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16 papers · 1 filter
Investigating the Feasibility of an Impact-Induced Martian Dichotomy
Harry A. Ballantyne, Martin Jutzi, Gregor J. Golabek +4
A giant impact is commonly thought to explain the dramatic contrast in elevation and crustal thickness between the two hemispheres of Mars known as the "Martian Dichotomy". Initial…
Revisiting the atmosphere of the exoplanet 51 Eridani b with VLT/SPHERE
S. B. Brown-Sevilla, A. -L. Maire, P. Mollière +27
[Full abstract in the paper] We aim to better constrain the atmospheric properties of the directly imaged exoplanet 51~Eri~b by using a retrieval approach on higher signal-to-noise…
Chasing extreme planetary architectures: I- HD196885Ab, a super-Jupiter dancing with two stars?
G. Chauvin, M. Videla, H. Beust +21
Planet(s) in binaries are unique architectures for testing predictions of planetary formation and evolution theories in very hostile environments. We used the IRDIS dual-band image…
Lithium, masses, and kinematics of young Galactic dwarf and giant stars with extreme [/Fe] ratios
S. Borisov, N. Prantzos, C. Charbonnel
Recent spectroscopic explorations of large Galactic stellar samples stars have revealed the existence of red giants with [/Fe] ratios that are anomalously high, given their rela…
Asteroid spin-states of a 4 Gyr collisional family
D. Athanasopoulos, J. Hanus, C. Avdellidou +29
Families of asteroids generated by the collisional fragmentation of a common parent body have been identified using clustering methods of asteroids in their proper orbital element…
Proton Irradiation of SiPM arrays for POLAR-2
Slawomir Mianowski, Nicolas De Angelis, Johannes Hulsman +12
POLAR-2 is a space-borne polarimeter, built to investigate the polarization of Gamma-Ray Bursts and help elucidate their mechanisms. The instrument is targeted for launch in 2024 o…