Dipper stars are extrinsically variable stars with deep dimming events due to extended, often dusty, structures produced by a wide range of mechanisms such as collisions, protoplanetary evolution or stellar winds. ASAS-SN has discovered 12 dipper-like objects as part of its normal operations. Here we systematically search the ∼ 5.1 million ASAS-SN targets with 13 g 14 ~mag for dippers with Δ g ≥ 0.3 ~mag to identify 4 new candidates. We also discover 15 long-period eclipsing binary candidates. We characterized the 19 new and 12 previously discovered objects using the ASAS-SN light curves and archival multi-wavelength data. We divide them into three categories: long-period eclipsing binaries with a single eclipse (13 total), long-period eclipsing binaries with multiple eclipses (7 total) and dipper stars with dust or disk occultations (11 total).
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JoHantgen et al. (Wed,) studied this question.
www.synapsesocial.com/papers/698586238f7c464f2300a1a5 — DOI: https://doi.org/10.33232/001c.156224
B. JoHantgen
D. M. Rowan
R. Forés-Toribio
The Open Journal of Astrophysics
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