Results 91 to 100 of about 1,635,352 (355)

Building up the Population III initial mass function from cosmological initial conditions [PDF]

open access: yes, 2016
We simulate the growth of a Population III stellar system, starting from cosmological initial conditions at z=100. We follow the formation of a minihalo and the subsequent collapse of its central gas to high densities, resolving scales as small as ~ 1 AU.
A. Stacy, V. Bromm, Aaron T. Lee
semanticscholar   +1 more source

Autophagy in cancer and protein conformational disorders

open access: yesFEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

The Initial Mass Function of the Galactic Early-type Field Stars Based on the LAMOST Survey

open access: yesThe Astrophysical Journal
Research on the high-mass end of the initial mass function (IMF) has been limited due to a scarcity of samples. Recently, Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), as the most efficient spectroscopic telescope, has provided new ...
Qida Li   +6 more
doaj   +1 more source

The relationship between the prestellar core mass function and the stellar initial mass function [PDF]

open access: yesAstronomy & Astrophysics, 2007
7 pages, 3 figures, A&A in ...
D. Nutter   +4 more
openaire   +6 more sources

BANYAN. IX. The Initial Mass Function and Planetary-mass Object Space Density of the TW HYA Association [PDF]

open access: yes, 2016
A determination of the initial mass function (IMF) of the current, incomplete census of the 10 Myr-old TW Hya association (TWA) is presented. This census is built from a literature compilation supplemented with new spectra and 17 new radial velocities ...
J. Gagn'e   +17 more
semanticscholar   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Intense Star Cluster Formation: Stellar Masses, the Mass Function, and the Fundamental Mass Scale

open access: yesThe Astrophysical Journal Letters
Within the birth environment of a massive globular cluster, the combination of a luminous young stellar population and a high column density induces a state in which the thermal optical depth and radiation pressure are both appreciable.
Christopher D. Matzner
doaj   +1 more source

A perturbed parameter model ensemble to investigate Mt. Pinatubo's 1991 initial sulfur mass emission [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
We have performed more than 300 atmospheric simulations of the 1991 Pinatubo eruption using the AER 2-D sulfate aerosol model to optimize the initial sulfur mass injection as a function of altitude, which in previous modeling studies has often been ...
J.-X. Sheng   +5 more
doaj   +1 more source

On the mass-to-light ratio and the initial mass function in disc galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
A low mass-to-light ratio for the stellar component of spiral galaxies (M/L<1 in the I-band) is advocated by various dynamical arguments and by recent cosmological simulations of the formation of these systems. We discuss this possibility by means of chemo-photometric models for galactic discs, adopting different Initial Mass Functions. We show that
Portinari, L.   +2 more
openaire   +3 more sources

The Initial Mass Function in the Nearest Strong Lenses from SNELLS: Assessing the Consistency of Lensing, Dynamical, and Spectroscopic Constraints [PDF]

open access: yes, 2016
We present new observations of the three nearest early-type galaxy (ETG) strong lenses discovered in the SINFONI Nearby Elliptical Lens Locator Survey (SNELLS).
A. Newman   +4 more
semanticscholar   +1 more source

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