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The Habitable-zone Planet Finder Calibration System
Samuel Halverson, Suvrath Mahadevan, Lawrence Ramsey +9
We present the design concept of the wavelength calibration system for the Habitable-zone Planet Finder instrument (HPF), a precision radial velocity (RV) spectrograph designed to…
Stellar Activity Masquerading as Planets in the Habitable Zone of the M dwarf Gliese 581
Paul Robertson, Suvrath Mahadevan, Michael Endl +1
The M dwarf Gliese 581 is believed to host four planets, including one (GJ 581d) near the habitable zone that could possibly support liquid water on its surface if it is a rocky pl…
Earthshine on a Young Moon: Explaining the Lunar Farside Highlands
Arpita Roy, Jason T. Wright, Steinn Sigurdsson
The lunar farside highlands problem refers to the curious and unexplained fact that the farside lunar crust is thicker, on average, than the nearside crust. Here we recognize the c…
Determination of mass and orbital parameters of a low-mass star HD 213597B
Priyanka Chaturvedi, Rohit Deshpande, Vaibhav Dixit +6
HD 213597 is an eclipsing binary system which was detected by the STEREO spacecraft and was speculated to host a low-mass stellar companion. We used high-resolution spectroscopy wi…