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Related papers: Starbursts are preferentially interacting: confirm…

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(Abridged) We have performed a comprehensive analysis of a sample of 20 starburst galaxies, most of them classified as Wolf-Rayet galaxies. In this paper, the last of the series, we analyze the global properties of our galaxy sample using…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Angel R. Lopez-Sanchez

We study nearby galaxies in close pairs to study the key factors affecting star formation and AGN activity triggered during galaxy interactions. Close pairs are selected from the Sloan Digital Sky Survey assuming a projected separation of…

Astrophysics of Galaxies · Physics 2015-06-17 Caroline Scott , Sugata Kaviraj

We analyse the effects of galaxy interactions on star formation in groups and clusters of galaxies with virial masses in the range $10^{13} - 10 ^{15} M_{\odot}$. We find a trend for galaxy-galaxy interactions to be less efficient in…

Astrophysics · Physics 2009-11-10 M. Sol Alonso , Patricia B. Tissera , Georgina Coldwell , Diego G. Lambas

With the help of a statistical parameter derived from optical spectra, we show that the current star formation rate of a galaxy, falling into a cluster along a supercluster filament, is likely to undergo a sudden enhancement before the…

Galactic bars are the most important driver of secular evolution in galaxies. They can efficiently drive gas into the central kiloparsec of galaxies, thus feed circumnuclear starbursts, and possibly help to fuel AGN. The connection between…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-22 Lei Hao , Shardha Jogee , Fabio D. Barazza , Irina Marinova , Juntai Shen

The dynamical history of most merging galaxies is not well understood. Correlations between galaxy interaction and star formation have been found in previous studies, but require the context of the physical history of merging systems for…

We use numerical simulation to investigate the triggering of starbursts in merging disk galaxies. The properties of the merger-driven starbursts are sensitive to the structure of the progenitor galaxies; specifically, to the amount of…

Astrophysics · Physics 2007-05-23 Chris Mihos , Lars Hernquist

Gravitational interactions and mergers are shaping and reshaping galaxies throughout the observable universe. While observations of interacting galaxies at low redshifts yield detailed information about the processes at work, observations…

Astrophysics · Physics 2009-10-31 Francois Schweizer

Post-starburst (PSB) galaxies are defined as having experienced a recent burst of star formation, followed by a prompt truncation in further activity. Identifying the mechanism(s) causing a galaxy to experience a post-starburst phase…

Mergers and interactions can significantly affect the morphological and dynamical properties of galaxies, however the impact of mergers on turbulence at $z > 1$ has not been observationally constrained. In this work we use the interaction…

Astrophysics of Galaxies · Physics 2026-04-17 I. Kanowski , J. T. Mendel , E. Wisnioski , N. M. Förster Schreiber , A. Marchal , T. Tsukui

We introduce TiNy Titans (TNT), the first systematic study of star formation and the subsequent processing of the interstellar medium in interacting dwarf galaxies. Here we present the first results from a multiwavelength observational…

Astrophysics of Galaxies · Physics 2015-05-20 S. Stierwalt , G. Besla , D. Patton , K. Johnson , N. Kallivayalil , M. Putman , G. Privon , G. Ross

This paper presents an analysis of the correlation between the far-infrared (FIR) and the radio emission of starburst galaxies. Data for interacting galaxies, many of which are undergoing a starburst, and for normal galaxies have been…

Astrophysics · Physics 2007-05-23 U. Lisenfeld , H. J. Voelk , C. Xu

Dusty galaxies with luminosities in excess of 10^11 solar luminosities have been detected out to redshifts of about unity by the Infrared Space Observatory (ISO), and to higher redshifts using millimetre(mm)- and submm-wave cameras on…

Astrophysics · Physics 2007-05-23 Andrew W. Blain

The determination of chemical abundances in star-forming galaxies and the study of their evolution on cosmological timescales are powerful tools for understanding galaxy formation and evolution. This contribution presents the latest results…

Astrophysics · Physics 2007-05-23 T. Contini , M. -A. Treyer , M. Mouhcine , M. Sullivan , R. S. Ellis

Bars are an elongated structure that extends from the centre of galaxies, and about one-third of disk galaxies are known to possess bars. These bars are thought to form either through a physical process inherent in galaxies, or through an…

Astrophysics of Galaxies · Physics 2019-06-26 Yongmin Yoon , Myungshin Im , Gwang-Ho Lee , Seong-Kook Lee , Gu Lim

In this contribution I introduce some of the major issues that motivate the conference, with an emphasis on how starbursts fit into the ``big picture''. I begin by defining starbursts in several different ways, and discuss the merits and…

Astrophysics · Physics 2015-11-11 Timothy M. Heckman

In order to explain the spectroscopic observations of most of the galaxies in intermediate redshift clusters, bursts of star formation superimposed to the traditional scenario of galactic evolution are needed. The analysis of spectral lines…

Astrophysics · Physics 2007-05-23 B. M. Poggianti , G. Barbaro

Post-starbursts are galaxies in transition from the blue cloud to the red sequence. Although they are rare today, integrated over time they may be an important pathway to the red sequence. This work uses SDSS, GALEX, and WISE observations…

Interstellar ultraviolet absorption-lines provide crucial information about the properties of galactic outflows. In this paper, we augment our previous analysis of the systematic properties of starburst-driven galactic outflows by expanding…

Astrophysics of Galaxies · Physics 2016-05-04 Timothy M. Heckman , Sanchayeeta Borthakur

The evolution of galaxy merger rates and its impact on galaxy properties have been studied intensively over the last decade. It becomes clear now that various types of mergers, i.e. gas-rich (wet), gas-poor (dry), or mixed mergers, affect…

Cosmology and Nongalactic Astrophysics · Physics 2009-10-17 Lihwai Lin
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