Challenges in modelling the rest-frame ultraviolet/optical spectra of galaxies at the high-redshift frontier. Issue Volume 15:Issue S341(2019) (November 2019)

• Record Type: Journal Article
• Authors: Zackrisson, Erik; Vikaeus, Anton
• Editors: Boquien, Médéric; Lusso, Elisabeta; Gruppioni, Carlotta; Tissera, Patricia
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S341(2019)
• Page Start: 187
• Page End: 195
• Publication Date: 2019-11
• Subjects: Galaxies: high-redshift, -- galaxies: stellar content, -- ISM: lines and bands; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319002862
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: New challenges in the modelling of galaxy spectra are bound to emerge as upcoming telescopes like the James Webb Space Telescope will allow us to detect galaxies at fainter flux levels and higher redshifts than ever before. Here, we highlight three modelling problems that may become relevant for upcoming observations in the rest-frame ultraviolet/optical at the high-redshift frontier: stellar initial mass function sampling effects, Population III signatures and the leakage of ionizing radiation into the intergalactic medium.