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We use long-slit spectroscopy from Moran et al. to study the radial dependence of the recent star formation histories of nearby galaxies with stellar masses greater than 10^10M_sun. We fit stellar population models to the combination of…

Cosmology and Nongalactic Astrophysics · Physics 2013-06-13 Mei-Ling Huang , Guinevere Kauffmann , Yan-Mei Chen , Sean M. Moran , Timothy M. Heckman , Romeel Davé , Jonas Johansson

Stars do not simply pop up on the main sequence. Before the stars arrive on the zero-age main sequence, they form in the collapses of molecular clouds, gain matter through accretion processes, and compress their cores until hydrogen can…

Solar and Stellar Astrophysics · Physics 2022-06-22 Konstanze Zwintz , Thomas Steindl

Moderately luminous starbursts in the nearby universe often occur in disk galaxies that are at most subject to mild external perturbations. An investigation of this type of galaxy leads to a better understanding of starburst triggering…

We compute chemical evolution models to constrain the mode and the history of star formation in starburst galaxies as a whole, i.e. over a large range of mass and metallicity. To this end, we investigate the origin of the dispersion…

Astrophysics · Physics 2009-11-07 M. Mouhcine , T. Contini

An overview of our current understanding of the formation and evolution of star clusters is given, with main emphasis on high-mass clusters. Clusters form deeply embedded within dense clouds of molecular gas. Left-over gas is cleared within…

Astrophysics of Galaxies · Physics 2015-05-14 Soeren S. Larsen

The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions of massive galaxies in the redshift range 0<z<2 to explore the…

We investigate the spatially-resolved star formation main sequence in star-forming galaxies (SFGs) using Integral Field Spectroscopic (IFS) observations from the Mapping Nearby Galaxies at the Apache Point Observatory (MaNGA) survey. We…

Astrophysics of Galaxies · Physics 2018-04-11 Qing Liu , Enci Wang , Zesen Lin , Yulong Gao , Haiyang Liu , Berzaf Berhane Teklu , Xu Kong

I briefly review some measures of star formation rates in galaxies and discuss their respective uncertainties before outlining the range of star formation rates encountered in starbursts from isolated dwarf through massive gas-rich…

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

This contribution summarizes briefly the main topics covered at this wide-ranging conference. Much of the evidence presented indicates that star formation occurs in discrete episodes or bursts that produce stellar groupings of all sizes,…

Astrophysics · Physics 2007-05-23 Richard B. Larson

I assess the similarities and differences between the star-formation modes in quiescent spiral galaxies versus those in violent starburst regions. As opposed to the quiescent star-formation mode in spiral galaxies, current empirical…

Astrophysics · Physics 2007-05-23 Richard de Grijs

Star clusters stand at the intersection of much of modern astrophysics: the interstellar medium, gravitational dynamics, stellar evolution, and cosmology. Here we review observations and theoretical models for the formation, evolution, and…

Astrophysics of Galaxies · Physics 2019-09-11 Mark R. Krumholz , Christopher F. McKee , Joss Bland-Hawthorn

Star-formation and the Starburst phenomenon are presented with respect to a number of nearby star-forming galaxies where our understanding of the process can be calibrated. Methods of estimating star-formation rates are discussed together…

Astrophysics · Physics 2007-05-23 T. W. B. Muxlow , R. J. Beswick , A. M. S. Richards , H. Thrall

High-mass stars are major players in the chemical and dynamical evolution of galaxies, and young massive clusters are the natural laboratories to study their evolution and their impact on star formation processes. Only in recent years have…

Astrophysics of Galaxies · Physics 2018-03-21 Ignacio Negueruela

We examine the growth of the stellar content of galaxies from z=3-0 in cosmological hydrodynamic simulations incorporating parameterised galactic outflows. Without outflows, galaxies overproduce stellar masses (M*) and star formation rates…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Romeel Davé , Benjamin D. Oppenheimer , Kristian Finlator

Studying star formation in spiral arms tells us not only about the evolution of star formation, and molecular clouds, but can also tell us about the nature of spiral structure in galaxies. I will address both these topics using the results…

Astrophysics of Galaxies · Physics 2015-06-16 Clare Dobbs

A large deep and nearly complete B<24.5 redshift sample is used to measure the change in distribution function of the stellar mass production rate in individual galaxies with redshift. The evolution of the star formation rate distribution…

Astrophysics · Physics 2009-10-30 Lennox L. Cowie , Esther M. Hu , Antoinette Songaila , Eiichi Egami

In this paper, we use different luminosity ratios to trace the histories of star formation of two different kinds of starburst galaxies: HII galaxies and starburst nucleus galaxies (SBNGs). The mean star formation rates (SFRs) for these…

Astrophysics · Physics 2007-05-23 Roger Coziol

The scatter of the spatially resolved star formation main sequence (SFMS) is investigated in order to reveal signatures about the processes of galaxy formation and evolution. We have assembled a sample of 355 nearby galaxies with spatially…

The apparent correlation between the specific star formation rate (sSFR) and total stellar mass (M_star) of galaxies is a fundamental relationship indicating how they formed their stellar populations. To attempt to understand this relation,…

Astrophysics of Galaxies · Physics 2015-05-13 M. D. Lehnert , W. van Driel , L. Le Tiran , P. Di Matteo , M. Haywood