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We study the evolution of multiple supernova (SN) explosions inside a pre-exiting cavity blown by winds from massive progenitor stars. Hydrodynamic simulations in one-dimensional spherical geometry, including radiative cooling and thermal…

Astrophysics · Physics 2008-11-26 Hyunjin Cho , Hyesung Kang

The regulation of the baryonic content in dwarf galaxies is a long-standing problem. Supernovae (SNe) are supposed to play a key role in forming large-scale galactic winds by removing important amounts of gas from galaxies. SNe are…

Astrophysics of Galaxies · Physics 2020-07-01 Gohar Dashyan , Yohan Dubois

Supernova (SN) blast waves inject energy and momentum into the interstellar medium (ISM), control its turbulent multiphase structure and the launching of galactic outflows. Accurate modelling of the blast wave evolution is therefore…

Astrophysics of Galaxies · Physics 2016-05-25 Sebastian Haid , Stefanie Walch , Thorsten Naab , Daniel Seifried , Jonathan Mackey , Andrea Gatto

Star formation is inefficient. Only a few percent of the available gas in molecular clouds forms stars, leading to the observed low star formation rate (SFR). The same holds when averaged over many molecular clouds, such that the SFR of…

Solar and Stellar Astrophysics · Physics 2015-05-22 Christoph Federrath

We have computed new estimates of the local rates of supernovae (SNe) adding the updated log of Evans' visual search to our SN search database. In this way, we have accumulated the largest SN statistics ever assembled for this purpose. The…

Astrophysics · Physics 2008-11-26 E. Cappellaro , R. Evans , M. Turatto

We present results from an extensive set of one- and two-dimensional radiation-hydrodynamic simulations of the supernova core collapse, bounce, and postbounce phases, and focus on the protoneutron star (PNS) spin periods and rotational…

Astrophysics · Physics 2011-03-28 Christian D. Ott , Adam Burrows , Todd A. Thompson , Eli Livne , Rolf Walder

Star formation is inefficient. Only a few percent of the available gas in molecular clouds forms stars, leading to the observed low star formation rate (SFR). The same holds when averaged over many molecular clouds, such that the SFR of…

Astrophysics of Galaxies · Physics 2016-06-13 Christoph Federrath

We study the evolution of supernova (SN) remnants of the first stars, taking proper account of the radiative feedback of the progenitor stars on the surroundings. We carry out a series of one-dimensional hydrodynamic simulations with…

Astrophysics · Physics 2009-11-11 Tetsu Kitayama , Naoki Yoshida

We use the redshift distribution of type-Ia supernovae (SNe) discovered by the Supernova Cosmology Project to constrain the star formation history (SFH) of the Universe and SN Ia progenitor models. Given some of the recent determinations of…

Astrophysics · Physics 2009-11-10 Avishay Gal-Yam , Dan Maoz

We present the results of cosmological hydrodynamic simulations with zoom-in initial conditions, and investigate the formation of the first galaxies and their evolution towards observable galaxies at $z \sim 6$. We focus on three different…

Astrophysics of Galaxies · Physics 2017-09-06 Hidenobu Yajima , Kentaro Nagamine , Qirong Zhu , Sadegh Khochfar , Claudio Dalla Vecchia

Supernovae (SNe) are considered to have a major role in dust enrichment of high redshift galaxies and, due to the short lifetimes of interstellar grains, in dust replenishment of local galaxies. Here we explore how SN dust yields depend on…

Solar and Stellar Astrophysics · Physics 2018-12-12 S. Marassi , R. Schneider , M. Limongi , A. Chieffi , L. Graziani , S. Bianchi

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

Using several variants of the cosmological Simba simulations, we investigate the impact of different feedback prescriptions on the cosmic star formation history. Adopting a global-to-local approach, we link signatures seen in global…

Astrophysics of Galaxies · Physics 2024-04-12 Lucie Scharré , Daniele Sorini , Romeel Davé

The delay time distribution (DTD) of Type-Ia supernovae (SNe Ia) is important for understanding chemical evolution, SN Ia progenitors, and SN Ia physics. Past estimates of the DTD in galaxy clusters have been deduced from SN Ia rates…

Astrophysics of Galaxies · Physics 2021-03-03 Jonathan Freundlich , Dan Maoz

We explore a class of simple non-equilibrium star formation models within the framework of a feedback-regulated model of the ISM, applicable to kiloparsec-scale resolved star formation relations (e.g. Kennicutt-Schmidt). Combining a…

Astrophysics of Galaxies · Physics 2019-05-02 Matthew E. Orr , Christopher C. Hayward , Philip F. Hopkins

Feedback from massive stars plays a key role in molecular cloud evolution. After the onset of star formation, the young stellar population is exposed by photoionization, winds, supernovae, and radiation pressure from massive stars. Recent…

We present a new, state-of-the-art computation of the Diffuse Supernova Neutrino Background (DSNB), where we use neutrino spectra from multi-dimensional, multi-second core collapse supernova simulations - including both neutron-star and…

High Energy Astrophysical Phenomena · Physics 2026-01-21 Cecilia Lunardini , Tomoya Takiwaki , Tomoya Kinugawa , Shunsaku Horiuchi , Kei Kotake

Based on the results of Chen & Li (2009) and Pakmor et al. (2010), we carried out a series of binary population synthesis calculations and considered two treatment of common envelope (CE) evolution, i.e. $\alpha$-formalism and…

Solar and Stellar Astrophysics · Physics 2015-05-20 Xiangcun Meng , Wencong Chen , Wuming Yang , Zhongmu Li

Supernova explosions and their remnants (SNRs) drive important feedback mechanisms that impact considerably the galaxies that host them. Then, the knowledge of the SNRs evolution is of paramount importance in the understanding of the…

Astrophysics of Galaxies · Physics 2019-06-26 Santiago Jimenez , Guillermo Tenorio-Tagle , Sergiy Silich