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Related papers: Unmasking Stellar Feedback-Driven Bubbles: Identif…

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Star clusters are fundamental units of stellar feedback and unique tracers of their host galactic properties. In this review, we will first focus on their constituents, i.e.\ detailed insight into their stellar populations and their…

Galactic infrared (IR) bubbles, which have shell-like structures in the mid-IR wavelengths, are known to contain massive stars near their centers. IR bubbles in inner Galactic regions ($|$l$|\leq$ 65$^{\circ}$, $|$b$|\leq$ 1$^{\circ}$) have…

Stars form in dense cores within molecular clouds and newly formed stars influence their natal environments. How stellar feedback impacts core properties and evolution is subject to extensive investigation. We performed a hierarchical…

Astrophysics of Galaxies · Physics 2024-10-23 K. R. Neralwar , D. Colombo , S. Offner , F. Wyrowski , K. M. Menten , A. Karska , M Y. Grudić , S. Neupane

We present results from thirteen cosmological simulations that explore the parameter space of the "Evolution and Assembly of GaLaxies and their Environments" (EAGLE) simulation project. Four of the simulations follow the evolution of a…

We present a new method for the detection and characterization of expansion in galaxy discs based on H{\alpha} Fabry-Perot spectroscopy, taking advantage of the high spatial and velocity resolution of our instrument (GH{\alpha}FaS). The…

Instrumentation and Methods for Astrophysics · Physics 2015-06-23 Artemi Camps-Fariña , Javier Zaragoza-Cardiel , John E. Beckman , Joan Font , Begoña García-Lorenzo , Santiago Erroz-Ferrer , Philippe Amram

The habitable zone is defined as the orbital region around a star where planetary feedback cycles buffer atmospheric greenhouse gases that, in combination with solar luminosity, maintain surface temperatures suitable for liquid water.…

Earth and Planetary Astrophysics · Physics 2025-09-04 Morgan Underwood , Adrian Lenardic , Johnny Seales , Benjamin Kwait-Gonchar

The interstellar medium of galaxies, with temperatures reaching several million degrees, provides a pivotal perspective for understanding the physical and chemical properties of star formation, galactic evolution, and their associated…

Astrophysics of Galaxies · Physics 2025-06-24 Chunyi Zhang , Junfeng Wang

All molecular clouds are observed to be turbulent, but the origin, means of sustenance, and evolution of the turbulence remain debated. One possibility is that stellar feedback injects enough energy into the cloud to drive observed motions…

Astrophysics of Galaxies · Physics 2016-12-28 Ryan D. Boyden , Eric W. Koch , Erik W. Rosolowsky , Stella S. R. Offner

Context. Stellar feedback regulates star formation and shapes the interstellar medium, yet its role during the collapse of molecular clouds remains uncertain over a wide range of initial conditions. Aims. We explore how stellar winds and…

Astrophysics of Galaxies · Physics 2026-05-13 S. Jiménez , D. Kománek , R. Wünsch , J. Palouš , S. Ehlerová , S. Martínez-González , A. Srbljanović

We show that the mass fraction of GMC gas (n>100 cm^-3) in dense (n>>10^4 cm^-3) star-forming clumps, observable in dense molecular tracers (L_HCN/L_CO(1-0)), is a sensitive probe of the strength and mechanism(s) of stellar feedback. Using…

Astrophysics of Galaxies · Physics 2014-11-13 Philip F. Hopkins , Desika Narayanan , Norman Murray , Eliot Quataert

Bubbles in the interstellar medium are produced by astrophysical sources, which continuously or explosively deposit large amount of energy into the ambient medium. These expanding bubbles can drive shocks in front of them, which dynamics is…

High Energy Astrophysical Phenomena · Physics 2015-06-12 M. V. Medvedev , A. Loeb

We present an analysis of the X-ray spectrum of the Local Bubble, obtained by simultaneously analyzing spectra from two XMM-Newton pointings on and off an absorbing filament in the Southern galactic hemisphere (b ~ -45 deg). We use the…

Astrophysics · Physics 2014-10-13 David B. Henley , Robin L. Shelton , K. D. Kuntz

Star formation and stellar feedback are interlinked processes that redistribute energy and matter throughout galaxies. When young, massive stars form in spatially clustered environments, they create pockets of expanding gas termed…

We study the chaotic-like behavior of cosmological simulations by quantifying how minute perturbations grow over time and manifest as macroscopic differences in galaxy properties. When we run pairs of 'shadow' simulations that are identical…

We study the propagation of bubbles of new vacuum in a radially inhomogeneous background filled with dust or radiation, and including a cosmological constant, as a first step in the analysis of the influence of inhomogeneities in the…

General Relativity and Quantum Cosmology · Physics 2017-03-17 F. A. Teppa Pannia , S. E. Perez Bergliaffa

The spiral structure of a spiral galaxy can be seen through different observational tracers such as the dust in the interstellar medium, the free electrons in ionized regions, the molecular gas, or the atomic hydrogen in H{\alpha} regions.…

Astrophysics of Galaxies · Physics 2022-04-20 David Felipe Barros Ramirez , Juan Carlos Muñoz-Cuartas

Investigating the bubbles generated by the interaction between asymptotic giant branch stellar outflows and the interstellar medium (ISM) is pivotal for elucidating the mechanism by which evolved low- to intermediate-mass stars enrich the…

Solar and Stellar Astrophysics · Physics 2025-09-30 Jun-Yang Liu , Yong Zhang , Xu-Jia Ouyang

The thermal and chemical properties of the hot diffuse intragroup medium (IGrM) provide important constraints on the feedback processes associated with massive galaxy formation and evolution. Here we explore these constraints via a detailed…

Astrophysics of Galaxies · Physics 2016-01-20 Lichen Liang , Fabrice Durier , Arif Babul , Romeel Davé , Benjamin D. Oppenheimer , Neal Katz , Mark Fardal , Tom Quinn

We predict the imprint of linear bubbly perturbations on the polarization and temperature anisotropies of the cosmic microwave background (CMB). We analytically model a bubbly density perturbation at the beginning of the radiation dominated…

Astrophysics · Physics 2009-10-31 Carlo Baccigalupi , Francesca Perrotta

We investigate the properties of the intracluster medium (ICM) that forms within N-body/hydrodynamical simulations of galaxy clusters in a \LambdaCDM cosmology. When radiative cooling and a simple model for galactic feedback are included,…

Astrophysics · Physics 2009-11-10 Scott T. Kay , Peter A. Thomas , Adrian Jenkins , Frazer R. Pearce