activity
20152026
most citedDetection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole

947 citations · 2.6k across the 80 of their papers we have counts for

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7 papers · 1 filter

astro-ph.EP2025★ 2 cited

HD 143006: Interferometric Confirmation of Misaligned Protoplanetary Disc with CHARA/MIRCX and VLTI/PIONIER

I. Codron, S. Kraus, J. D. Monnier +7

The outer regions of the protoplanetary disc surrounding the T Tauri star HD 143006 show rings, dust asymmetries and shadows. Whilst rings and dust asymmetries can arise from compa…

astro-ph.EP2024

Vortex Fiber Nulling for Exoplanet Observations: First Direct Detection of M Dwarf Companions around HIP 21543, HIP 94666, and HIP 50319

Daniel Echeverri, Jerry W. Xuan, John D. Monnier +35

Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared (m) VFN demonstrat…

astro-ph.EP2023

AC Her: Evidence of the first polar circumbinary planet

Rebecca G. Martin, Stephen H. Lubow, David Vallet +2

We examine the geometry of the post-asymptotic giant branch (AGB) star binary AC Her and its circumbinary disk. We show that the observations describe a binary orbit that is perpen…

astro-ph.EP2023★ 8 cited

Three-dimensional orbit of AC Her determined: Binary-induced truncation cannot explain the large cavity in this post-AGB transition disk

Narsireddy Anugu, Jacques Kluska, Tyler Gardner +17

Some evolved binaries, namely post-asymptotic giant branch binaries, are surrounded by stable and massive circumbinary disks similar to protoplanetary disks found around young star…

astro-ph.EP2022★ 47 cited

A detailed analysis of the Gl 486 planetary system

J. A. Caballero, E. Gonzalez-Alvarez, M. Brady +64

The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R_Terra and 3.0 M_Terra that…

astro-ph.EP2021★ 20 cited

EXPRES. III. Revealing the Stellar Activity Radial Velocity Signature of Eridani with Photometry and Interferometry

Rachael M. Roettenbacher, Samuel H. C. Cabot, Debra A. Fischer +20

The distortions of absorption line profiles caused by photospheric brightness variations on the surfaces of cool, main-sequence stars can mimic or overwhelm radial velocity (RV) sh…

astro-ph.EP2019★ 155 cited

First direct detection of an exoplanet by optical interferometry; Astrometry and K-band spectroscopy of HR8799 e

S. Lacour, M. Nowak, J. Wang +85

To date, infrared interferometry at best achieved contrast ratios of a few times on bright targets. GRAVITY, with its dual-field mode, is now capable of high contrast obs…