Time Evolution Images of the Hypergiant RW Cephei during the Rebrightening Phase Following the Great Dimming

Autor: Narsireddy Anugu, Douglas R. Gies, Rachael M. Roettenbacher, John D. Monnier, Miguel Montargés, Antoine Mérand, Fabien Baron, Gail H. Schaefer, Katherine A. Shepard, Stefan Kraus, Matthew D. Anderson, Isabelle Codron, Tyler Gardner, Mayra Gutierrez, Rainer Köhler, Karolina Kubiak, Cyprien Lanthermann, Olli Majoinen, Nicholas J. Scott, Wolfgang Vollmann

Publikováno v: The Astrophysical Journal Letters, Vol 973, Iss 1, p L5 (2024)

Stars with initial masses larger than 8 M _⊙ undergo substantial mass loss through mechanisms that remain elusive. Unraveling the origins of this mass loss is important for comprehending the evolutionary path of these stars, the type of supernova e

Externí odkaz: https://doaj.org/article/e0df7c00a1a44228a686453fb20e1664

The Great Dimming of the Hypergiant Star RW Cephei: CHARA Array Images and Spectral Analysis

Autor: Narsireddy Anugu, Fabien Baron, Douglas R. Gies, Cyprien Lanthermann, Gail H. Schaefer, Katherine A. Shepard, Theo ten Brummelaar, John D. Monnier, Stefan Kraus, Jean-Baptiste Le Bouquin, Claire L. Davies, Jacob Ennis, Tyler Gardner, Aaron Labdon, Rachael M. Roettenbacher, Benjamin R. Setterholm, Wolfgang Vollmann, Costantino Sigismondi

Publikováno v: The Astronomical Journal, Vol 166, Iss 2, p 78 (2023)

The cool hypergiant star RW Cephei is currently in a deep photometric minimum that began several years ago. This event bears a strong similarity to the Great Dimming of the red supergiant Betelgeuse that occurred in 2019–2020. We present the first

Externí odkaz: https://doaj.org/article/3d78bb109b98401f9c555876aca37665

Critical Metallicity of Cool Supergiant Formation. I. Effects on Stellar-mass Loss and Feedback

Autor: Po-Sheng Ou, Ke-Jung Chen, You-Hua Chu, Sung-Han Tsai

Publikováno v: The Astrophysical Journal, Vol 944, Iss 1, p 34 (2023)

This paper systematically studies the relation between metallicity and mass loss of massive stars. We perform one-dimensional stellar evolution simulations and build a grid of ∼2000 models with initial masses ranging between 11 and 60 M _⊙ and ab

Externí odkaz: https://doaj.org/article/80f6613151d54cc98c1cba2e8c539f81

A Catalog of Galactic Multiple Systems with a Red Supergiant and a B Star

Autor: M. Pantaleoni González, J. Maíz Apellániz, Rodolfo H. Barbá, Ignacio Negueruela

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
Universidad de Alicante (UA)
Instituto Nacional de Técnica Aeroespacial (INTA)

Binary systems composed of a red supergiant and a B star are useful probes of stellar evolution. We have searched the literature to create a catalog of 108 Galactic systems of such type, which is presented here.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1778728555eddef1b278e8c00796584
http://hdl.handle.net/10261/234042

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