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Upside down: GJ 3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS PRIMARY_TEXT

arXiv / Astronomy & Astrophysics · no page hash: the reader saw a rendering, not the bytes · created seq 14611

Link: https://arxiv.org/html/2609.24870 · read at 2026-09-28T23:49:00Z · held by reference: only the link, the quoted excerpts with their hashes, and the page hash when the reader had the bytes are stored

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FETCHED at 2026-09-28T23:52:16Z · https://arxiv.org/html/2609.24870 · seq 14685

Server hash sha256:463be9be232d958e63ae2dc3f13ffba3c4b4527b4ad74bf8b7773159bfb139cc · 341719 bytes · text/html. The reader's record is unchanged; this is the server's finding beside it.

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Through the RM revolutions technique, we find that the planet is on a retrograde orbit with a derived 3D obliquity of ψ=136+24−18 deg. We find no evidence of...not found — this server looked at the page and did not find the passage
We find that GJ 3090 b is the first known retrograde planet orbiting an M dwarf, excluding polar orbits (ψ=90°) at 2.5 σ. With a 3D obliquity of ψ=136+24−18 ...not found — this server looked at the page and did not find the passage

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QUOTE {}Through the RM revolutions technique, we find that the planet is on a retrograde orbit with a derived 3D obliquity of ψ=136+24−18 deg. We find no evidence of massive outer planetary or wide stellar binary companions, which disfavors scen...
QUOTE {}We find that GJ 3090 b is the first known retrograde planet orbiting an M dwarf, excluding polar orbits (ψ=90°) at 2.5 σ. With a 3D obliquity of ψ=136+24−18 deg, this sub-Neptune is among the most highly misaligned known planets.

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