[PDF] Top 20 Molecular Clouds and Star Formation

... Membership in the Cepheus OB3 association and in its individual subgroups, the ages and kinematics of the stars, and the structure and energetics of the related [r] ... See full document

... Molecular clouds are known to be turbulent, with supersonic line widths ...the star formation process has gained prevalence in recent ...dominate molecular cloud evolution, then ... See full document

... of star formation is of fundamental significance as it acts as a link between galaxy evolution, planet formation, and astrobiology (Chyba & Hand, 2005; Gillon, 2014; Lingam & Loeb, 2018; ... See full document

... giant molecular clouds ( GMCs ) ...dark clouds ( IRDCs ) in the Galactic plane, are thought to be the precursors to massive stars and star clusters, so their formation may be the ... See full document

... of star formation in a clustered ...of star formation is delayed by ...0/I star. Thereby it might be classified as an Class II/III star, leading to an higher age-spread between ... See full document

... of molecular tracers such as CO produce a core mass function resembling the IMF ( ...shown, star formation generally takes place above a density of n > 10 4 cm −3 ...lar clouds are the most ... See full document

... and star formation efficiencies (SFE) are key parameters to characterize star-forming region in terms of how much gas is turned into stars (Kennicutt & Evans ...into star, while SFE tells ... See full document

... lower star formation rate than ...giant molecular clouds are not active in forming ...Some molecular clouds are characterized by rates of star formation that differ ... See full document

... of star formation by supernovae or HII regions ...This star formation is often attributed to the compression of an existing molecular cloud by shock waves from ioniza- tion fronts from ... See full document

... formed star(s) ionizes the star-facing surface layer of a molecu- lar cloud, the ionization heating induces a shock which propagates into the cloud, compressing material to form highly condensed ...the ... See full document

... Star formation is a complex process governed by several inter- twined physical processes (Evans et ...giant molecular clouds with only around ten per cent of stars forming in isolation (Lada ... See full document

... in star formation in GMCs has been extensively studied by a number of ...in star forming regions (Vazquez-Semadeni et ah, 1997; Ostriker et ah, 1999; Ballesteros-Paredes et ah, 1999a; Padoan & ... See full document

... in star forming regions, it is very hard to obtain reliable mea- surements on the global scale of a molecular cloud, let alone the small local scale of a ...inside molecular clouds is not ... See full document

... picture, star formation (especially high-mass) is so disruptive to its surroundings that the core envelope is dispersed (but not destroyed) in only a fraction of the dynamical time appropriate for that ... See full document

... companion star: In a supergiant system the massive star is an OB ...emission-line star within the position error circle, a total of 24 sources with hard X-ray spectrum were suggested as Be/X-ray ... See full document

... Brown dwarfs seemed the perfect example for a static atmosphere, until it was understood that cloud formation plays a major role for their atmospheres (Tsuji et al. 19). Then, older brown dwarfs were though to be ... See full document

... quenching star formation in the green valley by analyzing ALMA 12 CO ( 1 – 0 ) observations of three galaxies with resolved optical spectroscopy from the MaNGA ...the star formation rate and ... See full document

... wind formation in clumpy, nonisotropic discs by continuous energy injection proportional to the gas ...dense clouds within the disc break up by Kelvin-Helmholtz instability and form ...adiabatic ... See full document

... Taurus L1495 filamentary complex [7]. Because this core is very dense, with a high deu- terium fraction it indicates that it should be at the very end of its starless phase. Hence, it may be the precursor of a brown ... See full document

... denser clouds (M = 100 M and R = ...in star formation cal- culations, but focused on smaller cores (M = 3 M ; R = 3000 au), examining the effect on disc and binary fractions rather than the ... See full document