370 citations · 1.1k across the 10 of their papers we have counts for
9 papers
Thorium in solar twins: implications for habitability in rocky planets
Rafael B. Botelho, Andre de C. Milone, Jorge Melendez +10
We have investigated the thorium (Th) abundance in a sample of 53 thin disc solar twins covering a wide range of ages. These data provide constrains on the mantle energy budget of…
The Solar Twin Planet Search. I. Fundamental parameters of the stellar sample
I. Ramirez, J. Melendez, J. Bean +10
We are carrying out a search for planets around a sample of solar twin stars using the HARPS spectrograph. The goal of this project is to exploit the advantage offered by solar twi…
CAFE: Calar Alto Fiber-fed Echelle spectrograph
J. Aceituno, S. F. Sanchez, F. Grupp +9
We present here CAFE, the Calar Alto Fiber-fed Echelle spectrograph, a new instrument built at the Centro Astronomico Hispano Alemán (CAHA). CAFE is a single fiber, high-resolution…
Distance Scale Zero-Points from Galactic RR Lyrae Star Parallaxes
G. Fritz Benedict, Barbara E. McArthur, Michael W. Feast +15
We present new absolute trigonometric parallaxes and proper motions for seven Pop II variable stars: five RR Lyr variables; RZ Cep, XZ Cyg, SU Dra, RR Lyr, UV Oct; and two type 2 C…
Synthesising, using, and correcting for telluric features in high-resolution astronomical spectra
A. Seifahrt, H. U. Käufl, G. Zängl +3
We present a technique to synthesise telluric absorption and emission features both for in-situ wavelength calibration and for their removal from astronomical spectra. While the pr…
A Hubble Space Telescope transit light curve for GJ436b
J. L. Bean, G. F. Benedict, D. Charbonneau +6
We present time series photometry for six partial transits of GJ436b obtained with the Fine Guidance Sensor instrument on the Hubble Space Telescope (HST). Our analysis of these da…