APEC Seminar (Astronomy - Particle Physics - Experimental Physics - Cosmology)

Speaker: Zheng Zheng (Utah U)
Title: The Curious Case of Lyman-alpha Emitting Galaxies
Date (JST): Thu, Jun 29, 2017, 13:30 - 14:30
Place: Seminar Room A
Abstract: Lyman-alpha Emitting galaxies or Lyman-alpha emitters (LAEs), star-forming galaxies selected through their strong Lyman-alpha emission, are becoming an important probe of galaxy formation, cosmic reionization, and cosmology. I will present our recent work towards understanding some properties of those galaxies based on Lyman-alpha radiative transfer modeling, which includes the role of the anisotropic gas distribution around galaxies in shaping observed properties of LAEs and the origin of the extended Lyman-alpha emission around LAEs. I will talk about the anisotropic clustering of LAEs induced by radiative transfer effect and the current observational status. I will also discuss some puzzles in the study of LAEs.