activity
20112026
most citedCosmological coupling of nonsingular black holes

34 citations · 54 across the 13 of their papers we have counts for

collaborators

16 papers

astro-ph.HE2026

The (missing) gamma-ray counterparts to EP events

Maria Edvige Ravasio, Ansh Chopra, Peter G. Jonker +23

While the connection of Fast X-ray Transients (FXTs) detected by Einstein Probe (EP) with Gamma-ray Bursts (GRBs) is increasingly compelling, most lack gamma-ray counterparts, leav…

quant-ph2026

Rényi multi-entropy of graph states and the limit

Sriram Akella, Abhijit Gadde

Rényi multi-entropy extends the Rényi entropy to pure states of more than two parties. It is defined by a replica contraction at integer replica number , and the multi-entropy i…

astro-ph.IM2026

GRINTA: a new Probe of the Dynamic Universe

Lorenzo Natalucci, Philippe Laurent, Marica Branchesi +48

Recent observations of the transient sky at all wavelengths are increasingly revealing the importance of the multi-messenger and multi-wavelength approach. The GRINTA (Gamma-Ray IN…

astro-ph.HE2026

X-ray Flares in Gamma-Ray Bursts at High and Very-High-Energies

Pawan Tiwari, Biswajit Banerjee, Gor Oganesyan +5

A significant fraction of GRB early afterglows exhibit fast and bright X-ray flares, discovered by Swift X-ray Telescope. Their rapid temporal variability and spectral evolution ha…

astro-ph.HE2026

Core-Collapse Supernova detections from Einstein Telescope within the Milky Way

I. F. Giudice, A. L. De Santis, M. T. Botticella +6

Core-collapse supernovae are key drivers of galaxy evolution and promising sources of gravitational waves, which provide a unique probe of the physics driving their explosion mecha…

astro-ph.IM2026

Assessing the Impact of Instrumental Requirements on the Scientific Performance of the Einstein Telescope

Ulyana Dupletsa, Francesco Iacovelli, Mikhail Korobko +23

We investigate the relationship between instrumental requirements and the scientific performance of the Einstein Telescope (ET), a third-generation (3G) gravitational-wave (GW) obs…

astro-ph.HE2026

Detectability of Gravitational-wave counterparts of EP-FXTs observed during the O4b LIGO-Virgo-KAGRA Observing Run

Ansh Chopra, Samuele Ronchini, Biswajit Banerjee +5

Fast X-ray transients (FXTs) detected by the Einstein Probe mission have emerged as a rapidly growing class of extragalactic transients, whose physical origin remains uncertain. Co…

astro-ph.GA2026

Pebbles to Gems: Intermediate-mass black holes in the first star clusters

Benedetta Mestichelli, Manuel Arca Sedda, Marta Volonteri +9

The rapid assembly of supermassive black holes (SMBHs) observed at requires efficient seeding mechanisms in the early Universe. Population III (Pop. III) star clusters…

astro-ph.HE2026

Gravitational wave detectability range informed by external messengers

S. Ronchini, A. Chopra, T. Dal Canton +3

A rapid estimate of gravitational-wave (GW) detectability associated with astronomical transients is crucial for optimizing multi-messenger follow-up strategies and for constrainin…

astro-ph.HE2026

Detection of TeV emission during early afterglow from poorly localized GRBs with ground based IACTs

S. Macera, B. Banerjee, M. Seglar-Arroyo +10

Gamma-ray bursts (GRBs) are among the most luminous and rapidly evolving transients in the Universe. While space-based instruments have extended GRB observations up to energies of…

astro-ph.GA2026

Teen TITANS simulations -- I. Inefficient intermediate-mass black hole seeding via stellar collisions in young massive clusters

Benedetta Mestichelli, Sara Rastello, Michela Mapelli +2

Young massive clusters (YMCs) provide favorable environments for frequent stellar collisions, potentially leading to the formation of very massive stars (VMSs) and seeds of interme…

astro-ph.HE2025★ 1 cited

From X-rays to High-Energy Gamma-rays: A Comprehensive Multi-Wavelength Study of Early Gamma-Ray Burst Afterglows

P. Tiwari, B. Banerjee, D. Miceli +8

Gamma-ray Bursts (GRBs) generate powerful relativistic jets that inject a large amount of energy into their surrounding environment, producing blast waves that accelerate particles…

gr-qc2023★ 34 cited

Cosmological coupling of nonsingular black holes

M. Cadoni, A. P. Sanna, M. Pitzalis +4

We show that -- in the framework of general relativity (GR) -- if black holes (BHs) are singularity-free objects, they couple to the large-scale cosmological dynamics. We find that…

astro-ph.HE2023★ 3 cited

The restframe ultraviolet of superluminous supernovae -- I. Potential as cosmological probes

Nandita Khetan, Jeff Cooke, Marica Branchesi

Superluminous supernovae (SLSNe) have been detected to and can be detected to using current and upcoming facilities. SLSNe are extremely UV luminous, and henc…

astro-ph.HE2023★ 11 cited

Flaring activity from magnetic reconnection in BL Lacertae

S. Agarwal, B. Banerjee, A. Shukla +7

The evolution of the spectral energy distribution during flares constrains models of particle acceleration in blazar jets. The archetypical blazar BL Lac provided a unique opportun…

astro-ph.IM2011★ 5 cited

Searching for electromagnetic counterparts of gravitational wave transients

M. Branchesi, A. Klotz, M. Laas-Bourez

A pioneering electromagnetic (EM) observation follow-up program of candidate gravitational wave (GW) triggers has been performed, Dec 17 2009 to Jan 8 2010 and Sep 4 to Oct 20 2010…