Quick search Find article
Quick search
Find article

Spectral Lags Explained as Scattering from Accelerated Scatterers

FREE ISSUE

David Eichler1 and Hadar Manis1

Show affiliations


A quantitative theory of spectral lags for γ-ray bursts (GRBs) is given. The underlying hypothesis is that GRB subpulses are photons that are scattered into our line of sight by local concentrations of baryons that are accelerated by radiation pressure. For primary spectra that are power laws with exponential cutoffs, the width of the pulse and its fast rise, slow decay asymmetry is found to increase with decreasing photon energy, and the width near the exponential cutoff scales approximately as Eph−η, where η ~ 0.4, as observed. The spectral lag time is naturally inversely proportional to luminosity, all else being equal, also as observed.

Subject headings

gamma rays: bursts


Dates

Issue 2 (2008 December 20)

Received 2008 May 17, accepted for publication 2008 October 23

Published 2008 November 12



  1. Spectral Lags Explained as Scattering from Accelerated Scatterers

    David Eichler and Hadar Manis 2008 ApJ 689 L85

  2. Building and testing a production quality grid software distribution for the Open Science Grid

    A Roy (on behalf of the Osg consortium) 2009 J. Phys.: Conf. Ser. 180 012052

  3. In situ x-ray study of the oxidation of a vicinal NiAl(6,7,1) surface

    C Ellinger et al 2009 New J. Phys. 11 113004

  4. Wannier functions of elliptic one-gap potential

    E D Belokolos et al 2004 J. Phys. A: Math. Gen. 37 9685

  5. GRB 060218: The Nature of the Optical-UV Component

    C.-I. Björnsson 2008 ApJ 672 443

  6. Resonance frequency of microbubbles in small blood vessels: a numerical study

    E Sassaroli and K Hynynen 2005 Phys. Med. Biol. 50 5293

  7. Self-averaging sequences in the statistical mechanics of random copolymers

    E J Janse van Rensburg et al 2001 J. Phys. A: Math. Gen. 34 6381

  8. Preface

    J F Benage, J W Dufty and M S Murillo 2003 J. Phys. A: Math. Gen. 36

  9. Arrow diagram theory for non-orthogonal electronic groups: the continued fractions method

    Yu Wang and Lev Kantorovich 2009 J. Phys.: Condens. Matter 21 474204

  10. Dose–volume objectives in multi-criteria optimization

    Tarek Halabi et al 2006 Phys. Med. Biol. 51 3809

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.