Results 21 to 30 of about 36,679 (341)
A Massive Neutron Star in the Globular Cluster M5 [PDF]
The Astrophysical Journal, 2008 10 pages in ApJ emulate format, 2 tables, 6 figures. Added February 2008 data, slightly revised mass limits.
P. C. C. Freire +3 more
openalex +7 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
doaj +1 more source
Missing for 20 yr: MeerKAT Redetects the Elusive Binary Pulsar M30B
The Astrophysical Journal Letters, 2023 PSR J2140−2311B is a 13 ms pulsar discovered in 2001 in a 7.8 hr Green Bank Telescope observation of the core-collapsed globular cluster M30 and predicted to be in a highly eccentric binary orbit.
Vishnu Balakrishnan +16 more
doaj +1 more source
Star Formation in Violent and Normal Evolutionary Phases [PDF]
, 2001 Mergers of massive gas-rich galaxies trigger violent starbursts that - over timescales of $> 100$ Myr and regions $> 10$ kpc - form massive and compact star clusters comparable in mass and radii to Galactic globular clusters.
BC Whitmore +9 more
core +2 more sources
New Parameters for Star Cluster Dynamics: The Effect of Primordial Binaries and Dark Remnants
The Astrophysical Journal, 2023 By studying the normalized cumulative radial distribution (nCRD) of the stars in the central region of a Monte Carlo-simulated globular cluster, we recently defined three parameters able to pinpoint the stage of internal dynamical evolution reached by ...
B. Bhat +3 more
doaj +1 more source
Massive Black Holes in Star Clusters. II. Realistic Cluster Models [PDF]
, 2004 We have followed the evolution of multi-mass star clusters containing massive central black holes through collisional N-body simulations done on GRAPE6.
Frank J. +5 more
core +4 more sources
Dynamics and Interactions of Binaries and Neutron Stars in Globular Clusters [PDF]
, 1994 We model the dynamics of test binaries in isotropic, multi-mass models of galactic globular clusters. The evolution of binary orbits through the cluster potentials is modeled, including second order diffusion terms, and probabilities for close encounters
Phinney, E. S., Sigurdsson, Steinn
core +3 more sources
Nature, 1888 PHYSICAL aggregations of stars may be broadly divided into “globular” and “irregular” clusters. Although, as might have been expected, the line of demarcation between the two classes is by no means sharply drawn, each has its own marked peculiarities. We shall limit our attention, in the present article, to the first kind.
openaire +1 more source
Variable stars in the VVV globular clusters [PDF]
EPJ Web of Conferences, 2017 The VVV survey observed some of the most crowded and most obscured regions in the inner MilkyWay during the last years. A significant sample of the less known globular clusters in our galaxy lie there. Combining the high-resolution, wide-field, nearinfrared capabilities of the survey camera, the use of 5 different filters, and multi-epoch observations,
Dante Minniti +8 more
openaire +5 more sources