Pieter van Dokkum

Feb 14, 2024 | nature.com | Lukas J. Furtak |Ivo Labbe |Adi Zitrin |Anna de Graaff |Rachel Bezanson |Gabriel Brammer | +14 more

AbstractEarly JWST observations have uncovered a new population of red sources that might represent a previously overlooked phase of supermassive black hole growth1−−3. One of the most intriguing examples is an extremely red, point-like object that was found to be triply-imaged by the strong lensing (SL) cluster Abell 27444. Here we present deep JWST/NIRSpec observations of this object, Abell2744-QSO1.

Oct 19, 2023 | nature.com | Pieter van Dokkum |Gabriel Brammer |Bingjie Wang

AbstractOne of the surprising results from the Hubble Space Telescope was the discovery that many of the most massive galaxies at redshift z ≈ 2 are very compact, having a half-light radius of only 1−2 kpc. The interpretation is that massive galaxies formed inside out, with their cores largely in place by z ≈ 2 and approximately half of their present-day mass added later through minor mergers.

Sep 26, 2023 | fotos.europapress.es | Pieter van Dokkum

26/09/2023- Zaragoza Zaragoza.- El Premio Criticón, galardón literario dirigido al ámbito escolar, cuenta con más de mil inscritos