output
19932026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2023 · astro-ph.EPShow all

10 papers · 2 filters

astro-ph.EP2023★ 1 cited

Ejected Particles after Impact Splash on Mars: Aggregates and Aerodynamics

Tim Becker, Jens Teiser, Teresa Jardiel +6

Our earlier laboratory measurements showed that low-velocity sand impacts release fine <5 μm dust from a Martian simulant soil. This dust will become airborne in the Martian atmosp…

astro-ph.EP2023★ 15 cited

Euclid: Identification of asteroid streaks in simulated images using deep learning

M. Pöntinen, M. Granvik, A. A. Nucita +114

Up to 150000 asteroids will be visible in the images of the ESA Euclid space telescope, and the instruments of Euclid offer multiband visual to near-infrared photometry and slitles…

astro-ph.EP2023★ 34 cited

Company for the ultra-high density, ultra-short period sub-Earth GJ 367 b: discovery of two additional low-mass planets at 11.5 and 34 days

Elisa Goffo, Davide Gandolfi, Jo Ann Egger +38

GJ 367 is a bright (V 10.2) M1 V star that has been recently found to host a transiting ultra-short period sub-Earth on a 7.7 hr orbit. With the aim of improving the plan…

astro-ph.EP2023★ 35 cited

TOI-1130: A photodynamical analysis of a hot Jupiter in resonance with an inner low-mass planet

J. Korth, D. Gandolfi, J. Šubjak +59

The TOI-1130 is a known planetary system around a K-dwarf consisting of a gas giant planet, TOI-1130 c, on an 8.4-day orbit, accompanied by an inner Neptune-sized planet, TOI-1130…

astro-ph.EP2023★ 40 cited

Ponderings on the Possible Preponderance of Perpendicular Planets

Jared Siegel, Joshua Winn, Simon Albrecht

Misalignments between planetary orbits and the equatorial planes of their host stars are clues about the formation and evolution of planetary systems. Earlier work found evidence f…

astro-ph.EP2023★ 23 cited

Spectroscopic follow-up of Gaia exoplanet candidates: Impostor binary stars invade the Gaia DR3 astrometric exoplanet candidates

Marcus L. Marcussen, Simon H. Albrecht

In this paper we report on the follow-up of five potential exoplanets detected with Gaia astrometry and provide an overview of what is currently known about the nature of the entir…

astro-ph.EP2023★ 21 cited

The edge-on protoplanetary disk HH 48 NE I. Modeling the geometry and stellar parameters

J. A. Sturm, M. K. McClure, C. J. Law +11

Context. Observations of edge-on disks are an important tool for constraining general protoplanetary disk properties that cannot be determined in any other way. However, most radia…

astro-ph.EP2023★ 10 cited

Spectral Type and Geometric Albedo of (98943) 2001 CC21, the Hayabusa2# Mission Target

Jooyeon Geem, Masateru Ishiguro, Mikael Granvik +18

We conducted optical polarimetry and near-infrared spectroscopy of JAXA's Hayabusa2# mission target, (98943) 2001 CC21, in early 2023. Our new observations indicated that this aste…

astro-ph.EP2023★ 4 cited

The low density, hot Jupiter TOI-640 b is on a polar orbit

Emil Knudstrup, Simon H. Albrecht, Davide Gandolfi +17

TOI-640 b is a hot, puffy Jupiter with a mass of M and radius of R, orbiting a slightly evolved F-type star with a separation of…

astro-ph.EP2023★ 9 cited

An Earth-sized Planet around an M5 Dwarf Star at 22 pc

Teruyuki Hirano, Fei Dai, John H. Livingston +46

We report on the discovery of an Earth-sized transiting planet () in a day orbit around K2-415 (EPIC 211414619), an M5V star at 22 pc. The pla…