Results 41 to 50 of about 5,332 (183)

Constraining the primordial initial mass function with stellar archaeology

, 2015
We present a new near-field cosmological probe of the initial mass function (IMF) of the first stars. Specifically, we constrain the lower-mass limit of the Population III (Pop III) IMF with the total number of stars in large, unbiased surveys of the ...
Bromm, Volker, Glover, Simon C. O., Hartwig, Tilman, Klessen, Ralf S.   +3 more
core   +2 more sources

Minor epic: Notes toward a different “Anthropoetry”

Anthropology and Humanism, Volume 51, Issue 1, June 2026.
Abstract Anthropologists have often turned to poetry as a means of accessing emotional registers of which conventional academic prose is unable to avail. In doing so, they have tacitly conflated poetry with lyric poetry, today probably the most widely practiced poetic genre, associated in particular with the expression of inner feelings and subjectival
Stuart McLean
wiley   +1 more source

The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way

The Astronomical Journal
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolution ...
Jack T. Warfield, Joel C. Zinn, Jessica Schonhut-Stasik, James W. Johnson, Marc H. Pinsonneault, Jennifer A. Johnson, Dennis Stello, Rachael L. Beaton, Yvonne Elsworth, Rafael A. García, Savita Mathur, Benoît Mosser, Aldo Serenelli, Jamie Tayar   +13 more
doaj   +1 more source

Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS)

, 2013
The Subaru Prime Focus Spectrograph (PFS) is a massively-multiplexed fiber-fed optical and near-infrared 3-arm spectrograph (N_fiber=2400 ...
Aihara, Hiroaki, Arimoto, Nobuo, Bundy, Kevin, Chiba, Masashi, Cohen, Judith, Doré, Olivier, Ellis, Richard, Fèvre, Olivier Le, Graves, Genevieve, Greene, Jenny E., Gunn, James E., Heckman, Timothy, Hirata, Chris, Ho, Paul, Kneib, Jean-Paul, Lin, Lihwai, More, Surhud, Murayama, Hitoshi, Nagao, Tohru, Ouchi, Masami, Seiffert, Michael, Silverman, John, Sodré Jr, Laerte, Spergel, David N., Strauss, Michael A., Sugai, Hajime, Suto, Yasushi, Takada, Masahiro, Takami, Hideki, Wyse, Rosemary   +29 more
core   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, Volume 104, Issue 5, Page 2206-2224, May 2026.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source

Revealing the Origins of Galactic Globular Clusters via their Mg–Al Abundances

The Astrophysical Journal Letters
Many Galactic globular clusters (GCs) originated in diverse host galaxies before being subsequently incorporated into the Milky Way through hierarchical galaxy assembly. Identifying their origins is crucial for revealing galaxy properties at early times.
Shihui Lin, Baitian Tang, Genghao Liu, José G. Fernández-Trincado, Douglas Geisler, Guy Worthey, Dante Minniti   +6 more
doaj   +1 more source

Very Large Spectroscopic Surveys with the VLT

, 2008
Recently, it has been recognised that very large spectroscopic surveys (several million spectra) are required to advance our understanding of Dark Energy (via baryonic wiggles) and the detailed history of our Local Group of galaxies (via Galactic ...
Parry, Ian R.
core   +1 more source

Uncertainties in models of stellar structure and evolution [PDF]

, 2014
Numerous physical aspects of stellar physics have been presented in Ses- sion 2 and the underlying uncertainties have been tentatively assessed. We try here to highlight some specific points raised after the talks and during the general discus- sion at ...
A. Bonaca, A. Maeder, A. Miglio, A.-M. Broomhall, B. Paxton, C. Charbonnel, C. Charbonnel, C. Charbonnel, C. Chiappini, D. Geisler, D. Reimers, F. D’Antona, F. D’Antona, G. Houdek, H. Bruntt, H. Pablo, I. McDonald, J. Meléndez, J. Molenda-Żakowicz, J. Montalbán, K. Brogaard, K.-P. Schröder, L. Casagrande, L. Girardi, L. Origlia, L. Siess, M. Asplund, M. Gabriel, M. W. Jeffries Jr, M. Yıldız, N. Lagarde, P. Eggenberger, P. P. Eggleton, P. P. Eggleton, R. J. Stancliffe, R. K. Ulrich, S. Basu, S. Kato, V. Castellani, V. Silva Aguirre   +39 more
core   +3 more sources

The end stage of barrier estuary infill: Insights from Jack Smith Lake, Southeastern Australia

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
Infill model for the saline coastal lake estuary, Jack Smith Lake. Abstract Jack Smith Lake in southeastern Australia is an infilled saline coastal lake, disconnected from the ocean by a foredune barrier. This study explores the Holocene infill history of this estuary in order to understand the end‐stage evolution of barrier estuarine systems with ...
David M. Kennedy, Ainsley Perkin, Runjie Yuan, Ashleigh J. Rogers, Bruno David, Russell Mullett, Gunaikurnai Land and Waters Aboriginal Corporation   +6 more
wiley   +1 more source

Radial Migration in Spiral Galaxies

, 2014
The redistribution of stars in galactic disks is an important aspect of disk galaxy evolution. Stars that efficiently migrate in such a way that does not also appreciably heat their orbits can drastically affect the stellar populations observed today and
Debattista, V. P., Roškar, R.
core   +1 more source