English
Related papers

Related papers: The APOKASC Catalog

200 papers

The internal working of low-mass stars is of great significance to both the study of stellar structure and the history of the Milky Way. Asteroseismology has the power to directly sense the internal structure of stars and allows for the…

The Basel Stellar Library (BaSeL models) is constituted of the merging of various synthetic stellar spectra libraries, with the purpose of giving the most comprehensive coverage of stellar parameters. It has been corrected for systematic…

Space observatories such as $\textit{Kepler}$ have provided data that can potentially revolutionise our understanding of stars. Through detailed asteroseismic analyses we are capable of determining fundamental stellar parameters and reveal…

Solar and Stellar Astrophysics · Physics 2018-02-01 Andrés García Saravia Ortiz de Montellano , Saskia Hekker , Nathalie Themeßl

One of the tasks of the Kepler Asteroseismic Science Operations Center (KASOC) is to provide asteroseismic analyses on Kepler Objects of Interest (KOIs). However, asteroseismic analysis of planetary host stars presents some unique…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 R. Handberg , M. N. Lund

Subject of this paper are intrinsic ellipticity correlations between galaxies, their statistical properties, their observability with future surveys and their interference with weak gravitational lensing measurements. Using an angular…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-25 Bjoern Malte Schaefer , Philipp M. Merkel

Asteroseismology is witnessing a revolution thanks to high-precise asteroseismic space data (MOST, CoRoT, Kepler, BRITE), and their large ground-based follow-up programs. Those instruments have provided an unprecedented large amount of…

Solar and Stellar Astrophysics · Physics 2017-08-23 A. Moya , J. C. Suárez , A. García Hernández , M. A. Mendoza

Elements with weak and blended spectral features in stellar spectra are challenging to measure and require specialized analysis methods to precisely measure their chemical abundances. In this work, we have created a catalog of approximately…

We present results of our 5-years-long program of ground-based spectroscopic and photometric observations of individual Kepler asteroseismic targets and the open clusters NGC6866 and NGC6811 from the Kepler field of view.We determined the…

Due to its unique long-term coverage and high photometric precision, observations from the Kepler asteroseismic investigation will provide us with the possibility to sound stellar cycles in a number of solar-type stars with…

Solar and Stellar Astrophysics · Physics 2015-05-14 C. Karoff , T. S. Metcalfe , W. J. Chaplin , S. Frandsen , F. Grundahl , H. Kjeldsen , D. Buzasi , T. Arentoft , J. Christensen-Dalsgaard

In this work we apply and expand on a recently introduced outlier detection algorithm that is based on an unsupervised random forest. We use the algorithm to calculate a similarity measure for stellar spectra from the Apache Point…

Instrumentation and Methods for Astrophysics · Physics 2018-05-29 Itamar Reis , Dovi Poznanski , Dalya Baron , Gail Zasowski , Sahar Shahaf

A library of 211 echelle spectra taken with ELODIE at the Observatoire de Haute-Provence is presented. It provides a set of spectroscopic standards covering the full range of gravities and metallicities in the effective temperature interval…

Astrophysics · Physics 2009-10-30 C. Soubiran , D. Katz , R. Cayrel

We use asteroseismic data from the Kepler satellite to determine fundamental stellar properties of the 66 main-sequence targets observed for at least one full year by the mission. We distributed tens of individual oscillation frequencies…

The GAIA Galactic survey satellite will obtain photometry in 15 filters of over 10^9 stars in our Galaxy across a very wide range of stellar types. No other planned survey will provide so much photometric information on so many stars. I…

Astrophysics · Physics 2009-11-07 C. A. L. Bailer-Jones

Stellar pulsation offers a unique opportunity to constrain the intrinsic parameters of stars and unveil their inner structure. The Kepler satellite is collecting an enormous amount of data of unprecedent photometric precision, which will…

Solar and Stellar Astrophysics · Physics 2010-06-30 G. Catanzaro , A. Frasca , J. Molenda-Zakowicz , E. Marilli

Kepler is a NASA mission designed to detect exoplanets and characterize the properties of exoplanetary systems. Kepler also includes an asteroseismic programme which is being conducted through the Kepler Asteroseismic Science Consortium…

Solar and Stellar Astrophysics · Physics 2015-05-19 H. Kjeldsen , J. Christensen-Dalsgaard , R. Handberg , T. M. Brown , R. L. Gilliland , W. J. Borucki , D. Koch

We briefly review progress in developing a pathway to nonlinear astereoseismology, both from theoretical and observational aspects. As predicted by the theory of weak nonlinear interactions between resonant modes, their amplitude and…

Solar and Stellar Astrophysics · Physics 2023-02-07 Weikai Zong , Stéphane Charpinet , Gérard Vauclair , Jian-Ning Fu , Xiao-Yu Ma

The Spectral and Photometric Imaging Receiver (SPIRE) was launched as one of the scientific instruments on board of the space observatory Herschel. The SPIRE photometer opened up an entirely new window in the Submillimeter domain for large…

Asteroseismology of solar-type stars has entered a new era of large surveys with the success of the NASA \textit{Kepler} mission, which is providing exquisite data on oscillations of stars across the Hertzprung-Russell (HR) diagram. From…

We introduce our PhD project in which we focus on pulsating stars in eclipsing binaries. The combination of high-precision Kepler photometry with high-resolution HERMES spectroscopy allows for detailed descriptions of our sample of target…

Solar and Stellar Astrophysics · Physics 2014-02-03 V. S. Schmid , J. Debosscher , P. Degroote , C. Aerts