Browsing University of Hertfordshire by Author "Marshall, Madeline A."

Now showing items 1-4 of 4

    • GA-NIFS: A massive black hole in a low-metallicity AGN at z ∼ 5.55 revealed by JWST/NIRSpec IFS 

      Übler, Hannah; Maiolino, Roberto; Curtis-Lake, Emma; Pérez-González, Pablo G.; Curti, Mirko; Perna, Michele; Arribas, Santiago; Charlot, Stéphane; Marshall, Madeline A.; D'Eugenio, Francesco; Scholtz, Jan; Bunker, Andrew; Carniani, Stefano; Ferruit, Pierre; Jakobsen, Peter; Rix, Hans-Walter; Pino, Bruno Rodríguez Del; Willott, Chris J.; Böker, Torsten; Cresci, Giovanni; Jones, Gareth C.; Kumari, Nimisha; Rawle, Tim (2023-09-18)
      We present rest-frame optical data of the compact z=5.55 galaxy GS_3073 obtained using the integral field spectroscopy mode of the Near-InfraRed Spectrograph on board the James Webb Space Telescope. The galaxybs prominent ...

    • GA-NIFS: Black hole and host galaxy properties of two z-6.8 quasars from the NIRSpec IFU 

      Marshall, Madeline A.; Perna, Michele; Willott, Chris J.; Maiolino, Roberto; Scholtz, Jan; Übler, Hannah; Carniani, Stefano; Arribas, Santiago; Lützgendorf, Nora; Bunker, Andrew J.; Charlot, Stephane; Ferruit, Pierre; Jakobsen, Peter; Rix, Hans-Walter; Pino, Bruno Rodríguez Del; Böker, Torsten; Cameron, Alex J.; Cresci, Giovanni; Curtis-Lake, Emma; Jones, Gareth C.; Kumari, Nimisha; Pérez-González, Pablo G.; Reed, Sophie L. (2023-10-20)
      Aims. Integral field spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capabilities that cover key rest-frame ...

    • The JWST Hubble Sequence: The Rest-frame Optical Evolution of Galaxy Structure at 1.5 < z < 6.5 

      Ferreira, Leonardo; Conselice, Christopher J.; Sazonova, Elizaveta; Ferrari, Fabricio; Caruana, Joseph; Tohill, Clár-Bríd; Lucatelli, Geferson; Adams, Nathan; Irodotou, Dimitrios; Marshall, Madeline A.; Roper, Will J.; Lovell, Christopher C.; Verma, Aprajita; Austin, Duncan; Trussler, James; Wilkins, Stephen M. (2023-10-01)
      We present results on the morphological and structural evolution of a total of 3956 galaxies observed with JWST at 1.5 < z < 6.5 in the JWST CEERS observations that overlap with the CANDELS EGS field. This is the biggest ...

    • Triggering Active Galactic Nuclei in galaxy clusters 

      Marshall, Madeline A.; Shabala, Stanislav; Krause, Martin G. H.; Pimbblet, Kevin A.; Croton, Darren J.; Owers, Matt S. (2018-03-01)
      We model the triggering of active galactic nuclei (AGN) in galaxy clusters using the semianalytic galaxy formation model SAGE. We prescribe triggering methods based on the ram pressure galaxies experience as they move ...