Results 71 to 80 of about 143,610 (241)
Tracing Galaxy Evolution in the Nearby Universe: The Role of Dark Matter
The Astronomical JournalUsing a sample of ∼126,000 late-type galaxies (LTGs) from the Sloan Digital Sky Survey, we analyzed stellar mass as a function of the dynamical mass. Stellar masses are estimated using eight stellar population synthesis (SPS) models with constant initial
A. Nigoche-Netro +8 more
doaj +1 more source
Pop III Stellar Masses and IMF
, 2010 We provide a status report on our current understanding of the mass scales for Pop III.1 and Pop III.2 stars. Since the last review (Norman 2008), substantial progress has been made both numerically and analytically on the late stages of protostellar ...
Norman, Michael L.
core +1 more source
Peptide‐based ligand antagonists block a Vibrio cholerae adhesin
FEBS Letters, EarlyView.The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang +9 more
wiley +1 more source
TESS Asteroseismic Masses and Radii of Red Giants with (and without) Planets
The Astrophysical JournalWe present a study of asteroseismically derived surface gravities, masses, and radii of a sample of red giant stars both with and without confirmed planetary companions using TESS photometric light curves. These red giants were drawn from radial velocity
Myles Pope +3 more
doaj +1 more source
Stochasticity in Star Clusters: Reduced Random Sampling Method
Open Astronomy, 2014 This paper aims to contribute to the debate taking place nowadays on the two extreme schemes of sampling the stellar masses within star clusters, known as Optimal Sampling and Random Sampling.
de Meulenaer P. +3 more
doaj +1 more source
Filamentary Star Formation in NGC 1275 [PDF]
, 2014 We examine the star formation in the outer halo of NGC~1275, the central galaxy in the Perseus cluster (Abell 426), using far ultraviolet and optical images obtained with the Hubble Space Telescope.
Canning, R. E. A +10 more
core +2 more sources
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
The Astrophysical JournalDue to their inability to self-regulate, ultrafaint dwarfs are sensitive to prescriptions in subgrid physics models that converge and regulate at higher masses.
Bianca Azartash-Namin +8 more
doaj +1 more source
Intrinsic stellar mass flux and steady stellar winds
The Astrophysical Journal, 1982 The conventional view that winds from stars like the Sun result from the existence of a hot corona and a low-pressure interstellar medium has recently been challeanged by R. N. Thomas and collegues. They suggest that the rates of mass loss from these and other stars are determined by conditions imposed on the flow at or below photospheric levels and ...
R. L. T. Wolfson, T. E. Holzer
openaire +1 more source
A STEEPER THAN LINEAR DISK MASS–STELLAR MASS SCALING RELATION [PDF]
The Astrophysical Journal, 2016 ABSTRACT The disk mass is among the most important input parameter for every planet formation model to determine the number and masses of the planets that can form. We present an ALMA 887 μm survey of the disk population around objects from ∼2 to 0.03 M ⊙ in the nearby ∼2 Myr old Chamaeleon I star-forming region.
I. Pascucci +15 more
openaire +7 more sources