John C. Wilson
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View article: Characterizing TESS-identified Quadruple- and Higher-order Eclipsing Binaries. I. Speckle Imaging with DSSI and HRCam
Characterizing TESS-identified Quadruple- and Higher-order Eclipsing Binaries. I. Speckle Imaging with DSSI and HRCam Open
NASA’s TESS mission has unveiled a plethora of eclipsing binaries (EBs), among them hundreds of triples and higher-order, hierarchical systems. These complex targets require follow-up observations to enable full characterization of system …
View article: Characterizing TESS-Identified Quadruple and Higher Order Eclipsing Binaries: I. Speckle Imaging with DSSI and HRCam
Characterizing TESS-Identified Quadruple and Higher Order Eclipsing Binaries: I. Speckle Imaging with DSSI and HRCam Open
NASA's TESS mission has unveiled a plethora of eclipsing binaries (EBs), among them hundreds of triples and higher order, hierarchical systems. These complex targets require follow-up observations to enable full characterization of system …
View article: The New SDSS 2.5 m Telescope Wide-field Corrector for SDSS-V
The New SDSS 2.5 m Telescope Wide-field Corrector for SDSS-V Open
SDSS-V is the fifth generation of the Sloan Digital Sky Survey and is an ambitious follow-up to a project that has been producing ground-breaking science for more than two decades. SDSS-V uses two dedicated 2.5 m telescopes—the SDSS telesc…
View article: Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m s<sup>−1</sup> RV Precision for APOGEE in the Plate Era
Improving Radial Velocities by Marginalizing over Stars and Sky: Achieving 30 m s<sup>−1</sup> RV Precision for APOGEE in the Plate Era Open
The radial velocity catalog from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) is unique in its simultaneously large volume and high precision as a result of its decade-long survey duration, multiplexing (600 fibers),…
View article: Observations with the Differential Speckle Survey Instrument. XI. First Year of Observations from Apache Point Observatory
Observations with the Differential Speckle Survey Instrument. XI. First Year of Observations from Apache Point Observatory Open
The Differential Speckle Survey Instrument (DSSI) was relocated to the Astrophysical Research Consortium 3.5 m telescope at Apache Point Observatory (APO) in early 2022. Here we present results from the first year of observations along wit…
View article: Exploring the origin of the distance bimodality of stars in the periphery of the Small Magellanic Cloud with APOGEE and <i>Gaia</i>
Exploring the origin of the distance bimodality of stars in the periphery of the Small Magellanic Cloud with APOGEE and <i>Gaia</i> Open
The Magellanic Cloud system represents a unique laboratory for study of both interacting dwarf galaxies and the ongoing process of the formation of the Milky Way and its halo. We focus on one aspect of this complex, three-body interaction …
View article: SDSS-IV from 2014 to 2016: A Detailed Demographic Comparison over Three Years
SDSS-IV from 2014 to 2016: A Detailed Demographic Comparison over Three Years Open
The Sloan Digital Sky Survey (SDSS) is one of the largest international astronomy organizations. We present demographic data based on surveys of its members from 2014, 2015 and 2016, during the fourth phase of SDSS (SDSS-IV). We find about…
View article: Erratum: “Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N” (2023, ApJS, 265, 50)
Erratum: “Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N” (2023, ApJS, 265, 50) Open
View article: A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE Open
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), α -element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point O…
View article: Exploring the Origin of the Distance Bimodality of Stars in the Periphery of the Small Magellanic Cloud with APOGEE and Gaia
Exploring the Origin of the Distance Bimodality of Stars in the Periphery of the Small Magellanic Cloud with APOGEE and Gaia Open
The Magellanic Cloud system represents a unique laboratory for study of both interacting dwarf galaxies and the ongoing process of the formation of the Milky Way and its halo. We focus on one aspect of this complex, 3 body interaction - th…
View article: A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE
A Tale of Two Disks: Mapping the Milky Way with the Final Data Release of APOGEE Open
