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Articles by Gudmundur Stefansson

Jitter Across 15 Years: Leveraging Precise Photometry from Kepler and TESS to Extract Exoplanets from Radial Velocity Time Series
15 December 2024 by Corey Beard and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Searching for GEMS: TOI-5688 A b, a low-density giant orbiting a high-metallicity early M-dwarf
6 December 2024 by Varghese Reji and others
Earth and Planetary Astrophysics
Searching for GEMS: Two Super-Jupiters around M-dwarfs -- Signatures of Instability or Accretion?
12 November 2024 by Andrew Hotnisky and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Origins of Super Jupiters: TOI-2145b Has a Moderately Eccentric and Nearly Aligned Orbit
2 November 2024 by Jiayin Dong and others
Earth and Planetary Astrophysics
Gaia-4b and 5b: Radial Velocity Confirmation of Gaia Astrometric Orbital Solutions Reveal a Massive Planet and a Brown Dwarf Orbiting Low-mass Stars
8 October 2024 by Gudmundur Stefansson and others
Earth and Planetary Astrophysics, Instrumentation and Methods for Astrophysics
A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations
4 October 2024 by Kento Masuda and others
Earth and Planetary Astrophysics
The HD 191939 Exoplanet System is Well-Aligned and Flat
10 September 2024 by Jack Lubin and others
Earth and Planetary Astrophysics
TOI-3568 b: a super-Neptune in the sub-Jovian desert
5 September 2024 by Eder Martioli and others at LogoASTRON
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Earths within Reach: Evaluation of Strategies for Mitigating Solar Variability using 3.5 years of NEID Sun-as-a-Star Observations
23 August 2024 by Eric Ford and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
A white dwarf binary showing sporadic radio pulses at the orbital period
21 August 2024 by I. Ruiter and others
High Energy Astrophysical Phenomena, Solar and Stellar Astrophysics
Utilizing Photometry from Multiple Sources to Mitigate Stellar Variability in Precise Radial Velocities: A Case Study of Kepler-21
6 August 2024 by Corey Beard and others
Earth and Planetary Astrophysics
TESS Giants Transiting Giants. VI. Newly Discovered Hot Jupiters Provide Evidence for Efficient Obliquity Damping after the Main Sequence
31 July 2024 by Nicholas Saunders and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
TOI-2015b: A Warm Neptune with Transit Timing Variations Orbiting an Active mid M Dwarf
9 May 2024 by Sinclaire Jones and others
Earth and Planetary Astrophysics
TOI-1670 c, a 40-day Orbital Period Warm Jupiter in a Compact System, is Well-aligned
27 November 2023 by Jack Lubin and others at LogoASTRON
Earth and Planetary Astrophysics
Stable fiber-illumination for extremely precise radial velocities with NEID
16 August 2023 by Shubham Kanodia and others
Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics
Measuring the Temperature of Starspots from Multi-Filter Photometry
29 July 2023 by Maria Schutte and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
An In-Depth Look at TOI-3884b: a Super-Neptune Transiting a M4 Dwarf with Persistent Star Spot Crossings
17 May 2023 by Jessica Libby-Roberts and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
A High-Eccentricity Warm Jupiter Orbiting TOI-4127
25 March 2023 by Arvind Gupta and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
An extreme test case for planet formation: a close-in Neptune orbiting an ultracool star
23 March 2023 by Gudmundur Stefansson and others
Earth and Planetary Astrophysics
NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity
24 February 2023 by Robert Frazier and others
Earth and Planetary Astrophysics
GJ 806 (TOI-4481): A bright nearby multi-planetary system with a transiting hot, low-density super-Earth
17 January 2023 by Enric Palle and others
Earth and Planetary Astrophysics
TOI-561 b: A Low Density Ultra-Short Period "Rocky" Planet around a Metal-Poor Star
19 December 2022 by Casey Brinkman and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
MAROON-X: The first two years of EPRVs from Gemini North
12 October 2022 by Andreas Seifahrt and others
Instrumentation and Methods for Astrophysics, Earth and Planetary Astrophysics
Real-time exposure control and instrument operation with the NEID spectrograph GUI
2 October 2022 by Arvind Gupta and others
Instrumentation and Methods for Astrophysics
Detection of p-mode Oscillations in HD 35833 with NEID and TESS
2 October 2022 by Arvind Gupta and others
Solar and Stellar Astrophysics
TOI-5205b: A Jupiter transiting an M dwarf near the Convective Boundary
23 September 2022 by Shubham Kanodia and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
A Tendency Toward Alignment in Single-Star Warm Jupiter Systems
13 July 2022 by Malena Rice and others at LogoASTRON
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
A detailed analysis of the Gl 486 planetary system
20 June 2022 by José Antonio Caballero and others
Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
Modeling Stellar Surface Features on Subgiant Star with an M-dwarf Companion
17 May 2022 by Maria Schutte and others
Solar and Stellar Astrophysics, Earth and Planetary Astrophysics
The Warm Neptune GJ 3470b has a Polar Orbit
1 May 2022 by Gudmundur Stefansson and others
Earth and Planetary Astrophysics
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