Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna

High-z galaxies with the JWST and the ELT: toward ever-finer detail

Abstract The exploration of the early Universe is being transformed by the James Webb Space Telescope ( JWST ), which delivers unprecedented angular resolution at infrared wavelengths and opens a unique window redward of the K band (2 µm). Thanks to NIRCam , NIRISS , NIRSpec , an...

Evidence of a massive accretion event 1.8 billion years before the Gaia-Sausage-Enceladus merger

Abstract The merger history of the Galaxy has been traced back firmly to a redshift of 2 (10 billion years ago). While evidence for the existence of at least one more substantial merger before this time has been presented, its interpretation is yet to be fully established. Here w...