activity
20152021
most citedStellar Spectroscopy in the Near-infrared with a Laser Frequency Comb

153 citations · 492 across the 12 of their papers we have counts for

collaborators

16 papers

astro-ph.EP202125 cited

TOI-532b: The Habitable-zone Planet Finder confirms a Large Super Neptune in the Neptune Desert orbiting a metal-rich M dwarf host

Shubham Kanodia, Gudmundur Stefansson, Caleb I. Canas +30

We confirm the planetary nature of TOI-532b, using a combination of precise near-infrared radial velocities with the Habitable-zone Planet Finder, TESS light curves, ground based p…

astro-ph.EP2021

Stellar Activity Manifesting at a One Year Alias Explains Barnard b as a False Positive

Jack Lubin, Paul Robertson, Gudmundur Stefansson +17

Barnard's star is among the most studied stars given its proximity to the Sun. It is often considered Radial Velocity (RV) standard for fully convective stars due to its RV s…

astro-ph.IM2021

Broadband stability of the Habitable Zone Planet Finder Fabry-Pérot etalon calibration system: evidence for chromatic variation

Ryan C Terrien, Joe P Ninan, Scott A Diddams +11

The comb-like spectrum of a white light-illuminated Fabry-Pérot etalon can serve as a cost-effective and stable reference for precise Doppler measurements. Understanding the stabil…

astro-ph.EP2021

A Harsh Test of Far-Field Scrambling with the Habitable Zone Planet Finder and the Hobby Eberly Telescope

Shubham Kanodia, Samuel Halverson, Joe P. Ninan +18

The Habitable zone Planet Finder (HPF) is a fiber fed precise radial velocity spectrograph at the 10 m Hobby Eberly Telescope (HET). Due to its fixed altitude design, the HET pupil…

astro-ph.EP2021

The Habitable-zone Planet Finder Detects a Terrestrial-mass Planet Candidate Closely Orbiting Gliese 1151: The Likely Source of Coherent Low-frequency Radio Emission from an Inactive Star

Suvrath Mahadevan, Guðmundur Stefánsson, Paul Robertson +17

The coherent low-frequency radio emission detected by LOFAR from Gliese 1151, a quiescent M4.5 dwarf star, has radio emission properties consistent with theoretical expectations of…

astro-ph.EP202074 cited

The Habitable-zone Planet Finder Reveals A High Mass and a Low Obliquity for the Young Neptune K2-25b

Gudmundur Stefansson, Suvrath Mahadevan, Marissa Maney +27

Using radial-velocity data from the Habitable-zone Planet Finder, we have measured the mass of the Neptune-sized planet K2-25b, as well as the obliquity of its M4.5-dwarf host star…