activity
20132026
most citedA kilonova as the electromagnetic counterpart to a gravitational-wave source

888 citations · 5.3k across the 107 of their papers we have counts for

collaborators

110 papers

astro-ph.HE2026

The ePESSTO+ census of ZTF nuclear transients. I. What flares in galactic nuclei?

E. Concepción, T. Petrushevska, G. Leloudas +21

Transients in galactic nuclei arise from distinct processes, only some of which trace the supermassive black hole (SMBH). These include tidal disruption events (TDEs), changing-loo…

astro-ph.HE2026

AT 2024qfm: a luminous fast blue optical transient at a redshift of z = 0.2267 identified by Lasair-ZTF

M. Fulton, S. J. Smartt, S. Srivastav +20

Luminous fast blue optical transients (LFBOTs) emit from x-ray to radio wavelengths, epitomised by the discovery of AT 2018cow in a host galaxy at 65 Mpc. In the following eight ye…

astro-ph.HE2026

The type Ia supernova 2023vjh: a peculiar 1991bg-like SN with unusually faint light curves

M. Kopsacheili, L. Galbany, G. Folatelli +32

We present observations of the 1991bg-like type Ia supernova (SN) 2023vjh, associated with the elliptical galaxy MCG+04-10-013. Its light-curve shape parameters ($Δm_{15}(B)=1.89 \…

astro-ph.HE2026

The flash-ionised SN Ibn 2025kzr: H-free CSM formed during a precursor outburst 55 days prior to explosion

S. de Wet, G. Leloudas, D. A. H. Buckley +33

Type Ibn supernovae (SNe) are a class of interacting SNe characterised by narrow helium lines in their spectra. We present an extensive observational dataset of the Type Ibn SN 202…

astro-ph.HE2026

Early Multiwavelength Observations of AT 2026fgk: The Luminous Afterglow to Sub-luminous GRB 260310A, Identified Independently of a Gamma-ray Trigger

K. -R. Hinds, A. Y. Q. Ho, Y. Wagh +103

The origins of sub-luminous (\,erg\,s) gamma-ray bursts (GRBs) associated with broad-lined Type~Ic supernovae (Ic-BL SNe) are poorly u…

astro-ph.HE2026

Probing a new subclass of llGRB-SN transients: Insights from EP250304a and its associated supernova

L. Cotter, A. Martin-Carrillo, R. A. J. Eyles-Ferris +62

With the advent of the Einstein Probe (EP) mission, we are entering a new era in the study of gamma-ray bursts (GRBs), enabling the detection of faint, low-luminosity transients th…

astro-ph.HE2026

The transitional Type Ibn/IIn SN 2022pda, with pre-explosion outbursts and a double-peaked light curve

Y. -Z. Cai, A. Pastorello, R. Chiba +65

We report the results of a photometric and spectroscopic follow-up campaign of the unusual interacting supernova (SN) 2022pda. Precursor variability lasting days is obse…

astro-ph.HE2026

Early interaction signatures and an extended plateau phase in Type II SN 2020aze

B. Ailawadhi, R. Dastidar, K. Misra +27

We present a photometric and spectroscopic analysis of the fast-declining Type II SN 2020aze, observed in optical bands from 2.2 to 137.4 days after explosion. The V-band light cur…

astro-ph.HE2026

ENGRAVE follow-up of a type IIb supernova spatially coincident with the sub-threshold gravitational wave trigger S250818k

K. Ackley, M. T. Botticella, A. Boye +54

The candidate gravitational wave (GW) event S250818k was one of only three non-retracted LIGO-Virgo-KAGRA public alerts issued during the fourth observing run of the network (O4) w…

astro-ph.IM2026

NOMAI : A real-time photometric classifier for superluminous supernovae identification. A science module for the Fink broker

E. Russeil, R. Lunnan, J. Peloton +10

Superluminous supernovae (SLSNe) are one of the most luminous stellar explosions known, yet they remain poorly understood. Because they are intrinsically rare, efficiently identify…

astro-ph.HE2026

Late-Time HST UV Detections Reveal Eruptive Mass Loss and Circumstellar Interaction in a Quarter of Stripped-Envelope Supernovae

C. Fremling, S. Covarrubias, J. Sollerman +19

We present HST WFC3/UVIS F275W near-UV imaging of 91stripped-envelope supernovae (SE SNe; Types IIb, Ib, Ic) from Snapshot program SNAP-16657, observed at phases of 270-1845 days (…

astro-ph.GA2026

HOLISMOKES XX. Lens models of binary lens galaxies with five images of Supernova Winny

