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A better understanding of the amplitudes of stellar oscillation modes and surface granulation is essential for improving theories of mode physics and the properties of the outer convection zone of solar-like stars. A proper prediction of…

太阳与恒星天体物理 · 物理学 2019-07-31 Mikkel N. Lund

The ~ 200,000 stars observed by the Kepler mission have provided unprecedented constraints across astrophysics. With the advent of modern spectroscopic and photometric surveys, new limits in stellar characterizations are within reach. In…

We derive bolometric correction functions for oscillation mode amplitudes observed by the different cameras of the ESA PLATO mission. Such corrections between bolometric (full light) and mission instrument-specific amplitudes enable…

太阳与恒星天体物理 · 物理学 2026-03-16 Mikkel N. Lund , Jérôme Ballot , William J. Chaplin

We have investigated the relevant trend of the bolometric correction (BC) at the cool-temperature regime of red giant stars and its possible dependence on stellar metallicity. Our analysis relies on a wide sample of optical-infrared…

太阳与恒星天体物理 · 物理学 2015-05-18 A. Buzzoni , L. Patelli , M. Bellazzini , F. Fusi Pecci , E. Oliva

Solar-like oscillations have been observed by Kepler and CoRoT in many solar-type stars, thereby providing a way to probe the stars using asteroseismology. We provide the mode linewidths and mode heights of the oscillations of various stars…

Asteroseismology of F-type stars has been hindered by an ambiguity in identification of their oscillation modes. The regular mode pattern that makes this task trivial in cooler stars is masked by increased linewidths. The absolute mode…

We present new grids of colors and bolometric corrections for F-K stars having 4000 K < Teff < 6500 K, 0.0 < log g < 4.5 and -3.0 < [Fe/H] < 0.0. A companion paper extends these calculations into the M giant regime. Colors are tabulated for…

天体物理学 · 物理学 2009-10-12 Mark L. Houdashelt , Roger A. Bell , Allen V. Sweigart

We provide three statistical model prescriptions for the bolometric corrections appropriate for B-type stars as a function of: 1) T_eff, 2) T_eff, log g, and 3) T_eff, log g, [M/H]. These statistical models have been calculated for 27…

太阳与恒星天体物理 · 物理学 2020-06-10 May G. Pedersen , Ana Escorza , Peter I. Papics , Conny Aerts

We present new calibrations of stellar parameters of O stars at solar metallicity taking non-LTE, wind, and line-blanketing effects into account. Gravities and absolute visual magnitudes are derived from results of recent spectroscopic…

天体物理学 · 物理学 2009-05-29 F. Martins , D. Schaerer , D. J. Hillier

Bolometric corrections are used in quasar studies to quantify total energy output based on a measurement of a monochromatic luminosity. First, we enumerate and discuss the practical difficulties of determining such corrections, then we…

宇宙学与河外天体物理 · 物理学 2015-06-03 Jessie C. Runnoe , Michael S. Brotherton , Zhaohui Shang

Solar-like oscillations have been observed by {{\it Kepler}} and CoRoT in several solar-type stars. We study the variations of stellar p-mode linewidth as a function of effective temperature. Time series of 9 months of Kepler data have been…

Main-sequence bolometric corrections (BC) and a standard BC-Teff relation are produced for TESS wavelengths using published physical parameters and light ratios from SED models of 209 detached double-lined eclipsing binaries. This and…

太阳与恒星天体物理 · 物理学 2023-05-31 Zeki Eker , Volkan Bakis

A method of obtaining bolometric corrections ($BC_{\rm V}$) from observed high-resolution, high-$S/N$ spectra is described. The method is applied to spectra of 128 stars collected from the literature with well-determined effective…

太阳与恒星天体物理 · 物理学 2025-11-12 Gökhan Yücel , Selçuk Bilir , Volkan Bakış , Zeki Eker

We perform a study of 62 solar analog stars to compute their effective temperatures (Teff) using the Balmer line wing fitting procedure and compare them with Teff values obtained using other commonly employed methods. We use observed…

太阳与恒星天体物理 · 物理学 2012-06-06 D. Cornejo , I. Ramirez , P. S. Barklem

Reported are UBV and uvbybeta observations of 15 candidates for Kepler primary astero- seismic targets and 14 other stars in the Kepler field, carried out at the M.G. Fracastoro station of the Catania Astrophysical Observatory. These data…

太阳与恒星天体物理 · 物理学 2009-07-07 J. Molenda-Zakowicz , M. Jerzykiewicz , A. Frasca

We describe the photometric calibration and stellar classification methods used to produce the Kepler Input Catalog (KIC). The KIC is a catalog containing photometric and physical data for sources in the Kepler Mission field of view; it is…

太阳与恒星天体物理 · 物理学 2015-05-27 Timothy M. Brown , David W. Latham , Mark E. Everett , Gilbert A. Esquerdo

We present infrared bolometric luminosity corrections derived from the detailed spectral energy distributions of 62 bright quasars of low- to moderate-redshift (z=0.03-1.4). At 1.5, 2, 3, 7, 12, 15, and 24 microns we provide bolometric…

宇宙学与河外天体物理 · 物理学 2015-06-05 Jessie C. Runnoe , Michael S. Brotherton , Zhaohui Shang

Context: Mode identification is a crucial step to comparing observed frequencies with theoretical ones, but has proven to be difficult in rapidly rotating stars. Aims: To further constrain mode identification, we aim to accurately calculate…

太阳与恒星天体物理 · 物理学 2015-06-12 D. R. Reese , V. Prat , C. Barban , C. van 't Veer-Menneret , K. B. MacGregor

We utilize Kepler data to study the precision differential photometric variability of solar-type and cooler stars at different timescales, ranging from half an hour to 3 months. We define a diagnostic that characterizes the median…

太阳与恒星天体物理 · 物理学 2016-03-02 Gibor Basri , Lucianne Walkowicz , Ansgar Reiners

Context. In order to determine stellar luminosities and radii, it is necessary to know the total bolometric fluxes emitted by the stars, or equivalently the bolometric corrections (BCs) as accurately as possible. Aims. The aim of this paper…

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