The Villafranca catalog of Galactic OB groups-II. From Gaia DR2 to EDR3 and ten new systems with O stars

JM Apellániz, RH Barbá, RF Aranda… - Astronomy & …, 2022 - aanda.org
Context. This is the second paper of a series on Galactic OB groups that uses astrometric
and photometric data from Gaia and spectral classifications from the Galactic O-Star …

Fundamental parameters of two O9-type giant stars: the (former) spectral classification standard HD 93249 A and ALS 12502 A

T Ansín, R Gamen, NI Morrell, RH Barba… - Monthly Notices of …, 2023 - academic.oup.com
The evolution of massive stars is not completely understood. Several phenomena affect their
birth, life, and death, multiplicity being one of them. In this context, the OWN and MONOS …

Non-synchronous rotations in massive binary systems-II. The case of HD 96264A

C Putkuri, R Gamen, NI Morrell, OG Benvenuto… - Astronomy & …, 2021 - aanda.org
Context. The OWN Survey has detected several O-type stars with composite spectra whose
individual components show very different line broadening. Some of these stars have been …

A new spectroscopic analysis of the massive O+ O type binary HD 54662 AB

RH Barba, C Sabín-Sanjulián, JI Arias… - Monthly Notices of …, 2020 - academic.oup.com
ABSTRACT HD 54662 AB is one of the three O+ OB binaries known so far with orbital period
longer than 1000 d, offering the opportunity to test scenarios of massive star formation and …

Rotational synchronisation of B-type binaries in 30 Doradus

DJ Lennon, PL Dufton, JI Villaseñor, N Langer… - arXiv preprint arXiv …, 2024 - arxiv.org
The spin evolution of stars in close binary systems can be strongly affected by tides. We
investigate the rotational synchronisation of the stellar components for 69 SB1 systems and …

Asynchronous Rotation of a Massive Star in Close Binary Systems

SV Chernov - Astrophysics, 2022 - Springer
The problem of asynchronous rotation of massive stars in close binary systems is
investigated in this paper. A massive star with twice the sun's mass, a convective core, and …

[PDF][PDF] Open problems in high-mass stellar evolution

S Ekström, G Meynet, C Georgy, R Hirschi… - Stars and their …, 2020 - orbi.uliege.be
Massive stars can roughly be divided into two categories: the one that will become red
supergiants at (or shortly before) the end of their life, and those that will become Wolf-Rayet …

Determinación de parámetros astrofísicos fundamentales de estrellas masivas

CE Putkuri - 2019 - notablesdelaciencia.conicet.gov.ar
Las estrellas masivas son de vital importancia para el Universo, ie son los mayores
contribuyentes de la radiación UV en regiones de formación estelar y las responsables de …

Properties of massive stars in Galactic binary systems

C Sabín Sanjulián, RH Barba, RC Gamen… - 2019 - notablesdelaciencia.conicet.gov.ar
Within the OWN project, we use high resolution spectroscopic data of the massive binary
system HD54662 to measure accurate radial velocities and disentangle the spectra of the …

[引用][C] Non-synchronous rotations in massive binary systems.