activity
19972026
most citedA massive binary black-hole system in OJ287 and a test of general relativity

416 citations · 2.1k across the 34 of their papers we have counts for

collaborators

35 papers

astro-ph.HE2026

Multi-band optical photometric variability of the blazar OJ 287 from 2015 to 2025

Alok C. Gupta, Karan Dogra, Mark Kidger +101

We present the most densely sampled multi-band optical photometric observations of the peculiar BL Lacertae object OJ 287 from 2015 to 2025 with a focus on its optical activity on…

astro-ph.IM2024★ 13 cited

The PLATO Mission

Heike Rauer, Conny Aerts, Juan Cabrera +842

PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large numb…

astro-ph.GA2022★ 5 cited

Host galaxy magnitude of OJ 287 from its colours at minimum light

Mauri J. Valtonen, Lankeswar Dey, S. Zola +54

OJ 287 is a BL Lacertae type quasar in which the active galactic nucleus (AGN) outshines the host galaxy by an order of magnitude. The only exception to this may be at minimum ligh…

astro-ph.EP2022★ 19 cited

Water, hydrogen cyanide, carbon monoxide, and dust production from distant comet 29P/Schwassmann-Wachmann 1

D. Bockelée-Morvan, N. Biver, C. A. Schambeau +13

29P/Schwassmann-Wachmann 1 is a distant Centaur/comet, showing persistent CO-driven activity and frequent outbursts. We used the Herschel space observatory in 2010, 2011, and 2013…

astro-ph.GA2020★ 11 cited

The host galaxy of OJ 287 revealed by optical and near-infrared imaging

K. Nilsson, J. Kotilainen, M. Valtonen +11

The BL Lacertae object OJ 287 (z = 0.306) has unique double-peaked optical outbursts every ~12 years, and it presents one of the best cases for a small-separation binary supermassi…

astro-ph.HE2020★ 70 cited

Spitzer Observations of the Predicted Eddington Flare from Blazar OJ 287

Seppo Laine, Lankeswar Dey, Mauri Valtonen +25

Binary black hole (BH) central engine description for the unique blazar OJ 287 predicted that the next secondary BH impact-induced bremsstrahlung flare should peak on 2019 July 31.…