Results 81 to 90 of about 87,149 (376)

High resolution imaging of the early-type galaxy NGC 1380: an insight into the nature of extended extragalactic star clusters [PDF]

open access: yes, 2007
NGC 1380 is a lenticular galaxy located near the centre of the Fornax Cluster northeast of NGC 1399. The globular cluster system of this galaxy was previously studied only from the ground.
Chies-Santos, A. L.   +2 more
core   +2 more sources

Retention fractions for globular cluster neutron stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1996
To appear in MNRAS, 15 pages, LaTeX, requires MN and epsf styles, includes 3 PS Figures, compressed, uuencoded ...
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

A JWST Project on 47 Tucanae: NIRSpec Spectroscopy of Multiple Populations among M Dwarfs

open access: yesThe Astrophysical Journal Letters
We present the first spectroscopic estimates of the chemical abundance of M dwarf stars in a globular cluster (GC), namely 47 Tucanae. By exploiting NIRSpec on board the James Webb Space Telescope, we gathered low-resolution spectra for 28 stars with ...
A. F. Marino   +14 more
doaj   +1 more source

The Colors of Dwarf Elliptical Galaxy Globular Cluster Systems, Nuclei and Stellar Halos

open access: yes, 2004
We present the results of a Hubble Space Telescope WFPC2 F555W and F814W survey of 69 dwarf elliptical galaxies (dEs) in the Virgo and Fornax Clusters and Leo Group.
Arimoto N.   +10 more
core   +1 more source

Resolving Globular Cluster Formation within a Cosmological Context [PDF]

open access: yes, 2009
We place constraints on the formation redshifts for blue globular clusters (BGCs), independent of the details of hydrodynamics and population III star formation.
Aaron C. Boley   +30 more
core   +2 more sources

Organoids in pediatric cancer research

open access: yesFEBS 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

open access: yesThe 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

The influence of residual gas expulsion on the evolution of the Galactic globular cluster system and the origin of the Population II halo

open access: yes, 2007
We present new results on the evolution of the mass function of the globular cluster system of the Milky Way, taking the effect of residual gas expulsion into account.
Bastian   +90 more
core   +1 more source

A Genuine Intermediate-Age Globular Cluster in M33 [PDF]

open access: yes, 2006
We present deep integrated-light spectroscopy of nine M33 globular clusters taken with the Hectospec instrument at the MMT Observatory. Based on our spectroscopy and previous deep color-magnitude diagrams obtained with HST/WFPC2, we present evidence for ...
Ata Sarajedini   +4 more
core   +2 more sources

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