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Abridged. Our aim is to measure the masses and radii of the stars in a newly-discovered detached eclipsing binary system to a high precision ($\approx$1%), enabling the system to be used for the calibration of free parameters in stellar…

Solar and Stellar Astrophysics · Physics 2018-08-01 J. A. Kirkby-Kent , P. F. L. Maxted , A. M. Serenelli , D. R. Anderson , C. Hellier , R. G. West

Observations of binaries have traditionally provided the means for ascertaining stellar masses. Here, we use the published data on 8 pre-main-sequence pairs to gauge the accuracy of our own, recently calculated, evolutionary tracks (Palla &…

Astrophysics · Physics 2007-05-23 Francesco Palla , Steven W. Stahler

We present the results of age determination for galactic B-type main sequence stars which are components of double-lined eclipsing binaries. Only detached systems are considered. We analyze 38 binary systems that meet such criteria. The…

Solar and Stellar Astrophysics · Physics 2020-01-08 J. Daszyńska-Daszkiewicz , A. Miszuda

Eclipsing binary systems are significant objects for astrophysics in that direct observations can determine the fundamental parameters of stars. In this study, we determined precisely the fundamental parameters of the binary component stars…

Solar and Stellar Astrophysics · Physics 2024-06-04 S. Evcil , S. Adalali , N. Alan , R. Canbay , S. Bilir

The low energy fusion cross sections of charged-particle nuclear reactions (and the respective reaction rates) in stellar plasmas are enhanced due to plasma screening effects. We study the impact of those effects on predictive stellar…

Nuclear Theory · Physics 2009-11-11 Theodore Liolios , Theocharis Kosmas

[abridged] We have assembled a database of stars having both masses determined from measured orbital dynamics and sufficient spectral and photometric information for their placement on a theoretical HR diagram. Our sample consists of 115…

Astrophysics · Physics 2011-05-05 Lynne A. Hillenbrand , Russel J. White

The advent of space-based observatories such as CoRoT and Kepler has enabled the testing of our understanding of stellar evolution on thousands of stars. Evolutionary models typically require five input parameters, the mass, initial Helium…

Solar and Stellar Astrophysics · Physics 2016-09-07 Kuldeep Verma , Shravan Hanasoge , Jishnu Bhattacharya , H M Antia , Ganapathy Krishnamurthi

The accurate measurement of stellar masses over a wide range of galaxy properties is essential for better constraining models of galaxy evolution. Emission line galaxies (ELGs) tend to have better redshift estimates than continuum-selected…

Astrophysics of Galaxies · Physics 2021-05-26 Gautam Nagaraj , Robin Ciardullo , Alex Lawson , William Bowman , Gregory Zeimann , Guang Yang , Caryl Gronwall

We derive stellar masses from SED fitting to rest-frame optical and UV fluxes for 401 star-forming galaxies at z 4, 5, and 6 from Hubble-WFC3/IR observations of the ERS combined with the deep GOODS-S Spitzer/IRAC data (and include a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Valentino Gonzalez , Ivo Labbe , Rychard Bouwens , Garth Illingworth , Marijn Franx , Mariska Kriek

Stellar models utilising one-dimensional (1D), heuristic theories of convection fail to adequately describe the energy transport in superadiabatic layers. The improper modelling leads to well-known discrepancies between observed and…

Solar and Stellar Astrophysics · Physics 2019-10-23 Andreas Christ Sølvsten Jørgensen , George C. Angelou

Asteroseismology, the study of stellar oscillations, and stellar modeling both offer profound insights into the fundamental properties and evolution of stars. With pySYD, a new open-source Python package, we were able to constrain the…

Solar and Stellar Astrophysics · Physics 2025-09-17 Sophia Grusnis , Jamie Tayar , Diego Godoy-Rivera

Modeling binary star populations is critical to linking the theories of star formation and stellar evolution with observations. In order to test these theories, we need accurate models of observable binary populations. The Kepler Eclipsing…

Solar and Stellar Astrophysics · Physics 2021-03-24 Mark Wells , Andrej Prša

Using observed stellar mass functions out to $z=5$, we measure the main progenitor stellar mass growth of descendant galaxies with masses of $\log{M_{*}/M_{\odot}}=11.5,11.0,10.5,10.0$ at $z\sim0.1$ using an evolving cumulative number…

Astrophysics of Galaxies · Physics 2017-11-08 Allison R. Hill , Adam Muzzin , Marijn Franx , Danilo Marchesini

We present a new tool for the photometric estimate of stellar masses in distant galaxies. The observed SEDs are fitted by combining single stellar populations, with different SFRs and amounts of dust extinction. This approach gives us the…

We present the public release of the stellar mass catalogs for the GOODS-S and UDS fields obtained using some of the deepest near-IR images available, achieved as part of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey…

We present results of high-resolution spectroscopic observations of detached eclipsing binaries (DEBs) with total eclipses, for which UVES spectra were obtained during the phase of totality. With the additional, independent information on…

Solar and Stellar Astrophysics · Physics 2024-11-13 Krzysztof G. Hełminiak , Justyna Olszewska , Maria Puciata-Mroczynska , Tilaksingh Pawar

We present a new stellar evolution code and a set of results, demonstrating its capability at calculating full evolutionary tracks for a wide range of masses and metallicities. The code is fast and efficient, and is capable of following…

Astrophysics · Physics 2009-11-13 Attay Kovetz , Ofer Yaron , Dina Prialnik

We assess the systematic uncertainties in stellar evolutionary calculations for low- to intermediate-mass, main-sequence stars. We compare published stellar tracks from several different evolution codes with our own tracks computed using…

Solar and Stellar Astrophysics · Physics 2016-02-17 R. J. Stancliffe , L. Fossati , J. -C. Passy , F. R. N. Schneider

Detached eclipsing binaries (DEBs) allow for the possibility of precise characterization of its stellar components. They offer a unique opportunity to derive their physical parameters in a near-model-independent way for a number of systems…

The purpose of this work is to extend a sample of accurately modeled, benchmark-grade eclipsing binaries with accurately determined masses and radii. We select four "well-behaved" Kepler binaries, KIC2306740, KIC4076952, KIC5193386 and…

Solar and Stellar Astrophysics · Physics 2022-12-05 Kelly Hambleton , Andrej Prsa , Scott W. Fleming , Suvrath Mahadevan , Chad F. Bender