit the habitability of oblique pla…
Habitable Climates
David S. Spiegel, Kristen Menou, Caleb A. Scharf
According to the standard liquid-water definition, the Earth is only partially habitable. We reconsider planetary habitability in the framework of energy-balance models, the simple…
Discovery of a Very Bright, Nearby Gravitational Microlensing Event
B. Scott Gaudi, Joseph Patterson, David S. Spiegel +18
We report the serendipitous detection of a very bright, very nearby microlensing event. In late October 2006, an otherwise unremarkable A0 star at a distance ~1 kpc (GSC 3656-1328)…
A possible dearth of hot gas in galaxy groups at intermediate redshift
David S. Spiegel, Frits Paerels, Caleb A. Scharf
We examine the X-ray luminosity of galaxy groups in the CNOC2 survey, at redshifts 0.1 < z < 0.6. Previous work examining the gravitational lensing signal of the CNOC2 groups has s…
Can We Probe the Atmospheric Composition of an Extrasolar Planet from its Reflection Spectrum in a High-Magnification Microlensing Event?
David S. Spiegel, Michel Zamojski, Alan Gersch +2
We revisit the possibility of detecting an extrasolar planet around a background star as it crosses the fold caustic of a foreground binary lens. During such an event, the planet's…