Results 41 to 50 of about 6,001 (306)
On Stellar Models with Blanketed Atmospheres as Boundary Conditions [PDF]
, 2007 The impact on the predicted Teff scale of using the latest MARCS model atmospheres, instead of a fixed atmospheric structure (e.g., the gray T–τ relation) is examined.
Edvardsson, Bengt, +4 more
core +1 more source
The True Nature of the Brightest Local Triple Stellar Candidates within 100 pc in the Galaxy
The Astronomical Journal, 2023 We present a study of a sample of bright ( V ≤ 10 mag) and close ( d ≤ 100 pc) triple–stellar system candidates in the galaxy, consisting of eight systems in total.
Z. T. Yousef +3 more
doaj +1 more source
Dislocations in Magnetohydrodynamic Waves in a Stellar Atmosphere [PDF]
Physical Review Letters, 2013 We describe the presence of wavefront dislocations in magnetohydrodynamic waves in stratified stellar atmospheres. Scalar dislocations such as edges and vortices can appear in Alfvén waves, as well as in general magneto-acoustic waves. We detect those dislocations in observations of magnetohydrodynamic waves in sunspots in the solar chromosphere ...
A. López Ariste +2 more
openaire +4 more sources
Directional time-distance probing of model sunspot atmospheres [PDF]
, 2015 A crucial feature not widely accounted for in local helioseismology is that surface magnetic regions actually open a window from the interior into the solar atmosphere, and that the seismic waves leak through this window, reflect high in the atmosphere ...
Przybylski, Damien +3 more
core +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
On the Radiative Equilibrium of a Stellar Atmosphere. XXII.
The Astrophysical Journal, 1944 In this paper the methods developed in earlier papers are extended to solving the problem of radiative transfer in curved atmospheres, i.e., to solving the equation of transfer μ∂l/∂r+(1-μ 2 )/r 2 ∂l/∂μ=-κρI+½κρ∫ +1 -1 Idμ, where κρ is a function only of r.
openaire +2 more sources
The classical stellar atmosphere problem
Journal of Computational and Applied Mathematics, 1999 accepted for publication in The Journal of Computational and Applied Mathematics, Computational Astrophysics, eds. H.
Werner, Klaus, Dreizler, Stefan
openaire +2 more sources
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
FEBS Letters, EarlyView.CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens +8 more
wiley +1 more source
The Astrophysical Journal LettersAttempts to probe the atmospheres of rocky planets around M dwarfs present both promise and peril. While their favorable planet-to-star radius ratios enable searches for even thin secondary atmospheres, their high activity levels and high-energy outputs ...
Michael Radica +11 more
doaj +1 more source