GRB090423 at a redshift of z~8.1

Bibcode
2009Natur.461.1258S
DOI
10.1038/nature08445
Salvaterra, R.; Della Valle, M.; Campana, S.; Chincarini, G.; Covino, S.; D'Avanzo, P.; Fernández-Soto, A.; Guidorzi, C.; Mannucci, F.; Margutti, R.; Thöne, C. C.; Antonelli, L. A.; Barthelmy, S. D.; de Pasquale, M.; D'Elia, V.; Fiore, F.; Fugazza, D.; Hunt, L. K.; Maiorano, E.; Marinoni, S.; Marshall, F. E.; Molinari, E.; Nousek, J.; Pian, E.; Racusin, J. L.; Stella, L.; Amati, L.; Andreuzzi, G.; Cusumano, G.; Fenimore, E. E.; Ferrero, P.; Giommi, P.; Guetta, D.; Holland, S. T.; Hurley, K.; Israel, G. L.; Mao, J.; Markwardt, C. B.; Masetti, N.; Pagani, C.; Palazzi, E.; Palmer, D. M.; Piranomonte, S.; Tagliaferri, G.; Testa, V.
Referencia bibliográfica

Nature, Volume 461, Issue 7268, pp. 1258-1260 (2009).

Fecha de publicación:
10
2009
Revista
Nature
Número de autores
45
Número de autores del IAC
0
Número de citas
456
Número de citas referidas
375
Descripción
Gamma-ray bursts (GRBs) are produced by rare types of massive stellar explosion. Their rapidly fading afterglows are often bright enough at optical wavelengths that they are detectable at cosmological distances. Hitherto, the highest known redshift for a GRB was z = 6.7 (ref. 1), for GRB080913, and for a galaxy was z = 6.96 (ref. 2). Here we report observations of GRB090423 and the near-infrared spectroscopic measurement of its redshift, z = . This burst happened when the Universe was only about 4 per cent of its current age. Its properties are similar to those of GRBs observed at low/intermediate redshifts, suggesting that the mechanisms and progenitors that gave rise to this burst about 600,000,000years after the Big Bang are not markedly different from those producing GRBs about 10,000,000,000years later.
Tipo
Con árbitro

Te puede interesar

  • Con árbitro
    Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars
    With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations. The European Space Agency's Human and Robotic Exploration program provides an excellent opportunity to push forward the limits of our
    Santos, Ângela R. G. et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024npjMG..10...96M
    Número de citas
    0
  • Con árbitro
    Magnetic diffusion in solar atmosphere produces measurable electric fields
    The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the associated electric field. However, attempts at measuring electric fields in the solar atmosphere are scarce, and none exist for sites where the magnetic energy is
    Wöger, Friedrich et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024NatCo..15.8811A
    Número de citas
    0
  • Con árbitro
    Echo-free quality factor of a multilayer axion haloscope
    We report a methodology to determine the quality factor ( Q) of wavy dark matter detectors equipped with multilayered resonators, including Fabry-Pérot interferometers and the so-called dielectric haloscope. An anechoic chamber enables the observation of the resonance frequency and its amplitude for an unlimited series of layers for the first time
    DALI Collaboration et al.

    Fecha de publicación:

    10
    2024
    Bibcode
    2024PhRvD.110g2013H
    Número de citas
    0