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Alexander P Ji
Alexander P Ji
Verified email at uchicago.edu - Homepage
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Year
Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis
MR Drout, AL Piro, BJ Shappee, CD Kilpatrick, JD Simon, C Contreras, ...
Science 358 (6370), 1570-1574, 2017
7662017
R-process enrichment from a single event in an ancient dwarf galaxy
AP Ji, A Frebel, A Chiti, JD Simon
Nature 531 (7596), 610-613, 2016
3892016
Early spectra of the gravitational wave source GW170817: Evolution of a neutron star merger
BJ Shappee, JD Simon, MR Drout, AL Piro, N Morrell, JL Prieto, D Kasen, ...
Science 358 (6370), 1574-1578, 2017
3262017
Complete element abundances of nine stars in the r-process galaxy Reticulum II
AP Ji, A Frebel, JD Simon, A Chiti
The Astrophysical Journal 830 (2), 93, 2016
1922016
The Caterpillar Project: A Large Suite of Milky Way Sized Halos
BF Griffen, AP Ji, GA Dooley, FA Gómez, M Vogelsberger, BW O’Shea, ...
The Astrophysical Journal 818 (1), 10, 2016
1332016
Descendants of the first stars: the distinct chemical signature of second-generation stars
T Hartwig, N Yoshida, M Magg, A Frebel, SCO Glover, FA Gómez, ...
Monthly Notices of the Royal Astronomical Society 478 (2), 1795-1810, 2018
1102018
Discovery of a nearby 1700 km s−1 star ejected from the Milky Way by Sgr A
SE Koposov, D Boubert, TS Li, D Erkal, GS Da Costa, DB Zucker, AP Ji, ...
Monthly Notices of the Royal Astronomical Society 491 (2), 2465-2480, 2020
1032020
The southern stellar stream spectroscopic survey (S5): Overview, target selection, data reduction, validation, and early science
TS Li, SE Koposov, DB Zucker, GF Lewis, K Kuehn, JD Simpson, AP Ji, ...
Monthly Notices of the Royal Astronomical Society 490 (3), 3508-3531, 2019
952019
SD 1313–0019: ANOTHER SECOND-GENERATION STAR WITH [Fe/H]=− 5.0, OBSERVED WITH THE MAGELLAN TELESCOPE
A Frebel, A Chiti, AP Ji, HR Jacobson, VM Placco
The Astrophysical Journal Letters 810 (2), L27, 2015
872015
Chemical Abundances in the Ultra-Faint Dwarf Galaxies Grus I and Triangulum II: Neutron-Capture Elements as a Defining Feature of the Faintest Dwarfs
AP Ji, JD Simon, A Frebel, KA Venn, TT Hansen
The Astrophysical Journal 870 (2), 83, 2019
832019
Preserving chemical signatures of primordial star formation in the first low-mass stars
AP Ji, A Frebel, V Bromm
Monthly Notices of the Royal Astronomical Society 454 (1), 659-674, 2015
792015
Measuring the Mass of the Large Magellanic Cloud with Stellar Streams Observed by S 5
N Shipp, D Erkal, A Drlica-Wagner, TS Li, AB Pace, SE Koposov, ...
The Astrophysical Journal 923 (2), 149, 2021
692021
The Southern Stellar Stream Spectroscopic Survey (S 5): Chemical Abundances of Seven Stellar Streams
AP Ji, TS Li, TT Hansen, AR Casey, SE Koposov, AB Pace, D Mackey, ...
The Astronomical Journal 160 (4), 181, 2020
692020
Identical or fraternal twins? The chemical homogeneity of wide binaries from Gaia DR2
K Hawkins, M Lucey, YS Ting, A Ji, D Katzberg, M Thompson, K El-Badry, ...
Monthly Notices of the Royal Astronomical Society 492 (1), 1164-1179, 2020
692020
Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina
TS Li, JD Simon, AB Pace, G Torrealba, K Kuehn, A Drlica-Wagner, ...
The Astrophysical Journal 857 (2), 145, 2018
672018
An extended halo around an ancient dwarf galaxy
A Chiti, A Frebel, JD Simon, D Erkal, LJ Chang, L Necib, AP Ji, H Jerjen, ...
Nature Astronomy 5 (4), 392-400, 2021
652021
HIGH-RESOLUTION SPECTROSCOPY OF EXTREMELY METAL-POOR STARS IN THE LEAST EVOLVED GALAXIES: BOÖTES II
AP Ji, A Frebel, JD Simon, M Geha
The Astrophysical Journal 817 (1), 41, 2016
652016
S 5: The Orbital and Chemical Properties of One Dozen Stellar Streams
TS Li, AP Ji, AB Pace, D Erkal, SE Koposov, N Shipp, GS Da Costa, ...
The Astrophysical Journal 928 (1), 30, 2022
642022
From actinides to zinc: Using the full abundance pattern of the brightest star in Reticulum II to distinguish between different r-process sites
AP Ji, A Frebel
The Astrophysical Journal 856 (2), 138, 2018
632018
RAVE J203843. 2–002333: The First Highly R-process-enhanced Star Identified in the RAVE Survey
VM Placco, EM Holmbeck, A Frebel, TC Beers, RA Surman, AP Ji, ...
The Astrophysical Journal 844 (1), 18, 2017
622017
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