Testing the cores of first ascent red-giant stars using the period spacing of g modes [PDF]
, 2015 In the context of the determination of stellar properties using asteroseismology, we study the influence of rotation and convective-core overshooting on the properties of red-giant stars.
Bossini, Diego +4 more
core +3 more sources
A New Method for the Asteroseismic Determination of the Evolutionary State of Red-Giant Stars [PDF]
, 2016 Determining the ages of red-giant stars is a key problem in stellar astrophysics. One of the difficulties in this determination is to know the evolutionary state of the individual stars -- i.e. have they started to burn Helium in their cores? That is the
Basu, Sarbani +3 more
core +4 more sources
Red giant collisions in the Galactic Centre [PDF]
Monthly Notices of the Royal Astronomical Society, 1999 10 pages, 11 figures, MNRAS (in press)
Vernon C. Bailey, M. B. Davies
openalex +4 more sources
Magnetic fields of 30 to 100 kG in the cores of red giant stars [PDF]
Nature, 2022 A red giant star is an evolved low- or intermediate-mass star that has exhausted its central hydrogen content, leaving a helium core and a hydrogen-burning shell.
Gang Li +3 more
semanticscholar +1 more source
A unicorn in monoceros: the 3 M⊙ dark companion to the bright, nearby red giant V723 Mon is a non-interacting, mass-gap black hole candidate [PDF]
Monthly notices of the Royal Astronomical Society, 2021 We report the discovery of the closest known black hole candidate as a binary companion to V723 Mon. V723 Mon is a nearby ($d\sim 460\, \rm pc$), bright (V ≃ 8.3 mag), evolved (Teff, giant ≃ 4440 K, and Lgiant ≃ 173 L⊙) red giant in a high mass ...
T. Jayasinghe +20 more
semanticscholar +1 more source
Comparing Tip of the Red Giant Branch Distance Scales: An Independent Reduction of the Carnegie-Chicago Hubble Program and the Value of the Hubble Constant [PDF]
, 2021 The tip of the red giant branch has been used to measure distances to 500 nearby galaxies with the Hubble Space Telescope (HST) which are available in the Color–Magnitude Diagrams and Tip of the Red Giant Branch (CMDs/TRGB) catalog on the Extragalactic ...
G. Anand +4 more
semanticscholar +1 more source
The Aarhus red giants challenge [PDF]
Astronomy & Astrophysics, 2020 Context.With the advent of space-based asteroseismology, determining accurate properties of red-giant stars using their observed oscillations has become the focus of many investigations due to their implications in a variety of fields in astrophysics.
George C. Angelou +37 more
openaire +18 more sources
Period spacings in red giants II. Automated measurement
, 2016 The space missions CoRoT and Kepler have provided photometric data of unprecedented quality for asteroseismology. A very rich oscillation pattern has been discovered for red giants, including mixed modes that are used to decipher the red giants interiors.
Mosser, B., Samadi, R., Vrard, M.
core +5 more sources
The Extragalactic Distance Database: The Color–Magnitude Diagrams/Tip of the Red Giant Branch Distance Catalog [PDF]
, 2021 The Extragalactic Distance Database (EDD) was created as a repository for high-quality, redshift-independent distances. A key component of EDD is the Color–Magnitude Diagrams/Tip of the Red Giant Branch (CMDs/TRGB) catalog, which provides information on ...
G. Anand +9 more
semanticscholar +1 more source