Results 101 to 110 of about 7,730,975 (288)

Toward a Comprehensive Grid of Cepheid Models with MESA. III. Evolutionary and Pulsation Relations for Models with Core and Envelope Overshooting

The Astrophysical Journal Supplement Series
Evolutionary tracks for 2–8 M _⊙ models, covering a [Fe/H] = −1.0 ( Z = 0.0014) to [Fe/H] = +0.2 ( Z = 0.02) metallicity range, are computed with Modules for Experiments in Stellar Astrophysics, MESA , to investigate evolutionary and pulsation properties
Radoslaw Smolec, Oliwia Ziółkowska, Rajeev Singh Rathour, Vincent Hocdé, Piotr Wielgórski   +4 more
doaj   +1 more source

Going viral − Virus‐targeting nanobodies for research, diagnostics and therapy

FEBS Letters, EarlyView.
The increasing prevalence of viral diseases represents a major threat for global human health. Nanobodies, small binding fragments derived from camelid heavy‐chain antibodies, offer versatile tools for viral research, diagnostics, and antiviral therapy.
Domenic Ebert, Ulrich Rothbauer
wiley   +1 more source

Influence of surface stressing on stellar coronae and winds [PDF]

, 2013
STFC funding has supported this research.The large-scale field of the Sun is well represented by its lowest energy (or potential) state. Recent observations, by comparison, reveal that many solar-type stars show large-scale surface magnetic fields that ...
Morin, J., Fares, R., Jardine, Moira, Donati, J. -F., Jardine, M., Morin, Julien, Fares, Rim, Donati, J.-F., Vidotto, A. A., Donati, Jean-François, Gombosi, T. I., van Ballegooijen, A., Gombosi, Tamas I., Jardine, M.; id_orcid   +13 more
core   +1 more source

Predicting photospheric UV emission from stellar evolutionary models

Stellar ultraviolet (UV) emission serves as a crucial indicator for estimating magnetic activity and evaluating the habitability of exoplanets orbiting stars. In this paper, we present a straightforward method to derive stellar photospheric UV emission for F to M main-sequence stars.
Wang, Song, Li, Xue, Han, Henggeng, Liu, Jifeng   +3 more
openaire   +2 more sources

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source

The Impact of Irradiation on the Radius and Thermal Evolution of Transiting Brown Dwarfs

The Astrophysical Journal
Masses and radii of transiting brown dwarfs can be measured directly, in contrast to isolated field brown dwarfs, whose mass and radius inferences are model dependent.
Sagnick Mukherjee, Jonathan J. Fortney, Theron W. Carmichael, C. Evan Davis, Daniel P. Thorngren   +4 more
doaj   +1 more source

Evolutionary sequences of stellar models of intermediate and high mass including convective core overshooting

The Astrophysical Journal Supplement Series, 1991
Stellar evolution with parameterized overshooting from the convective core has been studied for the stellar mass range M/M(solar) = 3-30 and for the initial chemical composition range Xe = 0.650-0.739 (hydrogen) and Ze = 0.021-0.044 (metals). Evolutionary sequences run from the zero-age main sequence to the end of core helium burning, but emphasis is ...
Chao-Wen Chin, Richard B. Stothers
openaire   +1 more source

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

FEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim, Thi Thanh Mai Tran, Nakyung Kang, Min‐Woo Lee, Mihye Lee   +4 more
wiley   +1 more source

The impact of alpha/Fe enhanced stellar evolutionary tracks on the ages of elliptical galaxies [PDF]

, 2003
We complement our study of $\alpha/{\rm Fe}$ enhanced stellar population models of Lick absorption indices (Thomas et al. [CITE]) by comparing two sets of $\alpha/{\rm Fe}$ enhanced models. In both models the impact on Lick indices due to $\alpha/{\rm Fe}
D. Thomas, Thomas, D., Maraston, C., C. Maraston   +3 more
core   +1 more source

On Convective Turnover Times and Dynamos in Low-mass Stars

The Astrophysical Journal
The relationship between magnetic activity and Rossby number is one way through which stellar dynamos can be understood. Using measured rotation rates and X-ray to bolometric luminosity ratios of an ensemble of stars, we derive empirical convective ...
Seth Gossage, Rocio Kiman, Kristina Monsch, Amber A. Medina, Jeremy J. Drake, Cecilia Garraffo, Yuxi(Lucy) Lu, Joshua D. Wing, Nicholas J. Wright   +8 more
doaj   +1 more source