15 Citations
Central engine of the highest redshift blazar
- PhysicsAstronomy & Astrophysics
- 2022
We present the results of a new LUCI / Large Binocular Telescope near-infrared (NIR) spectroscopic observation of PSO J030947.49 + 271757.31 (hereafter PSO J0309 + 27), the highest redshift blazar…
Radio evidence for binary super massive black holes
- Physics
- 2016
I present examples of radio AGN with binary nuclei which provide the direct radio evidence for binary Super Massive Black Holes (SMBH) driving the AGN activity. There is also other evidence for…
Radio evidence for binary super massive black holes
- PhysicsProceedings of the International Astronomical Union
- 2014
Abstract I present examples of radio AGN with binary nuclei which provide the direct radio evidence for binary Super Massive Black Holes (SMBH) driving the AGN activity. There is also other evidence…
UBVI CCD photometry of Berkeley 55 open cluster
- Physics
- 2021
. Fundamental astrophysical parameters have been derived for Berkeley 55 (Be 55) open cluster based on the UBVI charge-coupled device (CCD) photometric data observed using a AZT-22 1.5 m telescope at…
Timescales of the chaos onset in the general relativistic Poynting-Robertson effect
- Physics
- 2021
It has been proved that the general relativistic Poynting-Robertson effect in the equatorial plane of Kerr metric shows a chaotic behavior for a suitable range of parameters. As a further step, we…
$$\varvec{U\!BV\!I}$$ CCD photometry of Berkeley 55 open cluster
- Physics
- 2021
Fundamental astrophysical parameters have been derived for Be 55 open cluster based on UBVI CCD photometric data, observed with the AZT-22 1.5m telescope at Maidanak Astronomical Observatory in…
The M − (cid:2) relation between supermassive black holes and their host galaxies
- Physics
- 2019
Supermassive black holes (SMBHs) are found in the centres of most galaxies. Their masses, and hence their gravitational potentials, are negligible compared with those of the host galaxy. However,…
X-ray sources in Galactic globular clusters and old open clusters
- PhysicsProceedings of the International Astronomical Union
- 2019
Abstract The features and make up of the population of X-ray sources in Galactic star clusters reflect the properties of the underlying stellar environment. Cluster age, mass, stellar encounter rate,…
CCD UBVRI photometry of the open cluster Berkeley 8
- PhysicsTURKISH JOURNAL OF PHYSICS
- 2019
The poorly studied Berkeley 8 (Be8) open cluster is analysed from CCD UBVRI photometric data taken with the 0.90 m telescope at the Sierra Nevada Observatory. The Z = +0.008 PARSEC isochrone gave us…
The $$M-\sigma $$M-σ relation between supermassive black holes and their host galaxies
- PhysicsGeneral Relativity and Gravitation
- 2019
Supermassive black holes (SMBHs) are found in the centres of most galaxies. Their masses, and hence their gravitational potentials, are negligible compared with those of the host galaxy. However,…