Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...453..741h&link_type=abstract
Astrophysical Journal v.453, p.741
Astronomy and Astrophysics
Astronomy
32
Methods: Data Analysis, Ism: Individual Alphanumeric: 3C 58, Stars: Pulsars: General, Ism: Supernova Remnants, X-Rays: Ism
Scientific paper
We report on an observation of the youngest Crab-like supernova remnant, 3C 58, undertaken with the ROSAT high-resolution imager The presence of a compact X-ray source at the center of the remnant, suggested by earlier observations, is confirmed, although aspect problems with the Observatory allow us to set only an upper limit on the size of the source of less than 10". We describe an efficient new algorithm for conducting period searches on sparsely sampled data with a relatively small number of photons, and use it to set an upper limit on the pulsed fraction of this source of 50%. We show that the diffuse X-ray emission from the remnant is cospatial with the nonthermal radio emission and constrain the spectral parameters of the X-ray power-law fit. We go on to explore several models for the compact source, showing that Crab-like nonthermal pulses and thermal emission from the entire stellar surface are unlikely to explain the emission. Polar caps heated by magnetospheric discharges could be responsible for the observed X-rays. We conclude that the low X-ray pulsed fraction, inferred emitting area and temperature for the compact source, nebular luminosities in the X-ray and radio bands, and the known age can all be reconciled if P ˜200 ms, Pṡ ˜ 4000 × 10-15 s s-1, and B ˜ 3 × 1013 G, which would make this the highest magnetic field pulsar known.
Becker Robert H.
Helfand David J.
White Richard L.
No associations
LandOfFree
The X-Ray Emission of 3C 58 Revisited 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 The X-Ray Emission of 3C 58 Revisited, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The X-Ray Emission of 3C 58 Revisited will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1179258