JS
Joshua D. Simon
astro-ph.GAastro-ph.SRastro-ph.COastro-phastro-ph.HEastro-ph.IMastro-ph.EPhep-exhep-phphysics.pop-ph
On Valency
published · living versionsW_k32ev6em·v1 · currentpublished
Maximizing Science in the Era of LSST: A Community-Based Study of Needed US Capabilities
with Joan Najita, Beth Willman, Douglas P. Finkbeiner, Ryan J. Foley +46
1 version
W_tct389yc·v1published
W_k8s73tq4·v1published
W_ny2xyxmq·v1published
W_pgxhv7hh·v1published
W_c4syvjnq·v1published
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Preprints & journals
197 papers in the corpus · 2001–2026Black hole astrometric binaries in the Roman Galactic Bulge Time Domain Survey2608.24998v2 · Casey Y. Lam, Jessica R. Lu, Kareem El-Badry et al.2026 · 0 citationsarXiv
Spectroscopic follow-up of compact object binary candidates from Gaia DR3: White dwarfs, neutron stars, black holes, and the parallax zeropoint2608.06453v2 · Kareem El-Badry, David W. Latham, Hans-Walter Rix et al.2026 · 0 citationsarXiv
Lithium as a Signpost for Compact Object Binary Candidates in the LAMOST Medium Resolution Survey2608.03098v1 · Yang Shen, Joshua D. Simon, Kareem El-Badry et al.2026 · 0 citationsarXiv
The DECam MAGIC Survey Mapping the Ancient Galaxy in CaHK: Overview and Summary of Early Science2605.26581v1 · A. Chiti, A. Drlica-Wagner, A. B. Pace et al.2026 · 1 citationarXiv
Hubble Astrometry for the Local Group and Beyond in the 2030s2605.24191v1 · S. Tony Sohn, Paul Bennet, Kevin Andrew McKinnon et al.2026 · 0 citationsarXiv
Probing the IMF in the Early Universe -- Direct measurements in the Boötes I UFD with JWST/NIRCam2605.15069v2 · Keyi Ding, Mario Gennaro, Roberto J. Avila et al.2026 · 0 citationsKeyi Ding et al 2026 ApJ 1009 94
TOI-7169 b: A Hot Jupiter Transiting a Metal-Poor Star2603.25787v2 · Joshua D. Simon, Joseph E. Rodriguez, Jhon Yana Galarza et al.2026 · 0 citationsAstronom.J.172:118,2026
Radial Velocity Orbital Solutions for Candidate Black Hole and Neutron Star Binary Systems in the Gaia Data Release 3 Catalog2603.20371v2 · Joshua D. Simon, Casey Y. Lam, Kareem El-Badry et al.2026 · 0 citationsAstrophys.J.1007:160,2026
A Chemodynamical Census of the Milky Way's Ultra-Faint Compact Satellites. I. A First Population-Level Look at the Internal Kinematics and Metallicities of 19 Extremely-Low-Mass Halo Stellar Systems2602.17652v1 · William Cerny, Ting S. Li, Andrew B. Pace et al.2026 · 0 citationsarXiv
Giant Planets and Eccentric Orbits Are Common Around Galactic Thick Disc Stars2512.17072v3 · Thiago Ferreira, Jhon Yana Galarza, Henrique Reggiani et al.2025 · 0 citationsarXiv
The Apache Point Observatory extra-Galactic Evolution Experiment (APOeGEE): Chemical Abundance Trends for Seven Dwarf Spheroidal Galaxies in the APOGEE Survey2511.04365v1 · Matthew Shetrone, Rachael L. Beaton, Christian R. Hayes et al.2025 · 2 citationsarXiv
The R-Process Alliance: Exploring the cosmic scatter among ten r-process sites with stellar abundances2510.25500v1 · Mila Racca, Terese T. Hansen, Ian U. Roederer et al.2025 · 6 citationsA&A 704, A282 (2025)
A search for black holes with metal-poor stellar companions: I. Survey sample selection and single epoch radial velocity follow-up2510.17746v1 · Casey Y. Lam, Joshua D. Simon, Kareem El-Badry et al.2025 · 2 citationsarXiv