L. R. Ecker, A. G. Schweinfurth, R. Saglia +13

Strongly lensed supernovae (SNe) provide a powerful way to study cosmology, SNe and galaxies. Modelling the lens system is key to extracting astrophysical and cosmological informat…

astro-ph.IM2026

Photometric classification of supernovae detected by the Zwicky Transient Facility using noise augmentation

A. Townsend, J. Nordin, M. Kowalski +27

Modern time-domain surveys, such as the Zwicky Transient Facility (ZTF), detect far more extragalactic transients than can be spectroscopically classified. Photometric classificati…

astro-ph.SR2026

Light-Curve and Spectral Properties of Type II Supernovae from the ATLAS survey

K. Ertini, J. P. Anderson, G. Folatelli +22

Type II supernovae (SNe II) are the most common terminal stellar explosions in the Universe. With SNe now being detected within days after explosion, there is growing evidence that…

astro-ph.HE2026

The nearby He-rich superluminous supernova SN 2021bnw during photospheric phases

A. Fiore, A. Kozyreva, L. Yan +40

Aim. We present and interpret the data of the nearby hydrogen-deficient but helium-rich superluminous supernova SN 2021bnw which reached a magnitude of -20.7 at maximum luminosity…

astro-ph.SR2026

Nested, asymmetric H-He circumstellar shells in the Type Icn/Ibn SN 2024abvb

The INTEL Collaboration, J. P. Anderson, C. Aster +17

Interacting transients probe mass loss in the final stages of stellar evolution; however, the geometry and timing of multi-episode mass loss remain poorly constrained. SN 2024abvb…

astro-ph.HE2025

Pan-STARRS follow-up of the gravitational-wave event S250818k and the lightcurve of SN 2025ulz

J. H. Gillanders, M. E. Huber, M. Nicholl +30

Kilonovae are the scientifically rich, but observationally elusive, optical transient phenomena associated with compact binary mergers. Only a handful of events have been discovere…

astro-ph.SR2025★ 3 cited

Massive stars exploding in a He-rich circumstellar medium XII. SN 2024acyl: A fast, linearly declining Type Ibn supernova with early flash-ionisation features

Y. -Z. Cai, A. Pastorello, K. Maeda +63

We present a photometric and spectroscopic analysis of the Type Ibn supernova (SN) 2024acyl. It rises to an absolute magnitude peak of about -17.58 mag in 10.6 days, and displays a…

astro-ph.HE2025★ 1 cited

Eruptive mass loss less than a year before the explosion of superluminous supernovae. II. A systematic search for pre-explosion eruptions with VLT/X-shooter

A. Gkini, C. Fransson, R. Lunnan +22

We present X-shooter observations of a sample of 21 hydrogen-poor superluminous supernovae (SLSNe-I), spanning a redshift range of z=0.13-0.95, aimed at searching for shells of cir…

astro-ph.HE2025

SN 2021lwz: Another Exotic Luminous and Fast Evolving Optical Stripped Envelope Supernova ?

F. Poidevin, S. L. West, C. M. B. Omand +25

Current large-scale, high-cadence surveys, such as the ZTF, provide detections of new and rare types of transients and supernovae whose physical origins are not well understood. We…

astro-ph.SR2025

Long-term evolution of the SN 2009ip-like transient SN 2016cvk

K. Matilainen, E. Kankare, S. Mattila +21

The interacting transient SN 2016cvk (ASASSN-16jt) is a member of the peculiar SN 2009ip-like events. We present our follow-up data and aim to draw conclusions about the physical n…

astro-ph.HE2025

The radio flare and multi-wavelength afterglow of the short GRB 231117A: energy injection from a violent shell collision

G. E. Anderson, G. P. Lamb, B. P. Gompertz +64

We present the early radio detection and multi-wavelength modeling of the short gamma-ray burst (GRB) 231117A at redshift . The Australia Telescope Compact Array automatic…

astro-ph.HE2025★ 1 cited

EP250207b is not a collapsar fast X-ray transient. Is it due to a compact object merger?

P. G. Jonker, A. J. Levan, Xing Liu +41

Fast X-ray Transients (FXTs) are short-lived extra-galactic X-ray sources. Recent progress through multi-wavelength follow-up of Einstein Probe discovered FXTs has shown that sever…

astro-ph.HE2025★ 8 cited

SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae

M. R. Magee, T. L. Killestein, M. Pursiainen +39

Type Iax supernovae (SNe Iax) are one of the most common subclasses of thermonuclear supernova and yet their sample size, particularly those observed shortly after explosion, remai…