Can I read The SUPERCOLD-CGM survey: \\ I. Probing the extended CO(4-3) Emission of the Circumglactic medium in a sample of 10 Enormous Ly$\alpha$ Nebulae at $z\sim2$ on EtoBox?

The SUPERCOLD-CGM survey: \\ I. Probing the extended CO(4-3) Emission of the Circumglactic medium in a sample of 10 Enormous Ly$\alpha$ Nebulae at $z\sim2$ by Li, Jianrui; Emonts, Bjorn H. C.; Cai, Zheng; Li, Jianan; Battaia, Fabrizio Arrigoni; Prochaska, Jason X; Yoon, Ilsang; Lehnert, Matthew D.; Sarazin, Craig; Wu, Yunjing; Lacy, Mark; Mason, Brian; Massingill, Kyle is a scholarly article available to read on EtoBox.

What is The SUPERCOLD-CGM survey: \\ I. Probing the extended CO(4-3) Emission of the Circumglactic medium in a sample of 10 Enormous Ly$\alpha$ Nebulae at $z\sim2$ about?

To understand how massive galaxies at high-$z$ co-evolve with enormous reservoirs of halo gas, it is essential to study the coldest phase of the circum-galactic medium (CGM), which directly relates to stellar growth. The SUPERCOLD-CGM survey is the first statistical survey of cold molecular gas on CGM scales. We present ALMA+ACA observations of CO(4-3) and continuum emission from 10 Enormous Ly$\alpha$ Nebula (ELANe) around ultraluminous type-I QSOs at $z\sim2$. We detect CO(4-3) in 100$\%$ of our targets, with 60$\%$ showing extended CO on scales of 15$-$100 kpc. Q1228+3128 reveals the most extended CO(4-3) reservoir of $\sim$100 kpc and is the only radio-loud target in our sample. The CO reservoir is located along the radio axis, which could indicate a link between the inner radio-jet and cold halo gas. For the other five radio-quiet ELANe, four of them show extended CO(4-3) predominantly in the direction of their companions. These extended CO(4-3) reservoirs identify enrichment of the CGM, and may potentially contribute to widespread star formation. However, there is no evidence from CO(4-3) for diffuse molecular gas spread across the full extent of the Ly$\alpha$ nebulae. One t

Author

Li, Jianrui; Emonts, Bjorn H. C.; Cai, Zheng; Li, Jianan; Battaia, Fabrizio Arrigoni; Prochaska, Jason X; Yoon, Ilsang; Lehnert, Matthew D.; Sarazin, Craig; Wu, Yunjing; Lacy, Mark; Mason, Brian; Massingill, Kyle

Published

2023

Language

EN