Results 31 to 40 of about 166,438,504 (289)

KIC 9028474: A Long-period Eclipsing Binary on a Highly Eccentric Orbit

The Astronomical Journal, 2023
We present a comprehensive analysis of a very long-period (124.93669 days) eclipsing binary KIC 9028474, which is composed of F9V+G1V components on a highly eccentric ( e = 0.82029) orbit.
Orkun Özdarcan
doaj   +1 more source

Accurate fundamental parameters for lower main-sequence stars [PDF]

Monthly Notices of the Royal Astronomical Society, 2006
34 pages, 20 figures. Accepted by MNRAS. Landscape table available online at http://users.utu.fi/luccas/IRFM/
Casagrande, L., Portinari, L., Flynn, C.
openaire   +2 more sources

Revisiting the Red Giant Branch Hosts KOI-3886 and ι Draconis. Detailed Asteroseismic Modeling and Consolidated Stellar Parameters

The Astronomical Journal, 2023
Asteroseismology is playing an increasingly important role in the characterization of red giant host stars and their planetary systems. Here, we conduct detailed asteroseismic modeling of the evolved red giant branch (RGB) hosts KOI-3886 and ι Draconis ...
Tiago L. Campante, Tanda Li, J. M. Joel Ong, Enrico Corsaro, Margarida S. Cunha, Timothy R. Bedding, Diego Bossini, Sylvain N. Breton, Derek L. Buzasi, William J. Chaplin, Morgan Deal, Rafael A. García, Michelle L. Hill, Marc Hon, Daniel Huber, Chen Jiang, Stephen R. Kane, Cenk Kayhan, James S. Kuszlewicz, Jorge Lillo-Box, Savita Mathur, Mário J. P. F. G. Monteiro, Filipe Pereira, Nuno C. Santos, Aldo Serenelli, Dennis Stello   +25 more
doaj   +1 more source

Fundamental parameters of B type stars [PDF]

Proceedings of the International Astronomical Union, 2014
AbstractFundamental parameters of 26 well-studied sharp-lined single early B-type stars in OB associations and in the field within a distance of ≤400 pc from the Sun are compared to high-precision data from detached eclipsing binaries (DEBs). Fundamental parameters are derived from accurate and precise atmospheric parameters determined earlier by us ...
openaire   +1 more source

FUNDAMENTAL PARAMETERS OF MAIN-SEQUENCE STARS IN AN INSTANT WITH MACHINE LEARNING [PDF]

The Astrophysical Journal, 2016
ABSTRACT Owing to the remarkable photometric precision of space observatories like Kepler, stellar and planetary systems beyond our own are now being characterized en masse for the first time. These characterizations are pivotal for endeavors such as searching for Earth-like planets and solar twins, understanding the mechanisms that ...
Earl P. Bellinger, George C. Angelou, Saskia Hekker, Sarbani Basu, Warrick H. Ball, Elisabeth Guggenberger   +5 more
openaire   +5 more sources

The magnetic fields of intermediate-mass T Tauri stars. I. Magnetic detections and fundamental stellar parameters [PDF]

, 2019
International audienceContext : .The origin of the fossil magnetic fields detected in 5 to 10% of intermediate-mass main sequence stars is still highly debated.
Johns-Krull, C., F. Gallet, Lebreton, Y.,, Johns-Krull, C.,, Bouvier, J.,, Petit, P., Haemmerlé, L., Böhm, T., T. Böhm, Charbonnel, C.,, J. Morin, Haemmerle, L.,, Marsden, S. C., Charbonnel, Corinne, Marsden, C., Morin, J., L. Haemmerlé, Kochukhov, Oleg,, Lebreton, Y., Petit, P.,, C. Charbonnel, Charbonnel, C., Alecian, E.,, Amard, L.,, Hussain, G.,, Alecian, E., Morin, J.,, Folsom, C. P.,, G. Hussain, S. C. Marsden, Folsom, C. P., P. Petit, Hussain, G., Amard, L., E. Alecian, C. Johns-Krull, Marsden, S. C.,, L. Amard, J. Bouvier, C. P. Folsom, Villebrun, F.,, Y. Lebreton, Bouvier, J., O. Kochukhov, Gallet, F.,, Folsom, C., Bohm, T.,, Villebrun, F., Gallet, F., Kochukhov, O., F. Villebrun   +50 more
core   +1 more source

Accurate fundamental parameters of eclipsing binary stars [PDF]

Proceedings of the International Astronomical Union, 2004
The study of detached eclipsing binaries is one of the most powerful ways to investigate the properties of individual stars and stellar systems. We present preliminary masses, radii and effective temperatures for the eclipsing binary WW Aurigae, which is composed of two metallic-lined A-type stars.
Southworth, J, Smalley, B, Maxted, PFL, Etzel, PB   +3 more
openaire   +3 more sources

A Spectroscopic Analysis of a Sample of K2 Planet-host Stars: Stellar Parameters, Metallicities and Planetary Radii

The Astrophysical Journal, 2023
The physical properties of transiting exoplanets are connected with the physical properties of their host stars. We present a homogeneous spectroscopic analysis based on the spectra of FGK-type stars observed with the Hydra spectrograph on the WIYN ...
V. Loaiza-Tacuri, Katia Cunha, Verne V. Smith, Cintia F. Martinez, Luan Ghezzi, Simon C. Schuler, Johanna Teske, Steve B. Howell   +7 more
doaj   +1 more source

Fundamental Parameters of CP Stars [PDF]

Highlights of Astronomy, 1998
The quest for accurate fundamental parameters (M, R, Teff log g, v sin i) of CP stars has been a lasting problem ever since the nature and origin of these stars has been discussed. The main reason for the difficulty lies in the anomalous colours of these stars, linked with their abundance anomalies which are responsible for complicated blocking and ...
openaire   +1 more source

The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters [PDF]

, 2017
The use of high-resolution, high signal-to-noise stellar spectra is essential in order to determine the most accurate and precise stellar atmospheric parameters via spectroscopy.
Smalley
core   +1 more source