activity
20232026
most citedOort cloud perturbations as a source of hyperbolic Earth impactors

20 citations · 82 across the 26 of their papers we have counts for

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Showing 2025Show all

12 papers · 1 filter

astro-ph.HE2025

EP250827b/SN 2025wkm: An X-ray Flash-Supernova Powered by a Central Engine and Circumstellar Interaction

Gokul P. Srinivasaragavan, Dongyue Li, Xander J. Hall +100

We present the discovery of EP250827b/SN 2025wkm, an X-ray Flash (XRF) discovered by the Einstein Probe (EP), accompanied by a broad-line Type Ic supernova (SN Ic-BL) at $z = 0.119…

astro-ph.EP2025

Spectrophotometric evidence for a metal-bearing, carbonaceous, and pristine interstellar comet 3I/ATLAS

Josep M. Trigo-Rodríguez, Maria Gritsevich, Jürgen Blum

3I/ATLAS is only the second confirmed cometary object known to enter the Solar System from interstellar space. Cosmogonic considerations suggest that this body may possess relative…

astro-ph.EP2025

Assessing the metal and rare earth element mining potential of undifferentiated asteroids through the study of carbonaceous chondrites

Josep M. Trigo-Rodríguez, Pau Grèbol-Tomàs, Jordi Ibáñez-Insa +2

Undifferentiated asteroids, particularly the parent bodies of carbon-rich chondrite groups, might be promising candidates for future space resource utilization due to their primiti…

astro-ph.HE2025★ 2 cited

Exploring the connection between compact object mergers and fast X-ray transients: The cases of LXT 240402A and EP250207b

R. L. Becerra, Yu-Han Yang, Eleonora Troja +29

The connection between compact object mergers and some extragalactic fast X-ray transients (FXRTs) has long been hypothesized, but never ultimately established. In this work, we in…

astro-ph.HE2025

Deciphering the Physical Origin of GRB 240825A: A Long GRB Lacking a Bright Supernova

Rahul Gupta, Judith L. Racusin, R. Sanchez-Ramirez +54

We present a comprehensive multiwavelength analysis of GRB 240825A, a bright gamma-ray burst (GRB) detected by Fermi and Swift, with a prompt duration ( 4 sec in…

astro-ph.EP2025★ 1 cited

Lunar exosphere dynamics at the north pole following Perseid 2009 meteoroid impacts

Alexey A. Berezhnoy, Maria Gritsevich, Ekaterina A. Feoktistova +3

Observations of the lunar exosphere provide valuable insights into dynamic processes affecting the Moon, such as meteoroid bombardment. The Chamberlain model was employed to estima…

astro-ph.HE2025★ 13 cited

Spectral Hardening Reveals Afterglow Emergence in Long-Duration Fast X-ray Transients: A Case Study of GRB 250404A/EP250404a

Yi-Han Iris Yin, Yuan Fang, Bin-Bin Zhang +56

The prompt emission and afterglow phases of gamma-ray bursts (GRBs) have been extensively studied, yet the transition between these two phases remains inadequately characterized du…

astro-ph.EP2025★ 5 cited

Inferring Fireball Velocity Profiles and Characteristic Parameters of Meteoroids from Incomplete Datasets

Eloy Peña-Asensio, Maria Gritsevich

Extracting additional information from old or incomplete fireball datasets remains a challenge. To address missing point-by-point observations, we introduce a method for estimating…

astro-ph.HE2025★ 5 cited

The soft X-ray transient EP241021a: A cosmic explosion with a complex off-axis jet and cocoon from a massive progenitor

Giulia Gianfagna, Luigi Piro, Gabriele Bruni +22

X-ray flashes (XRFs) are fast X-ray transients thought to be softer analogs of gamma-ray bursts (GRBs). With its soft X-ray sensitivity, the Einstein Probe (EP) provides a unique o…

astro-ph.HE2025★ 3 cited

An extremely soft and weak fast X-ray transient associated with a luminous supernova

W. -X. Li, Z. -P. Zhu, X. -Z. Zou +101

Long gamma-ray bursts (LGRBs), including their subclasses of low-luminosity GRBs (LL-GRBs) and X-ray flashes (XRFs) characterized by low spectral peak energies, are known to be ass…

astro-ph.EP2025

Cometary Observations in Light-Polluted Environments: A case study of Interstellar Comet 2I/Borisov

Josep M. Trigo-Rodríguez, Damya Souami, Maria Gritsevich +2

Comets and asteroids have long captured human curiosity, and until recently, all documented examples belonged to our Solar System. That changed with the discovery of the first know…

astro-ph.EP2025★ 14 cited

Mass of particles released by comet 12P/Pons-Brooks during 2023-2024 outbursts

Maria Gritsevich, Marcin Wesołowski, Alberto J. Castro-Tirado

During its most recent return, comet 12P/Pons-Brooks experienced 14 well-documented outbursts, observed between June 13, 2023, and April 2024, at heliocentric distances ranging fro…