3 papers
astro-ph.SR2025
Precise determination of circumstellar disk lifetimes: Disk evolution in a single star-forming region
Fabian A. Polnitzky, Sebastian Ratzenböck, Josefa E. GroÃschedl +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
Kinematics of young stellar objects in NGC 2024 based on infrared proper motions
Alena Rottensteiner, Monika G. Petr-Gotzens, Stefan Meingast +6
The most recently formed young stellar objects (YSOs) in active star forming regions are excellent tracers of their parent cloud motion. Their positions and dynamics provide insigh…
astro-ph.GA2025
Toward the fabric of the Milky Way I. The density of disk streams from a local pc volume
Sebastian Ratzenböck, João Alves, Emily L. Hunt +3
We studied 12 disk streams found in a 250 pc volume in the solar neighborhood, which we define as coeval and comoving stellar structures with aspect ratios greater than 3:1…