activity
19962022
most citedDiscovery of a Cool Planet of 5.5 Earth Masses Through Gravitational Microlensing

596 citations · 4.6k across the 68 of their papers we have counts for

collaborators

69 papers

astro-ph.SR2022★ 5 cited

A spectroscopic quadruple as a possible progenitor of sub-Chandrasekhar Type Ia supernovae

T. Merle, A. S. Hamers, S. Van Eck +13

Binaries have received much attention as possible progenitors of Type Ia supernova (SNIa) explosions, but long-term gravitational effects in tight triple or quadruple systems could…

astro-ph.SR2022

An Isolated Stellar-Mass Black Hole Detected Through Astrometric Microlensing

Kailash C. Sahu, Jay Anderson, Stefano Casertano +90

We report the first unambiguous detection and mass measurement of an isolated stellar-mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise astrometry…

astro-ph.SR2021★ 35 cited

TESS Cycle 1 observations of roAp stars with 2-min cadence data

D. L. Holdsworth, M. S. Cunha, D. W. Kurtz +41

We present the results of a systematic search for new rapidly oscillating Ap (roAp) stars using the 2-min cadence data collected by the Transiting Exoplanet Survey Satellite (TESS)…

astro-ph.EP2021★ 5 cited

A photospheric and chromospheric activity analysis of the quiescent retrograde-planet host Octantis A

David Ramm, Paul Robertson, Sabine Reffert +4

The single-lined spectroscopic binary Octantis provided evidence of the first conjectured circumstellar planet demanding an orbit retrograde to the stellar orbits. The planet-l…

astro-ph.EP2021★ 11 cited

HD 76920b pinned down: a detailed analysis of the most eccentric planetary system around an evolved star

C. Bergmann, M. I. Jones, J. Zhao +9

We present 63 new multi-site radial velocity measurements of the K1III giant HD 76920, which was recently reported to host the most eccentric planet known to orbit an evolved star.…

astro-ph.HE2020

Direct evidence for shock-powered optical emission in a nova

Elias Aydi, Kirill V. Sokolovsky, Laura Chomiuk +39

Classical novae are thermonuclear explosions that occur on the surfaces of white dwarf stars in interacting binary systems (Bode & Evans 2008). It has long been thought that the lu…