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20022008
most citedNew Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy

1.8k citations

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40 papers · 1 filter

astro-ph2008

Kinematics of planetary nebulae in the outskirts of the elliptical galaxy NGC 4697

R. H. Mendez, A. M. Teodorescu, R. -P. Kudritzki +1

We describe the implementation of slitless radial velocity measurements of extragalactic planetary nebulae (PNs) with the 8.2 m Subaru telescope and its Cassegrain imaging spectrog…

astro-ph20089 cited

The Cepheid Galactic Internet

John G. Learned, R-P. Kudritzki, Sandip Pakvasa +1

We propose that a sufficiently advanced civilization may employ Cepheid variable stars as beacons to transmit all-call information throughout the galaxy and beyond. One can constru…

astro-ph200834 cited

A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16)

Nicholas A. Moskovitz, Samuel Lawrence, Robert Jedicke +4

We present visible and near-infrared reflectance spectra and interpreted surface mineralogy for asteroid 10537 (1991 RY16). The spectrum of this object is without precedent amongst…

astro-ph2008168 cited

Discovery of Two Nearby, Peculiar L Dwarfs from the 2MASS Proper Motion Survey: Young or Metal-Rich?

Dagny L. Looper, J. Davy Kirkpatrick, Roc M. Cutri +9

We present the discovery of two nearby L dwarfs from our 2MASS proper motion search, which uses multi-epoch 2MASS observations covering ~4700 square degrees of sky. 2MASS J18212815…

astro-ph200876 cited

Time Dilation in Type Ia Supernova Spectra at High Redshift

S. Blondin, T. M. Davis, K. Krisciunas +29

We present multiepoch spectra of 13 high-redshift Type Ia supernovae (SNe Ia) drawn from the literature, the ESSENCE and SNLS projects, and our own separate dedicated program on th…

astro-ph200899 cited

Discovery of a T Dwarf Binary with the Largest Known J-Band Flux Reversal

D. L. Looper, C. R. Gelino, A. J. Burgasser +1

We present Keck laser guide star observations of two T2.5 dwarfs - 2MASS J11061197+2754225 & 2MASS J14044941-3159329 - using NIRC2 on Keck-II and find 2MASS J14044941-3159329 to be…