We present new maps of the Milky Way disk showing the distribution of metallicity ([Fe/H]), $α$-element abundances ([Mg/Fe]), and stellar age, using a sample of 66,496 red giant stars from the final data release (DR17) of the Apache Point …
View article: Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N
Characterization of Low-mass Companions to Kepler Objects of Interest Observed with APOGEE-N Open
We report the characterization of 28 low-mass (0.02 M ⊙ ≤ M 2 ≤ 0.25 M ⊙ ) companions to Kepler objects of interest (KOIs), eight of which were previously designated confirmed planets. These objects were detected as transiting companions t…
View article: Characterization of low-mass companions to $\textit{Kepler}$ objects of interest observed with APOGEE-N
Characterization of low-mass companions to $\textit{Kepler}$ objects of interest observed with APOGEE-N Open
We report the characterization of 28 low-mass ($0.02\mathrm{~M_\odot}\le\mathrm{~M_{2}}\le0.25\mathrm{~M_\odot}$) companions to $\textit{Kepler}$ objects of interest (KOIs), eight of which were previously designated confirmed planets. Thes…
View article: A measurement of the distance to the Galactic centre using the kinematics of bar stars
A measurement of the distance to the Galactic centre using the kinematics of bar stars Open
The distance to the Galactic centre R0 is a fundamental parameter for understanding the Milky Way, because all observations of our Galaxy are made from our heliocentric reference point. The uncertainty in R0 limits our knowledge of many as…
View article: Chemical Cartography with APOGEE: Mapping Disk Populations with a 2-process Model and Residual Abundances
Chemical Cartography with APOGEE: Mapping Disk Populations with a 2-process Model and Residual Abundances Open
We apply a novel statistical analysis to measurements of 16 elemental abundances in 34,410 Milky Way disk stars from the final data release (DR17) of APOGEE-2. Building on recent work, we fit median abundance ratio trends [X/Mg] versus [Mg…
View article: A direct measurement of the distance to the Galactic center using the kinematics of bar stars
A direct measurement of the distance to the Galactic center using the kinematics of bar stars Open
The distance to the Galactic center $R_0$ is a fundamental parameter for understanding the Milky Way, because all observations of our Galaxy are made from our heliocentric reference point. The uncertainty in $R_0$ limits our knowledge of m…
View article: Mosquito Research - Recent Advances in Pathogen Interactions, Immunity, and Vector Control Strategies
Mosquito Research - Recent Advances in Pathogen Interactions, Immunity, and Vector Control Strategies Open
With around 3,500 species identified so far, mosquitoes can be found in virtually every environment and continent around the globe. Blood-feeding biters (e.g., Anopheles, Culex, Aedes, Ochlerotatus, and Mansonia) are among the most influen…
View article: Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances
Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances Open
We apply a novel statistical analysis to measurements of 16 elemental abundances in 34,410 Milky Way disk stars from the final data release (DR17) of APOGEE-2. Building on recent work, we fit median abundance ratio trends [X/Mg] vs. [Mg/H]…
View article: Exploring the impact of bi-modal dust particle size distributions on the present-day Martian climate with the 3D NASA Ames Mars Global Climate Model
Exploring the impact of bi-modal dust particle size distributions on the present-day Martian climate with the 3D NASA Ames Mars Global Climate Model Open
The dust cycle drives the present-day Mars climate, but many questions regarding the mechanisms of its evolution remain. In particular, despite new sets of observations for the 2018 global dust storm and new modeling efforts, climate model…
View article: Building a standardized Observing System Simulation Experiment (OSSE) framework for Mars
Building a standardized Observing System Simulation Experiment (OSSE) framework for Mars Open
Whitepaper #110 submitted to the Planetary Science and Astrobiology Decadal Survey 2023-2032. Topics: Mars; other: Improved design of future atmospheric observing systems for Mars; other science themes: Atmospheric Modeling and Data Assimi…
View article: Exploring changes in dust particles size distribution on Mars during 2018 Global Dust Storm with a 3D Global Climate Model
