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Compact binary mergers involving at least one neutron star are promising sites for the synthesis of $\textit{r}$-process elements found in stars and planets. However, mergers can take place at significant offsets from their host galaxies,…

Astrophysics of Galaxies · Physics 2022-11-09 Benjamin Amend , Jonathan Zrake , Dieter H. Hartmann

A randomly chosen star in today's Universe is most likely to live in a galaxy with a stellar mass between that of the Milky Way and Andromeda. Yet it remains uncertain how the structural evolution of these bulge-disk systems proceeded. Most…

In the interstellar medium of the Milky Way, certain elements -- e.g., Mg, Si, Al, Ca, Ti, Fe -- reside predominantly in interstellar dust grains. These grains absorb, scatter, and emit electromagnetic radiation, heat the interstellar…

Astrophysics · Physics 2007-05-23 B. T. Draine

The growing evidence pointing at core-collapse supernovae as large dust producers makes young massive stellar clusters ideal laboratories to study the evolution of dust immersed into a hot plasma. Here we address the stochastic injection of…

Astrophysics of Galaxies · Physics 2016-01-05 Sergio Martinez-Gonzalez , Guillermo Tenorio-Tagle , Sergiy Silich

Carbon-rich Wolf-Rayet (WR) stars are significant contributors of carbonaceous dust to the galactic environment, however the mechanisms and conditions for formation and subsequent evolution of dust around these stars remain open questions.…

Solar and Stellar Astrophysics · Physics 2025-11-19 Yinuo Han , Ryan M. T. White , Joseph R. Callingham , Ryan M. Lau , Benjamin J. S. Pope , Noel D. Richardson , Peter G. Tuthill

The remnant resulting from the merger of two neutron stars produces neutrinos in copious amounts. In this paper we present the neutrino emission results obtained via Newtonian, high-resolution simulations of the coalescence event. These…

Astrophysics · Physics 2011-07-18 S. Rosswog , M. Liebendoerfer

Merger processes play an important role in galaxy formation and evolution. To study the influence of merger processes on the evolution of dust properties and cosmic star formation rate, we investigate a local sample of major merger galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2012-12-11 F. -T. Yuan , T. T. Takeuchi , Y. Matsuoka , V. Buat , D. Burgarella , J. Iglesias-Páramo

The surroundings of massive protostars constitute an accretion disc which has numerically been shown to be subject to fragmentation and responsible for luminous accretion-driven outbursts. Moreover, it is suspected to produce close binary…

Solar and Stellar Astrophysics · Physics 2017-12-06 D. M. -A. Meyer , R. Kuiper , W. Kley , K. G. Johnston , E. Vorobyov

Motivated by recent observational constraints on dust reprocessed emission in star forming galaxies at $z\sim 6$ and above we use the very-large cosmological hydrodynamical simulation \bluetides\ to explore predictions for the amount of…

Astrophysics of Galaxies · Physics 2017-12-20 Stephen M. Wilkins , Yu Feng , Tiziana Di Matteo , Rupert Croft , Christopher C. Lovell , Peter Thomas

We estimate the fraction of core-collapse supernovae (CCSNe) that remain undetected by optical SN searches due to obscuration by large amounts of dust in their host galaxies. This effect is especially important in luminous and ultraluminous…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-27 S. Mattila , T. Dahlen , A. Efstathiou , E. Kankare , J. Melinder , A. Alonso-Herrero , M. A. Perez-Torres , S. Ryder , P. Vaisanen , G. Ostlin

Dust particles in orbit around a star drift toward the central star by the Poynting-Robertson effect and pile up by sublimation. We analytically derive the pile-up magnitude, adopting a simple model for optical cross sections. As a result,…

Earth and Planetary Astrophysics · Physics 2017-08-23 Hiroshi Kobayashi , Hiroshi Kimura , Sei-ichiro Watanabe , Tetsuo Yamamoto , Sebastian Mueller

When giant planets form, they grow by accreting gas and dust. HD 142527 is a young star that offers a scaled-up view of this process. It has a broad, asymmetric ring of gas and dust beyond \about 100 AU and a wide inner gap. Within the gap,…

Solar and Stellar Astrophysics · Physics 2015-06-22 Timothy J. Rodigas , Katherine B. Follette , Alycia Weinberger , Laird Close , Dean C. Hines

In 2006 Vega was discovered to display excess near-infrared emission. Surveys now detect this phenomenon for one fifth of main-sequence stars, across various spectral types and ages. The excesses are interpreted as populations of small, hot…

Earth and Planetary Astrophysics · Physics 2020-09-30 Tim D. Pearce , Alexander V. Krivov , Mark Booth

Distance estimates derived from spectroscopy or parallax have been unified by considering extinction by large grains. The addition of such a population of what is called Dark Dust to models of the diffuse interstellar medium is tested…

Astrophysics of Galaxies · Physics 2023-02-22 Ralf Siebenmorgen

Coalescing compact binaries are thought to be involved in a wide variety of astrophysical phenomena. In particular, they are important sources of gravitational radiation for both ground-based and space-based laser-interferometer detectors,…

Astrophysics · Physics 2007-05-23 F. A. Rasio

The cold outer regions of protoplanetary disks are expected to contain a midplane-centered layer where gas-phase CO molecules freeze out and their overall abundance is low. The layer then manifests itself as a void in the channel maps of CO…

Earth and Planetary Astrophysics · Physics 2025-08-13 O. Chrenko , S. Casassus , R. O. Chametla

The co-evolution between black holes and galaxies suggests that feedback of active galactic nuclei influence host galaxies through ejecting radiative and kinetic energies to surroundings. Larger scale outflow in local universe are…

Astrophysics of Galaxies · Physics 2020-09-09 Zhenzhen Li , Hongyan Zhou , Lei Hao , Xiheng Shi

Over the past decades, rest-frame ultraviolet (UV) observations have provided large samples of UV luminous galaxies at redshift (z) greater than 6, during the so-called epoch of reionization. While a few of these UV identified galaxies…

Massive stars drive the evolution of the interstellar medium through their radiative and mechanical energy input. After their birth, they form bubbles of hot gas surrounded by a dense shell. Traditionally, the formation of bubbles is…

Solar and Stellar Astrophysics · Physics 2014-07-09 B. B. Ochsendorf , S. Verdolini , N. L. J. Cox , O. Berné , L. Kaper , A. G. G. M. Tielens