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- Centre National de la Recherche ScientifiqueFR90 papers
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107 papers · 1 filter
Direct Imaging Discovery of Giant Exoplanet Pictoris d: A Decade-Long Game of Hide-and-Seek
Ben J. Sutlieff, Markus J. Bonse, Valentin Christiaens +94
We report the direct imaging discovery of a third exoplanet in the Pictoris system. We detect Pictoris d ( Pic d) in non-coronagraphic observations obtained with VLT/ERI…
How Late Solid Enrichment Shapes Atmospheric Abundances in Giant Planets
Michael L. Balogh, Yuvan Sooryakumar, Sachen Gombu +4
Atmospheric abundance measurements of giant exoplanets are increasingly used to infer their formation histories, motivating upcoming population studies with facilities such as the…
Shock wave formation in the thermosphere by an earthgrazing fireball: Empirical evidence for volatile-enhanced hydrodynamic shielding
Elizabeth A. Silber, Denis Vida, Miro Ronac Giannone +7
Hydrodynamic shielding is a theoretically well-established but observationally elusive and experimentally difficult-to-replicate phenomenon with implications that extend far beyond…
Exoplanet Search and Characterization with the Proposed POET Canadian Space Mission
S. Metchev, J. Rowe, P. Miles-Páez +20
The Photometric Observations of Exoplanet Transits (POET) is a proposed micro-satellite mission dedicated to the characterization and discovery of transiting exoplanets. POET has b…
Multi-Sensor Trajectory Reconstruction of the 24 April 2025 Alaska Fireball and Implications for Planetary Defense
L. T. Scamfer, E. A. Silber, M. D. Fries +6
On 24 April 2025 at 18:30:57 UTC, a bright daytime fireball over Southcentral Alaska was detected by 37 seismic stations, 16 single infrasound sensors, and four infrasound arrays,…
Predictions of Imminent Earth Impactors Discovered by LSST
Ian Chow, Mario Jurić, R. Lynne Jones +5
Imminent impactors are natural bodies discovered in space before impacting the Earth. They provide a rare opportunity to characterize individual near-Earth objects (NEOs) in great…