Results 41 to 50 of about 2,357,113 (365)
We present a comprehensive analysis of the Galactic mid-infrared bubble [HKS2019] E70 (E70) by adopting a multiwavelength approach to understand the physical environment and star formation scenario around it.
Aayushi Verma+10 more
doaj +1 more source
This review concentrates almost entirely on globular star clusters. It emphasises the increasing realisation that few of the traditional problems of star cluster astronomy can be studied in isolation: the influence of the Galaxy affects dynamical evolution deep in the core, and the spectrum of stellar masses; in turn the evolution of the core ...
openaire +2 more sources
Probing the Faintest Stars in a Globular Star Cluster [PDF]
NGC 6397 is the second closest globular star cluster to the Sun. Using 5 days of time on the Hubble Space Telescope, we have constructed an ultradeep color-magnitude diagram for this cluster. We see a clear truncation in each of its two major stellar sequences.
Richer, Harvey B.+12 more
openaire +5 more sources
HOW FAR CAN GET FRB PROGENITOR NEUTRON STARS FROM THEIR BIRTHPLACE?
The recent studies show evidence of magnetars – young neutron stars being good candidates of fast radio birth sources. Neutron stars can form as remnants of type II supernovae explosions of young stars.
A. Otebay, M. Kalambay, B. Shukirgaliyev
doaj +1 more source
AbstractThe centers of most galaxies in the local Universe are occupied by compact, barely resolved sources. Based on their structural properties, position in the Fundamental Plane, and integrated spectra, these sources clearly have a stellar origin. They are therefore called ‘nuclear star clusters’ (NCs) or ‘stellar nuclei’.
openaire +3 more sources
Radiation pressure in super star cluster formation [PDF]
The physics of star formation at its extreme, in the nuclei of the largest and densest star clusters in the universe - potential massive black hole nurseries - has for decades eluded scrutiny.
B. T. Tsang, M. Milosavljevic
semanticscholar +1 more source
DISCOVERY OF A FAINT OUTER HALO MILKY WAY STAR CLUSTER IN THE SOUTHERN SKY [PDF]
We report the discovery of a new, low-luminosity star cluster in the outer halo of the Milky Way. High-quality gr photometry is presented, from which a color–magnitude diagram is constructed, and estimates of age, [Fe/H], [α/Fe], and distance are derived.
Dongwon Kim+4 more
semanticscholar +1 more source
Planetary systems in star clusters [PDF]
AbstractIn the solar neighborhood, where the typical relaxation timescale is larger than the cosmic age, at least 10% to 15% of Sun-like stars have planetary systems with Jupiter-mass planets. In contrast, dense star clusters, characterized by frequent close encounters, have been found to host very few planets.
Kouwenhoven, M.B.N.+3 more
openaire +6 more sources
Star cluster formation in Orion A [PDF]
Abstract We introduce new analysis methods for studying the star cluster formation processes in Orion A, especially examining the scenario of a cloud–cloud collision. We utilize the CARMA–NRO Orion survey 13CO (1–0) data to compare molecular gas to the properties of young stellar objects from the SDSS III IN-SYNC survey. We show that the
Benjamin Wu+13 more
openaire +4 more sources