Results 91 to 100 of about 334,935 (372)
Are there S stars in galactic globular clusters? [PDF]
Monthly Notices of the Royal Astronomical Society, 1984 Deux etoiles geantes rouges dans NGC 6723 montrent des bandes ZrO augmentees. Comparaisons avec les geantes de 47 Tuc et analogie avec les etoiles des Nuages de Magellan.
openaire +2 more sources
The E-MOSAICS project: tracing galaxy formation and assembly with the age–metallicity distribution of globular clusters [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present 25 cosmological zoom-in simulations of Milky Way-mass galaxies in the `MOdelling Star cluster population Assembly In Cosmological Simulations within EAGLE' (E-MOSAICS) project.
J. Kruijssen +3 more
semanticscholar +1 more source
FEBS Letters, EarlyView.The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva +1 more
wiley +1 more source
A JWST Project on 47 Tucanae: NIRSpec Spectroscopy of Multiple Populations among M Dwarfs
The Astrophysical Journal LettersWe 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
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 +2 more sources
The Star Clusters That Make Black Hole Binaries across Cosmic Time [PDF]
Astrophysical Journal, 2018 We explore the properties of dense star clusters that are likely to be nurseries of stellar black holes pairing in close binaries. We combine a cosmological model of globular cluster formation with analytic prescriptions for the dynamical assembly and ...
Nick Choksi +4 more
semanticscholar +1 more source
Making tau amyloid models in vitro: a crucial and underestimated challenge
FEBS Letters, EarlyView.This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley +1 more source
Globular cluster system erosion and nucleus formation in elliptical galaxies [PDF]
, 1998 The radial distribution of globular clusters in galaxies is always less peaked to the centre than the halo stars'. Extending previous work to a sample of HST globular cluster systems in ellipticals, we evaluate the number of clusters lost to the galactic centre as the integrals of the difference between the observed globular cluster system distribution
arxiv +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. +6 more
core +1 more source
VARIABLE STARS IN THE GLOBULAR CLUSTER NGC 2808 [PDF]
The Astronomical Journal, 2013 The first calibrated broadband BVI time-series photometry is presented for the variable stars in NGC 2808, with observations spanning a range of twenty-eight years. We have also redetermined the variability types and periods for the variable stars identified previously by Corwin et al, revising the number of probable fundamental-mode RR Lyrae variables
Kunder, Andrea +4 more
openaire +8 more sources