125 citations · 956 across the 20 of their papers we have counts for
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astro-ph.HE2013★ 43 cited
A helical jet model for OJ287
Mauri Valtonen, Pauli Pihajoki
Context. OJ287 is a quasar with a quasi-periodic optical light curve, with the periodicity observed for over 120 years. This has lead to a binary black hole model as a common expla…
astro-ph.HE2013★ 53 cited
Short time-scale periodicity in OJ 287
Pauli Pihajoki, Mauri Valtonen, Stefano Ciprini
We have studied short-term variations of the blazar OJ 287, suspected to host a supermassive black hole binary. In this study, we use a two-season optical R-band dataset from 2004-…