Rotationally modulated photometric variations in B supergiants?
Alexandre David-Uraz (1, 2), Gregg Wade (3), Anthony Moffat (4),, Stan Owocki (1), V\'eronique Petit (1), the BRITE team ((1) University of, Delaware, (2) Florida Institute of Technology, (3) Royal Military College of, Canada, (4) Universit\'e de Montr\'eal)
TL;DR
This paper presents BRITE satellite observations of early-B supergiants epsilon Ori and kappa Ori, analyzing their photometric variations to investigate the presence of co-rotating bright spots and discussing associated challenges.
Contribution
It provides the first BRITE observational analysis of these supergiants and explores the potential of co-rotating bright spots as an explanation for their variability.
Findings
Data suggests possible co-rotating bright spots.
Challenges in confirming spot models are discussed.
Preliminary analysis indicates complex variability patterns.
Abstract
In this contribution, we present BRITE observations of the early-B supergiants Ori and Ori. We perform a preliminary analysis of the data acquired over the first two Orion observing runs. We evaluate whether they are compatible with co-rotating bright spots and discuss the challenges of such an approach.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Gamma-ray bursts and supernovae · Astronomy and Astrophysical Research