Why the Northern Hemisphere Needs a 30-40m Telescope and the Science at Stake: Ultra-Low-Mass Dwarf Galaxies Across the Boreal Cosmic Web
Abstrak
Dwarf galaxies dominate the galaxy population in the nearby Universe and occupy the regime where feedback, reionization, and environment exert their strongest influence on galaxy formation. Despite their importance, detailed spectroscopic constraints on the faintest dwarfs are currently limited to a handful of systems in the Local Volume, leaving the role of large-scale environment essentially unexplored at ultra-low stellar masses. A northern 30-40m class telescope equipped with a multiplexed optical integral-field spectrograph will enable a systematic, spatially resolved spectroscopic census of dwarf galaxies with $M_\star \sim 10^{5}-10^{7} M_\odot$ across a wide range of environments. A deep survey of the Coma Cluster, combined with targeted observations of dwarfs in clusters, groups, filaments, and low-density regions, will map star formation histories, chemical enrichment, and internal kinematics at unprecedented depth. This program will directly test models of dark-matter physics, early-Universe feedback, and environmental quenching in the lowest-mass galaxies, establishing dwarf galaxies as precision probes of both galaxy formation and fundamental physics.
Topik & Kata Kunci
Penulis (25)
J. Alfonso L. Aguerri
Jesús Falcón-Barroso
María Argudo-Fernández
Yago Ascasibar
Marc Balcells
Bahar Bidaran
Virginia Cuomo
David Fernández-Arenas
Anna Ferré-Mateu
Rubén García-Benito
Rosa María González Delgado
Marcella Longhetti
Pavel Mancera-Piña
Antonino Marasco
Lorenzo Morelli
Reynier F. Peletier
Isabel Pérez Martín
Francesca Pinna
Daniel Rosa González
Marc Sarzi
Alexandre Vazdekis
Marc Verheijen
Pedro Villalba González
Anne-Marie Weijmans
Stefano Zarattini
Format Sitasi
Akses Cepat
- Tahun Terbit
- 2025
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