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INVESTIGATING THE PULSAR WIND NEBULA 3C 58 USING EMISSION MODELS
김승종,박재근,안홍준 한국천문학회 2019 Journal of The Korean Astronomical Society Vol.52 No.5
We present IR flux density measurements, models of the broadband SED, and results of SED modeling for the Pulsar Wind Nebula (PWN) 3C 58. We find that the Herschel flux density seems to be slightly lower than suggested by interpolation of previous measurements in nearby wavebands, implying that there may be multiple electron populations in 3C 58. We model the SED using a simple stationary one-zone and a more realistic time-evolving multi-zone scenario. The latter includes variations of ow properties in the PWN (injected energy, magnetic field, and bulk speed), radiative energy losses, adiabatic expansion, and diffusion, similar to previous PWN models. From the modeling, we find that a PWN age of 2900-5400 yrs is preferred and that there may be excess emission at ~ 1011 Hz. The latter may imply multiple populations of electrons in the PWN.