Results 51 to 60 of about 11,425 (209)

RED SUPERGIANT STARS AS COSMIC ABUNDANCE PROBES: KMOS OBSERVATIONS IN NGC 6822 [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted for publication in ...
Patrick, L.   +7 more
openaire   +3 more sources

Properties of luminous red supergiant stars in the Magellanic Clouds

open access: yesAstronomy & Astrophysics, 2023
Context. There is evidence that some red supergiants (RSGs) experience short-lived phases of extreme mass loss, producing copious amounts of dust. These episodic outburst phases help strip the hydrogen envelope from evolved massive stars, drastically affecting their evolution.
de Wit, S.   +8 more
openaire   +5 more sources

Trans‐Crustal Geophysical Responses Beneath the Supergiant Timmins‐Porcupine Orogenic Gold Camp, Canada

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.
Abstract A new 80‐site magnetotelluric (MT) survey, integrated with reprocessed seismic reflection profiles, across the supergiant Timmins‐Porcupine gold camp of the Abitibi greenstone belt (AGB) was conducted to investigate the architecture of crustal‐scale structures.
A. Q. Adetunji   +6 more
wiley   +1 more source

The Early Cambrian Mianyang‐Changning Intracratonic Sag and Its Control on Petroleum Accumulation in the Sichuan Basin, China

open access: yesGeofluids, Volume 2017, Issue 1, 2017., 2017
The older and deeper hydrocarbon accumulations receive increasing attention across the world, providing more technical and commercial challenges to hydrocarbon exploration. We present a study of an asymmetrical, N‐S striking intracratonic sag which developed across the Sichuan basin, south China, from Late Ediacaran to Early Cambrian times.
Shugen Liu   +10 more
wiley   +1 more source

Identifying Red Supergiants in the Local Group Using JWST Photometry. I. NGC 6822, Sextans A, NGC 300, Wolf–Lundmark–Melotte, and IC 1613

open access: yesThe Astrophysical Journal
Red supergiants (RSGs) are crucial for studying the properties and evolution of massive stars. It is representative to conduct a census of RSGs across the Local Group, which spans a broad metallicity range.
Zhi-wen Li   +3 more
doaj   +1 more source

Betelgeuse, the Prototypical Red Supergiant

open access: yesGalaxies
The behavior of the bright red supergiant, Betelgeuse, is described with results principally from the past 6 years. The review includes imaging, photometry, and spectroscopy to record the Great Dimming of 2019–2020.
Andrea K. Dupree, Miguel Montargès
doaj   +1 more source

Yellow and Red Supergiants in the Large Magellanic Cloud

open access: yes, 2012
Due to their transitionary nature, yellow supergiants provide a critical challenge for evolutionary modeling. Previous studies within M31 and the SMC show that the Geneva evolutionary models do a poor job at predicting the lifetimes of these short-lived ...
Ardeberg   +65 more
core   +1 more source

XMM‐Newton Observations of the Peculiar Be X‐Ray Binary A0538‐66

open access: yesAstronomische Nachrichten, Volume 346, Issue 1, January 2025.
ABSTRACT A0538‐66 is a neutron star/Be x‐ray binary located in the Large Magellanic Cloud and, since its discovery in the 70s, it showed a peculiar behavior that makes it a unique object in the high‐mass x‐ray binaries scene: the extremely eccentric orbit (e=0.72$$ e=0.72 $$), the short spin period of the neutron star (P=69$$ P=69 $$ ms), the episodes ...
Michela Rigoselli   +3 more
wiley   +1 more source

The Observer’s Guide to the Gamma‐Ray Burst Supernova Connection

open access: yesAdvances in Astronomy, Volume 2017, Issue 1, 2017., 2017
We present a detailed report of the connection between long‐duration gamma‐ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained what we know about GRB‐SNe.
Zach Cano   +4 more
wiley   +1 more source

Modeling of Granulation in Red Supergiants in the Magellanic Clouds with the Gaussian Process Regressions

open access: yesThe Astrophysical Journal
The granulation of red supergiants (RSGs) in the Magellanic Clouds is systematically investigated by combining the latest RSG samples and light curves from the Optical Gravitational Lensing Experiment and the All-Sky Automated Survey for Supernovae.
Zehao Zhang   +4 more
doaj   +1 more source

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