The Atari disk, a metal-poor stellar population in the disk system of the Milky Way

MK Mardini, A Frebel, A Chiti, Y Meiron… - The Astrophysical …, 2022 - iopscience.iop.org
We have developed a chemodynamical approach to assign 36,010 metal-poor SkyMapper
stars to various Galactic stellar populations. Using two independent techniques (velocity and …

The chemical abundance pattern of the extremely metal-poor thin disc star 2MASS J1808− 5104 and its origins

MK Mardini, A Frebel, R Ezzeddine… - Monthly Notices of …, 2022 - academic.oup.com
We present a high-resolution (R∼ 35 000), high signal-to-noise (S/N= 350) Magellan/MIKE
spectrum of the bright extremely metal-poor star 2MASS J1808− 5104. We find [Fe/H]=− 4.01 …

The r-process alliance: chemodynamically tagged groups of halo r-process-enhanced stars reveal a shared chemical-evolution history

D Gudin, D Shank, TC Beers, Z Yuan… - The Astrophysical …, 2021 - iopscience.iop.org
We derive dynamical parameters for a large sample of 446 r-process-enhanced (RPE) metal-
poor stars in the halo and disk systems of the Milky Way, based on data releases from the R …

The Pristine survey–IX. CFHT ESPaDOnS spectroscopic analysis of 115 bright metal-poor candidate stars

KA Venn, CL Kielty, F Sestito… - Monthly Notices of …, 2020 - academic.oup.com
ABSTRACT A chemo-dynamical analysis of 115 metal-poor candidate stars selected from
the narrow-band Pristine photometric survey is presented based on CFHT high-resolution …

Decoding the compositions of four bright r-process-enhanced stars

P Saraf, CA Prieto, T Sivarani… - Monthly Notices of …, 2023 - academic.oup.com
There has been a concerted effort in recent years to identify the astrophysical sites of the r-
process that can operate early in the galaxy. The discovery of many r-process-enhanced …

Cosmological insights into the early accretion of r-process-enhanced stars. I. A comprehensive chemodynamical analysis of LAMOST J1109+ 0754

MK Mardini, VM Placco, Y Meiron… - The Astrophysical …, 2020 - iopscience.iop.org
This study presents a comprehensive chemodynamical analysis of LAMOST J1109+ 0754, a
bright (V= 12.8), extremely metal-poor ([Fe/H]=− 3.17) star, with a strong r-process …

Metal-poor stars observed with the Magellan Telescope – IV. Neutron-capture element signatures in 27 main-sequence stars

MK Mardini, A Frebel, L Betre… - Monthly Notices of …, 2024 - academic.oup.com
We present a chemo-dynamical analysis for 27 near main-sequence turnoff metal-poor
stars, including 20 stars analysed for the first time. The sample spans a range in [Fe/H] from …

Metal-poor stars observed with the automated planet finder telescope. II. chemodynamical analysis of six low-metallicity stars in the halo system of the milky way

MK Mardini, VM Placco, A Taani, H Li… - The Astrophysical …, 2019 - iopscience.iop.org
In this work, we study the chemical compositions and kinematic properties of six metal-poor
stars with [Fe/H]<− 2.5 in the Galactic halo. From high-resolution (R∼ 110,000) …

[HTML][HTML] Assessing the complexity of orbital parameters after asymmetric kick in binary pulsars

A Taani, JC Vallejo, M Abu-Saleem - Journal of High Energy Astrophysics, 2022 - Elsevier
The dynamical characterization of the Millisecond Pulsar (MSP) parameters is a key issue in
understanding these systems. We present an analytical analysis of the orbital parameters of …

The r-process alliance: the peculiar chemical abundance pattern of RAVE J183013. 5− 455510

VM Placco, RM Santucci, Z Yuan… - The Astrophysical …, 2020 - iopscience.iop.org
The R-process Alliance: The Peculiar Chemical Abundance Pattern of RAVE J183013.5−455510
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