Results 41 to 50 of about 87,149 (376)
Future of the General Catalogue of Variable Stars from the Experience of Recent Name-lists
Open Astronomy, 2021 We briefly outline the history of the General Catalogue of Variable Stars (GCVS) and the New Catalogue of Suspected Variable Stars (NSV catalogue). Recently, we have completed a revision of the NSV catalogue.
Samus Nikolay N. +5 more
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Rotation in Globular Cluster stars [PDF]
Astronomy & Astrophysics, 2003 We present a derivation of upper limits to the rotation of Main Sequence stars in three globular clusters using spectra obtained during time allocated to the ESO Large Programs 165-L0263 and 167.D-0173, with UVES at VLT2 (Kueyen). The stars analyzed in this work do not show any evidence of high values of rotational velocities as far as the outer layers
S. Lucatello, R. G. Gratton
openaire +1 more source
The Astrophysical Journal, 2023 We characterize the optical counterparts to the compact X-ray source population within the nearby spiral galaxy M81 using multiband Hubble Space Telescope (HST) imaging data.
Qiana Hunt +4 more
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Searching for New Globular Clusters in M31 with Gaia EDR3
The Astrophysical Journal, 2023 We have found 50 new globular cluster (GC) candidates around M31 with Gaia Early Data Release 3 (EDR3), with the help of Pan-STARRS1 DR1 magnitudes and Pan-Andromeda Archaeological Survey (PAndAS) images.
Yilun Wang +7 more
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Neutron Stars in Globular Clusters [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractDynamical interactions that occur between objects in dense stellar systems are particularly important for the question of formation of X-ray binaries. We present results of numerical simulations of 70 globular clusters with different dynamical properties and a total stellar mass of 2×107M⊙.
Ivanova, Natalia +2 more
openaire +2 more sources
The Global Mass Functions of 35 Galactic globular clusters: II. Clues on the Initial Mass Function and Black Hole Retention Fraction [PDF]
, 2017 In this paper we compare the mass function slopes of Galactic globular clusters recently determined by Sollima & Baumgardt (2017) with a set of dedicated N-body simulations of star clusters containing between 65,000 to 200,000 stars.
Baumgardt, Holger, Sollima, Antonio
core +2 more sources
Origin of the Globular Star Clusters
The Astrophysical Journal, 1968 P. Peebles, R. Dicke
semanticscholar +2 more sources
The Origin of Gamma-Rays from Globular Clusters [PDF]
, 2010 Fermi has detected gamma-ray emission from eight globular clusters. We suggest that the gamma-ray emission from globular clusters may result from the inverse Compton scattering between relativistic electrons/positrons in the pulsar wind of MSPs in the ...
Cheng, K. S. +4 more
core +2 more sources
Variability in NGC 3201 Giant Stars
The Astronomical Journal, 2023 We present the analysis of 510 light curves in V and I bands of 255 giant stars in the globular cluster NGC 3201. Our aim is to expand the sample of new types of variables reported in a previous study. These variables show a short period ( P _V < 0.6 day)
C. C. Cortés +4 more
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STAR CLUSTERS IN M31. VII. GLOBAL KINEMATICS AND METALLICITY SUBPOPULATIONS OF THE GLOBULAR CLUSTERS [PDF]
, 2016 We carry out a joint spatial–kinematical–metallicity analysis of globular clusters (GCs) around the Andromeda Galaxy (M31), using a homogeneous, high-quality spectroscopic data set.
N. Caldwell, A. Romanowsky
semanticscholar +1 more source