S20A0094abst

S20A0094

The current framework of the cold dark matter universe predicts that matter assembles in filaments, and at the intersection of which galaxies form and evolve. Directly imaging such intergalactic/circumgalactic mediums (IGMs/CGMs) is a major goal of observational astronomy, and the advent of optical IFU instruments now enable us to trace cool and low density gas within the filaments in emission. The most active starbursts, which are extremely bright at submm, offer an ideal laboratory, allowing us to investigate how galaxies acquire fuels for star-formation, and how they interact with the cosmic web gas filaments, during an episodic, growing phase of galaxy formation. Here we propose FOCAS-IFU observations of 6 SMGs at spec-z=3-4 in COSMOS, which are nearly complete sample of the brightest SMGs (SFR∼1400-2000 Msun/yr). We will map cool gas reservoirs surrounding the monsterious starbursts which convert gas to stars very rapidly. The observations will provide key insights on the role of IGMs/CGMs in galaxy formation in the early Universe.

---

This document was translated from L^AT_EX by H^EV^EA.