The phase of the radio and X-ray pulses of PSR B1937+21

Simple item page
dc.creatorCusumano, G.
dc.creatorHermsen, W.
dc.creatorKramer, M.
dc.creatorKuiper, L.
dc.creatorLohmer, O.
dc.creatorMassaro, E.
dc.creatorMineo, T.
dc.creatorNicastro, L.
dc.creatorStappers, B. W.
dc.date2003-09-22
dc.date.accessioned2026-07-07T10:47:42Z
dc.date.available2026-07-07T10:47:42Z
dc.descriptionWe present timing and spectral results of PSR B1937+21, the fastest known millisecond pulsar (P about 1.56 ms), observed with RXTE. The pulse profile, detected up to 20 keV, shows a double peak with the main component much stronger than the other. The peak phase separation is 0.526 +/- 0.002 and the pulsed spectrum over the energy range 2--25 keV is well described by a power law with a photon index equal to 1.14 +/- 0.07. We find that the X-ray pulses are closely aligned in phase with the giant pulses observed in the radio band. This results suggest that giant radio pulses and X-ray pulses originate in the same region of the magnetosphere due to a high and fluctuating electron density that occasionally emits coherently in the radio band. The X-ray events, however, do not show any clustering in time indicating that no X-ray flares are produced.
dc.description5 pages, 2 figures, accepted for pubblication in Astronomy and Astrophysics Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0309580
dc.identifierhttp://arxiv.org/abs/astro-ph/0309580
dc.identifierNucl.Phys.Proc.Suppl.132:596-599,2004; Astron.Astrophys.410:L9-L12,2003
dc.identifierdoi:10.1016/j.nuclphysbps.2004.04.101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183624
dc.subjectAstrophysics
dc.titleThe phase of the radio and X-ray pulses of PSR B1937+21
dc.typetext

Files

Collections

arXiv