Jan 5 – 9, 2026
The University of Hong Kong
Asia/Hong_Kong timezone

The Rise and Fall of HuBi 1

CC01
Jan 8, 2026, 11:55 AM
15m
Talk CC01: Star formation (including late stage stellar evolution) Contributed talks

Speaker

Mr Zhengjie Tian (The University of Hong Kong)

Description

HuBi 1 is a born-again PNe that underwent a very late thermal pulse (VLTP). The previous research suggests it experienced a rapid brightness decline over five decades, mostly attributable to dust obscuration formed through VLTP. Furthermore, VLTP-born-again objects experience a brightening phase due to the expansion of the star driven by the He-shell flash before the formation of the dust. In this study, we present the most comprehensive multi-wavelegth lightcurve of HuBi 1, which reveals a brightening process for the first time. Through this, we reconstructed the evolutionary history of HuBi 1. Moreover, we have analyzed its SED in the infrared band to investigate its dust properties.

Author

Mr Zhengjie Tian (The University of Hong Kong)

Co-authors

Prof. Quentin Parker (The University of Hong Kong) Dr SeyedAbdolreza Sadjadi (The University of Hong Kong)

Presentation materials

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