Exploration of the high-redshift universe enabled by THESEUS

Journal
Date Issued
2021
Author(s)
Tanvir, N. R.
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Le Floc'h, E.
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Christensen, L.
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Caruana, J.
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•
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Ciardi, B.
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Maio, U.
•
•
Piedipalumbo, E.
•
•
Noterdaeme, P.
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Graziani, L.
•
•
Bagoly, Z.
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Balázs, L. G.
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Basa, S.
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Behar, E.
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De Cia, A.
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•
De Pasquale, M.
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Frontera, F.
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Gomboc, A.
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Götz, D.
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Horvath, I.
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Hudec, R.
•
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O'Brien, P. T.
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Osborne, J. P.
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Paltani, S.
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Rosati, P.
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Sergijenko, O.
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Stanway, E. R.
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Szécsi, D.
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Toth, L. V.
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Urata, Y.
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Vergani, S.
•
Zane, S.
DOI
Abstract
At peak, long-duration gamma-ray bursts are the most luminous sources of electromagnetic radiation known. Since their progenitors are massive stars, they provide a tracer of star formation and star-forming galaxies over the whole of cosmic history. Their bright power-law afterglows provide ideal backlights for absorption studies of the interstellar and intergalactic medium back to the reionization era. The proposed THESEUS mission is designed to detect large samples of GRBs at z > 6 in the 2030s, at a time when supporting observations with major next generation facilities will be possible, thus enabling a range of transformative science. THESEUS will allow us to explore the faint end of the luminosity function of galaxies and the star formation rate density to high redshifts; constrain the progress of re-ionisation beyond z ≳6 ; study in detail early chemical enrichment from stellar explosions, including signatures of Population III stars; and potentially characterize the dark energy equation of state at the highest redshifts.
Volume
52
Issue
3
Start page
219
Uri
Url
Issn Identifier
0922-6435
Ads BibCode
2021ExA....52..219T
Rights
open.access
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