# ASAS-SN Observations of the Pulsation of some R Coronae Borealis (RCB) Stars

## TL;DR

This study uses ASAS-SN photometry and AAVSO analysis to investigate the pulsational behavior of 31 R Coronae Borealis stars, revealing complex, multiperiodic variability with small amplitudes over weeks.

## Contribution

It provides detailed pulsation periods and variability characteristics for a significant sample of RCB stars using combined survey data and analysis tools.

## Key findings

- Many stars have derived periods of a few weeks.
- Variability is small, complex, and sometimes multiperiodic.
- Amplitude variations are noticeable over time.

## Abstract

Photometry from the All-Sky Automated Survey for Supernovae (ASAS-SN), along with the AAVSO VSTAR time-series analysis package has been used to study the pulsational properties of 31 R Coronae Borealis (RCB) stars. Periods have been derived for many of the stars, but the variability tends to be small and complex, occasionally multiperiodic, with noticeable variation in amplitude. As with other RCB stars, the periods are a few weeks.