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Type Ia Supernovae are Good Standard Candles in the Near Infrared: Evidence from PAIRITEL
W. Michael Wood-Vasey, Andrew S. Friedman, Joshua S. Bloom +11
We have obtained 1087 NIR (JHKs) measurements of 21 SNe Ia using PAIRITEL, nearly doubling the number of well-sampled NIR SN Ia light curves. These data strengthen the evidence tha…
Weak Gravitational Lensing of High-Redshift 21 cm Power Spectra
Kaisey S. Mandel, Matias Zaldarriaga
We describe the effects of weak gravitational lensing by cosmological large scale structure on the diffuse emission of 21 centimeter radiation from neutral hydrogen at high redshif…
Analytic Lightcurves for Planetary Transit Searches
Kaisey Mandel, Eric Agol
We present exact analytic formulae for the eclipse of a star described by quadratic or nonlinear limb darkening. In the limit that the planet radius is less than a tenth of the ste…
On the Spectroscopic Diversity of Type Ia Supernovae
Kazuhito Hatano, David Branch, Eric J. Lentz +3
A comparison of the ratio of the depths of two absorption features in the spectra of TypeIa supernovae (SNe Ia) near the time of maximum brightness with the blueshift of the deep r…