activity
20202026
most citedSpeckle Observations of TESS Exoplanet Host Stars. II. Stellar Companions at 1-1000 AU and Implications for Small Planet Detection

89 citations · 331 across the 26 of their papers we have counts for

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Showing 2023Show all

5 papers · 1 filter

astro-ph.GA2023★ 17 cited

Probing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disk

Anya Dovgal, Kim A. Venn, Federico Sestito +31

Pristine_183.6849+04.8619 (P1836849) is an extremely metal-poor ([Fe/H]) star on a prograde orbit confined to the Galactic disk. Such stars are rare and may have their…

astro-ph.HE2023★ 1 cited

Limits on Optical Counterparts to the Repeating FRB 20180916B from High-speed Imaging with Gemini-N/'Alopeke

Charles D. Kilpatrick, Nicolas Tejos, J. Xavier Prochaska +6

We report on contemporaneous optical observations at ~10 ms timescales from the fast radio burst (FRB) 20180916B of two repeat bursts (FRB 20201023, FRB 20220908) taken with the 'A…

astro-ph.SR2023

The POKEMON Speckle Survey of Nearby M Dwarfs. II. Observations of 1125 Targets

Catherine A. Clark, Gerard T. van Belle, Elliott P. Horch +7

Stellar multiplicity is correlated with many stellar properties, yet multiplicity measurements have proven difficult for the M dwarfs -- the most common type of star in our galaxy…

astro-ph.SR2023

SPLUS J142445.34-254247.1: An R-Process Enhanced, Actinide-Boost, Extremely Metal-Poor star observed with GHOST

Vinicius M. Placco, Felipe Almeida-Fernandes, Erika M. Holmbeck +33

We report on the chemo-dynamical analysis of SPLUS J142445.34-254247.1, an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process. This sta…

astro-ph.EP2023★ 57 cited

The two rings of (50000) Quaoar

C. L. Pereira, B. Sicardy, B. E. Morgado +66

Quaoar is a classical Trans-Neptunian Object (TNO) with an area equivalent diameter of 1,100 km and an orbital semi-major axis of 43.3 astronomical units. Based on stellar occultat…