MZ
Michal Zajaček
astro-ph.GAastro-ph.HEgr-qcastro-ph.COastro-ph.SRhep-phhep-thastro-ph.IMastro-ph.EPphysics.atom-ph
On Valency
published · living versionsW_jffd3muu·v1 · currentpublished
Binary Dynamics and Mergers in a Stellar Disk and the Formation of Dusty Objects in the Galactic Center
with Myank Singhal, Ladislav Šubr, Jaroslav Haas, Florian Peißker
1 version
W_55unj9yj·v1published
Preprints & journals
114 papers in the corpus · 2013–2026Low-angular-momentum accretion shocks can power weak-to-moderate X-ray flares from SgrA*2609.04145v1 · Samik Mitra, Bożena Czerny, Michal Zajacek et al.2026 · 0 citationsarXiv
What is the reason for the lack of cool evolved stars near the center of the Galaxy?2608.25253v1 · Petr Kurfurst, Michal Zajacek, Norbert Werner et al.2026 · 0 citationsarXiv
Observations of X-ray quasi-periodic eruptions2607.15359v2 · Thomas Wevers, Joheen Chakraborty, Erwan Quintin et al.2026 · 0 citationsarXiv
Radiation-hydrodynamics of star-disc collisions: From system parameters to outflows and lightcurves2607.05508v2 · Taj Jankovic, Sergey Karpov, Michal Zajacek et al.2026 · 0 citationsarXiv
HALO II: Constraining Hubble constant through continuum delay fitting of Fairall 92606.27195v1 · Amit Kumar Mandal, Francisco Pozo Nunez, Vikram Kumar Jaiswal et al.2026 · 0 citationsarXiv
Traversing the Galactic Centre in space and time2606.24706v3 · Michal Zajacek, Bożena Czerny, Martin Mondek et al.2026 · 0 citationsNature Astronomy, Published online: 07 September 2026
The Nearest Galactic Nucleus: Studying the Galactic Centre with SKA-Mid2606.25051v3 · Rainer Schoedel, Antxon Alberdi, Izaskun Jim'enez-Serra et al.2026 · 0 citationsarXiv
Eclipses of Nearby Millimeter-bright Galactic Nuclei by Stars in Nuclear Star Clusters2605.15145v4 · Michal Zajacek2026 · 0 citationsThe Astrophysical Journal, Volume 1009, Number 1, 2026
Tidal disruption of a low-mass star in an active galactic nucleus as the origin of the PS16dtm outburst2605.13799v1 · Marzena 'Sniegowska, Bożena Czerny, Michal Zajacek et al.2026 · 0 citationsarXiv
The complex relationships between AGN, bars and bulges2603.28208v1 · Izzy L. Garland, Henry Best, Lucy F. Fortson et al.2026 · 1 citationA&A 709, A48 (2026)
Evolution of Quasi-Periodic Eruptions in the post-TDE Accretion Disk Perturbed by an Orbiting Star2603.28380v2 · Martin Mondek, Michal Zajacek, Henry Best et al.2026 · 0 citationsA&A, Volume 709, May 2026
Supernova interactions with aspherical circumstellar material I: calculations of light curves, AB magnitudes, spectra, and polarisation2601.15428v2 · Petr Kurfurst, Georgi Bless, Jakub Fis'ak et al.2026 · 0 citationsarXiv
HALO I: Photometric continuum reverberation mapping of Fairall 92512.13296v2 · Amit Kumar Mandal, Francisco Pozo Nunez, Vikram Kumar Jaiswal et al.2025 · 0 citationsarXiv
Standardizing reverberation-mapped H active galactic nuclei using time-averaged radiusluminosity relations with 5100\,Å\,, broad H, and narrow \OIII\ luminosities2512.13345v1 · Shulei Cao, Amit Kumar Mandal, Michal Zajacek et al.2025 · 0 citationsarXiv
Closing the gap: Follow-up observations of peculiar dusty objects close to Sgr A* using ERIS2511.22761v1 · F. Pei\ssker, M. Zajacek, V. Karas et al.2025 · 2 citationsarXiv
Standardizing a larger, higher-quality, homogeneous sample of reverberation-mapped H active galactic nuclei using the broad-line region radius-luminosity relation2506.17422v2 · Shulei Cao, Amit Kumar Mandal, Michal Zajacek et al.2025 · 0 citationsarXiv
