On the masses of OJ287 black holes

@inproceedings{Valtonen2012OnTM,
  title={On the masses of OJ287 black holes},
  author={Mauri J. Valtonen and Stefano Ciprini and Harry J. Lehto},
  year={2012}
}
Two multifrequency campaigns were carried out on OJ287 in 2005: in April when it was in its pre-outburst state, and in November during the main 12 yr cycle outburst. The wavelength coverage was from radio to X-rays. In the optical-to-ultraviolet range, the differential spectrum between the observations has a bremsstrahlung spectral shape, consistent with gas at 3 × 10 5 K temperature. Our result supports the hydrogen column density of the OJ287 host galaxy of ∼9.3 × 10 20 cm −2 , the average… CONTINUE READING

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Far-infrared photometry of OJ 287 with the Herschel Space Observatory

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