Search Results - "Zinn, Joel C."
-
1
Confirmation of the Gaia DR2 Parallax Zero-point Offset Using Asteroseismology and Spectroscopy in the Kepler Field
Published in The Astrophysical journal (20-06-2019)“…We present an independent confirmation of the zero-point offset of Gaia Data Release 2 parallaxes using asteroseismic data of evolved stars in the Kepler…”
Get full text
Journal Article -
2
Further Evidence of Modified Spin-down in Sun-like Stars: Pileups in the Temperature–Period Distribution
Published in The Astrophysical journal (01-07-2022)“…Abstract We combine stellar surface rotation periods determined from NASA’s Kepler mission with spectroscopic temperatures to demonstrate the existence of…”
Get full text
Journal Article -
3
The APO-K2 Catalog. I. ∼7500 Red Giants with Fundamental Stellar Parameters from APOGEE DR17 Spectroscopy and K2-GAP Asteroseismology
Published in The Astronomical journal (01-02-2024)“…Abstract We present a catalog of fundamental stellar properties for ∼7500 evolved stars, including stellar radii and masses, determined from the combination of…”
Get full text
Journal Article -
4
The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way
Published in The Astronomical journal (01-05-2024)“…Abstract We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology…”
Get full text
Journal Article -
5
A neural population model incorporating dopaminergic neurotransmission during complex voluntary behaviors
Published in PLoS computational biology (01-11-2014)“…Assessing brain activity during complex voluntary motor behaviors that require the recruitment of multiple neural sites is a field of active research. Our…”
Get full text
Journal Article -
6
Detecting Solar-like Oscillations in Red Giants with Deep Learning
Published in The Astrophysical journal (20-05-2018)“…Time-resolved photometry of tens of thousands of red giant stars from space missions like Kepler and K2 has created the need for automated asteroseismic…”
Get full text
Journal Article -
7
Testing the Radius Scaling Relation with Gaia DR2 in the Kepler Field
Published in The Astrophysical journal (10-11-2019)“…We compare radii based on Gaia parallaxes to radii based on asteroseismic scaling relations for ∼300 dwarfs and subgiants and ∼3600 first-ascent giants from…”
Get full text
Journal Article -
8
The effect of the adiabatic assumption on asteroseismic scaling relations for luminous red giants
Published in Monthly notices of the Royal Astronomical Society (11-09-2023)“…ABSTRACT Although stellar radii from asteroseismic scaling relations agree at the per cent level with independent estimates for main sequence and most…”
Get full text
Journal Article -
9
A “Quick Look” at All-sky Galactic Archeology with TESS: 158,000 Oscillating Red Giants from the MIT Quick-look Pipeline
Published in The Astrophysical journal (01-10-2021)“…Abstract We present the first near all-sky yield of oscillating red giants from the prime mission data of NASA’s Transiting Exoplanet Survey Satellite (TESS)…”
Get full text
Journal Article -
10
The Bayesian Asteroseismology Data Modeling Pipeline and Its Application to K2 Data
Published in The Astrophysical journal (20-10-2019)“…We present the Bayesian Asteroseismology data Modeling (BAM) pipeline, an automated asteroseismology pipeline that returns global oscillation parameters and…”
Get full text
Journal Article -
11
Vetting asteroseismic Δν measurements using neural networks
Published in Monthly notices of the Royal Astronomical Society (01-04-2022)“…ABSTRACT Precise asteroseismic parameters can be used to quickly estimate radius and mass distributions for large samples of stars. A number of automated…”
Get full text
Journal Article -
12
Mass Matters: No Evidence for Ubiquitous Lithium Production in Low-mass Clump Giants
Published in The Astrophysical journal (01-07-2022)“…Abstract Known sources of lithium (Li) in the universe include the Big Bang, novae, asymptotic giant branch stars, and cosmic-ray spallation. During their…”
Get full text
Journal Article -
13
The K2 Galactic Archaeology Program: Overview, target selection, and survey properties
Published in Monthly notices of the Royal Astronomical Society (14-10-2022)“…ABSTRACT K2 was a community-driven NASA mission where all targets were proposed through guest observer programmes. Here we provide an overview of one of the…”
Get full text
Journal Article -
14
Evidence for Spatially Correlated Gaia Parallax Errors in the Kepler Field
Published in The Astrophysical journal (01-08-2017)“…We present evidence for a spatially dependent systematic error in the first data release of Gaia parallaxes based on comparisons to asteroseismic parallaxes in…”
Get full text
Journal Article -
15
Similarities behind the high- and low-α disc: small intrinsic abundance scatter and migrating stars
Published in Monthly notices of the Royal Astronomical Society (30-03-2022)“…ABSTRACT The detailed age-chemical abundance relations of stars measure time-dependent chemical evolution. These trends offer strong empirical constraints on…”
Get full text
Journal Article -
16
The K2-HERMES Survey: age and metallicity of the thick disc
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT Asteroseismology is a promising tool to study Galactic structure and evolution because it can probe the ages of stars. Earlier attempts comparing…”
Get full text
Journal Article -
17
Age-dating Red Giant Stars Associated with Galactic Disk and Halo Substructures
Published in The Astrophysical journal (01-08-2021)“…Abstract The vast majority of Milky Way stellar halo stars were likely accreted from a small number (≲3) of relatively large dwarf galaxy accretion events…”
Get full text
Journal Article -
18
The K2 Galactic Archaeology Program Data Release 3: Age-abundance Patterns in C1–C8 and C10–C18
Published in The Astrophysical journal (01-02-2022)“…Abstract We present the third and final data release of the K2 Galactic Archaeology Program (K2 GAP) for Campaigns C1–C8 and C10–C18. We provide asteroseismic…”
Get full text
Journal Article -
19
Fundamental relations for the velocity dispersion of stars in the Milky Way
Published in Monthly notices of the Royal Astronomical Society (01-09-2021)“…ABSTRACT We explore the fundamental relations governing the radial and vertical velocity dispersions of stars in the Milky Way, from combined studies of…”
Get full text
Journal Article -
20
A prescription for the asteroseismic surface correction
Published in Monthly notices of the Royal Astronomical Society (23-05-2023)“…ABSTRACT In asteroseismology, the surface effect refers to a disparity between the observed and the modelled frequencies in stars with solar-like oscillations…”
Get full text
Journal Article