Results 101 to 110 of about 56,706 (218)

The minimum stellar metallicity observable in the Galaxy

, 2008
The first stars fundamentally transformed the early Universe through their production of energetic radiation and the first heavy chemical elements. The impact on cosmic evolution sensitively depends on their initial mass function (IMF), which can be ...
Adelman-McCarthy, Anna Frebel, Barkana, Beers, Bondi, Bromm, Bromm, Carollo, Christlieb, Ciardi, Collet, Frebel, Frebel, Frebel, Freeman, Fulbright, Heger, Iben, Iwamoto, Jarrett L. Johnson, Johnson, Johnston, Karlsson, Lacey, Lee, Munn, Norris, Oey, Pagel, Salvadori, Schneider, Talbot, Tumlinson, Umeda, Volker Bromm, Yoshii   +35 more
core   +1 more source

Of gods and men: The gift of bicameral mentality in Lake Atitlán's Mayan oral literature

Anthropology of Consciousness, Volume 36, Issue 1, Spring 2025.
Abstract This study investigates contemporary Mayan oral stories through the lens of Julian Jaynes's theory on the origin of consciousness, aiming to identify a potential connection between the literary elements of these narratives and traits of pre‐consciousness outlined by Jaynes.
José M. Franco Rodríguez, Daniel Montoya   +1 more
wiley   +1 more source

The impact of red-giant asteroseismology on Galactic Archaeology

, 2023
Talk at PLATO stellar science meeting, Milazzo ...
openaire   +2 more sources

RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99

The Astrophysical Journal Letters
Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster with a
Evan Butler, Andrea Kunder, Zdenek Prudil, Kevin R. Covey, Macy Ball, Carlos Campos, Kaylen Gollnick, Julio Olivares Carvajal, Joanne Hughes, Kathryn Devine, Christian I. Johnson, A. Katherina Vivas, R. Michael Rich, Meridith Joyce, Iulia T. Simion, Tommaso Marchetti, Andreas J. Koch-Hansen, William I. Clarkson, Rebekah Kuss   +18 more
doaj   +1 more source

Starry Messages: Searching for Signatures of Interstellar Archaeology

, 2009
Searching for signatures of cosmic-scale archaeological artifacts such as Dyson spheres or Kardashev civilizations is an interesting alternative to conventional SETI.
Carrigan Jr, Richard A.
core  

Carbon-Enhanced Metal-Poor Stars, the Cosmic Microwave Background, and the Stellar IMF in the Early Universe

, 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., Duquennoy A., Jason Tumlinson   +2 more
core   +1 more source

Changing Earth‐Sun Distance Drifts Global Circulation Patterns

Geophysical Research Letters, Volume 52, Issue 4, 28 February 2025.
Abstract Modern observations reveal that large‐scale ocean‐atmosphere circulation (OAC) is drifting toward higher latitudes under global warming. Paleoclimate proxies indicate that similar OAC drifts occurred on orbital timescale as well. However, the characteristics and underlying mechanisms remain unclear.
Hu Yang, Yufei Liu, Tainã M. L. Pinho, Xiaoxu Shi, Yi Zhong, Qingsong Liu, Gerrit Lohmann, Jiping Liu, Jingyu Zhang, Xufeng Zheng, Dake Chen   +10 more
wiley   +1 more source

The Virtual Database of the Documented Human Osteological Collection (DHOC) of the Certosa Cemetery of Bologna (Italy, 19th–20th Century)

American Journal of Biological Anthropology, Volume 186, Issue 2, February 2025.
ABSTRACT This article aims to introduce a new virtual database of skeletal human remains from the Documented Human Osteological Collection (DHOC) of the Certosa Cemetery of Bologna (Emilia Romagna, northern Italy) housed at the University of Bologna. The Virtual DHOC of the Certosa Cemetery of Bologna (VirtualDHOC) is stored in the publicly accessible ...
Rita Sorrentino, Annalisa Pietrobelli, Davide Mameli, Valentina Mariotti, Teresa Nicolosi, Maria Giovanna Belcastro   +5 more
wiley   +1 more source

StarHorse: A Bayesian tool for determining stellar masses, ages, distances, and extinctions for field stars

, 2018
Understanding the formation and evolution of our Galaxy requires accurate distances, ages and chemistry for large populations of field stars. Here we present several updates to our spectro-photometric distance code, that can now also be used to estimate ...
Anders, Friedrich, Beers, Timothy C., Chiappini, Cristina, Crestani, Juliana, da Costa, Luiz N., Fernández-Trincado, J. G., García-Hernández, Domingo Aníbal, Maia, Marcio A. G., Ponte, Marina Dal, Queiroz, Anna B. A., Roman-Lopes, Alexandre, Santiago, Basílio X., Stassun, Keivan G., Steinmetz, Matthias, Zamora, Olga   +14 more
core   +1 more source

Shiva and Shakti: Presumed Proto-Galactic Fragments in the Inner Milky Way

The Astrophysical Journal
Using Gaia Data Release 3 astrometry and spectroscopy, we study two new substructures in the orbit–metallicity space of the inner Milky Way: Shakti and Shiva.
Khyati Malhan, Hans-Walter Rix
doaj   +1 more source