activity
20182025
most citedOn the charge of the Galactic centre black hole

153 citations · 339 across the 23 of their papers we have counts for

collaborators
Showing 2023Show all

5 papers · 1 filter

astro-ph.GA2023★ 9 cited

UV Fe II emission model of HE 0413-4031 and its relation to broad-line time delays

Michal Zajaček, Swayamtrupta Panda, Ashwani Pandey +11

Fe II emission is a well-known contributor to the UV spectra of active galactic nuclei and the modeling of this part may affect the results obtained for the MgII emiss…

astro-ph.CO2023★ 12 cited

Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from MgII and CIV reverberation-mapped quasar data

Shulei Cao, Michal Zajaček, Bożena Czerny +2

Previously, we demonstrated that MgII and CIV reverberation-mapped quasars (RM QSOs) are standardizable and that the cosmological parameters inferred using the broad-line region ra…

astro-ph.GA2023★ 18 cited

Effect of extinction on quasar luminosity distances determined from UV and X-ray flux measurements

Michal Zajaček, Bożena Czerny, Narayan Khadka +4

In Khadka et al. (2023), a sample of X-ray-detected reverberation-mapped quasars was presented and applied for the comparison of cosmological constraints inferred using two well-es…

astro-ph.GA2023★ 13 cited

Wavelength-resolved reverberation mapping of intermediate redshift quasars HE 0413-4031 and HE 0435-4312: Dissecting Mg II, optical Fe II, and UV Fe II emission regions

Raj Prince, Michal Zajaček, S. Panda +24

We present the wavelength-resolved reverberation mapping (RM) of combined MgII and UV FeII broad-line emissions for two intermediate redshifts (z1), luminous quasars - HE 041…

astro-ph.GA2023

Ram-pressure stripped radio tail and two ULXs in the spiral galaxy HCG 97b

Dan Hu, Michal Zajaček, Norbert Werner +11

We report LOFAR and VLA detections of extended radio emission in the spiral galaxy HCG 97b, hosted by an X-ray bright galaxy group. The extended radio emission detected at 144 MHz,…