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An Extreme-precision Radial-velocity Pipeline: First Radial Velocities from EXPRES [PDF]
The Astronomical Journal, 2020 Abstract The EXtreme-PREcision Spectrograph (EXPRES) is an environmentally stabilized, fiber-fed, R = 137,500, optical spectrograph. It was recently commissioned at the 4.3 m Lowell Discovery Telescope near Flagstaff, Arizona. The spectrograph was designed with a target radial-velocity (RV) precision of 30 cm s−1.
Colby A. Jurgenson +18 more
openaire +6 more sources
First Radial Velocity Results From the MINiature Exoplanet Radial Velocity Array (MINERVA) [PDF]
Publications of the Astronomical Society of the Pacific, 2019 The MINiature Exoplanet Radial Velocity Array (MINERVA) is a dedicated observatory of four 0.7m robotic telescopes fiber-fed to a KiwiSpec spectrograph. The MINERVA mission is to discover super-Earths in the habitable zones of nearby stars. This can be accomplished with MINERVA's unique combination of high precision and high cadence over long time ...
Maurice L. Wilson +54 more
openaire +7 more sources
RADIAL VELOCITY ECLIPSE MAPPING OF EXOPLANETS [PDF]
The Astrophysical Journal, 2015 7 pages, 3 figures, 1 table, accepted for publication in ApJ on 2015 June ...
Nikolay Nikolov +1 more
openaire +7 more sources
Precise Radial Velocities and Radial Velocity Standards [PDF]
Symposium - International Astronomical Union, 1985 By imposing absorption lines of HF in stellar spectra we can measure changes in r.v. with a precision of ~10m/s from a single spectrum, provided stellar line profiles are not distorted by atmospheric motions. The precision of absolute radial velocities is currently limited to ~100m/s by knowledge of rest wavelengths.
Gordon A. H. Walker +3 more
openaire +2 more sources
COMMISSION 30: RADIAL VELOCITIES [PDF]
Proceedings of the International Astronomical Union, 2007 The meeting was unfortunately scheduled for the afternoon of the last day of the General Assembly, so attendance was low. Nevertheless, we had some good discussions.
Stephane Udry +11 more
openaire +8 more sources
PRECISION RADIAL VELOCITIES WITH CSHELL [PDF]
The Astrophysical Journal, 2011 31 pages, 3 figures, 2 tables, accepted for publication in ...
L. Prato +10 more
openaire +6 more sources
The fundamental definition of “radial velocity” [PDF]
Astronomy & Astrophysics, 2003 19 pages, 1 figure.
Lindegren, Lennart, Dravins, Dainis
openaire +5 more sources
On the Accuracy of Gaia Radial Velocities [PDF]
Open Astronomy, 2001 12 pages, 2 figures, 5 tables, in press in Baltic ...
L. Tomasella, P. Agnolin, U. Munari
openaire +4 more sources
Extrasolar planets and brown dwarfs around A-F type stars - VII. Theta Cygni radial velocity variations: planets or stellar phenomenon? [PDF]
, 2009 (abridged) In the frame of the search for extrasolar planets and brown dwarfs around early-type main-sequence stars, we present the results obtained on the early F-type star Theta Cygni. Elodie and Sophie at OHP were used to obtain the spectra.
A. Eggenberger +61 more
core +7 more sources
Tachoastrometry: astrometry with radial velocities [PDF]
Astronomy & Astrophysics, 2015 Spectra of composite systems (e.g., spectroscopic binaries) contain spatial information that can be retrieved by measuring the radial velocities (i.e., Doppler shifts) of the components in four observations with the slit rotated by 90 degrees in the sky.
L. Pasquini +6 more
openaire +3 more sources