Results 111 to 120 of about 2,833,165 (330)

A study of stellar population of intermediate-age globular cluster NGC 2249

Results in Physics, 2020
The Large Magellanic Cloud (LMC) star cluster NGC 2249 has been found to exhibit an extended main-sequence turn-off (eMSTO) in the color-magnitude diagram (CMD) derived from the data of the Hubble Space Telescope (HST).
Zhongmu Li, Rainer Spurzem, Caiyan Mao, Yingxin Ma, Yangyang Deng   +4 more
doaj   +1 more source

Stellar populations in a standard ISOGAL field in the Galactic disk

, 2008
We aim to identify the stellar populations (mostly red giants and young stars) detected in the ISOGAL survey at 7 and 15micron towards a field (LN45) in the direction l=-45, b=0.0.
A. Omont, Alard, Alcock, Allen, Benjamin, Benjamin, Bertelli, Cesarsky, Dame, Drimmel, Dutra, F. Schuller, Felli, Felli, Flaherty, Frogel, G. Simon, Glass, Groenewegen, Indebetouw, Jiang, Jiang, K. S. Baliyan, Kerber, Le Bertre, López-Corredoira, M. Schultheis, Marshall, McCallon, Morgan, Neckel, Ojha, Omont, Omont, Palanque-Delabrouille, Perault, Price, Robin, Román-Zúñiga, Russeil, S. Ganesh, Schuller, Schuller, Schultheis, Schultheis, Schultheis, U. C. Joshi, Wainscoat, Werner, Whitelock   +49 more
core   +3 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc

The Astrophysical Journal Letters
It is well known that almost all isolated dwarf galaxies are actively forming stars. We report the discovery of dw1322m2053 (nicknamed Hedgehog), an isolated quiescent dwarf galaxy at a distance of 2.40 ± 0.15 Mpc with a stellar mass of M _⋆ ≈ 10 ^5.8 M ...
Jiaxuan Li, Jenny E. Greene, Scott G. Carlsten, Shany Danieli   +3 more
doaj   +1 more source

Parameters of Herbig Ae/Be and Vega-type stars

, 2008
This work presents the determination of the effective temperature, gravity, metallicity, mass, luminosity and age of 27 young early-type stars, most of them in the age range 1-10 Myr, and three -suspected- hot companions of post-T Tauri stars belonging ...
A. Mora, Acke, Adelman, Alexander, Altenhoff, Anders, B. Merín, B. Montesinos, Beckwith, Blondel, C. Eiroa, Cardelli, D'Antona, Dunkin, Dunkin, Finkenzeller, Gerbaldi, Girardi, Grinin, Grinin, Grinin, Guimarães, Haisch, Herbst, Hernández, Hernández, Hernández, Hillenbrand, Hughes, Kenyon, Kovalchuk, Kurosawa, Lindroos, Manoj, Mayor, Muzerolle, Palla, Paunzen, Pontoppidan, Pontoppidan, Ripepi, Sbordone, Schaller, Sicilia-Aguilar, Siess, Straizys, Thi, Thé, van Leeuwen, Venn, Wyatt, Yi   +51 more
core   +2 more sources

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Mapping the Distant and Metal-poor Milky Way with SDSS-V

The Astrophysical Journal
The fifth-generation Sloan Digital Sky Survey (SDSS-V) is conducting the first all-sky low-resolution spectroscopic survey of the Milky Way’s (MW) stellar halo.
Vedant Chandra, Phillip A. Cargile, Alexander P. Ji, Charlie Conroy, Hans-Walter Rix, Emily Cunningham, Bruno Dias, Chervin Laporte, William Cerny, Guilherme Limberg, Avrajit Bandyopadhyay, Ana Bonaca, Andrew R. Casey, John Donor, José G. Fernández-Trincado, Peter M. Frinchaboy, Pramod Gupta, Keith Hawkins, Jennifer A. Johnson, Juna A. Kollmeier, Madeline Lucey, Ilija Medan, Szabolcs Mészáros, Sean Morrison, José Sánchez-Gallego, Andrew K. Saydjari, Conor Sayres, Kevin C. Schlaufman, Keivan G. Stassun, Jamie Tayar, Zachary Way   +30 more
doaj   +1 more source

The Steady State Wind Model for Young Stellar Clusters with an Exponential Stellar Density Distribution

, 2011
A hydrodynamic model for steady state, spherically-symmetric winds driven by young stellar clusters with an exponential stellar density distribution is presented.
Bisnovatyi-Kogan, Böker, Cantó, Gennadiy Bisnovatyi-Kogan, Guillermo Tenorio-Tagle, Law, Leitherer, Moffat, Raga, Rockefeller, Rupke, Sergio Martínez-González, Sergiy Silich, Silich, Silich, Silich, Silich, Tenorio-Tagle, Townsley, Turner, Walcher, Wünsch, Wünsch   +22 more
core   +1 more source

Surface Brightness Fluctuations from Archival ACS Images: A Stellar Population and Distance Study [PDF]

, 2007
We derive surface brightness fluctuations (SBF) and integrated magnitudes in the V and I bands using Advanced Camera for Surveys (ACS) archival data. The sample includes 14 galaxies covering a wide range of physical properties: morphology, total absolute
M. Cantiello, J. Blakeslee, G. Raimondo, E. Brocato, M. Capaccioli   +4 more
semanticscholar   +1 more source

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

Molecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra, Shamsudheen Karuthedath Vellarikkal, Lixia Li, Hong Sun, Khoa Nguyen, Amber Montano, Suchitra Natarajan, Federica Piccioni, Alex Michael Tamburino, Xin Yu, Aleksandra Katarzyna Olow   +10 more
wiley   +1 more source