activity
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 astro-ph.HEShow all

7 papers · 1 filter

astro-ph.HE2026

The Crimson Kiss of Two Giants: Helium Detonation and High-Energy Neutrino Production

Cecilia Romero Rodríguez, Pau Amaro Seoane

The coalescence of degenerate helium cores during red giant collisions - a process we term erythrohenosis - introduces a novel class of transient astrophysical sources of high-ener…

astro-ph.HE2026

Erythrohenosis -- The crimson chronicles of two giants

Pau Amaro Seoane

We investigate erythrohenosis -- the collision and merger of two red giants -- establishing an end-to-end model for this fundamental evolutionary channel in dense stellar environme…

astro-ph.HE2025

Illuminating gravitational wave sources with Sgr A* flares

Pau Amaro Seoane

Sagittarius A* exhibits daily energetic flares characterized by non-thermal emission in the infrared and X-ray bands. While the underlying accretion flow is a Radiatively Inefficie…

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…