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Characteristics and Large Bulk Density of the C-type Main-Belt Triple Asteroid (93) Minerva
F. Marchis, F. Vachier, J. Ďurech +11
From a set of adaptive optics (AO) observations collected with the W.M. Keck telescope between August and September 2009, we derived the orbital parameters of the most recently dis…
Strong Lens Time Delay Challenge: I. Experimental Design
Gregory Dobler, Christopher Fassnacht, Tommaso Treu +5
The time delays between point-like images in gravitational lens systems can be used to measure cosmological parameters. The number of lenses with measured time delays is growing ra…
SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8
M. S. Bothwell, J. E. Aguirre, S. C. Chapman +38
We present observations of SPT-S J053816-5030.8, a gravitationally-lensed dusty star forming galaxy (DSFG) at z = 2.7817, first discovered at millimeter wavelengths by the South Po…
Dark energy with gravitational lens time delays
T. Treu, P. J. Marshall, F. -Y. Cyr-Racine +35
Strong lensing gravitational time delays are a powerful and cost effective probe of dark energy. Recent studies have shown that a single lens can provide a distance measurement wit…
Cosmology from gravitational lens time delays and Planck data
S. H. Suyu, T. Treu, S. Hilbert +11
Under the assumption of a flat Lambda-CDM cosmology, recent data from the Planck satellite point toward a Hubble constant that is in tension with that measured by gravitational len…
Large gas reservoirs and free-free emission in two lensed star-forming galaxies at z=2.7
M. Aravena, E. J. Murphy, J. E. Aguirre +26
We report the detection of CO(1-0) line emission in the bright, lensed star-forming galaxies SPT-S 233227-5358.5 (z=2.73) and SPT-S 053816-5030.8 (z=2.78), using the Australia Tele…