Automated asteroseismic peak detections

TL;DR

This paper introduces an automated peak detection algorithm for solar-like oscillations in stellar data, enabling efficient and reliable analysis of large datasets from space observatories like Kepler.

Contribution

The paper presents a novel automated peak detection method that accurately identifies and characterizes solar-like oscillations without human intervention, improving efficiency over traditional visual inspection.

Findings

Reliable detection and characterization of solar-like oscillations.

Provides metrics for false positive and false negative rates.

Enables automated analysis of thousands of stars.

Abstract

Space observatories such as $\textit{Kepler}$ have provided data that can potentially revolutionise our understanding of stars. Through detailed asteroseismic analyses we are capable of determining fundamental stellar parameters and reveal the stellar internal structure with unprecedented accuracy. However, such detailed analyses, known as peak bagging, have so far been obtained for only a small percentage of the observed stars while most of the scientific potential of the available data remains unexplored. One of the major challenges in peak bagging is identifying how many solar-like oscillation modes are visible in a power density spectrum. Identification of oscillation modes is usually done by visual inspection which is time-consuming and has a degree of subjectivity. Here, we present a peak detection algorithm specially suited for the detection of solar-like oscillations. It reliably characterises the solar-like oscillations in a power density spectrum and estimates their parameters without human intervention. Furthermore, we provide a metric to characterise the false positive and false negative rates to provide further information about the reliability of a detected oscillation mode or the significance of a lack of detected oscillation modes. The algorithm presented here opens the possibility for detailed and automated peak bagging of the thousands of solar-like oscillators observed by $\textit{Kepler}$.