The Complexity of the Cetus Stream Unveiled from the Fusion of STREAMFINDER and StarGO

Zhen Yuan, Khyati Malhan, Federico Sestito, Rodrigo A. Ibata, Nicolas F. Martin, Jiang Chang, Ting S. Li, Elisabetta Caffau, Piercarlo Bonifacio, Michele Bellazzini, Yang Huang, Karina Voggel, Nicolas Longeard, Anke Arentsen, Amandine Doliva-Dolinsky, Julio Navarro, Benoit Famaey, Else Starkenburg, David S. Aguado

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Abstract

We combine the power of two stream-searching tools, STREAMFINDER and StarGO applied to the Gaia EDR3 data, to detect stellar debris belonging to the Cetus stream system that forms a complex, nearly polar structure around the Milky Way. In this work, we find the southern extensions of the northern Cetus stream as the Palca stream and a new southern stream, which overlap on the sky but have different distances. These two stream wraps extend over more than $\sim100\deg$ on the sky ($-60\deg
Original languageEnglish
JournalThe Astrophysical Journal
DOIs
Publication statusPublished - 10 Dec 2021

Keywords

  • astro-ph.GA

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