Determining Galaxy Kinematics and ISM conditions with the JWST/NIRSpec IFU

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• Gareth Jones (Cavendish)
• Friday 24 January 2025, 11:30-12:30
• Ryle Seminar Room, KICC + online.

If you have a question about this talk, please contact Sandro Tacchella.

Massive, starbursting galaxies in the early Universe represent some of the most extreme objects in the study of galaxy evolution. Studies of their FIR emission with ALMA /NOEMA have revealed immense molecular gas reservoirs, high levels of star formation activity, and evidence for complex kinematics (e.g., rotation, merging, outflows). With the advent of the JWST /NIRSpec IFU , we may now investigate the ionised gas properties and kinematics on sub-kpc scales. Here, we detail the study of three such sources from the GA-NIFS survey: the SMG HFLS3 (z=6.34), the FIR -bright source HZ10 (z=5.65), and the LBG B1465666 (z=7.15). Using new NIR Spec/IFU data we present spectral fits, morpho-kinematic maps, and line ratio analyses for each. All sources are resolved into multiple discrete components, with spatial variations in ISM conditions that are explored through comparison to FIR observations.

This talk is part of the Galaxies Discussion Group series.

This talk is included in these lists:

• Cambridge Astronomy Talks
• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Galaxies Discussion Group
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Ryle Seminar Room, KICC + online

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