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Observations have suggested that galactic outflows contain substantial amounts of dense and clumpy molecular gas, creating favourable conditions for igniting star formation. Indeed, theoretical models and hydrodynamical simulations have…

We use cosmological hydrodynamic simulations to investigate how inflows, star formation, and outflows govern the the gaseous and metal content of galaxies. In our simulations, galaxy metallicities are established by a balance between…

宇宙学与河外天体物理 · 物理学 2015-05-27 Romeel Davé , Kristian Finlator , Benjamin D. Oppenheimer

Galaxy-scale outflows of gas, or galactic winds (GWs), driven by energy from star formation are a pivotal mechanism for regulation of star formation in the current model of galaxy evolution. Observations of this phenomenon have proliferated…

星系天体物理 · 物理学 2018-12-14 David S. N. Rupke

We investigate the role of supernova (SN)-driven galactic winds in the chemical enrichment of the intracluster medium (ICM). Such outflows on galactic scales have their origin in huge star forming regions and expel metal enriched material…

星系天体物理 · 物理学 2015-05-13 Verena Baumgartner , Dieter Breitschwerdt

We present an analysis of the gas outflow energetics of 529 main-sequence star-forming galaxies at z~1 using KMOS observations of the broad, underlying H-alpha and forbidden lines of [N II] and [S II]. Based on the stacked spectra for a…

We conduct a systematic study of galactic outflows in star-forming galaxies at $z\sim0$-$2$ based on the absorption lines of optical spectra taken from SDSS DR7, DEEP2 DR4, and Keck Erb et al. We carefully make stacked spectra of…

In this review we focus on the role jets and outflows play in the star and planet formation process. Our essential question can be posed as follows: are jets/outflows merely an epiphenomenon associated with star formation or do they play an…

太阳与恒星天体物理 · 物理学 2019-08-19 A. Frank , T. P. Ray , S. Cabrit , P. Hartigan , H. G. Arce , F. Bacciotti , J. Bally , M. Benisty , J. Eislöffel , M. Güdel , S. Lebedev , B. Nisini , A. Raga

Observational implications are derived for two standard models of supernovae-driven galactic winds: a freely expanding steady-state wind and a wind sourced by a self-similarly expanding superbubble including thermal heat conduction. It is…

星系天体物理 · 物理学 2016-07-27 Avery Meiksin

Cool clouds are expected to be destroyed and incorporated into hot supernova-driven galactic winds. The mass-loading of a wind by the cool medium modifies the bulk velocity, temperature, density, entropy, and abundance profiles of the hot…

星系天体物理 · 物理学 2021-10-13 Dustin D. Nguyen , Todd A. Thompson

Measurements of interstellar absorption lines in 18 ultraluminous infrared galaxies (ULIGs) have been combined with published data, in order to reassess the dependence of galactic outflow speeds on starburst luminosity and galactic mass.…

天体物理学 · 物理学 2010-04-06 Crystal L. Martin

We here investigate the possibility that the observed collimated outflows in luminous infrared galaxies (LIGs) and some Seyfert galaxies can be produced in a starburst (SB) environment. A nuclear disk can be quickly produced by gas infall…

天体物理学 · 物理学 2009-10-31 E. M. de Gouveia Dal Pino , G. A. Medina Tanco

Core collapse supernovae (SN) are the final stages of stellar evolution in massive stars during which the central region collapses, forms a neutron star (NS), and the outer layers are ejected. Recent explosion scenarios assumed that the…

天体物理学 · 物理学 2007-05-23 P. Hoeflich , A. Khokhlov , L. Wang

We study the properties of massive, galactic-scale outflows of molecular gas and investigate their impact on galaxy evolution. We present new IRAM PdBI CO(1-0) observations of local ULIRGs and QSO hosts: clear signature of massive and…

Supernova-driven galactic outflows play a vital but still poorly-understood role in galactic chemical evolution, and one of the largest uncertainties about them is the extent to which they consist of supernova ejecta that are unmixed, or…

星系天体物理 · 物理学 2025-04-28 Rongjun Huang , Aditi Vijayan , Mark R. Krumholz

Core collapse supernovae(SN) are the final stages of evolution in massive stars during which the central region collapses. Recent explosion scenarios assumed that the ejection is due to energy deposition by neutrinos into the envelope but…

天体物理学 · 物理学 2007-05-23 P. Hoeflich , A. Khokhlov , L. Wang , J. C. Wheeler , D. Baade

Feedback from supernovae is essential to understanding the self-regulation of star formation in galaxies. However, the efficacy of the process in a cosmological context remains unclear due to excessive radiative losses during the shock…

星系天体物理 · 物理学 2015-06-04 Taysun Kimm , Renyue Cen , Julien Devriendt , Yohan Dubois , Adrianne Slyz

Evolved massive stars are known to undergo outflow with high mass ejections, resulting in the loss of a substantial portion of their envelopes. One proposed mechanism driving these events is the release or deposition of energy within the…

太阳与恒星天体物理 · 物理学 2026-02-03 Bhawna Mukhija , Amit Kashi

We revisit the launch of the galactic outflow in M82 using hydrodynamic simulations. Employing a sink-particle module, we self-consistently resolve star formation and feedback, avoiding reliance on simplified models. We investigate the…

星系天体物理 · 物理学 2026-01-21 Tian-Rui Wang , Weishan Zhu , Xue-Fu Li , Wen-Sheng Hong , Long-Long Feng

Observations have suggested substantial departures from pressure equilibrium in the interstellar medium (ISM) in the plane of the Galaxy, even on scales under 50 pc. Nevertheless, multi-phase models of the ISM assume at least locally…

天体物理学 · 物理学 2007-05-23 Mordecai-Mark Mac Low , Dinshaw Balsara , Miguel A. Avillez , Jongsoo Kim

While feedback from massive stars exploding as supernovae (SNe) is thought to be one of the key ingredients regulating galaxy formation, theoretically it is still unclear how the available energy couples to the interstellar medium and how…

星系天体物理 · 物理学 2018-04-27 Matthew C. Smith , Debora Sijacki , Sijing Shen