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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Nicastro, Fabrizio
in Cooperation with on an Cooperation-Score of 37%
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article
Pharos: A GRB Afterglow Mission
Abstract
We present a mission concept for high resolution X-ray spectroscopy with a resolving power, R~6000, (c.f. R〈1000 for Chandra and XMM-Newton). Such a mission could be small and have a rapid response allowing us to `X-ray the Universe' using the afterglows of Gamma-ray Bursts (GRBs), in addition to quasars, to illuminate the `Cosmic Web', which is predicted to contain most of the baryons in the nearby Universe. The resolution of 50 km/s will allow us to search for faint metal absorption lines in the warm Inter-Galactic Matter (IGM) along the line of sight, in the ISM of the GRB host galaxy resolving internal galaxy motions, and gas motions within the larger IGM structures. These spectra would probe the metal enrichment and heating histories of both of the ISM of GRB host galaxies and of the warm IGM in the 'Cosmic Web'. Some GRBs may lie at z〉6, and X-ray spectroscopy of their afterglows would be one of very few ways of learning about that reionization epoch.