activity
20042025
most citedSB9: The Ninth Catalogue of Spectroscopic Binary Orbits

655 citations · 1.3k across the 35 of their papers we have counts for

collaborators

35 papers

astro-ph.SR2025

Binary Parameters for the Recurrent Nova T Coronae Borealis

Kenneth H. Hinkle, Pranav Nagarajan, Francis C. Fekel +3

T CrB is among the brightest novae. It is recurrent with outbursts happening approximately every 80 years. The next outburst is imminent, expected in 2025. The T CrB binary consist…

astro-ph.SR2024★ 2 cited

On its way to the neutron star-white dwarf binary graveyard, IGR J16194-2810, a first ascent M giant X-ray binary

K. H. Hinkle, F. C. Fekel, O. Straniero +5

A single-lined spectroscopic orbit for the M giant in the X-ray binary IGR J16194-2810 is determined from a time-series of optical spectra. The spectroscopic orbital period of 192.…

astro-ph.SR2022★ 6 cited

Visual Orbits of Spectroscopic Binaries with the CHARA Array. IV. HD 61859, HD 89822, HD 109510, and HD 191692

Kathryn V. Lester, Gail H. Schaefer, Francis C. Fekel +18

We present the visual orbits of four spectroscopic binary stars, HD 61859, HD 89822, HD 109510, and HD 191692, using long baseline interferometry with the CHARA Array. We also obta…

astro-ph.SR2022★ 16 cited

ARMADA II: Further Detections of Inner Companions to Intermediate Mass Binaries with Micro-Arcsecond Astrometry at CHARA and VLTI

Tyler Gardner, John D. Monnier, Francis C. Fekel +18

We started a survey with CHARA/MIRC-X and VLTI/GRAVITY to search for low mass companions orbiting individual components of intermediate mass binary systems. With the incredible pre…

astro-ph.SR2021

Establishing Oph as a Prototype Rotator: Precision Orbit with new Keck, CHARA, and RV Observations

Tyler Gardner, John D. Monnier, Francis C. Fekel +11

Alpha Ophiuchi (Rasalhague) is a nearby rapidly rotating A5IV star which has been imaged by infrared interferometry. Oph is also part of a known binary system, with a companion…

astro-ph.SR2021★ 24 cited

Observations with the Differential Speckle Survey Instrument. X. Preliminary Orbits of K Dwarf Binaries and Other Stars

Elliott P. Horch, Kyle G. Broderick, Dana I. Casetti-Dinescu +8

This paper details speckle observations of binary stars taken at the Lowell Discovery Telescope, the WIYN Telescope, and the Gemini telescopes between 2016 January and 2019 Septemb…