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Related papers: Does supernova feedback regulate the star formatio…

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We investigated the impact of supernova feedback in gas-rich dwarf galaxies experiencing a low-to-moderate star formation rate, typical of relatively quiescent phases between starbursts. We calculated the long term evolution of the ISM and…

Astrophysics of Galaxies · Physics 2015-06-23 C. Melioli , F. Brighenti , A. D'Ercole

We perform two dimensional hydrodynamic numerical simulations to study the positive active galactic nucleus feedback which triggers, rather than suppresses, star formation. Recently, it was shown by Nayakshin et al. and Ishibashi et al.…

Astrophysics of Galaxies · Physics 2015-06-15 Chao Liu , Zhao-ming Gan , Fu-guo Xie

We consider X-ray binaries (XBs) as potential sources of stellar feedback. XBs observationally appear able to deposit a high fraction of their power output into their local interstellar medium, which may make them a non-negligible source of…

Astrophysics of Galaxies · Physics 2015-08-25 Stephen Justham , Kevin Schawinski

We present a set of hydrodynamical/Nbody controlled simulations of isolated gas rich galaxies that self-consistently include SN feedback and a detailed chemical evolution model, both tested in cosmological simulations. The initial…

Astrophysics of Galaxies · Physics 2015-06-16 J. Perez , O. Valenzuela , P. Tissera , L. Michel-Dansac

We present the star formation rate (SFR) measurements based on the spectral energy distribution (SED) analysis with new sub-mm fluxes combined with archival multi-wavelength data for a sample of 52 AGN host galaxies at z $<0.2$. We carried…

We study galaxy super-winds driven in major mergers, using pc-resolution simulations with detailed models for stellar feedback that can self-consistently follow the formation/destruction of GMCs and generation of winds. The models include…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-13 Philip F. Hopkins , Dusan Keres , Norman Murray , Lars Hernquist , Desika Narayanan , Christopher C. Hayward

The evolution of the galaxy stellar mass--star formation rate relationship (M*-SFR) provides key constraints on the stellar mass assembly histories of galaxies. For star-forming galaxies, M*-SFR is observed to be fairly tight with a slope…

Astrophysics · Physics 2010-11-23 Romeel Davé

We investigate the spatially-resolved star formation relation using a galactic disk formed in a comprehensive high-resolution (3.8 pc) simulation. Our new implementation of stellar feedback includes ionizing radiation as well as supernova…

Astrophysics of Galaxies · Physics 2018-03-12 Ji-hoon Kim , Mark R. Krumholz , John H. Wise , Matthew J. Turk , Nathan J. Goldbaum , Tom Abel

We investigate the star formation-feedback cycle in cosmological galaxy formation simulations, focusing on progenitors of Milky Way (MW)-sized galaxies. We find that in order to reproduce key properties of the MW progenitors, such as…

Astrophysics of Galaxies · Physics 2015-06-19 Oscar Agertz , Andrey V. Kravtsov

This paper presents the spatially resolved star formation history (SFH) of nearby galaxies with the aim of furthering our understanding of the different processes involved in the formation and evolution of galaxies. To this end, we apply…

To understand star formation in galaxies, we investigate the star formation rate (SFR) surface density ($\Sigma_{\rm SFR}$) profiles for galaxies, based on a well-defined sample of 976 star-forming MaNGA galaxies. We find that the typical…

Astrophysics of Galaxies · Physics 2019-06-12 Enci Wang , Simon J. Lilly , Gabriele Pezzulli , Jorryt Matthee

Galaxy formation models are now able to reproduce observed relations such as the relation between galaxies' star formation rates (SFRs) and stellar masses ($M_*$) and the stellar mass--halo mass relation. We demonstrate that comparisons of…

Observations of AGN have suggested a possible delay between the peak of star formation (on some scale) and AGN activity. Inefficient fueling (and/or feedback) from fast stellar winds has been invoked to explain this, but we argue this is…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-22 Philip F. Hopkins

Nearby dwarf galaxies exhibit tight correlations between their global stellar and dynamical properties, such as circular velocity, mass-to-light ratio, stellar mass, surface brightness, and metallicity. Such correlations have often been…

Astrophysics · Physics 2010-11-11 Konstantinos Tassis , Andrey V. Kravtsov , Nickolay Y. Gnedin

The observed stellar mass function (SMF) is very different to the halo mass function predicted by Lambda-CDM, and it is widely accepted that this is due to energy feedback from supernovae and black holes. However, the strength and form of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 R. G. Bower , A. J. Benson , R. A. Crain

We present results from a study to determine how star formation contributes to galaxy growth since redshift z=1.5. Using galaxies from the MUnich Near-Infrared Cluster Survey (MUNICS) and the FORS Deep Field (FDF), we investigate the…

Astrophysics · Physics 2007-05-23 Amanda E. Bauer , Niv Drory , Gary J. Hill

After considering the effects of negative feedback on the process of star formation, we explore the relationship between star formation process and the associated feedback, by investigating how the mechanical feedback from supernovae(SNe)…

Astrophysics · Physics 2009-11-13 Lei Wang , Jirong Mao , Shouping Xiang , Ye-Fei Yuan

We present an analytic model for how momentum deposition from stellar feedback simultaneously regulates star formation and drives outflows in a turbulent interstellar medium (ISM). Because the ISM is turbulent, a given patch of ISM exhibits…

Astrophysics of Galaxies · Physics 2017-02-08 Christopher C. Hayward , Philip F. Hopkins

The first stars form in dark matter halos of masses ~10^6 M_sun as suggested by an increasing number of numerical simulations. Radiation feedback from these stars expels most of the gas from their shallow potential well of their surrounding…

Astrophysics · Physics 2009-11-13 John H. Wise , Tom Abel

We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially-resolved study of the stellar populations in a set of 366 nearby galaxies from the CALIFA survey. The…

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