Compact stellar systems hosting an intermediate mass black hole: magnetohydrodynamic study of inflow-outflow dynamics2504.21640v2 · Mat'us Labaj, Sean M. Ressler, Michal Zajacek et al.2025 · 4 citationsA&A 702, A233 (2025)
Non-orbital particle trapping in binary black holes through dynamic stability2503.17841v2 · Ali Kurmus, Michal Zajacek, Greg Kestin et al.2025 · 2 citationsClass. Quantum Grav. 42 115017 (2025)
High-cadence observations of galactic nuclei by the future two-band UV-photometry mission QUVIK2501.19365v2 · Michal Zajacek, Norbert Werner, Henry Best et al.2025 · 3 citationsarXiv
Standardizing reverberation-mapped H and H active galactic nuclei using radius--luminosity relations involving monochromatic and broad H luminosities2412.19665v2 · Shulei Cao, Amit Kumar Mandal, Michal Zajacek et al.2024 · 0 citationsarXiv
A binary system in the S cluster close to the supermassive black hole Sagittarius A.39690145 · Peißker, Florian, Zajaček, Michal, Labadie, Lucas et al.2025 · 22 citationsNature communications. 2024;15(1):10608
Discovery of a Dense Association of Stars in the Vicinity of the Supermassive Black Hole Sgr A*2411.08970v1 · S. Elaheh Hosseini, Andreas Eckart, Michal Zajacek et al.2024 · 2 citationsThe Astrophysical Journal, Volume 975, Issue 2, id.261, 15 pp., 2024
Repeated Partial Tidal Disruptions and Quasi-Periodic Eruptions in SwJ023017.0+2836032411.05948v1 · Dheeraj Pasham, Eric Coughlin, Chris Nixon et al.2024 · 0 citationsarXiv
Repeating transients in galactic nuclei: confronting observations with theory2411.04592v1 · Petra Sukov'a, Francesco Tombesi, Dheeraj R. Pasham et al.2024 · 0 citationsarXiv
Alive and Strongly Kicking: Stable X-ray Quasi-Periodic Eruptions from eRO-QPE2 over 3.5 Years2411.00289v1 · Dheeraj Pasham, Shubham Kejriwal, Eric Coughlin et al.2024 · 2 citationsarXiv
IceCube AGN Neutrino candidate PKS 1717+177: Dark deflector bends nuclear jet2410.18184v1 · S. Britzen, A.B. Kovacevi'c, M. Zajacek et al.2024 · 6 citationsarXiv
Revealing EMRI/IMRI candidates with quasiperiodic ultrafast outflows2410.12090v3 · Michal Zajacek, Petra Sukov'a, Vladim'ir Karas et al.2024 · 1 citationarXiv
Galactic center G objects as dust-enshrouded stars near the supermassive black hole2410.00304v2 · Michal Zajacek, Monika Pikhartov'a, Florian Peissker2024 · 0 citationsarXiv
Red giant - jet collisions in galactic nuclei I: 3D hydrodynamical model of a few stellar orbits2409.17773v2 · Petr Kurfurst (MUNI, Brno), Michal Zajacek (MUNI et al.2024 · 5 citationsMonthly Notices of the Royal Astronomical Society, Volume 540, Issue 2, pp. 1586-1607, 22 pp., 2025
The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. II. Kinematic structure2407.15800v1 · Florian Pei\ssker, Michal Zajacek, Matus Labaj et al.2024 · 8 citations2024 ApJ 970 74
Candidate Young Stellar Objects in the S-cluster: The Kinematic Analysis of a Sub-population of the Low-mass G-objects close to Sgr A*2406.09916v1 · Florian Pei\ssker, Michal Zajacek, Maria Melamed et al.2024 · 7 citationsarXiv
Lense-Thirring precession after a supermassive black hole disrupts a star.38778113 · Pasham, Dheeraj R, Zajaček, Michal, Nixon, C J et al.2024 · 35 citationsNature. 2024;630(8016):325-328
Repeating Nuclear Transients as Candidate Electromagnetic Counterparts of LISA Extreme Mass Ratio Inspirals2404.00941v2 · Shubham Kejriwal, Vojtech Witzany, Michal Zajacek et al.2024 · 19 citationsarXiv
