Results 111 to 120 of about 56,706 (218)

Elemental and isotopic abundances and chemical evolution of galaxies [PDF]

arXiv, 2012
Elemental and isotopic abundances are the fossils of galactic archaeology. The observed [X/Fe]-[Fe/H] relations in the Galactic bulge and disk and the mass-metallicity relation of galaxies are roughly reproduced with chemodynamical simulations of galaxies under the standard \Lambda-CDM picture and standard stellar physics. The isotopic ratios such as ^{
arxiv  

RAVE as a Gaia precursor: what to expect from the Gaia RVS?

, 2015
The Radial Velocity Experiment (RAVE) is a large wide-field spectroscopic stellar survey of the Milky Way. Over the period 2003-2013, 574,630 spectra for 483,330 stars have been amassed at a resolution of R=7500 in the Ca-triplet region of 8410-8795\AA ...
Steinmetz, Matthias
core   +1 more source

Composition of Giants 1° North of the Galactic Center: Detailed Abundance Trends for 21 Elements Observed with IGRINS

The Astrophysical Journal
We report the first high-resolution, detailed abundances of 21 elements for giants in the Galactic bulge/bar within 1° of the Galactic plane, where high extinction has rendered such studies challenging. Our high-signal-to-noise-ratio and high-resolution,
Govind Nandakumar, Nils Ryde, Gregory Mace, Kyle F. Kaplan, Niels Nieuwmunster, Daniel Jaffe, R. Michael Rich, Mathias Schultheis, Oscar Agertz, Eric Andersson, Christopher Sneden, Emily Strickland, Brian Thorsbro   +12 more
doaj   +1 more source

A Comprehensive Study of Open Cluster Chemical Homogeneity Using APOGEE and Milky Way Mapper Abundances

The Astrophysical Journal
Stars in an open cluster are assumed to have formed from a broadly homogeneous distribution of gas, implying that they should be chemically homogeneous.
Amaya Sinha, Gail Zasowski, Peter Frinchaboy, Katia Cunha, Diogo Souto, Jamie Tayar, Keivan Stassun   +6 more
doaj   +1 more source

The K2 Galactic Archaeology Program Data Release 3: Age-abundance Patterns in C1–C8 and C10–C18 [PDF]

, 2022
Joel Zinn, Dennis Stello, Y. Elsworth, R. A. García, T. Kallinger, S. Mathur, B. Mosser, Marc Hon, L. Bugnet, Caitlin D. Jones, Claudia Reyes, Sanjib Sharma, Ralph Schönrich, Jack T. Warfield, Rodrigo Luger, Andrew Vanderburg, Chiaki Kobayashi, Marc H. Pinsonneault, Jennifer A. Johnson, Daniel Huber, Sven Buder, Meridith Joyce, Joss Bland‐Hawthorn, L. Casagrande, Geraint F. Lewis, A. Miglio, Thomas Nordlander, G. R. Davies, Gayandhi De Silva, W. J. Chaplin, V. Silva Aguirre   +30 more
openalex   +1 more source

Remote sensing archaeology: The next century. [PDF]

Innovation (Camb), 2022
Luo L, Wang X, Guo H.
europepmc   +1 more source

Chemical Abundances in the Nuclear Star Cluster of the Milky Way: Alpha-element Trends and Their Similarities with the Inner Bulge

The Astrophysical Journal
Chemical characterization of the Galactic center is essential for understanding its formation and structural evolution. Trends of alpha ( α ) elements, such as magnesium, silicon, and calcium, serve as powerful diagnostic tools, offering insights into ...
Nils Ryde, Govind Nandakumar, Mathias Schultheis, Georges Kordopatis, Paola di Matteo, Misha Haywood, Rainer Schödel, Francisco Nogueras-Lara, R. Michael Rich, Brian Thorsbro, Gregory N. Mace, Oscar Agertz, Anish M. Amarsi, Jessica Kocher, Marta Molero, Livia Orglia, Giulia Pagnini, Emanuele Spitoni   +17 more
doaj   +1 more source

Galactic ArchaeoLoGy based on K-band and Optical Spectroscopy [PDF]

, 2022

openalex   +1 more source

Galactic Archaeology with neutron-capture elements in the Bulge

, 2023
In the last years, the search for the oldest stars have started to investigate the central region of our Galaxy. The Galactic bulge hosts extremely old stars, with ages compatible with the ages of the oldest halo stars. The data coming from these recent observations present new signatures in neutron capture elements.
openaire   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source