Work

A Spiral Structure in the Inner Oort Cloud

Year: 2025

Type: article

Abstract: As the Galactic tide acts to decouple bodies from the scattered disk it creates a spiral structure in physical space that is roughly 15,000 au in length. The spiral is long-lived and persists in the inner Oort cloud to the present time. Here we discuss dynamics underlying the Oort spiral and (feeble) prospects for its observational detection.

Source: The Astrophysical Journal

DOI: 10.3847/1538-4357/adbf9b

Authors: David Nesvorný, Luke Dones, David Vokrouhlický, Hal F. Levison, Cristian Beaugé, Jacqueline Faherty, Carter Emmart, Jon P. Parker

Institutions: Southwest Research Institute, Charles University, Universidad Nacional de Córdoba, Instituto de Astronomía Teórica y Experimental, Argentine National Observatory, American Museum of Natural History

Language: English

Topic: Astro and Planetary Science

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $4,499

OpenAlex ID: W4409275446

FWCI: 0.906

Cites: 33

Cited by: 2

Related to: 10