Results 71 to 80 of about 2,066,093 (377)
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
Iron and neutron-capture element abundance variations in the globular cluster M2 (NGC 7089) [PDF]
, 2014 We present CN and CH indices and CaII triplet metallicities for 34 giant stars and chemical abundances for 33 elements in 14 giants in the globular cluster M2.
D. Yong +10 more
semanticscholar +1 more source
The self-enrichment of galactic halo globular clusters : a clue to their formation ? [PDF]
, 1999 We present a model of globular cluster self-enrichment. In the protogalaxy, cold and dense clouds embedded in the hot protogalactic medium are assumed to be the progenitors of galactic halo globular clusters.
Jehin, E. +5 more
core +1 more source
HST Imaging of Globular Clusters in the Edge--on Spiral Galaxies NGC 4565 and NGC 5907
, 1999 We present a study of the globular cluster systems of two edge-on spiral galaxies, NGC4565 and NGC5907, from WFPC2 images in the F450W and F814W filters.
Botinelli L. +10 more
core +1 more source
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
Circulating histones as clinical biomarkers in critically ill conditions
FEBS Letters, EarlyView.Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez +17 more
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
doaj +1 more source
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
doaj
The outer halo globular cluster system of M31 – II. Kinematics [PDF]
, 2014 We present a detailed kinematic analysis of the outer halo globular cluster system of the Andromeda galaxy (M31). Our basis for this is a set of new spectroscopic observations for 78 clusters lying at projected distances between Rproj 20-140 kpc from ...
J. Veljanoski +15 more
semanticscholar +1 more source
Mergers of Globular Clusters [PDF]
The Astrophysical Journal, 1996 Globular clusters with composite color-magnitude diagrams, such as NGC 1851, NGC 2808 and Fornax No. 3, might have formed by mergers. It is suggested that each of these objects had two parent clusters, one with a red horizontal branch and another with a blue horizontal branch.
openaire +3 more sources