The Redshift of GRB 970508

@article{Reichart1998TheRO,
  title={The Redshift of GRB 970508},
  author={Daniel E. Reichart},
  journal={The Astrophysical Journal Letters},
  year={1998},
  volume={495},
  pages={L99 - L101}
}
  • D. Reichart
  • Published 7 December 1997
  • Physics
  • The Astrophysical Journal Letters
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It is the first GRB for which a distance scale has been determined: absorption and emission features in spectra of the optical afterglow place GRB 970508 at a redshift of z ≥ 0.835. The lack of a Lyα forest in these spectra further constrains this redshift to be less than z~2.3. I show that the spectrum of the optical afterglow of GRB 970508, once corrected for Galactic absorption, is inconsistent… 

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References

SHOWING 1-10 OF 18 REFERENCES

Observations and Theoretical Implications of GRB 970228

GRB 970228 is the first gamma-ray burst (GRB) for which prolonged postburst transient X-ray, optical, and infrared emission has been detected. Recent Hubble Space Telescope (HST) observations show

The optical counterpart to γ-ray burst GRB970228 observed using the Hubble Space Telescope

Although more than 2,000 astronomical γ-ray bursts (GRBs) have been detected, and numerous models proposed to explain their occurrence1, they have remained enigmatic owing to the lack of an obvious

Persistent Counterparts to Gamma-Ray Bursts

The recent discovery of persistent gamma-ray burst (GRB) counterparts at lower frequencies permits several important conclusions to be drawn. The spectrum of GRB 970508 is not consistent with an

Shocked by GRB 970228: the afterglow of a cosmological fireball

The location accuracy of the BeppoSAX Wide Field Cameras and acute ground-based follow-up have led to the detection of a decaying afterglow in X-rays and optical light following the classical

The Soft X-Ray Afterglow of Gamma-Ray Bursts, A Stringent Test for the Fireball Model

I consider the recent discovery of a soft X-ray source inside the error box of the gamma-ray burst GB 960720 by the SAX, ASCA, and ROSAT satellites, in terms of the fireball model. I show that the

TWO POPULATIONS AND MODELS OF GAMMA-RAY BURSTS

ABSTRACT /7: Gamma-ray burst statistics are best explained by a source population at cosmological distances, while spec-troscopy and intensity histories of some individual bursts imply an origin on

Hydrodynamics of Gamma-Ray Burst Afterglow

The detection of delayed emission at X-ray optical and radio wavelengths (“afterglow”) following gamma-ray bursts (GRBs) suggests that the relativistic shell that emitted the initial GRB as the

Radio Transients from Gamma-Ray Bursters

The rapid time variability of gamma-ray bursts implies the sources are very compact, and the peak luminosities are so high that some matter must be ejected at ultra-relativistic speeds. The very

IRAS maps of galactic emission and the zodiacal bands

Maps of the IRAS large-scale 100 μm emission, after subtraction of a physical model for the zodiacal emission, are presented. There is a good detailed agreement with maps of the H I column density,

Optical and Long-Wavelength Afterglow from Gamma-Ray Bursts

We discuss the evolution of cosmological gamma-ray burst remnants, consisting of the cooling and expanding fireball ejecta together with any swept-up external matter, after the gamma-ray event. We