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- W2023668546 abstract "We report four years of radio and X-ray monitoring of the Type IIn supernova SN 2006jd at radio wavelengths with the Very Large Array, Giant Metrewave Radio Telescope and Expanded Very Large Array; at X-ray wavelengths with {em Chandra}, {em XMM-Newton} and {em Swift}-XRT. We assume that the radio and X-ray emitting particles are produced by shock interaction with a dense circumstellar medium. The radio emission shows an initial rise that can be attributed to free-free absorption by cool gas mixed into the nonthermal emitting region; external free-free absorption is disfavored because of the shape of the rising light curves and the low gas column density inferred along the line of sight to the emission region. The X-ray luminosity implies a preshock circumstellar density $sim 10^6$ cm$^{-3}$ at a radius $rsim 2times 10^{16}$ cm, but the column density inferred from the photoabsorption of X-rays along the line of sight suggests a significantly lower density. The implication may be an asymmetry in the interaction. The X-ray spectrum shows Fe line emission at 6.9 keV that is stronger than is expected for the conditions in the X-ray emitting gas. We suggest that cool gas mixed into the hot gas plays a role in the line emission. Our radio and X-ray data both suggest the density profile is flatter than $r^{-2}$ because of the slow evolution of the unabsorbed emission." @default.
- W2023668546 created "2016-06-24" @default.
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- W2023668546 date "2012-08-01" @default.
- W2023668546 modified "2023-10-15" @default.
- W2023668546 title "RADIO AND X-RAY OBSERVATIONS OF SN 2006jd: ANOTHER STRONGLY INTERACTING TYPE IIn SUPERNOVA" @default.
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- W2023668546 doi "https://doi.org/10.1088/0004-637x/755/2/110" @default.
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