INTEGRAL observations of PSR B0540-69
| dc.creator | Slowikowska, A. | |
| dc.creator | Kanbach, G. | |
| dc.creator | Borkowski, J. | |
| dc.creator | Becker, W. | |
| dc.date | 2007-01-10 | |
| dc.date.accessioned | 2026-07-07T07:39:33Z | |
| dc.date.available | 2026-07-07T07:39:33Z | |
| dc.description | PSR B0540-69 is often called an extragalactic 'twin' of the Crab pulsar in the Large Magellanic Cloud. The pulsar is embedded in a synchrotron nebula in the center of SNR 0540-69.3. It was discovered with the Einstein satellite with P~50 ms, spin-down age of ~1500 years and a spin-down luminosity of ~10^38 erg/s. It has since been detected with all major X-ray telescopes. At X-ray energies up to ~40 keV the latest observations were reported from RXTE and from INTEGRAL (only spectrum) in the context of a survey of the LMC. Optical pulsed emission and faint radio emission have also been found from PSR B0540-69. The INTEGRAL analysis presented here is based on observations of the LMC obtained in Jan. 2003 and Jan. 2004 with a total exposure of ~1.5 Ms. In the mosaic maps from the total exposure (JEM-X and IBIS/ISGRI) a source at the location of PSR B0540-69 is clearly visible up to energies of ~200 keV. After barycentric correction and determination of the pulsar phases, based on theephemeris available from contemporaneous RXTE data, the lightcurves show the characteristic shape of a broad pulse up into the 40-100 keV band. At higher energies no significant pulsation is detectable. We derive the spectrum of the total source from the ISGRI data. The photon spectrum can be fitted with a power law of index 2.22, which is compatible with the result found by Goetz et al., 2006. | |
| dc.description | Proceedings of the 363. WE-Heraeus Seminar on: Neutron Stars and Pulsars (Posters and contributed talks) Physikzentrum Bad Honnef, Germany, May.14-19, 2006, eds. W.Becker, H.H.Huang, MPE Report 291, pp.44-51 | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0701296 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0701296 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/121489 | |
| dc.subject | Astrophysics | |
| dc.title | INTEGRAL observations of PSR B0540-69 | |
| dc.type | text |