A Spiral Structure in the Inner Oort Cloud
2025/02/16 by David Nesvorny, Nesvorny, David, Luke Dones +13 · 8 voices
Physics and Astronomy · #astro-ph.EP #astro-ph.GA
paper · pdf · doi:10.48550/arxiv.2502.11252
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.
Citations
Discussions
- Far beyond Pluto, trillions of cold comets circle the sun in a lazy swarm called the Oort Cloud. A new simulation indicates what this comet-cloud looks like: a loose spiral that resembles a miniature [bsky, 170 points, 7 comments]
- Here's the pre-print paper for this work. This work is also by some of my colleagues. This was unintentional this week! It's allways interesting to see what the news picks up from the published papers [bsky, 5 points, 0 comments]
- So much yet to discover! "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- [bsky, 5 points, 0 comments]
- Today on the #arXiv : Nesvorny et al. 2025, "A Spiral Structure in the Inner Oort Cloud" - arxiv.org/abs/2502.11252 Presenting an interesting idea about the arrangement of objects in the Oort Cloud, [bsky, 3 points, 0 comments]
- Mucho más allá de #Plutón (a miles de unidades astronómicas), billones de cometas rodean el Sol en un enjambre llamado Nube de Oort. Una nueva simulación indica cómo se ve esta nube de cometas: una es [bsky, 2 points, 0 comments]
- Today on the # arXiv : Nesvorny et al. 2025, "A Spiral Structure in the Inner Oort Cloud" - https:// arxiv.org/abs/2502.11252 Presenting an interesting idea about the arrangement of objects in the Oor [mastodon, 0 points, 2 comments]
- We can dream of where they are arxiv.org/pdf/2502.11252 [bsky, 0 points, 0 comments]
- https://arxiv.org/abs/2502.11252 #astro-ph.EP #astro-ph.GA Event Attributes [bsky, 0 points, 0 comments]
Related