Results 91 to 100 of about 85,801 (378)
Rotation and Hα Emission in a Young SMC Cluster: A Spectroscopic View of NGC 330
The Astrophysical JournalWe present an analysis of high-resolution optical spectra recorded for 30 stars of the split extended main-sequence turnoff of the young (∼40 Myr) Small Magellanic Cloud globular cluster NGC 330.
Paul I. Cristofari +6 more
doaj +1 more source
The ESO-VLT MIKiS Survey Reloaded: Exploring the Internal Kinematics of NGC 6440
The Astrophysical Journal, 2023 In the context of the ESO-VLT Multi-Instrument Kinematic Survey of Galactic globular clusters, here we present the line-of-sight velocity dispersion profile of NGC 6440, a massive globular cluster located in the Galactic bulge.
Silvia Leanza +9 more
doaj +1 more source
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
On the efficiency of field star capture by star clusters
, 2007 An exciting recent finding regarding scaling relations among globular clusters is the so-called 'blue tilt': clusters of the blue sub-population follow a trend of redder colour with increasing luminosity.
Baranov +31 more
core +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 +2 more sources
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
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
The Astrophysical Journalω Centauri, the most massive globular cluster in the Milky Way, has long been suspected to be the stripped nucleus of a dwarf galaxy that fell into the Galaxy a long time ago.
M. S. Nitschai +17 more
doaj +1 more source
Kinematical evolution of multiple stellar populations in star clusters [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present the results of a suite of N-body simulations aimed at understanding the fundamental aspects of the long-term evolution of the internal kinematics of multiple stellar populations in globular clusters.
M. Tiongco, E. Vesperini, A. Varri
semanticscholar +1 more source