No Observational Evidence for Dark Matter Nor a Large Metallicity Spread in the Extreme Milky Way Satellite Ursa Major III / UNIONS 12510.02431v2 · William Cerny, Daisy Bissonette, Alexander P. Ji et al.2025 · 4 citationsarXiv
Wide binaries in an ultra-faint dwarf galaxy: discovery, population modeling, and a nail in the coffin of primordial black hole dark matter2509.04555v2 · Cheyanne Shariat, Kareem El-Badry, Mario Gennaro et al.2025 · 8 citationsarXiv
Chemodynamics of BoötesI with : Revised Velocity Gradient, Dark Matter Density, and Galactic Chemical Evolution Constraints2509.02546v1 · Nathan R. Sandford, Ting S. Li, Sergey E. Koposov et al.2025 · 1 citationarXiv
Not-so-heavy metal(s): Chemical Abundances in the Ultra-faint Dwarf Galaxies Eridanus IV and Centaurus I2508.11012v1 · Mair'ead E Heiger, Alexander P Ji, Ting S Li et al.2025 · 0 citationsarXiv
A second-generation star in a relic dwarf galaxy2508.04053v2 · Anirudh Chiti, Vinicius M. Placco, Andrew B. Pace et al.2025 · 4 citationsarXiv
A Spectroscopic Search for Dormant Black Holes in Low-Metallicity Binaries2507.12532v2 · Pranav Nagarajan, Kareem El-Badry, Henrique Reggiani et al.2025 · 7 citationsarXiv
Spectroscopic Analysis of Pictor II: a very low metallicity ultra-faint dwarf galaxy bound to the Large Magellanic Cloud2506.21841v2 · A. B. Pace, T. S. Li, A. P. Ji et al.2025 · 9 citationsarXiv
Sifting for a Stream: The Morphology of the Stellar Stream2506.21410v2 · Benjamin Cohen, Alexander P. Ji, Peter S. Ferguson et al.2025 · 1 citationarXiv
A Bimodal Metallicity Distribution Function in the Ultra-Faint Dwarf Galaxy Reticulum II2506.16462v2 · Alice M. Luna, Alexander P. Ji, Anirudh Chiti et al.2025 · 4 citationsarXiv
The Hubble Space Telescope Survey of M31 Satellite Galaxies IV. Survey Overview and Lifetime Star Formation Histories2501.13152v1 · A. Savino, D. R. Weisz, A. E. Dolphin et al.2025 · 21 citationsarXiv
A Fast, Analytic Empirical Model of the Gaia Data Release 3 Astrometric Orbit Catalog Selection Function2411.00654v2 · Casey Y. Lam (Carnegie Observatories), Kareem El-Badry, Joshua D. Simon (Carnegie Observatories)2024 · 6 citationsarXiv
HIP 8522: A Puzzling Young Solar Twin with the Lowest Detected Lithium2410.17590v1 · Jhon Yana Galarza, Diego Lorenzo-Oliveira, Thiago Ferreira et al.2024 · 0 citationsarXiv
Eridanus III and DELVE 1: Carbon-rich Primordial Star Clusters or the Smallest Dwarf Galaxies?2410.08276v1 · Joshua D. Simon, Ting S. Li, Alexander P. Ji et al.2024 · 14 citationsarXiv
Discovery and Spectroscopic Confirmation of Aquarius III: A Low-Mass Milky Way Satellite Galaxy2410.00981v1 · W. Cerny, A. Chiti, M. Geha et al.2024 · 13 citationsarXiv
Detailed abundances of the planet-hosting TOI-1173 A/B system: Possible evidence of planet engulfment in a very wide binary2407.20949v1 · Jhon Yana Galarza, Henrique Reggiani, Thiago Ferreira et al.2024 · 8 citationsarXiv
LAMOST J1010+2358 is not a Pair-Instability Supernova Relic2404.17078v2 · Pierre N. Thibodeaux, Alexander P. Ji, William Cerny et al.2024 · 7 citationsarXiv
Chemical Diversity on Small Scales -- Abundance Analysis of the Tucana V Ultra-Faint Dwarf Galaxy2403.13060v1 · Terese T. Hansen, Joshua D. Simon, Ting S. Li et al.2024 · 16 citationsarXiv
TOI-1173 A : The First Inflated Super-Neptune in a Wide Binary System2403.06240v2 · Jhon Yana Galarza, Thiago Ferreira, Diego Lorenzo-Oliveira et al.2024 · 6 citationsarXiv
