Astrophysical Properties of 600 Bona Fide Single Stars in the Hyades Open Cluster
The Astronomical Journal, 2023 The determination of the astrophysical properties of stars remains challenging and frequently relies on the application of stellar models. Stellar sequences in nearby open clusters provide some of the best means to test and calibrate stellar evolutionary
Wolfgang Brandner +2 more
doaj +1 more source
Validation of the Exoplanet Kepler-21b using PAVO/CHARA Long-Baseline Interferometry [PDF]
, 2012 We present long-baseline interferometry of the Kepler exoplanet host star HD179070 (Kepler-21) using the PAVO beam combiner at the CHARA Array. The visibility data are consistent with a single star and exclude stellar companions at separations ~1-1000 ...
Antoine Mérand +51 more
core +2 more sources
Classifying Exoplanets with Gaussian Mixture Model
, 2018 Recently, Odrzywolek and Rafelski (arXiv:1612.03556) have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian ...
Desai, Shantanu, Kulkarni, Soham
core +1 more source
On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg [PDF]
, 2010 Greaves (2006) proposed that three red, high proper motion stars within 10 degrees of 51 Peg (NLTT 54007, 54064, & 55547) are co-moving companions to this famous exoplanet host star.
Abt +26 more
core +1 more source
Properties and Occurrence Rates for Kepler Exoplanet Candidates as a Function of Host Star Metallicity from the DR25 Catalog [PDF]
The Astronomical Journal, 2018 Abstract Correlations between the occurrence rate of exoplanets and their host star properties provide important clues about the planet formation process. We studied the dependence of the observed properties of exoplanets (radius, mass, and orbital period) as a function of their host star metallicity.
Mayank Narang +7 more
openaire +5 more sources
Extrasolar planets in stellar multiple systems
, 2012 Analyzing exoplanets detected by radial velocity or transit observations, we determine the multiplicity of exoplanet host stars in order to study the influence of a stellar companion on the properties of planet candidates.
A. Seifahrt +106 more
core +1 more source
A Catalog of Exoplanets with Equilibrium Temperature less than 600 K
, 2023 27 pages, 11 tables, 3 figures, comments ...
openaire +2 more sources
The Berlin Exoplanet Search Telescope. II. Catalog of Variable Stars. III. Census of Variable Stars in a Puppis Field [PDF]
The Astronomical Journal, 2018 Abstract The Berlin Exoplanet Search Telescope II (BEST II) is a ground-based, small aperture, wide-angle telescope used to search for stellar light variations in the southern hemisphere. We report the results of a monitoring campaign observing a field in the Puppis constellation in late 2011/early 2012.
Dreyer, C +7 more
openaire +2 more sources
They might be giants: luminosity class, planet frequency, and planet-metallicity relation of the coolest Kepler target stars [PDF]
, 2012 We estimate the stellar parameters of late K and early M type Kepler target stars. We obtain medium resolution visible spectra of 382 stars with Kp-J>2 (~K5 and later spectral type).
Gaidos, Eric +3 more
core +1 more source
ExoMiner++: Enhanced Transit Classification and a New Vetting Catalog for 2-minute TESS Data
The Astronomical JournalWe present ExoMiner++ , an enhanced deep learning model that builds on the success of ExoMiner to improve transit signal classification in 2-minute TESS data.
Hamed Valizadegan +26 more
doaj +1 more source