Cover Image

Bubble mapping with the square kilometre array: I. detecting galaxies with Euclid, JWST, WFIRST, and ELT within ionized bubbles in the intergalactic medium at z > 6

The Square Kilometre Array (SKA) is expected to provide the first tomographic observations of the neutral intergalactic medium at redshifts z > 6 and pinpoint the locations of individual ionized bubbles during early stages of cosmic reionization. In scenarios where star-forming galaxies provide m...

Full description

Saved in:
Bibliographic Details
Main Authors: Zackrisson, Erik (Author) , Majumdar, Suman (Author) , Mondal, Rajesh (Author) , Binggeli, Christian (Author) , Sahlén, Martin (Author) , Choudhury, Tirthankar Roy (Author) , Ciardi, Benedetta (Author) , Datta, Abhirup (Author) , Datta, Kanan K. (Author) , Dayal, Pratika (Author) , Ferrara, Andrea (Author) , Giri, Sambit K. (Author) , Maio, Umberto (Author) , Malhotra, Sangeeta (Author) , Mellema, Garrelt (Author) , Mesinger, Andrei (Author) , Rhoads, James (Author) , Rydberg, Claes-Erik (Author) , Shimizu, Ikkoh (Author)
Format: Article (Journal)
Language:English
Published: 2020 January 17
In: Monthly notices of the Royal Astronomical Society
Year: 2020, Volume: 493, Issue: 1, Pages: 855-870
ISSN:1365-2966
DOI:10.1093/mnras/staa098
Online Access:Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1093/mnras/staa098
Verlag, lizenzpflichtig, Volltext: https://academic.oup.com/mnras/article/493/1/855/5708941
Get full text
Author Notes:Erik Zackrisson, Suman Majumdar, Rajesh Mondal, Christian Binggeli, Martin Sahlén, Tirthankar Roy Choudhury, Benedetta Ciardi, Abhirup Datta, Kanan K. Datta, Pratika Dayal, Andrea Ferrara, Sambit K. Giri, Umberto Maio, Sangeeta Malhotra, Garrelt Mellema, Andrei Mesinger, James Rhoads, Claes-Erik Rydberg and Ikkoh Shimizu
Description
Summary:The Square Kilometre Array (SKA) is expected to provide the first tomographic observations of the neutral intergalactic medium at redshifts z > 6 and pinpoint the locations of individual ionized bubbles during early stages of cosmic reionization. In scenarios where star-forming galaxies provide most of the ionizing photons required for cosmic reionization, one expects the first ionized bubbles to be centred on overdensities of such galaxies. Here, we model the properties of galaxy populations within isolated, ionized bubbles that SKA-1 should be able to resolve at z ≈ 7–10, and explore the prospects for galaxy counts within such structures with various upcoming near-infrared telescopes. We find that, for the bubbles that are within reach of SKA-1 tomography, the bubble volume is closely tied to the number of ionizing photons that have escaped from the galaxies within. In the case of galaxy-dominated reionization, galaxies are expected to turn up above the spectroscopic detection threshold of JWST and ELT in even the smallest resolvable bubbles at z ≤ 10. The prospects of detecting galaxies within these structures in purely photometric surveys with Euclid, WFIRST, JWST, or ELT are also discussed. While spectroscopy is preferable towards the end of reionization to provide a robust sample of bubble members, multiband imaging may be a competitive option for bubbles at z ≈ 10, due to the very small number of line-of-sight interlopers expected at these redshifts.The Square Kilometre Array (SKA) is expected to provide the first tomographic observations of the neutral intergalactic medium at redshifts z > 6
Item Description:Gesehen am 12.11.2020
Physical Description:Online Resource
ISSN:1365-2966
DOI:10.1093/mnras/staa098

Similar Items