activity
20222026
most citedConstraining scalar-tensor theories using neutron star mass and radius measurements

19 citations · 28 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2026

Circumbinary Discs as the Origin of Circumstellar Material around Interacting H-poor Supernovae and Fast Blue Optical Transients

Ryotaro Chiba, Semih Tuna, Brian D. Metzger +1

Around 10 % of hydrogen-poor supernovae explode inside compact ( cm), massive () circumstellar material (CSM), signalling an episode of e…

astro-ph.HE2025★ 2 cited

Super-Eddington Chimneys: On the Cooling Evolution of Tidal Disruption Event Envelopes

Semih Tuna, Brian D. Metzger, Yan-Fei Jiang +1

The formation of a compact accretion disk following a tidal disruption event (TDE) requires that the shocked stellar debris cool efficiently as it settles toward the black hole. Wh…

gr-qc2025★ 7 cited

Nature of phase transitions and metastability in scalar-tensor theories

Kıvanç İ. Ünlütürk, Semih Tuna, Oğuzhan K. Yamak +1

Compact stars above a critical stellar mass develop large scalar fields in some scalar-tensor theories. This scenario, called spontaneous scalarization, has been an intense topic o…

astro-ph.HE2025

Time-Dependent Radiation Transport Simulations of Infrared Echoes from Dust-Shrouded Luminous Transients

Semih Tuna, Brian D. Metzger, Yan-Fei Jiang +1

A wide range of stellar explosions, including supernovae (SNe), tidal disruption events (TDE), and fast blue optical transients (FBOT), can occur in dusty environments initially op…

astro-ph.HE2023

Long-Term Evolution of Massive-Star Post-Common Envelope Circumbinary Disks and the Environments of Fast Luminous Transients

Semih Tuna, Brian D. Metzger

If the envelope of a massive star is not entirely removed during common envelope (CE) interaction with an orbiting compact (e.g., black hole [BH] or neutron star [NS]) companion, t…

gr-qc2022★ 19 cited

Constraining scalar-tensor theories using neutron star mass and radius measurements

Semih Tuna, Kıvanç İ. Ünlütürk, Fethi M. Ramazanoğlu

We use neutron star mass and radius measurements to constrain the spontaneous scalarization phenomenon in scalar-tensor theories using Bayesian analysis. Neutron star structures in…