Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/162265
Title: | An ionized superbubble powered by a protocluster at z = 6.5 |
Author: | Rodríguez Espinosa, José Miguel Mas-Hesse, José Miguel Salvador Solé, Eduard Calvi, R. Manrique Oliva, Alberto Chanchaiworawit, K. Guzmán, Rafael Gallego, Jesús Herrero, Artemio Marín Franch, Antonio |
Keywords: | Galàxies Formació d'estels Formació de les galàxies Cosmologia Galaxies Star formation Galaxy formation Cosmology |
Issue Date: | 18-Mar-2020 |
Publisher: | Royal Astronomical Society |
Abstract: | We show herein that a proto-cluster of Ly α emitting galaxies, spectroscopically confirmed at redshift 6.5, produces a remarkable number of ionizing continuum photons. We start from the Ly α fluxes measured in the spectra of the sources detected spectroscopically. From these fluxes, we derive the ionizing emissivity of continuum photons of the protocluster, which we compare with the ionizing emissivity required to reionize the protocluster volume. We find that the sources in the protocluster are capable of ionizing a large bubble, indeed larger than the volume occupied by the protocluster. For various calculations, we have used the model AMIGA, in particular to derive the emissivity of the Lyman continuum photons required to maintain the observed volume ionized. Besides, we have assumed the ionizing photons escape fraction given by AMIGA at this redshift. |
Note: | Reproducció del document publicat a: https://doi.org/10.1093/mnrasl/slaa045 |
It is part of: | Monthly Notices of the Royal Astronomical Society: Letters, 2020, vol. 495, num. 1, p. L17-L21 |
URI: | http://hdl.handle.net/2445/162265 |
Related resource: | https://doi.org/10.1093/mnrasl/slaa045 |
ISSN: | 1745-3933 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
701007.pdf | 209.37 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.