跳到主要內容區塊
Close
:::
Open
  1. HomeHome
  2. > News

Events

:::
  • default image
  • Lectures
  • Institute of Astronomy and Astrophysics
Little Red Dots in JWST

2024-06-19 14:20 - 15:20

Add To Calendar

Abstract

I will discuss a fascinating new object we have discovered with JWST/NIRCam imaging and grism spectroscopy at z>4. With compact sizes (<100 pc), red rest-frame optical colors, and ubiquitous broad Balmer lines, these objects have many hallmarks of accreting supermassive black holes. However, they have x100 the number density of UV-selected quasars, and appear to have very massive black holes compared to their hosts. Also, unlike most known accreting black holes, they show no signs of hot dust or X-ray emission. I discuss our ongoing efforts to understand the nature of the Little Red Dots, and what they may teach us about the coevolution of black holes and galaxies.