Comparing the spectral lag of short and long gamma-ray bursts and its relation with the luminosity

Abstract

We investigated the rest frame spectral lags of two complete samples of bright long (50) and short (6) gamma-ray bursts (GRB) detected by Swift. We analysed the Swift/BAT data through a discrete cross-correlation function (CCF) fitted with an asymmetric Gaussian function to estimate the lag and the associated uncertainty. We find that half of the long GRBs have a positive lag and half a lag consistent with zero. All short GRBs have lags consistent with zero. The distributions of the spectral lags for short and long GRBs have different average values. Limited by the small number of short GRBs, we cannot exclude at more than 2 sigma significance level that the two distributions of lags are drawn from the same parent population. If we consider the entire sample of long GRBs, we do not find evidence for a lag-luminosity correlation, rather the lag-luminosity plane appears filled on the left hand side, thus suggesting that the lag-luminosity correlation could be a boundary. Short GRBs are consistent with the long ones in the lag-luminosity plane.

arXiv comment11 pages, 6 figures, 2 tables, accepted for publication in MNRAS

References in corpus (41)

• The Burst Alert Telescope (BAT) on the Swift MIDEX Mission
• SparsePak: A Formatted Fiber Field Unit for The WIYN Telescope Bench Spectrograph. I. Design, Construction, and Calibration
• On Uncertainties in Cross-Correlation Lags and the Reality of Wavelength-Dependent Continuum Lags in Active Galactic Nuclei
• Testing Einstein's special relativity with Fermi's short hard gamma-ray burst GRB090510
• Swift detects a remarkable gamma-ray burst, GRB 060614, that introduces a new classification scheme
• Connection Between Energy-dependent Lags And Peak Luminosity In Gamma-ray Bursts
• Short Gamma-Ray Bursts with Extended Emission
• The Hubble Diagram to Redshift >6 from 69 Gamma-Ray Bursts
• The Second Swift BAT Gamma-Ray Burst Catalog
• A complete sample of bright Swift Long Gamma-Ray Bursts: Sample presentation, Luminosity Function and evolution
• BATSE Observations of Gamma-Ray Burst Spectra. II. Peak Energy Evolution in Bright, Long Bursts -
• Short vs Long and Collapsars vs. non-Collapsar: a quantitative classification of GRBs
• Implications of Lag-Luminosity Relationship for Unified GRB Paradigms
• A complete sample of bright Swift Long Gamma Ray Bursts: testing the spectral-energy correlations
• Peak Luminosity-Spectral Lag Relation Caused by the Viewing Angle of the Collimated Gamma-Ray Bursts
• Evidence for a Photospheric Component in the Prompt Emission of the Short GRB120323A and its Effects on the GRB Hardness-Luminosity Relation
• Gamma-Ray Burst Spectral Evolution Through Crosscorrelations of Discriminator Light Curves
• Lag-luminosity relation in gamma-ray burst X-ray flares: a direct link to the prompt emission
• Spectral Lags and the Lag-Luminosity Relation: An Investigation with Swift BAT Gamma-ray Bursts
• Curvature Effects in Gamma Ray Burst Colliding Shells
• A complete sample of bright Swift short Gamma-Ray Bursts
• Astrophysics: A burst of new ideas
• The Lag-Luminosity Relation in the GRB Source-Frame: An Investigation with Swift BAT Bursts
• The X-ray absorbing column density of a complete sample of bright Swift Gamma-Ray Bursts
• Correlations Between Lag, Luminosity, and Duration in Gamma-ray Burst Pulses
• Spectral lags and the energy dependence of pulse width in gamma-ray bursts: contributions from the relativistic curvature effect
• Time-Resolved Spectroscopy of the 3 Brightest and Hardest Short Gamma-Ray Bursts Observed with the FGST Gamma-Ray Burst Monitor
• Time Resolved Spectral Analysis of Bright Gamma Ray Bursts
• A complete sample of bright Swift Gamma-Ray Bursts: X-ray afterglow luminosity and its correlation with the prompt emission
• On the Kinematic Origin of the Luminosity-Pulse Lag Relationship in Gamma-ray Bursts
• The Dark Bursts population in a complete sample of bright Swift Long Gamma-Ray Bursts
• The Connection Between Spectral Evolution and GRB Lag
• Spectral lags caused by the Doppler effect of fireballs
• On Spectral and Temporal Variability in Blazars and Gamma Ray Bursts
• The Epeak-Eiso relation revisited with Fermi GRBs: Resolving a long-standing debate?
• Interpretations of gamma-ray burst spectroscopy. I. Analytical and numerical study of spectral lags
• Radio afterglows of a complete sample of bright Swift GRBs: predictions from present days to the SKA era
• Testing the gamma-ray burst variability/peak luminosity correlation on a Swift homogeneous sample
• Short Gamma-Ray Bursts Are Different
• Spectral lag of gamma-ray burst caused by the intrinsic spectral evolution and the curvature effect
• Spectral Lag Relations in GRB Pulses Detected with HETE-2

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