Spatially resolved spectroscopic analysis of Ly α haloes Radial evolution of the Ly α line profile out to 60 kpc

• Published in: Astronomy and astrophysics (Berlin) Vol. 691; p. A66
• Main Authors: Guo, Yucheng, Bacon, Roland, Wisotzki, Lutz, Garel, Thibault, Blaizot, Jérémy, Schaye, Joop, Matthee, Jorryt, Leclercq, Floriane, Boogaard, Leindert, Richard, Johan, Verhamme, Anne, Brinchmann, Jarle, Michel-Dansac, Léo, Kusakabe, Haruka
• Format: Journal Article
• Language: English
• Published: EDP Sciences 01.11.2024
• Subjects: Astrophysics; Physics; galaxies: formation; intergalactic medium; cosmology: observations; galaxies: evolution; galaxies: high-redshift

The extended Ly α haloes (LAHs) have been found to be prevalent around high-redshift star-forming galaxies. However, the origin of the LAHs is still a subject of debate. The spatially resolved analysis of Ly α profiles provides an important diagnostic. We analyse the average spatial extent and spect...