Extragalactic Stellar Astronomy with the Brightest Stars in the Universe [PDF]
Proceedings of the International Astronomical Union, 2007 Supergiants are objects in transition from the blue to the red (and vice versa) in the uppermost HRD. They are the intrinsically brightest ‘normal’ stars at visual light with absolute visual magnitudes up to −9.
Rolf P. Kudritzki +3 more
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Stellar Structure and Evolution
Fundamentals of Astrophysics, 2021 These lecture notes are intended for an advanced astrophysics course on Stellar Structure and Evolution given at Utrecht University (NS-AP434M). Their goal is to provide an overview of the physics of stellar interiors and its application to the theory of
Achim Weiss
semanticscholar +1 more source
Quiescent and Active Galactic Nuclei as Factories of Merging Compact Objects in the Era of Gravitational Wave Astronomy [PDF]
Universe, 2023 Galactic nuclei harbouring a central supermassive black hole (SMBH), possibly surrounded by a dense nuclear cluster (NC), represent extreme environments that house a complex interplay of many physical processes that uniquely affect stellar formation ...
M. A. Sedda, S. Naoz, B. Kocsis
semanticscholar +1 more source
Science with a Small Two-Band UV-Photometry Mission I: Mission Description and Follow-up Observations of Stellar Transients [PDF]
Space Science Reviews, 2023 This is the first in a collection of three papers introducing the science with an ultra-violet (UV) space telescope on an approximately 130 kg small satellite with a moderately fast re-pointing capability and a real-time alert communication system ...
N. Werner +35 more
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Dancing with the Stars: a Review on Stellar Multiplicity [PDF]
Bulletin de la Société royale des sciences de Liège, 2023 Stars like company. They are mostly formed in clusters and their lives are often altered by the presence of one or more companions. Interaction processes between components may lead to complex outcomes like Algols, blue stragglers, chemically altered ...
Thibault Merle
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Gravitational wave emission from dynamical stellar interactions [PDF]
Astronomy & Astrophysics, 2023 We are witnessing the dawn of gravitational wave (GW) astronomy. With currently available detectors, observations are restricted to GW frequencies in the range between ${\sim} 10\,\mathrm{Hz}$ and $10\,\mathrm{kHz}$, which covers the signals from mergers
J. Morán-Fraile +6 more
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Exploring the Milky Way stellar disk - A detailed elemental abundance study of 714 F and G dwarf stars in the solar neighbourhood [PDF]
, 2013 Aims. The aim of this paper is to explore and map the age and abundance structure of the stars in the nearby Galactic disk. Methods. We have conducted a high-resolution spectroscopic study of 714 F and G dwarf and subgiant stars in the Solar ...
T. Bensby +5 more
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Mass distribution in the Galactic Center based on interferometric astrometry of multiple stellar orbits [PDF]
Astronomy & Astrophysics, 2021 The stars orbiting the compact radio source Sgr A* in the Galactic Centre are precision probes of the gravitational field around the closest massive black hole.
G. C. R. Abuter +63 more
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Stellar initial mass function varies with metallicity and time [PDF]
Nature, 2022 A direct star-counting method of about 93,000 M-dwarf stars in the solar neighbourhood indicates a variable stellar initial mass function that depends on both metallicity and stellar age.
Jia-dong Li +6 more
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