Signatures of tidal disruption of the Hercules ultra-faint dwarf galaxy2403.00921v1 · Xiaowei Ou, Anirudh Chiti, Nora Shipp et al.2024 · 14 citationsarXiv
Deep Hubble Space Telescope Photometry of LMC and Milky Way Ultra-Faint Dwarfs: A careful look into the magnitude-size relation2402.08731v1 · Hannah Richstein, Nitya Kallivayalil, Joshua D. Simon et al.2024 · 0 citationsarXiv
A neutron star candidate in a 2-year orbit2402.06722v2 · Kareem El-Badry, Joshua D. Simon, Henrique Reggiani et al.2024 · 25 citationsarXiv
The Faint Satellite System of NGC 253: Insights into Low-Density Environments and No Satellite Plane2401.14457v1 · Burcin Mutlu-Pakdil, David J. Sand, Denija Crnojevi'c et al.2024 · 23 citationsarXiv
Enrichment by Extragalactic First Stars in the Large Magellanic Cloud2401.11307v2 · Anirudh Chiti, Mohammad Mardini, Guilherme Limberg et al.2024 · 22 citationsarXiv
Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream2401.02476v2 · Sam A. Usman, Alexander P. Ji, Ting S. Li et al.2024 · 13 citationsarXiv
Chemical Analysis of the Brightest Star of the Cetus II Ultra-Faint Dwarf Galaxy Candidate2310.12090v1 · K. B. Webber, T. T. Hansen, J. L. Marshall et al.2023 · 0 citationsarXiv
Reading Between the (Spectral) Lines: Magellan/IMACS spectroscopy of the Ultra-faint Dwarf Galaxies Eridanus IV and Centaurus I2308.08602v1 · M. E. Heiger, T. S. Li, A. B. Pace et al.2023 · 0 citationsarXiv
Roman CCS White Paper: Characterizing the Galactic population of isolated black holes2306.12514v2 · Casey Y. Lam, Natasha Abrams, Jeff Andrews et al.2023 · 0 citationsarXiv
NANCY: Next-generation All-sky Near-infrared Community surveY2306.11784v1 · Jiwon Jesse Han, Arjun Dey, Adrian M. Price-Whelan et al.2023 · 2 citationsarXiv
The Hubble Space Telescope Survey of M31 Satellite Galaxies II. The Star Formation Histories of Ultra-Faint Dwarf Galaxies2305.13360v2 · A. Savino, D. R. Weisz, E. D. Skillman et al.2023 · 36 citationsarXiv
Evidence for multiple nucleosynthetic processes from carbon enhanced metal-poor stars in the Carina dwarf spheroidal galaxy2305.02316v1 · T. T. Hansen, J. D. Simon, T. S. Li et al.2023 · 17 citationsarXiv
Spectroscopic analysis of Milky Way outer halo satellites: Aquarius II and Bootes II2302.03708v1 · Jordan Bruce, Ting S. Li, Andrew B. Pace et al.2023 · 17 citationsarXiv
Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II2212.00810v1 · Joshua D. Simon, Thomas M. Brown, Burcin Mutlu-Pakdil et al.2022 · 31 citationsarXiv
A non-interacting Galactic black hole candidate in a binary system with a main-sequence star2210.05003v2 · Sukanya Chakrabarti, Joshua D. Simon, Peter A. Craig et al.2022 · 110 citationsarXiv
Six More Ultra-Faint Milky Way Companions Discovered in the DECam Local Volume Exploration Survey2209.12422v1 · W. Cerny, C. E. Mart'inez-V'azquez, A. Drlica-Wagner et al.2022 · 61 citationsarXiv
Report of the Topical Group on Cosmic Probes of Dark Matter for Snowmass 20212209.08215v3 · Alex Drlica-Wagner, Chanda Prescod-Weinstein, Hai-Bo Yu et al.2022 · 2 citationsarXiv
Chemical Abundances of the Typhon Stellar Stream2207.04016v2 · Alexander P. Ji, Rohan P. Naidu, Kaley Brauer et al.2022 · 10 citationsarXiv
Metal Mixing in the R-Process Enhanced Ultra-Faint Dwarf Galaxy Reticulum II2207.03499v2 · Alexander P. Ji, Joshua D. Simon, Ian U. Roederer et al.2022 · 37 citationsarXiv
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