Results 1 to 10 of about 240 (119)
Chemo-Dynamical Evolution of the ISM in Galaxies [PDF]
Astrophysics and Space Science, 2004 Chemo-dynamical models have been introduced in the late eighties and are a generally accepted tool for understanding galaxy evolution. They have been successfully applied to one-dimensional problems, e.g. the evolution of non-rotating galaxies, and two-dimensional problems, e.g. the evolution of disk galaxies.
Harfst, Stefan +2 more
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Modelling Galaxies with a 3D Multi-Phase ISM [PDF]
Publications of the Astronomical Society of Australia, 2004 AbstractWe present a modified TREE-SPH code to model galaxies in three dimensions. The model includes a multi-phase description of the interstellar medium which combines two numerical techniques. A diffuse warm/hot gas phase is modelled by SPH, whereas a cloudy medium is represented by a sticky particle scheme.
Harfst, Stefan +2 more
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The ISM in Nearby Dwarf Galaxies [PDF]
Highlights of Astronomy, 1998 In recent years, color-magnitude diagrams have revealed that nearby dwarf galaxies have a fascinating variety of star formation histories. The fact that the dwarfs have periods of star formation activity and inactivity raises several questions. How do the properties of the interstellar medium (ISM) in a galaxy affect its star formation rate?
L. M. Young, K. Y. Lo
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ISM Enrichment and Local Pollution in Dwarf Galaxies [PDF]
EAS Publications Series, 2011 The fate of metals after they are released in starburst episodes is still unclear. What phases of the interstellar medium are involved, in which timescales? Evidence has grown over the past few years that the neutral phase of blue compact dwarf (BCD) galaxies may be metal- deficient as compared to the ionized gas of their HII regions.
Kunth, D., Lebouteiller, Vianney
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Hot ISM in young elliptical galaxies [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractUsing Chandra and XMM-Newton X-ray observations of young, post-merger elliptical galaxies, we present X-ray characteristics of age-related observational results, by comparing with typical old elliptical galaxies in terms of X-ray properties of their low-mass X-ray binaries (LMXBs) and hot interstellar matter (ISM).
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Interaction of jets with the ISM of radio galaxies [PDF]
Astrophysics and Space Science, 2007 We present three dimensional simulations of the interaction of a light hypersonic jet with an inhomogeneous thermal and turbulently supported disk in an elliptical galaxy, including Radio and multi-band X-ray visualisations. These simulations are applicable to the GPS/CSS phase of some extragalactic radio sources. We identify four generic phases in the
Sutherland, Ralph, Bicknell, Geoffrey
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The Relationship between Galaxy ISM and Circumgalactic Gas Metallicities [PDF]
The Astrophysical Journal, 2019 Abstract We present interstellar matter (ISM) and circumgalactic medium (CGM) metallicities for 25 absorption systems associated with isolated star-forming galaxies ( ) with 9.4 ≤ log(M */M ⊙) ≤ 10.9 and with absorption detected within ...
Glenn G. Kacprzak +5 more
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Extreme galaxies during reionization: testing ISM and disc models [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Accepted in MNRAS; 19 pages; 10 figures; 4 ...
Muñoz, Joseph A, Furlanetto, Steven R
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MODELING DUST EVOLUTION IN GALAXIES WITH A MULTIPHASE, INHOMOGENEOUS ISM [PDF]
The Astrophysical Journal, 2016 ABSTRACT We develop a model of dust evolution in a multiphase, inhomogeneous interstellar medium (ISM) using hydrodynamical simulations of giant molecular clouds in a Milky Way–like spiral galaxy. We improve the treatment of dust growth by accretion in the ISM to investigate the role of the temperature-dependent sticking coefficient and ...
Svitlana Zhukovska +3 more
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ALMACAL V: absorption-selected galaxies with evidence for excited ISMs [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2018 ABSTRACT Gas-rich galaxies are selected efficiently via quasar absorption lines. Recently, a new perspective on such absorption-selected systems has opened up by studying the molecular gas content of absorber host galaxies using ALMA CO emission line observations. Here, we present an analysis of multiple CO transitions ($L^{\prime }_{\rm
A Klitsch +8 more
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