Results 41 to 50 of about 102,398 (346)
Globular cluster population of the HST frontier fields galaxy J07173724+3744224 [PDF]
, 2018 We present the first measurement of the globular cluster population surrounding the elliptical galaxy J07173724+3744224 (z=0.1546). This galaxy is located in the foreground in the field-of-view of the Hubble Space Telescope (HST) Frontier Fields ...
Barkhouse, Wayne A. +6 more
core +3 more sources
Proceedings of the National Academy of Sciences, 1998 We review two new methods to determine the age of globular clusters (GCs). These two methods are more accurate than the classical isochrone fitting technique. The first method is based on the morphology of the horizontal branch and is independent of the distance modulus of the globular cluster.
openaire +3 more sources
CCD Photometry of the Globular Cluster NGC 4372 [PDF]
Journal of Astronomy and Space Sciences, 1994 We present a deep (B, V) color-magnitude diagram (CMD) of the Galactic globular cluster NGC 4372. According to the recent inside-out picture of Galaxy formation, this cluster is predicted to be one of the oldest globular clusters in the Galaxy.
Hong-Suh Yim +2 more
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A Type Ia Supernova near a Globular Cluster in the Early-type Galaxy NGC 5353
The Astrophysical Journal LettersNo progenitor of a Type Ia supernova (SN Ia) is known, but in old-population early-type galaxies, one may find SNe Ia associated with globular clusters, yielding a population age and metallicity.
Joel N. Bregman +3 more
doaj +1 more source
How Clumpy Star Formation Affects Globular Cluster Systems
Galaxies, 2017 There is now clear evidence the metallicities of globular clusters are not simple tracers of the elemental abundances in their protocluster clouds; some of the heavy elements were formed subsequently within the cluster itself. It is also manifestly clear
Jeremy Bailin
doaj +1 more source
Tidal stripping of globular clusters in a simulated galaxy cluster [PDF]
, 2015 Using a cosmological N-body numerical simulation of the formation of a galaxy cluster- sized halo, we analyze the temporal evolution of its globular cluster population.
Abadi, Mario +3 more
core +2 more sources
Resonant Relaxation in Globular Clusters [PDF]
The Astrophysical Journal, 2019 Abstract Resonant relaxation has been discussed as an efficient process that changes the angular momenta of stars orbiting around a central supermassive black hole due to the fluctuating gravitational field of the stellar cluster. Other spherical stellar systems, such as globular clusters, exhibit a restricted form of this effect where ...
Yohai Meiron, Bence Kocsis
openaire +4 more sources
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
The Globular Cluster System of the Virgo Cluster Ultradiffuse Galaxy VCC 615
The Astrophysical JournalWe use Hubble Space Telescope imaging to study the globular cluster system of the Virgo Cluster ultradiffuse galaxy (UDG) VCC 615. We select globular cluster candidates through a combination of size and color, while simultaneously rejecting contamination
J. Christopher Mihos +7 more
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Mass to Luminosity Ratios of Some Clusters in the Large Magellanic Cloud [PDF]
Journal of Astronomy and Space Sciences, 1990 Luminosity profiles and dynamical parameters of 12 globular clusters in the Large Magellanic Cloud (SB(s)m) are obtained from the concentric aperture photoelectric photometry of 3 different aged clusters and the collected photometric data of 9 clusters ...
Young-Jong Sohn, Mun-Suk Chun
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