A case for a binary black hole system revealed via quasi-periodic outflows.38536930 · Pasham, Dheeraj R, Tombesi, Francesco, Suková, Petra et al.2024 · 31 citationsScience advances. 2024;10(13):eadj8898
Alive but Barely Kicking: News from 3+ years of Swift and XMM-Newton X-ray Monitoring of Quasi-Periodic Eruptions from eRO-QPE12402.09690v1 · Dheeraj R. Pasham, Eric R. Coughlin, Michal Zajacek et al.2024 · 22 citationsarXiv
New theoretical Fe II templates for bright quasars2401.18052v2 · Ashwani Pandey, Mary Loli Mart'inez-Aldama, Bożena Czerny et al.2024 · 7 citationsarXiv
MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows2312.04149v1 · Petra Sukov'a, Michal Zajacek, Vladim'ir Karas2023 · 0 citationsarXiv
A Collection of German Science Interests in the Next Generation Very Large Array2311.10056v2 · M. Kadler, D. A. Riechers, J. Agarwal et al.2023 · 0 citationsarXiv
The JWST Galactic Center Survey -- A White Paper2310.11912v8 · Rainer Schoedel, Steve Longmore, Jonny Henshaw et al.2023 · 6 citationsarXiv
The Evaporating Massive Embedded Stellar Cluster IRS 13 Close to Sgr A*. I. Detection of a rich population of dusty objects in the IRS 13 cluster2310.06156v1 · Florian Pei\ssker, Michal Zajacek, Lauritz Thomkins et al.2023 · 12 citationsarXiv
Broad-line region in active galactic nuclei: Dusty or dustless?2310.05089v2 · Ashwani Pandey, Bozena Czerny, Swayamtrupta Panda et al.2023 · 12 citationsA&A 680, A102 (2023)
UV Fe II emission model of HE 0413-4031 and its relation to broad-line time delays2310.03544v3 · Michal Zajacek, Swayamtrupta Panda, Ashwani Pandey et al.2023 · 9 citationsAstronomy & Astrophysics, Volume 683, id.A140, 18 pp., 2024
Effects of heterogeneous data sets and time-lag measurement techniques on cosmological parameter constraints from MgII and CIV reverberation-mapped quasar data2309.16516v2 · Shulei Cao, Michal Zajacek, Bożena Czerny et al.2023 · 11 citationsMonthly Notices of the Royal Astronomical Society, Volume 528, Issue 4, March 2024, Pages 6444-6469
X-ray eruptions every 22 days from the nucleus of a nearby galaxy2309.03011v2 · Muryel Guolo (JHU), Dheeraj R. Pasham, Michal Zajacek et al.2023 · 66 citationsNat Astron (2024),
Precession-induced Variability in AGN Jets and OJ 2872307.05838v2 · Silke Britzen, Michal Zajacek, Gopal-Krishna et al.2023 · 43 citationsThe Astrophysical Journal (2023), Volume 951, Issue 2, id.106, 38 pp
Science with a small two-band UV-photometry mission I: Mission description and follow-up observations of stellar transients2306.15080v2 · N. Werner, J. R'ipa, C. Thone et al.2023 · 24 citationsarXiv
Science with a small two-band UV-photometry mission II: Observations of stars and stellar systems2306.15081v2 · J. Krticka, J. Ben'acek, J. Budaj et al.2023 · 10 citationsarXiv
Science with a small two-band UV-photometry mission III: Active Galactic Nuclei and nuclear transients2306.15082v2 · M. Zajacek, B. Czerny, V. K. Jaiswal et al.2023 · 12 citationsarXiv
Effect of extinction on quasar luminosity distances determined from UV and X-ray flux measurements2305.08179v3 · Michal Zajacek, Bożena Czerny, Narayan Khadka et al.2023 · 17 citationsThe Astrophysical Journal, 961:229 (18pp), 2024 February 1
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 regions2304.13763v2 · Raj Prince, Michal Zajacek, S. Panda et al.2023 · 13 citationsA&A 678, A189 (2023)
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