Exploring changes in dust particles size distribution on Mars during 2018 Global Dust Storm with a 3D Global Climate Model Open
The 2018 Global Dust Storm (GDS) has been observed on Mars from the surface and from orbit. Here we focus on the surface temperatures measured locally by REMS/MSL in Gale crater and column dust IR opacities observed globally by Mars Climat…
View article: Simulation of the 2018 Global Dust Storm on Mars Using the NASA Ames Mars GCM: A Multi-Tracer Approach
Simulation of the 2018 Global Dust Storm on Mars Using the NASA Ames Mars GCM: A Multi-Tracer Approach Open
Global dust storms are the largest, longest-lasting, most dramatic and thermodynamically significant dust events on Mars. They are produced from the combination of multiple local and regional lifting events, and maintained by positive-radi…
View article: Added value of harmonization and consistency of laboratories’ accreditation to the development of the global market
Added value of harmonization and consistency of laboratories’ accreditation to the development of the global market Open
Laboratories are the largest group of stakeholders of the International Organization for Laboratory Accreditation (ILAC). The impact of laboratory activities as independent entities that ensure the safety and quality of products and servic…
View article: Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code – II. The Southern clusters and overview
Homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code – II. The Southern clusters and overview Open
We investigate the Fe, C, N, O, Mg, Al, Si, K, Ca, Ce, and Nd abundances of 2283 red giant stars in 31 globular clusters from high-resolution spectra observed in both the Northern and Southern hemisphere by the SDSS-IV APOGEE-2 survey. Thi…
View article: Cognitive rehabilitation for attention and memory in people with multiple sclerosis: a randomized controlled trial (CRAMMS)
Cognitive rehabilitation for attention and memory in people with multiple sclerosis: a randomized controlled trial (CRAMMS) Open
Objective: To assess the clinical and cost-effectiveness of cognitive rehabilitation for attention and memory problems in people with multiple sclerosis. Design: Multicentre, pragmatic, randomized controlled trial. Setting: Community Parti…
View article: The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) Open
The Apache Point Observatory Galactic Evolution Experiment (APOGEE), one of the programs in the Sloan Digital Sky Survey III (SDSS-III), has now completed its systematic, homogeneous spectroscopic survey sampling all major populations of t…
View article: Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy
Chemical tagging with APOGEE: discovery of a large population of N-rich stars in the inner Galaxy Open
Formation of globular clusters (GCs), the Galactic bulge, or galaxy bulges in general is an important unsolved problem in Galactic astronomy. Homogeneous infrared observations of large samples of stars belonging to GCs and the Galactic bul…
View article: ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE
ASPCAP: THE APOGEE STELLAR PARAMETER AND CHEMICAL ABUNDANCES PIPELINE Open
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) has built the largest moderately high-resolution ( R ≈ 22,500) spectroscopic map of the stars across the Milky Way, and including dust-obscured areas. The APOGEE Stellar P…
View article: COMPANIONS TO APOGEE STARS. I. A MILKY WAY-SPANNING CATALOG OF STELLAR AND SUBSTELLAR COMPANION CANDIDATES AND THEIR DIVERSE HOSTS
COMPANIONS TO APOGEE STARS. I. A MILKY WAY-SPANNING CATALOG OF STELLAR AND SUBSTELLAR COMPANION CANDIDATES AND THEIR DIVERSE HOSTS Open
In its three years of operation, the Sloan Digital Sky Survey Apache Point Observatory Galactic Evolution Experiment (APOGEE-1) observed >14,000 stars with enough epochs over a sufficient temporal baseline for the fitting of Keplerian orbi…
View article: The SDSS-III APOGEE Radial Velocity Survey Of M Dwarfs. I. Description Of The Survey And Science Goals
The SDSS-III APOGEE Radial Velocity Survey Of M Dwarfs. I. Description Of The Survey And Science Goals Open
We are carrying out a large ancillary program with the Sloan Digital Sky Survey, SDSS-III, using the fiber-fed multi-object near-infrared APOGEE spectrograph, to obtain high-resolution H-band spectra of more than 1200 M dwarfs. These obser…