activity
20222025
most citedThe TESS-Keck Survey XX: 15 New TESS Planets and a Uniform RV Analysis of all Survey Targets

53 citations · 138 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.SR2025★ 1 cited

Time-resolved p-mode oscillations for subgiant HD 142091 with NEID at WIYN

Jacob K. Luhn, Paul Robertson, Samuel Halverson +22

Detections of Earth-analog planets in radial velocity observations are limited by stellar astrophysical variability occurring on a variety of timescales. Current state-of-the-art m…

astro-ph.IM2024★ 6 cited

Disentangling transients and their host galaxies with Scarlet2: A framework to forward model multi-epoch imaging

Charlotte Ward, Peter Melchior, Matt L. Sampson +6

Many science cases for wide-field time-domain surveys rely on accurate identification and characterization of the galaxies hosting transient and variable objects. In the era of the…

astro-ph.SR2024★ 7 cited

Quiet Please: Detrending Radial Velocity Variations from Stellar Activity with a Physically Motivated Spot Model

Jared C. Siegel, Samuel Halverson, Jacob K. Luhn +15

For solar-type stars, spots and their associated magnetic regions induce radial velocity perturbations through the Doppler rotation signal and the suppression of convective blueshi…

astro-ph.EP2024★ 53 cited

The TESS-Keck Survey XX: 15 New TESS Planets and a Uniform RV Analysis of all Survey Targets

Alex S. Polanski, Jack Lubin, Corey beard +69

The Transiting Exoplanet Survey Satellite (TESS) has discovered hundreds of new worlds, with TESS planet candidates now outnumbering the total number of confirmed planets from $\te…

astro-ph.EP2024★ 13 cited

The death of Vulcan: NEID reveals the planet candidate orbiting HD 26965 is stellar activity

Abigail Burrows, Samuel Halverson, Jared C. Siegel +17

We revisit the long-studied radial velocity (RV) target HD26965 using recent observations from the NASA-NSF 'NEID' precision Doppler facility. Leveraging a suite of classical activ…

astro-ph.GA2024★ 4 cited

UNCOVER NIRSpec/PRISM Spectroscopy Unveils Evidence of Early Core Formation in a Massive, Centrally Dusty Quiescent Galaxy at

David J. Setton, Gourav Khullar, Tim B. Miller +28

We report the spectroscopic confirmation of a massive (), HST-dark () quiescent galaxy at…

astro-ph.EP2023★ 40 cited

Ponderings on the Possible Preponderance of Perpendicular Planets

Jared Siegel, Joshua Winn, Simon Albrecht

Misalignments between planetary orbits and the equatorial planes of their host stars are clues about the formation and evolution of planetary systems. Earlier work found evidence f…

astro-ph.HE2022★ 1 cited

Investigating the Lower Mass Gap with Low Mass X-ray Binary Population Synthesis

Jared C. Siegel, Ilia Kiato, Vicky Kalogera +14

Mass measurements from low-mass black hole X-ray binaries (LMXBs) and radio pulsars have been used to identify a gap between the most massive neutron stars (NSs) and the least mass…

astro-ph.EP2022★ 2 cited

Mass Upper Bounds for Over 50 Kepler Planets Using Low-S/N Transit Timing Variations

Jared C. Siegel, Leslie A. Rogers

Prospects for expanding the available mass measurements of the Kepler sample are limited. Planet masses have typically been inferred via radial velocity (RV) measurements of the ho…

astro-ph.SR2022★ 11 cited

Into the Depths: a new activity metric for high-precision radial velocity measurements based on line depth variations

Jared C. Siegel, Ryan A. Rubenzahl, Samuel Halverson +1

The discovery and characterization of extrasolar planets using radial velocity (RV) measurements is limited by noise sources from the surfaces of host stars. Current techniques to…