14 citations · 22 across the 2 of their papers we have counts for
7 papers
The low-mass end of the Mbh/Mhost relation in quasars
Roberto Decarli, Renato Falomo, Jari K. Kotilainen +3
The Mbh-Mhost relation in quasars has been probed only in a limited parameter space, namely at Mbh~10^9 Msun and Mhost~10^12 Msun. Here we present a study of 26 quasars lying in th…
The host galaxy of the BL Lacertae object 1ES 0647+250 and its imaging redshift
J. K. Kotilainen, T. Hyvönen, R. Falomo +2
Since no spectroscopic redshift is available for the remarkable BL Lac object 1ES 0647+250, we aim to derive an estimate of its distance from the properties of its host galaxy.We o…
Measuring Black Hole Spin in OJ287
M. Valtonen, S. Mikkola, H. J. Lehto +8
We model the binary black hole system OJ287 as a spinning primary and a non-spinning secondary. It is assumed that the primary has an accretion disk which is impacted by the second…
Measuring the spin of the primary black hole in OJ287
M. J. Valtonen, S. Mikkola, D. Merritt +7
The compact binary system in OJ287 is modelled to contain a spinning primary black hole with an accretion disk and a non-spinning secondary black hole. Using Post Newtonian (PN) ac…
The stellar content of low redshift radio galaxies from near-infrared spectroscopy
T. Hyvonen, J. K. Kotilainen, J. Reunanen +1
We present medium spectral resolution near-infrared (NIR) HK-band spectra for 8 low redshift (z<0.06) radio galaxies to study the NIR stellar properties of their host galaxies. As…
The stellar content of low redshift BL Lac host galaxies from multicolour imaging
T. Hyvonen, J. K. Kotilainen, R. Falomo +2
We present B-band imaging of 18 low redshift (z<0.3) BL Lac objects for which their host galaxies were previously resolved in the R-band and the near-infrared H-band. For a subset…