Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-07-16
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures, in Proc. 27th ICRC, Hamburg, 07-15 August 2001, OG164
Scientific paper
The non-detection of pulsed sub-TeV gamma-rays from EGRET pulsars proves that the EGRET pulsed spectra of all gamma-ray pulsars should terminate at energies below a few hundred GeV. The spectrum of a typical integrated pulse profile predicted by the polar cap model resemble typically a hard component, followed by a super exponential cutoff between 1 MeV (PSR B1509-58) and tens of GeV (e.g. Crab, PSR B1951+32 etc). Using a topological trigger for the H.E.S.S. Telescope System in the non-imaging mode, we show that H.E.S.S. should be able to detect pulsed emission from PSR B1706-44 within a few hours if the cutoff energy is above 30 GeV as suggested by EGRET observations. The recently detected radio pulsar PSR J1837-0604 (pulsar period: 96 ms) associated with the unidentified EGRET source GeV J1837-06010 should also be detectable within a few hours if the source is pulsed and if its cutoff is similar to that of PSR B1706-44. H.E.S.S. should even be able to image middle-aged, low-multiplicity pulsars for which the mean photon energy is expected to be well above 10 GeV. Such observations should provide important constraints on the final evolutionary status of gamma-ray pulsars and millisecond pulsars in general.
de Jager Ocker C.
Konopelko Alex
Raubenheimer Christo B.
Visser B.
No associations
LandOfFree
Limits on Pulsar Parameters for Pulsed detections with H.E.S.S does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Limits on Pulsar Parameters for Pulsed detections with H.E.S.S, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits on Pulsar Parameters for Pulsed detections with H.E.S.S will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-472583