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Unique Science from a Coordinated LSST-WFIRST Survey of the Galactic Bulge
R. A. Street, M. B. Lund, M. Donachie +19
NASA's WFIRST mission will perform a wide-field, NIR survey of the Galactic Bulge to search for exoplanets via the microlensing techniques. As the mission is due to launch in the m…
The Diverse Science Return from a Wide-Area Survey of the Galactic Plane
R. A. Street, M. B. Lund, S. Khakpash +19
The overwhelming majority of objects visible to LSST lie within the Galactic Plane. Though many previous surveys have avoided this region for fear of stellar crowding, LSST's spati…
Radii of 88 M Subdwarfs and Updated Radius Relations for Low-Metallicity M Dwarf Stars
Aurora Y. Kesseli, J. Davy Kirkpatrick, Sergio B. Fajardo-Acosta +9
M subdwarfs are low-metallicity M dwarfs that typically inhabit the halo population of the Galaxy. Metallicity controls the opacity of stellar atmospheres; in metal poor stars, hyd…
KMT-2017-BLG-0165Lb: A Super-Neptune mass planet Orbiting a Sun-like Host Star
Youn Kil Jung, Andrew Gould, Weicheng Zang +22
We report the discovery of a low mass-ratio planet , i.e., 2.5 times higher than the Neptune/Sun ratio. The planetary system was discovered from the analysi…
Predictions of the WFIRST Microlensing Survey I: Bound Planet Detection Rates
Matthew T. Penny, B. Scott Gaudi, Eamonn Kerins +4
The Wide Field InfraRed Survey Telescope (WFIRST) is the next NASA astrophysics flagship mission, to follow the James Webb Space Telescope (JWST). The WFIRST mission was chosen as…
Velocity-resolved reverberation mapping of five bright Seyfert 1 galaxies
G. De Rosa, M. M. Fausnaugh, C. J. Grier +99
We present the first results from a reverberation-mapping campaign undertaken during the first half of 2012, with additional data on one AGN (NGC 3227) from a 2014 campaign. Our ma…