Results 61 to 70 of about 293 (162)

An overall picture of EMP stars using the stellar abundances for galactic archaeology (SAGA) database [PDF]

open access: bronze, 2009
Takuma Suda   +7 more
openalex   +1 more source

Asteroseismology of Metal-poor Red Giants Observed by TESS

open access: yesThe Astrophysical Journal
Galactic archeology has long been limited by a lack of precise masses and ages for metal-poor stars in the Milky Way’s thick disk. However, with TESS providing a growing number of photometric observations, it is possible to calculate masses and ages for ...
Corin Marasco   +2 more
doaj   +1 more source

A Wave-corrected Assessment of the Local Midplane

open access: yesThe Astrophysical Journal
As the number of known Galactic structures mounts thanks to the Gaia Space Telescope, it is now pertinent to study methods for disentangling structures occupying the same regions of the Milky Way. Indeed, understanding the precise form of each individual
Ziyuan Yin, Austin Hinkel
doaj   +1 more source

On the Origin of Neutron-capture Elements in r-I and r-II Stars: A Differential-abundance Analysis

open access: yesThe Astrophysical Journal
We present a strictly line-by-line differential analysis of a moderately r -process-enhanced star ( r -I: HD 107752) with respect to a strongly r -process-enhanced star ( r -II: CS 31082-0001) to investigate the possible common origin of their heavy ...
Pallavi Saraf   +6 more
doaj   +1 more source

Predicting the geographic distribution of ancient Amazonian archaeological sites with machine learning. [PDF]

open access: yesPeerJ, 2023
Walker RS   +5 more
europepmc   +1 more source

THE K2 GALACTIC ARCHAEOLOGY PROGRAM DATA RELEASE I: ASTEROSEISMIC RESULTS FROM CAMPAIGN 1 [PDF]

open access: bronze, 2017
Dennis Stello   +13 more
openalex   +1 more source

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

open access: yesThe 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   +6 more
doaj   +1 more source

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