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Massive star clusters are observed in a broad range of galaxy luminosity and types, and are assumed to form in dense gas-rich environments. Using a parsec-resolution hydrodynamical simulation of an isolated gas-rich low mass galaxy, we…

Astrophysics of Galaxies · Physics 2018-04-04 Nicolas Guillard , Eric Emsellem , Florent Renaud

Molecular clouds are the principle stellar nurseries of our universe, keeping them in the focus of both observational and theoretical studies. From observations, some of the key properties of molecular clouds are well known but many…

Astrophysics of Galaxies · Physics 2017-09-20 M. Völschow , R. Banerjee , B. Körtgen

We use the self-consistent model technique developed by Mart\'in-Manj\'on et al. (2008) that combines the chemical evolution with stellar population synthesis and photo-ionization codes, to study the star formation scenarios capable of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 M. L. Martín-Manjón , M. Mollá , A. I. Díaz , R. Terlevich

To address the problem concerning the early formation of stars in massive galaxies, we present the results of a semi-analytic model of galaxy formation which includes a physical description of starbursts triggered by galaxy interactions.…

Astrophysics · Physics 2009-11-10 N. Menci , A. Cavaliere , A. Fontana , E. Giallongo , F. Poli , V. Vittorini

The bright [C II] 158 micron line is widely used to trace star-forming gas and feedback-driven outflows in high-redshift galaxies. Using the SPICE simulations, we investigate how bursty versus smooth stellar feedback shapes galaxy…

Astrophysics of Galaxies · Physics 2026-05-01 Aniket Bhagwat , Tiago Costa , Benedetta Ciardi , Fabrizio Arrigoni Battaia

The Feedback In Realistic Environments (FIRE) project explores feedback in cosmological galaxy formation simulations. Previous FIRE simulations used an identical source code (FIRE-1) for consistency. Motivated by the development of more…

(Abridged) Bright-rimmed clouds (BRCs) are isolated molecular clouds located on the edges of evolved HII regions where star formation is thought may have been triggered. In this paper we investigate the current level of star formation…

Astrophysics of Galaxies · Physics 2009-11-13 J. S. Urquhart , L. K. Morgan , M. A. Thompson

I present recent observations and analyses of star cluster formation in a wide variety of environments -- from young star clusters and super star clusters in normal actively star-forming spirals and irregulars to starbursting dwarfs and…

Astrophysics · Physics 2007-05-23 Uta Fritze - v. Alvensleben

Star formation remains an unsolved problem in astrophysics. Numerical studies of large-scale structure simulations cannot resolve the whole process and their approach usually assumes that only gas denser than a typical threshold can host…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Umberto Maio , Benedetta Ciardi , Naoki Yoshida , Klaus Dolag , Luca Tornatore

We take the end result of smoothed particle hydrodynamics (SPH) simulations of star formation which include feedback from photoionisation and stellar winds and evolve them for a further 10Myr using $N$-body simulations. We compare the…

Astrophysics of Galaxies · Physics 2015-06-23 Richard J. Parker , James E. Dale , Barbara Ercolano

Massive stars have a profound influence on the Universe, but their formation remains poorly understood. We review the current status of observational and theoretical research in this field, describing the various stages of an evolutionary…

Astrophysics · Physics 2007-05-23 H. Beuther , E. B. Churchwell , C. F. McKee , J. C. Tan

Increasingly sophisticated observational tools and techniques are now being developed for probing the nature of interstellar turbulence. At the same time, theoretical advances in understanding the nature of turbulence and its effects on the…

Astrophysics · Physics 2009-11-10 Mark Heyer , Ellen Zweibel

Physical collisions between stars occur frequently in dense star clusters, either via close encounters between two single stars, or during strong dynamical interactions involving binary stars. Here we study stellar collisions that occur…

Astrophysics · Physics 2009-11-10 J. M. Fregeau , P. Cheung , S. F. Portegies Zwart , F. A. Rasio

We report on a study of tidally triggered star formation in galaxies, based on spectroscopic/photometric observations in the optical/near-IR of a magnitude limited sample of 59 systems of interacting and merging galaxies and a comparison…

Astrophysics · Physics 2007-05-23 Nils Bergvall , Eija Laurikainen , Susanne Aalto

Galaxy interactions/mergers, gravitational instabilities and density waves, such as bars, are frequently invoked to trigger starbursts. These mechanisms have been explored through numerical simulations, with the help of various star…

Astrophysics · Physics 2009-11-10 F. Combes

Recent studies show the importance of the star formation feedback in changing the energetic and structure of galaxies. Dissecting the physics of the feedback is hence crucial to understand the evolution of galaxies. Full polarization radio…

Astrophysics of Galaxies · Physics 2016-11-08 Fatemeh S. Tabatabaei

Recent results from the James Webb Space Telescope show that nearby spiral galaxies are dominated by the presence of H I and H II bubbles that strongly shape their surrounding medium. These bubbles result from the feedback of high-mass…

Cosmological simulations of galaxies have typically produced too many stars at early times. We study the global and morphological effects of radiation pressure (RP) in eight pairs of high-resolution cosmological galaxy formation…

The deepest multi-wavelength surveys now provide measurements of star formation in galaxies out to z>1, and allow to reconstruct its history for large parts of the galaxy population. I review recent studies, which have consistently revealed…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-15 Kai G. Noeske

Stellar feedback in the form of radiation pressure and magnetically-driven collimated outflows may limit the maximum mass that a star can achieve and affect the star-formation efficiency of massive pre-stellar cores. Here we present a…

Solar and Stellar Astrophysics · Physics 2020-07-29 Anna L. Rosen , Mark R. Krumholz
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