Results 51 to 60 of about 14,785 (302)

Dartmouth Stellar Evolution Emulator (DSEE). 1. Generative Stellar Evolution Model Database

The Astrophysical Journal
We present the Dartmouth Stellar Evolution Emulator (DSEE), a flow-based stellar evolution model emulator trained on a comprehensive database comprising over eight million evolutionary tracks that vary across 20 input-physics dimensions and span broad ...
Jiaqi (Martin) Ying, Brian Chaboyer, Phillip A. Cargile, Wenxin Du, George Dufresne   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Optical & X-ray Studies of Ultraluminous X-ray Sources [PDF]

, 2009
Ultraluminous X-ray Sources (ULXs) are point like X-ray sources situated external to the nucleus of their host galaxy, with inferred X-ray luminosities in excess of 10^{39} erg s^{−1} .
Gladstone, Jeanette Claire, GLADSTONE, JEANETTE,CLAIRE   +1 more
core  

Homogeneous spectroscopic parameters for bright planet host stars from the northern hemisphere. The impact on stellar and planetary mass

, 2015
This work is supported by the European Research Council/European Community under the FP7 through Starting Grant agreement number 239953. N.C.S. was supported by FCT through the Investigador FCT contract reference IF/00169/2012 and POPH/FSE (EC) by FEDER ...
Mortier, Annelies, A. Mortier, Sousa, S. G., Santos, N. C., V. Adibekyan, S. G. Sousa, Neves, V., Delgado Mena, E., B. Rojas-Ayala, E. Delgado Mena, Mortier, A.; id_orcid, Tsantaki, M., M. Tsantaki, N. C. Santos, Rojas-Ayala, B., G. Israelian, Israelian, G., Adibekyan, V., V. Neves   +18 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

M-dwarf stellar winds : the effects of realistic magnetic geometry on rotational evolution and planets

, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship. JM acknowledges support from a fellowship of the Alexander von Humboldt foundation.We perform three-dimensional numerical simulations of stellar winds of early-M-dwarf stars.
Morin, J., Gombosi, T.I., Donati, J.F., Opher, M., Gombosi, Tamás, Jardine, M., Morin, Julien, Gombosi, T. I., Vidotto, A. A., Vidotto, A.A., Donati, J. F., Gombosi, Tamas I.   +11 more
core   +1 more source

Introduction to stellar evolution [PDF]

, 2016
This contribution is meant as a first brief introduction to stellar physics. First I shortly describe the main physical processes active in stellar structures then I summarize the most important features during the stellar life ...
DEGL'INNOCENTI, SCILLA
core   +1 more source

Physical mechanisms of mixing in stellar interiors [PDF]

Symposium - International Astronomical Union, 1984
The different mechanisms by which mixing can take place in stellar interiors are considered : the classical Rayleigh-Benard instability with penetrative convection and over-shooting, semi-convection, gravitationnal and radiative settling, turbulent mixing.
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Modules for Experiments in Stellar Astrophysics (MESA): Time-dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure

The Astrophysical Journal Supplement Series, 2023
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics ( MESA ). The new auto _ diff module implements automatic differentiation in MESA , an enabling capability that alleviates the need for ...
Adam S. Jermyn, Evan B. Bauer, Josiah Schwab, R. Farmer, Warrick H. Ball, Earl P. Bellinger, Aaron Dotter, Meridith Joyce, Pablo Marchant, Joey S. G. Mombarg, William M. Wolf, Tin Long Sunny Wong, Giulia C. Cinquegrana, Eoin Farrell, R. Smolec, Anne Thoul, Matteo Cantiello, Falk Herwig, Odette Toloza, Lars Bildsten, Richard H. D. Townsend, F. X. Timmes   +21 more
doaj   +1 more source