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  • Ciardi, B. (author)

Simulating the 21 cm forest detectable with LOFAR and SKA in the spectra of high-z GRBs

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • 2015-08-12
  • Oxford University Press (OUP),2015
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-125024
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-125024URI
  • https://doi.org/10.1093/mnras/stv1640DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • We investigate the feasibility of detecting 21 cm absorption features in the afterglow spectra of high redshift long Gamma Ray Bursts (GRBs). This is done employing simulations of cosmic reionization, together with estimates of the GRB radio afterglow flux and the instrumental characteristics of the LOw Frequency ARray (LOFAR). We find that absorption features could be marginally (with a S/N larger than a few) detected by LOFAR at z greater than or similar to 7 if the GRB is a highly energetic event originating from Pop III stars, while the detection would be easier if the noise were reduced by one order of magnitude, i.e. similar to what is expected for the first phase of the Square Kilometre Array (SKA1-low). On the other hand, more standard GRBs are too dim to be detected even with ten times the sensitivity of SKA1-low, and only in the most optimistic case can a S/N larger than a few be reached at z greater than or similar to 9.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Inoue, S. (author)
  • Abdalla, F. B. (author)
  • Asad, K. (author)
  • Bernardi, G. (author)
  • Bolton, J. S. (author)
  • Brentjens, M. (author)
  • de Bruyn, A. G. (author)
  • Chapman, E. (author)
  • Daiboo, S. (author)
  • Fernandez, E. R. (author)
  • Ghosh, A. (author)
  • Graziani, L. (author)
  • Harker, G. J. A. (author)
  • Iliev, I. T. (author)
  • Jelic, V. (author)
  • Jensen, HannesStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)hjens (author)
  • Kazemi, S. (author)
  • Koopmans, L. V. E. (author)
  • Martinez, O. (author)
  • Maselli, A. (author)
  • Mellema, GarreltStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)gmell (author)
  • Offringa, A. R. (author)
  • Pandey, V. N. (author)
  • Schaye, J. (author)
  • Thomas, R. (author)
  • Vedantham, H. (author)
  • Yatawatta, S. (author)
  • Zaroubi, S. (author)
  • Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

Related titles

  • In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)453:1, s. 101-1050035-87111365-2966

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