Results 21 to 30 of about 10,029 (146)

The BEBOP radial-velocity survey for circumbinary planets I. Eight years of CORALIE observations of 47 single-line eclipsing binaries and abundance constraints on the masses of circumbinary planets [PDF]

open access: yes, 2019
We introduce the BEBOP radial velocity survey for circumbinary planets. We initiated this survey using the CORALIE spectrograph on the Swiss Euler Telescope at La Silla, Chile.
Hellier, Maxted
core   +1 more source

The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert [PDF]

open access: yes, 2018
To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets mass and radius with a good precision (less than or similar to 10%) is essential. To achieve this purpose the discovery of transiting exoplanets
Smalley, Hellier, Maxted
core   +1 more source

High-precision multi-wavelength eclipse photometry of the ultra-hot gas giant exoplanet WASP-103 b [PDF]

open access: yes, 2017
We present sixteen occultation and three transit light curves for the ultra-short period hot Jupiter WASP-103b, in addition to five new radial velocity measurements.
Smalley, Hellier, Maxted
core   +1 more source

The Gaia_ESO Survey: double, triple and quadruple-line spectroscopic binary candidates [PDF]

open access: yes, 2017
Context. The Gaia-ESO Survey (GES) is a large spectroscopic survey that provides a unique opportunity to study the distribution of spectroscopic multiple systems among different populations of the Galaxy. Aims.
Jeffries
core   +1 more source

Detection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques [PDF]

open access: yesThe Astronomical Journal, 2019
Abstract The sensitivities of radial velocity (RV) surveys for exoplanet detection are extending to increasingly longer orbital periods, where companions with periods of several years are now being regularly discovered. Companions with orbital periods that exceed the duration of the survey manifest in the data as an incomplete orbit or ...
Stephen R. Kane   +15 more
openaire   +5 more sources

Search for planets around young stars with the radial velocity technique [PDF]

open access: yes, 2010
Giant planets form in circumstellar disks around young stars. Two alternative theoretical formation concepts, disk instability and core accretion, may both apply under certain conditions, but core accretion is believed to be the main mechanism. No observational proof of the dominant process has been found thus far. Therefore, this thesis aims to detect
openaire   +1 more source

Development of Iodine Cells for Subaru HDS and Okayama HIDES. III. An Improvement on the Radial-Velocity Measurement Technique [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2008
Abstract An improvement of the radial-velocity measurement accuracy is crucial for the detection of tiny stellar oscillations and exoplanets. Through the analysis of week-long extensive observations of solar-type stars (Procyon in 2000, 2002, and 2006/2007 and $\tau$ Cet in 2002 and 2006/2007), we have carefully examined, revised, and ...
Kambe, Eiji   +16 more
openaire   +2 more sources

The Segue Stellar Parameter Pipeline. I. Description and Comparison of Individual Methods

open access: yes, 2016
We describe the development and implementation of the Sloan Extension for Galactic Exploration and Understanding (SEGUE) Stellar Parameter Pipeline (SSPP).
Norris, John   +11 more
core   +1 more source

Search for Large Radial Velocities in Direction of NGP Using the Fehrenbach Techniques [PDF]

open access: yesHighlights of Astronomy, 1977
The Observatory of Strasbourg will participate in the future in the general radial velocity survey which is in hand at the Observatories of Haute-Provence and of Marseille with FEHRENBACH’s Objective-prism astrograph. A programme of this type, providing a large number of data, is particularly suitable at the place where the “Data Center” is growing up ...
openaire   +1 more source

The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one

open access: yes, 2023
Aims. We report the discovery and characterisation of the transiting mini-Neptune HD 207496 b (TOI-1099) as part of a large programme that aims to characterise naked core planets.Methods.
Matson, R. A.   +30 more
core   +1 more source

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