Results 31 to 40 of about 215,434 (305)

Limb darkening in spherical stellar atmospheres

, 2011
Context. Stellar limb darkening, I(μ = cosθ), is an important constraint for microlensing, eclipsing binary, planetary transit, and interferometric observations, but is generally treated as a parameterized curve, such as ...
H. R. Neilson, J. B. Lester
core   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +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, A. Annuar, Mashhoor A. Al-Wardat, N. S. A. Hamid   +3 more
doaj   +1 more source

CH in stellar atmospheres: an extensive linelist [PDF]

, 2014
The advent of high-resolution spectrographs and detailed stellar atmosphere modelling has strengthened the need for accurate molecular data. Carbon-enhanced metal-poor (CEMP) stars spectra are interesting objects with which to study transitions from the ...
B. Plez, Van Eck, Sophie, Godefroid, M., I. Daoutidis, P. Bernath, Colin, Réginald, N. Christlieb, Bernath, P., Coheur, Pierre, Masseron, Thomas, Plez, B., Masseron, T., Plez, Bertrand, S. Van Eck, Coheur, Pierre-François, Jorissen, Alain, A. Jorissen, M. Godefroid, van Eck, S., Christlieb, N., Eck, S. Van, T. Masseron, Christleib, N., Godefroid, Michel, Colin, R., Daoutidis, Ioannis, Daoutidis, I., P.-F. Coheur, Coheur, P.-F., Jorissen, A., R. Colin   +30 more
core   +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, M. Collados, E. Khomenko   +2 more
openaire   +4 more sources

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

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

The Influences of Stellar Activity on Planetary Atmospheres

, 2016
On evolutionary timescales, the atmospheres of planets evolve due to interactions with the planet's surface and with the planet's host star. Stellar X-ray and EUV (=’XUV’) radiation is absorbed high in the atmosphere, driving photochemistry, heating the ...
Colin P. Johnstone
core   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

Promise and Peril: Stellar Contamination and Strict Limits on the Atmosphere Composition of TRAPPIST-1 c from JWST NIRISS Transmission Spectra

The Astrophysical Journal Letters
Attempts 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, Caroline Piaulet-Ghorayeb, Jake Taylor, Louis-Philippe Coulombe, Björn Benneke, Loic Albert, Étienne Artigau, Nicolas B. Cowan, René Doyon, David Lafrenière, Alexandrine L’Heureux, Olivia Lim   +11 more
doaj   +1 more source