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arXiv · 2203.15819

Coincidence between morphology and star-formation activity through cosmic time: the impact of the bulge growth

Paola Dimauro·Emanuele Daddi·Francesco Shankar·Andrea Cattaneo·Marc Huertas-Company·Mariangela Bernardi·Fernando Caro·Renato Dupke·Boris Häußler·Johnston Evelyn·Arianna Cortesi·Simona Mei·Reynier Peletier
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Abstract

The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions of massive galaxies in the redshift range 0 0.2) are equally distributed in number between star forming and passive regions. The vast majority of bulges in the Main Sequence galaxies are quiescent, while star formation is localized in the disc component. Our current findings underline a strong correlation between the presence of the bulge and the star formation state of the galaxy. A bulge, if present, is often quiescent, independently of the morphology or the star formation activity of the host galaxy. Additionally, if a galaxy is quiescent, with a large probability, is hosting a bulge. Conversely, if the galaxy has a disky shape is highly probable to be star forming.

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Paola Dimauro, Emanuele Daddi, Francesco Shankar, Andrea Cattaneo, Marc Huertas-Company, Mariangela Bernardi, Fernando Caro, Renato Dupke, Boris Häußler, Johnston Evelyn, Arianna Cortesi, Simona Mei, Reynier Peletier. 2022-03-29. Coincidence between morphology and star-formation activity through cosmic time: the impact of the bulge growth. https://doi.org/10.1093/mnras%2Fstac884

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