Results 21 to 30 of about 1,165,937 (254)

Intergalactic stars in the Fornax cluster [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1997
We have identified ten candidate intergalactic planetary nebulae in the Fornax galaxy cluster. These objects were found during observations in 1992 and 1993 in three fields chosen well away from any Fornax galaxy at 15 arcmin, 30 arcmin, and 45 arcmin from the centre of Fornax.
Theuns, T., Warren, S.J.
openaire   +4 more sources

Star clusters as age tracers of the age-metallicity relation of the small magellanic cloud [PDF]

open access: yes, 2009
In my Thesis, I determined ages of Small Magellanic Cloud (SMC) star clusters that have formed during the galaxys entire lifetime.
Glatt, Katharina
core   +1 more source

Lithopanspermia in Star-Forming Clusters [PDF]

open access: yesAstrobiology, 2005
This paper considers the lithopanspermia hypothesis in star forming groups and clusters, where the chances of biological material spreading from one solar system to another is greatly enhanced (relative to the field) due to the close proximity of the systems and lower relative velocities. These effects more than compensate for the reduced time spent in
Adams, Fred C., Spergel, David N.
openaire   +4 more sources

Molecular Gas Properties in Young Stellar Clusters with a Suppressed Star Cluster Wind

open access: yesThe Astrophysical Journal Letters, 2023
In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded in a dense residual gas and stir it by moving
Sergiy Silich   +3 more
doaj   +1 more source

Star clusters in unperturbed spiral galaxies [PDF]

open access: yes, 2008
Stars do not form in isolation, they form in groups known as star clusters. Star clusters are seen in a wide range of galaxies and environments. Their presence reveals the history of the host galaxy and the processes of its star formation.
Mora, Marcelo D.
core   +1 more source

Star cluster dynamics [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
Dynamical evolution plays a key role in shaping the current properties of star clusters and star cluster systems. A detailed understanding of the effects of evolutionary processes is essential to be able to disentangle the properties that result from dynamical evolution from those imprinted at the time of cluster formation.
openaire   +3 more sources

Massive star and star cluster formation [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractI review the status of massive star formation theories: accretion from collapsing, massive, turbulent cores; competitive accretion; and stellar collisions. I conclude the observational and theoretical evidence favors the first of these models.
openaire   +2 more sources

The evolution of star clusters: the resolved-star approach

open access: yesAstrophysics and Space Science, 2009
We present the first results of a new technique to detect, locate, and characterize young dissolving star clusters. Using HST/ACS archival images of the nearby galaxy IC2574, we performed stellar PSF photometry and selected the most massive stars as our first test sample.
Pellerin, A   +3 more
openaire   +4 more sources

First Evidence of Multi-iron Subpopulations in the Bulge Fossil Fragment Candidate Liller 1

open access: yesThe Astrophysical Journal, 2023
In the context of a project aimed at characterizing the properties of the so-called Bulge Fossil Fragments (the fossil remnants of the bulge formation epoch), here we present the first determination of the metallicity distribution of Liller 1.
Chiara Crociati   +11 more
doaj   +1 more source

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