1. Astrophysics: How fast can you blink?

    Nature 455(7212):477 (2008) PMID 18818645

  2. The optical afterglow of the short gamma-ray burst GRB 050709.

    Nature 437(7060):859 (2005) PMID 16208365

    It has long been known that there are two classes of gamma-ray bursts (GRBs), mainly distinguished by their durations. The breakthrough in our understanding of long-duration GRBs (those lasting more than approximately 2 s), which ultimately linked them with energetic type Ic supernovae, came fro...
  3. Pulse profile evolution in SGR 1806–20 and SGR 1900+14

    Nuclear Physics B - Proceedings Supplements 132:604 (2004)

    Soft Gamma-ray Repeaters exhibit pulse profile changes in connection with their burst activity. We present the first detailed history of the pulse profile evolution of two SGRs using a large set of RXTE/PCA observations spanning ∼5 years, and we examine their evolution with energy. This stu...
  4. Small-scale variations in the radiating surface of theGRB 011211jet

    New Astronomy 9(6):435 (2004)

    We report the discovery of the afterglow of the X-ray rich, long-duration γ-ray burst GRB 011211 and present evidence for oscillatory behaviour in its early optical light curve. The time-scale of the fluctuations, ∼1 h, is much smaller than the time of the observations, ∼12 h from th...
  5. Evolution of the polarization of the optical afterglow of the gamma-ray burst GRB030329.

    Nature 426(6963):157 (2003) PMID 14614499

    The association of a supernova with GRB030329 strongly supports the 'collapsar' model of gamma-ray bursts, where a relativistic jet forms after the progenitor star collapses. Such jets cannot be spatially resolved because gamma-ray bursts lie at cosmological distances; their existence is instead...
  6. A very energetic supernova associated with the gamma-ray burst of 29 March 2003.

    Nature 423(6942):847 (2003) PMID 12815425

    Over the past five years evidence has mounted that long-duration (>2 s) gamma-ray bursts (GRBs)-the most luminous of all astronomical explosions-signal the collapse of massive stars in our Universe. This evidence was originally based on the probable association of one unusual GRB with a supernov...
  7. Magnetars.

    Scientific American 288(2):34 (2003) PMID 12561456

  8. RXTE observations of GRB afterglows

    Nuclear Physics B - Proceedings Supplements 69(1):640 (1999)

    Variable X-ray sources that appear to be the afterglows of the strong gamma-ray bursts GRB 970616 and GRB 970828 have been discovered with the RXTE PCA. First seen less than 4 hours after the burst, the flux from the sources decreased with time. Although near the sensitivity limit of the PC...