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20212026
most citedPolarimetry and Astrometry of NIR Flares as Event Horizon Scale, Dynamical Probes for the Mass of Sgr A*

93 citations · 289 across the 24 of their papers we have counts for

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Showing 2023Show all

10 papers · 1 filter

astro-ph.GA2023

Analysis of Kozai Cycles in Equal-Mass Hierarchical Triple Supermassive Black Hole Mergers in the Presence of a Stellar Cluster

Wei Hao, M. B. N. Kouwenhoven, Rainer Spurzem +3

Supermassive black holes (SMBHs) play an important role in galaxy evolution. Binary and triple SMBHs can form after galaxy mergers. A third SMBH may accelerate the SMBH merging pro…

astro-ph.GA2023

Using the motion of S2 to constrain vector clouds around SgrA*

GRAVITY Collaboration, A. Foschi, R. Abuter +53

The dark compact object at the centre of the Milky Way is well established to be a supermassive black hole with mass , but the nature…

gr-qc2023★ 48 cited

Waveform Modelling for the Laser Interferometer Space Antenna

LISA Consortium Waveform Working Group, Niayesh Afshordi, Sarp Akçay +144

LISA, the Laser Interferometer Space Antenna, will usher in a new era in gravitational-wave astronomy. As the first anticipated space-based gravitational-wave detector, it will exp…

astro-ph.SR2023

The look of high-velocity red-giant star collisions

Luc Dessart, Taeho Ryu, Pau Amaro Seoane +1

High-velocity stellar collisions driven by a supermassive black hole (BH) or BH-driven disruptive collisions, in dense, nuclear clusters can rival the energetics of supergiant star…

astro-ph.GA2023★ 93 cited

Polarimetry and Astrometry of NIR Flares as Event Horizon Scale, Dynamical Probes for the Mass of Sgr A*

The GRAVITY Collaboration, R. Abuter, N. Aimar +66

We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO's Very Large Telescope Interferometer…

astro-ph.HE2023

Underluminous tidal disruptions

Pau Amaro Seoane

We have evidence of X-ray flares in several galaxies consistent with a a star being tidally disrupted by a supermassive black hole (MBH). If the star starts on a nearly parabolic o…

astro-ph.HE2023★ 1 cited

Colliding red giants in galactic nuclei: Shocks, jets, impact on the ISM, X- and gamma-rays, neutrinos, fusion ignition and afterglow

Pau Amaro Seoane

In galactic nuclei, stellar densities are so high that stars can physically collide with each other. In this work we focus on the collision of red giants and in particular on the f…

astro-ph.HE2023

Collisions of red giants in galactic nuclei

Taeho Ryu, Pau Amaro Seoane, Andrew M. Taylor +1

In stellar-dense environments, stars can collide with each other. For collisions close to a supermassive black hole (SMBH), the collisional kinetic energy can be so large that the…

astro-ph.HE2023★ 5 cited

Massive Black Hole Binaries as LISA Precursors in the Roman High Latitude Time Domain Survey

Zoltán Haiman, Chengcheng Xin, Tamara Bogdanović +27

With its capacity to observe faint active galactic nuclei (AGN) out to redshift , Roman is poised to reveal a population of b…

astro-ph.GA2023★ 34 cited

Where intermediate-mass black holes could hide in the Galactic Centre: A full parameter study with the S2 orbit

The GRAVITY Collaboration, O. Straub, M. Bauböck +59

In the Milky Way the central massive black hole, SgrA*, coexists with a compact nuclear star cluster that contains a sub-parsec concentration of fast-moving young stars called S-st…