activity
20232026
most citedThe Corona Australis star formation complex is accelerating away from the Galactic plane

22 citations · 49 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.GA2026

A comprehensive cluster census of Orion. An application of the Significance Mode Analysis (SigMA) algorithm

Alena Rottensteiner, Sebastian Ratzenböck, João Alves +2

Precise astrometric surveys and modern clustering algorithms are working in step to transform our view of star-forming regions. By revealing a much richer substructure than previou…

astro-ph.SR2025★ 3 cited

Precise determination of circumstellar disk lifetimes: Disk evolution in a single star-forming region

Fabian A. Polnitzky, Sebastian Ratzenböck, Josefa E. Großschedl +1

Determining how long circumstellar disks last is key to understanding the timescale of planet formation. Typically, this is done by measuring the fraction of young stars with infra…

astro-ph.GA2025★ 2 cited

The evolution of velocity dispersion in the Sco-Cen OB association

Josefa E. Großschedl, João Alves, Sebastian Ratzenböck +4

We study how the stellar velocity dispersion within the Scorpius-Centaurus OB association (Sco-Cen) has evolved over approximately 20 million years, from its formation to the prese…

astro-ph.GA2024★ 22 cited

Most nearby young star clusters formed in three massive complexes

Cameren Swiggum, João Alves, Robert Benjamin +9

Efforts to unveil the structure of the local interstellar medium and its recent star formation history have spanned the past seventy years. Recent studies utilizing precise data fr…

astro-ph.GA2023★ 22 cited

The Corona Australis star formation complex is accelerating away from the Galactic plane

L. Posch, N. Miret-Roig, J. Alves +5

We study the kinematics of the recently discovered Corona Australis (CrA) chain of clusters by examining the 3D space motion of its young stars using Gaia DR3 and APOGEE-2 data. Wh…