SWEET-Cat update and FASMA - A new minimization procedure for stellar parameters using high-quality spectra

@article{Andreasen2017SWEETCatUA,
  title={SWEET-Cat update and FASMA - A new minimization procedure for stellar parameters using high-quality spectra},
  author={D. Andreasen and S. Sousa and M. Tsantaki and G. Teixeira and A. Mortier and N. Santos and L. Su{\'a}rez-Andr{\'e}s and E. Delgado-Mena and A. C. S. Ferreira},
  journal={Astronomy and Astrophysics},
  year={2017},
  volume={600}
}
Context: Thanks to the importance that the star-planet relation has to our understanding of the planet formation process, the precise determination of stellar parameters for the ever increasing number of discovered extrasolar planets is of great relevance. Furthermore, precise stellar parameters are needed to fully characterize the planet properties. It is thus important to continue the efforts to determine, in the most uniform way possible, the parameters for stars with planets as new… Expand
SWEET-Cat updated. New homogenous spectroscopic parameters.
Context: Exoplanets have now been proven to be very common. The number of its detections continues to grow following the development of better instruments and missions. One key step for theExpand
Atmospheric stellar parameters for large surveys using FASMA, a new spectral synthesis package
In the era of vast spectroscopic surveys focusing on Galactic stellar populations, astronomers want to exploit the large quantity and good quality of data to derive their atmospheric parametersExpand
FASMA 2.0: A Python package for stellar parameters and chemical abundances
TLDR
This work uses spectroscopy as a powerful tool to extract information from stellar atmospheres applied to stars with spectral type FGK both dwarfs and giants to infer their chemical abundances of various elements and in conjunction with evolutionary models to estimate their evolution. Expand
The homogeneous characterisation of Ariel host stars
TLDR
A structured approach for the characterisation of Ariel stars that accounts for the concepts of homogeneity and coherence among a large set of stellar parameters and preliminary results for elemental abundances of Na, Al, Mg, Si, C, N. Expand
A multiplicity study of transiting exoplanet host stars
We perform a detailed study of six transiting planetary systems with relatively bright stars close enough to affect observations of these systems. Light curves are analysed taking into account theExpand
On the iron ionization balance of cool stars
High-resolution spectroscopic studies of solar-type stars have revealed higher iron abundances derived from singly ionized species compared to neutral, violating the ionization equilibrium under theExpand
Catalog for the ESPRESSO blind radial velocity exoplanet survey
One of the main scientific drivers for ESPRESSO,Echelle SPectrograph, is the detection and characterization of Earth-class exoplanets. With this goal in mind, the ESPRESSO Guaranteed TimeExpand
Heavy Metal Rules. I. Exoplanet Incidence and Metallicity
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars. More than 20 years have already passed from thatExpand
STEPAR: an automatic code to infer stellar atmospheric parameters
Context: StePar is an automatic code written in Python 3.X designed to compute the stellar atmospheric parameters Teff, log(g), [Fe/H], and of FGK-type stars by means of the EW method. This code hasExpand
An Ultra-short Period Rocky Super-Earth with a Secondary Eclipse and a Neptune-like Companion around K2-141
Ultra-short period (USP) planets are a class of low-mass planets with periods shorter than one day. Their origin is still unknown, with photo-evaporation of mini-Neptunes and in situ formation beingExpand
...
1
2
...

References

SHOWING 1-10 OF 76 REFERENCES
SWEET-Cat: A catalogue of parameters for Stars With ExoplanETs - I. New atmospheric parameters and masses for 48 stars with planets
Context. Thanks to the importance that the star-planet relation has to our understanding of the planet formation process, the precise determination of stellar parameters for the ever increasingExpand
Spectroscopic stellar parameters for 582 FGK stars in the HARPS volume-limited sample. Revising the metallicity-planet correlation
To understand the formation and evolution of solar-type stars and planets in the solar neighborhood, we need to obtain their stellar parameters with high precision. We present a catalog of preciseExpand
The Penn State-Toruń Centre for Astronomy Planet Search stars - I. Spectroscopic analysis of 348 red giants
Aims. We present basic atmospheric parameters (Teff ,l ogg, vt ,a nd [Fe/H]) as well as luminosities, masses, radii, and absolute radial velocities for 348 stars, presumably giants, from the ∼1000Expand
The Penn State - Torun Centre for Astronomy Planet Search stars. II. Lithium abundance analysis of the Red Giant Clump sample
Using the sample of 348 stars from the PennState-Torun Centre for Astronomy Planet Search, for which uniformly determined atmospheric parameters are available, with chemical abundances and rotationalExpand
Improved Parameters for Extrasolar Transiting Planets
We present refined values for the physical parameters of transiting exoplanets, based on a self-consistent and uniform analysis of transit light curves and the observable properties of the hostExpand
Spectroscopic parameters for 451 stars in the HARPS GTO planet search program - Stellar [Fe/H] and the frequency of exo-Neptunes
To understand the formation and evolution of solar-type stars in the solar neighborhood, we need to measure their stellar parameters to high accuracy. We present a catalogue of accurate stellarExpand
Deriving precise parameters for cool solar-type stars Optimizing the iron line list ?;??;???
Context. Temperature, surface gravity, and metallicitity are basic stellar atmospheric parameters necessary to characterize a star. There are several methods to derive these parameters and aExpand
Statistical properties of exoplanets. II. Metallicity, orbital parameters, and space velocities
In this article we present a detailed spectroscopic analysis of more than 50 extra-solar planet host stars. Stellar atmospheric parameters and metallicities are derived using high resolution and highExpand
Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program - Galactic stellar populations and planets
Context. We performed a uniform and detailed abundance analysis of 12 refractory elements (Na, Mg, Al, Si, Ca, Ti, Cr, Ni, Co, Sc, Mn, and V) for a sample of 1111 FGK dwarf stars from the HARPS GTOExpand
Chemical abundances of 451 stars from the HARPS GTO planet search program - Thin disc, thick disc, and planets
We present a uniform study of the chemical abundances of 12 elements (Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Na, Mg, and Al) derived from the spectra of 451 stars observed as part of one of the HARPS GTOExpand
...
1
2
3
4
5
...