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This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N. Schneider) to be published by Elsevier as a Reference Module.
Kuruwita, Rajika +2 more
+5 more sources
Star clusters in unperturbed spiral galaxies [PDF]
, 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
Young Stellar Object Candidates in IC 417
The Astronomical Journal, 2023 IC 417 is in the Galactic plane, and likely part of the Aur OB2 association; it is ∼2 kpc away. Stock 8 is one of the densest cluster constituents; off of it to the east, there is a “nebulous stream” (NS) that is dramatic in the infrared (IR).
L. M. Rebull +14 more
doaj +1 more source
Annual Review of Astronomy and Astrophysics, 2007 We review current understanding of star formation, outlining an overall theoretical framework and the observations that motivate it. A conception of star formation has emerged in which turbulence plays a dual role, both creating overdensities to initiate gravitational contraction or collapse, and countering the effects of gravity in these overdense ...
McKee, Christopher F., Ostriker, Eve C.
openaire +3 more sources
HH 80/81: Structure and Kinematics of the Fastest Protostellar Outflow
The Astrophysical Journal, 2023 Hubble Space Telescope (HST) images obtained in 2018 are combined with archival HST data taken in 1995 to detect changes and measure proper motions in the HH 80/81 shock complex, which is powered by the fastest known jet driven by a forming star, the ...
John Bally, Bo Reipurth
doaj +1 more source
Star Formation Efficiencies and Star Cluster Formation [PDF]
, 2005 6 pages, to appear in ``Starbursts from 30 Doradus to Lyman Break Galaxies'', eds. R. de Grijs, R. M. Gonz\'alez Delgado, Astrophysics & Space Science Library Series, Kluwer (in press)
openaire +4 more sources
Machine-learning clustering of close-in exoplanet populations: links to pebble accretion
Astronomy & AstrophysicsContext. Close-in exoplanets span a wide range of orbital architectures and physical properties, consistent with the combined influence of migration processes and formation conditions.
Duann Y. +3 more
doaj +1 more source
Membership Analysis and 3D Kinematics of the Star-forming Complex around Trumpler 37 Using Gaia-DR3
The Astrophysical Journal, 2023 Identifying and characterizing young populations of star-forming regions are crucial to unraveling their properties. In this regard, Gaia-DR3 data and machine-learning tools are very useful for studying large star-forming complexes.
Swagat R. Das +4 more
doaj +1 more source
Interstellar ices as carriers of supernova material to the early solar system
Nature CommunicationsPlanetary materials show systematic variations in their nucleosynthetic isotope compositions that resonate with orbital distance. The origin of this pattern remains debated, limiting how these isotopic signatures can be used to trace the precursors of ...
Martin Bizzarro +12 more
doaj +1 more source
Gas dynamics around dust asymmetries in turbulent disks
Astronomy & AstrophysicsHigh-resolution ALMA observations have revealed asymmetric dust crescents in several protoplanetary disks, suggesting efficient dust trapping mechanisms potentially linked to gas vortices.
Flores-Rivera Lizxandra +6 more
doaj +1 more source