583 citations · 4.2k across the 54 of their papers we have counts for
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Applying the metallicity-dependent binary fraction to double white dwarf formation: Implications for LISA
Sarah Thiele, Katelyn Breivik, Robyn E. Sanderson +1
Short-period double white dwarf (DWD) binaries will be the most prolific source of gravitational waves (GWs) for the Laser Interferometer Space Antenna (LISA). DWDs with GW frequen…
Mapping stellar surfaces III: An Efficient, Scalable, and Open-Source Doppler Imaging Model
Rodrigo Luger, Megan Bedell, Daniel Foreman-Mackey +3
The study of stellar surfaces can reveal information about the chemical composition, interior structure, and magnetic properties of stars. It is also critical to the detection and…
An Aligned Orbit for the Young Planet V1298 Tau b
Marshall C. Johnson, Trevor J. David, Erik A. Petigura +22
The alignment of planetary orbits with respect to the stellar rotation preserves information on their dynamical histories. Measuring this angle for young planets help illuminate th…
Efficient and precise transit light curves for rapidly-rotating, oblate stars
Shashank Dholakia, Rodrigo Luger, Shishir Dholakia
We derive solutions to transit light curves of exoplanets orbiting rapidly-rotating stars. These stars exhibit significant oblateness and gravity darkening, a phenomenon where the…
The K2 Galactic Archaeology Program Data Release 3: Age-abundance patterns in C1-C8 and C10-C18
Joel C. Zinn, Dennis Stello, Yvonne Elsworth +28
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 radius and mass coefficients,…
H-alpha and Ca II Infrared Triplet Variations During a Transit of the 23 Myr Planet V1298 Tau c
Adina D. Feinstein, Benjamin T. Montet, Marshall C. Johnson +5
Young transiting exoplanets (< 100 Myr) provide crucial insight into atmospheric evolution via photoevaporation. However, transmission spectroscopy measurements to determine atmosp…
exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series
Daniel Foreman-Mackey, Rodrigo Luger, Eric Agol +13
"exoplanet" is a toolkit for probabilistic modeling of astronomical time series data, with a focus on observations of exoplanets, using PyMC3 (Salvatier et al., 2016). PyMC3 is a f…
Linearized Field Deblending: PSF Photometry for Impatient Astronomers
Christina Hedges, Rodrigo Luger, Jorge Martinez Palomera +2
NASA's Kepler, K2 and TESS missions employ Simple Aperture Photometry (SAP) to derive time-series photometry, where an aperture is estimated for each star, and pixels containing ea…
Analytic Light Curves in Reflected Light: Phase Curves, Occultations, and Non-Lambertian Scattering for Spherical Planets and Moons
Rodrigo Luger, Eric Agol, Fran Bartolić +1
We derive efficient, closed form, differentiable, and numerically stable solutions for the flux measured from a spherical planet or moon seen in reflected light, either in or out o…
Occultation mapping of Io's surface in the near-infrared I: Inferring static maps
Fran Bartolić, Rodrigo Luger, Daniel Foreman-Mackey +2
Jupiter's moon Io is the most volcanically active body in the Solar System with hundreds of active volcanoes varying in intensity on different timescales. Io has been observed duri…
starry_process: Interpretable Gaussian processes for stellar light curves
Rodrigo Luger, Daniel Foreman-Mackey, Christina Hedges
In this note we present the starry_process code, which implements an interpretable Gaussian process (GP) for modeling variability in stellar light curves. As dark starspots rotate…
Mapping stellar surfaces II: An interpretable Gaussian process model for light curves
Rodrigo Luger, Daniel Foreman-Mackey, Christina Hedges
The use of Gaussian processes (GPs) as models for astronomical time series datasets has recently become almost ubiquitous, given their ease of use and flexibility. GPs excel in par…
Mapping stellar surfaces I: Degeneracies in the rotational light curve problem
Rodrigo Luger, Daniel Foreman-Mackey, Christina Hedges +1
Thanks to missions like Kepler and TESS, we now have access to tens of thousands of high precision, fast cadence, and long baseline stellar photometric observations. In principle,…
Multi-Wavelength Photometry Derived from Monochromatic Kepler Data
Christina Hedges, Rodrigo Luger, Jessie Dotson +2
The Kepler mission has provided a wealth of data, revealing new insights in time-domain astronomy. However, Kepler's single band-pass has limited studies to a single wavelength. In…