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We show that the optically-thick dusty envelopes surrounding young high-mass stars are subject to the photon bubble instability. The infrared radiation passing through the envelope amplifies magnetosonic disturbances, with growth rates in…

Astrophysics · Physics 2011-02-11 N. J. Turner , E. Quataert , H. W. Yorke

We use the kinetic theory of nucleation to explore the properties of dust nucleation in sub-saturated vapors. Due to radiation losses, the sub-critical clusters have a smaller temperature compared to their vapor. This alters the dynamical…

Astrophysics · Physics 2015-05-13 Davide Lazzati

In this paper we will examine the consequence of a canonical theory of quantum dust collapse in 2+1 dimensions. The solution of the WDW equation describing the collapse indicates that collapsing shells outside the apparent horizon are…

General Relativity and Quantum Cosmology · Physics 2016-03-02 Souvik Sarkar , Cenalo Vaz , L. C. R. Wijewardhana

Millimeter astronomy provides valuable information on the birthplaces of planetary systems. In order to compare theoretical models with observations, the dust component has to be carefully calculated. Here, we aim to study the effects of…

Earth and Planetary Astrophysics · Physics 2022-10-12 Remo Burn , Alexandre Emsenhuber , Jesse Weder , Oliver Völkel , Hubert Klahr , Til Birnstiel , Barbara Ercolano , Christoph Mordasini

We propose a model to describe an evolution of a bubble cluster with rupture. In a special case, the equation is reduced to a single parabolic equation with evaporation for the thickness of a liquid layer covering bubbles. We postulate that…

Analysis of PDEs · Mathematics 2023-08-10 Yoshikazu Giga , Yuki Ueda

The nucleation and evolution of bubbles are investigated in the model of an $O(3)$-symmetric scalar field coupled to gravity in the high temperature limit. It is shown that, in addition to the well-known bubble of which the inside region is…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Yoonbai Kim , Kei-ichi Maeda , Nobuyuki Sakai

Significant leaps in the understanding of quantum systems have been driven by the exploration of geometry, topology, dimensionality, and interactions with ultracold atomic ensembles. A system where atoms evolve while confined on an…

The identification and tracking of stellar feedback-driven galaxy bubbles is an important topic in star formation and galactic structure research. However, current observational analysis of bubbles is limited in scope; information on bubble…

Astrophysics of Galaxies · Physics 2026-05-12 Aaron Angress , Michael M. Foley , Sarah M. R. Jeffreson , Alyssa Goodman , Lars Hernquist

We study the dynamics of charged, spherically symmetric dust shells in the presence of a positive cosmological constant. We find generalizations of the well-known solutions in asymptotically flat spacetime, in particular orbits into…

General Relativity and Quantum Cosmology · Physics 2022-09-07 Christoph Giese , Jochen Zahn

We prepare a general framework for analyzing the dynamics of a cylindrical shell in the spacetime with cylindrical symmetry. Based on the framework, we investigate a particular model of a cylindrical shell-collapse with rotational pressure,…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Masafumi Seriu

Enhancing the efficiency of water electrolysis, which can be severely impacted by the nucleation and growth of bubbles, is key in the energy transition. In this combined experimental and numerical study, in-situ bubble evolution and…

We study the evolution of growing vacuum bubbles. The bubble walls interact with the surrounding fluid and may, consequently, reach a terminal velocity. If the mean free path of the particles in the fluid is much shorter than the bubble…

High Energy Physics - Phenomenology · Physics 2024-11-25 Tomasz Krajewski , Marek Lewicki , Martin Vasar , Ville Vaskonen , Hardi Veermäe , Mateusz Zych

The decay of metastable 'false vacuum' states via bubble nucleation plays a crucial role in many cosmological scenarios. Cold-atom analog experiments will soon provide the first empirical probes of this process, with potentially…

Quantum Gases · Physics 2025-08-20 Alexander C. Jenkins , Hiranya V. Peiris , Andrew Pontzen

According to recent models, gamma-ray bursts apparently explode in a wide variety of ambient densities ranging from ~ 10^{-3} to 30 cm^{-3}. The lowest density environments seem, at first sight, to be incompatible with bursts in or near…

Astrophysics · Physics 2009-11-06 John Scalo , J. Craig Wheeler

We perform real-time hydrodynamical simulations of the growth of bubbles formed during cosmological first-order phase transitions under the assumption of local thermal equilibrium. We confirm that pure hydrodynamic backreaction can lead to…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-08 Tomasz Krajewski , Marek Lewicki , Mateusz Zych

Dust lifetime derived from an isolated supernova (SN) evolution in the interstellar medium is known to be an order of magnitude shorter than the time needed to replenish dust mass by its production in various Galactic sources. We show,…

Astrophysics of Galaxies · Physics 2026-01-01 Evgenii O. Vasiliev , Biman B. Nath

Polymer droplets subjected to a heated environment have significance in several fields ranging from spray drying and powder formation to surface coating. In the present work, we investigate the evaporation of a high viscoelastic modulus…

Soft Condensed Matter · Physics 2023-09-28 Gannena K S Raghuram , Durbar Roy , D Chaitanya Kumar Rao , Aloke Kumar , Saptarshi Basu

Phase transitions ruled by nucleation and growth can occur by nonrandom arrangement of nuclei. This is verified, for instance, in thin film growth at solid surfaces by vapor condensation or by electrodeposition where, around each nucleus, a…

Statistical Mechanics · Physics 2025-06-11 M. Tomellini

Brown dwarfs and giant gas planets are substellar objects whose spectral appearance is determined by the chemical composition of the gas and the solids/liquids in the atmosphere. Atmospheres of substellar objects possess two major scale…

Astrophysics · Physics 2007-05-23 Christiane Helling

We develop a new approach to building cosmological models, in which small pieces of perturbed Minkowski space are joined together at reflection-symmetric boundaries in order to form a global, dynamical space-time. Each piece of this…

General Relativity and Quantum Cosmology · Physics 2016-04-12 Viraj A. A. Sanghai , Timothy Clifton
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