Results 41 to 50 of about 931,455 (366)
Influence of stellar variability on the determination of the radius during a transit of an exoplanet
EPJ Web of Conferences, 2011 Stellar variability can affect the estimate of an exoplanet radius measured during a transit. We developed a transit light curve model which includes stellar spots.
Désert J.-M. +3 more
doaj +1 more source
Microlensing of Extended Stellar Sources [PDF]
, 1998 We investigate the feasibility of reconstructing the radial intensity profile of extended stellar sources by inverting their microlensed light curves. Using a simple, linear, limb darkening law as an illustration, we show that the intensity profile can ...
Coleman, I. J. +4 more
core +2 more sources
Dimension in a Radiative Stellar Atmosphere [PDF]
, 2001 Dimensional scales are examined in an extended 3+1 Vaidya atmosphere surrounding a Schwarzschild source. At one scale, the Vaidya null fluid vanishes and the spacetime contains only a single spherical 2-surface.
B. D. Hughes +26 more
core +2 more sources
Stellar atmosphere parameters with MAx, a MAssive compression of x^2 for spectral fitting [PDF]
, 2010 MAx is a new tool to estimate parameters from stellar spectra. It is based on the maximum likelihood method, with the likelihood compressed in a way that the information stored in the spectral fluxes is conserved.
P. Jofr'e +3 more
semanticscholar +1 more source
, 2018 The German Astrophysical Virtual Observatory (GAVO) developed the registered service TheoSSA (theoretical stellar spectra access) and the supporting registered VO tool TMAW (Tuebingen Model-Atmosphere WWW interface).
Demleitner, M. +3 more
core +1 more source
The Inhomogeneity Effect. I. Inhomogeneous Surface and Atmosphere Accelerate Planetary Cooling
The Astrophysical Journal, 2023 We propose a general principle that under radiative-convective equilibrium, the spatial and temporal variations in a planet’s surface and atmosphere tend to increase its cooling.
Xi Zhang
doaj +1 more source
, 2017 Transit spectroscopy is one of the most commonly used techniques for exoplanet atmosphere characterisation. This technique has been used to detect ionized and neutral species in exoplanet atmospheres by comparing the observed stellar lines in and out of ...
Fosbury, Robert A. E. +4 more
core +1 more source
Radial modes of levitating atmospheres around Eddington-luminosity neutron stars [PDF]
, 2017 We consider an optically thin radiation-supported levitating atmosphere suspended well above the stellar surface, as discussed recently in the Schwarzschild metric for a star of luminosity close to the Eddington value.
Bollimpalli, Deepika Ananda +1 more
core +1 more source
An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots
FEBS Letters, EarlyView.This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino +7 more
wiley +1 more source
Computing Limb-darkening Coefficients from Stellar Atmosphere Models [PDF]
, 2006 We explore the sensitivity of limb-darkening coefficients computed from stellar atmosphere models to different least-squares fitting methods. We demonstrate that conventional methods are strongly biased to fitting the stellar limb.
D. Heyrovský
semanticscholar +1 more source