Results 51 to 60 of about 37,443 (293)

Cosmological Evolution of Supergiant Star-Forming Clouds [PDF]

, 2001
In an exploration of the birthplaces of globular clusters, we present a careful examination of the formation of self-gravitating gas clouds within assembling dark matter haloes in a hierarchical cosmological model.
Black J. H., Bower R. G., Efstathiou G., Fall S. M., Gingold R. A., Lacey C., Melinda L. Weil, Oort J. H., Ralph E. Pudritz, Steinmetz M., Weil M. L., White S. D. M   +11 more
core   +2 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Star-crossed Clusters: Asteroseismic Ages for Individual Stars Are in Tension with the Ages of Their Host Clusters

The Astrophysical Journal Letters
A meta-analysis of seismic ages determined for individual stars in the well-studied open and globular clusters NGC 6819, NGC 6791, M67, M4, M19, M80, and M9 reveals both high variance across measurements and a possible discrepancy with independent ...
Jamie Tayar, Meridith Joyce
doaj   +1 more source

r-process Abundance Patterns in the Globular Cluster M92

The Astrophysical Journal, 2023
Whereas light-element abundance variations are a hallmark of globular clusters, there is little evidence for variations in neutron-capture elements. A significant exception is M15, which shows a star-to-star dispersion in neutron-capture abundances of at
Evan N. Kirby, Alexander P. Ji, Mikhail Kovalev   +2 more
doaj   +1 more source

Formation of Globular Clusters in Galaxy Mergers

, 2004
We present a high-resolution simulation of globular cluster formation in a galaxy merger. For the first time in such a simulation, individual star clusters are directly identified and followed on their orbits.
Bate M., Bate M. R., Mordecai-Mark Mac Low, Ralf S. Klessen, Steinmetz M., White S. D. M., Yuexing Li   +6 more
core   +1 more source

Collisional Hardening of Compact Binaries in Globular Clusters [PDF]

, 2006
We consider essential mechanisms for orbit-shrinkage or "hardening" of compact binaries in globular clusters to the point of Roche-lobe contact and X-ray emission phase, focussing on the process of collisional hardening due to encounters between binaries
Angelini, Clayton, D'Inverno, Ghosh, Goodman, Gradshteyn, Heggie, Hut, Hut, Hut, Hut, Kippenhan, Kraicheva, P. Ghosh, Paczyński, Podsiadlowski, Pooley, Portegies Zwart, Portegies Zwart, S. Banerjee, Shull, Spitzer, Spruit, Van Den Heuvel, Van Den Heuvel, Van Der Sluys, Verbunt, Verbunt, Verbunt, Verbunt, White   +30 more
core   +3 more sources

Massive star archeology in globular clusters [PDF]

Proceedings of the International Astronomical Union, 2014
AbstractGlobular clusters are among the oldest structures in the Universe and they host today low-mass stars and no gas. However, there has been a time when they formed as gaseous objects hosting a large number of short-lived, massive stars. Many details on this early epoch have been depicted recently through unprecedented dissection of low-mass ...
Chantereau, W., Charbonnel, C., Meynet, G.   +2 more
openaire   +4 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Detailed Abundances of 15 Stars in the Metal-Poor Globular Cluster NGC 4833 [PDF]

, 2015
We have observed 15 red giant stars in the relatively massive, metal-poor globular cluster NGC 4833 using the Magellan Inamori Kyocera Echelle spectrograph at Magellan.
Roederer, Ian U., Thompson, Ian B.
core   +1 more source

Search for variable stars in globular clusters [PDF]

Symposium - International Astronomical Union, 1986
A program to search poorly studied southern globular clusters for variable stars is being carried out on the 1-m Yale telescope at CTIO. Recently two galactic bulge clusters of moderately high metallicity have been found to contain RR Lyrae variables; a cluster of similar metallicity a little farther from the galactic center apparently has none.
openaire   +1 more source