Results 71 to 80 of about 5,324 (165)
, 2007 The characteristic mass of stars at early times may have been higher than today owing to the cosmic microwave background (CMB). This study proposes that (1) the testable predictions of this "CMB-IMF" hypothesis are an increase in the fraction of carbon ...
Diemand J. +2 more
core +1 more source
‘CELTIC BRITAIN’ IN PRE‐ROMAN ARCHAEOLOGY, RECONSIDERED
Oxford Journal of Archaeology, Volume 44, Issue 4, Page 446-461, November 2025.Summary For forty years archaeologists have avoided referring to pre‐Roman Britain and its inhabitants as ‘Celtic’ on the grounds that contemporaries never described them as such. This is incorrect. The second‐century BC astronomer Hipparchus quotes Pytheas (c. 320 BC) as having referred to Britons as ‘Keltoi’.
Patrick Sims‐Williams
wiley +1 more source
[X/Fe] Marks the Spot: Mapping Chemical Azimuthal Variations in the Galactic Disk with APOGEE
The Astrophysical JournalChemical cartography of the Galactic disk provides insights into its structure and assembly history over cosmic time. In this work, we use chemical cartography to explore chemical gradients and azimuthal substructure in the Milky Way disk with giant ...
Zoe Hackshaw +6 more
doaj +1 more source
A Multifaceted Spatial Analysis of Tomb Distribution in Blemmyan Berenike (Eastern Desert of Egypt)
Archaeological Prospection, Volume 32, Issue 4, Page 777-795, October/December 2025.ABSTRACT This study examines the spatial and visual organisation of tombs in the post–Roman Berenike located in Egypt's Eastern Desert. Archaeological surveys, remote sensing, geophysical methods, excavations and GIS‐based analyses are used for a comprehensive understanding of the spatial patterns and cultural significance behind the positions and ...
Mariusz Gwiazda +4 more
wiley +1 more source
The Astrophysical JournalObservations of the Milky Way’s stellar halo find that it is predominantly comprised of a radially biased population of stars, dubbed the Gaia Sausage–Enceladus, or GSE.
Dylan Folsom +5 more
doaj +1 more source
Tracing Back a Second-generation Star Stripped from Terzan 5 by the Galactic Bar
The Astrophysical Journal LettersThe Galactic bulge hosts the Milky Way’s oldest stars, possibly coming from disrupted globular clusters (GCs) or the bulge’s primordial building blocks, making these stars witnesses to the Galaxy’s early chemical enrichment.
Stefano O. Souza +8 more
doaj +1 more source
Where are the Population III Star Relics in the Simulated Milky Way Analogs?
The Astrophysical JournalUsing six Milky Way analogs with two different numerical resolutions from the Auriga simulation, we investigate the total mass, spatial distribution, and kinematics of the Population III (Pop III) star relics in the Milky Way analogs at z = 0.
Hang Yang +5 more
doaj +1 more source
Massive stars: stellar models and stellar yields, impact on Galactic Archaeology
, 2017 The physics of massive stars depends (at least) on convection, mass loss by stellar winds, rotation, magnetic fields and multiplicity. We briefly discuss the impact of the first three processes on the stellar yields trying to identify some guidelines for
Choplin, Arthur +3 more
core +1 more source
A Detailed Chemical Analysis of the Red Giant Orbiting Gaia BH3: From Lithium to Thorium
The Astrophysical JournalPreliminary astrometric data from the fourth data release of the Gaia mission revealed a 33 M _⊙ dark companion to a metal-poor red giant star, deemed Gaia BH3.
Zoe Hackshaw +2 more
doaj +1 more source