activity
20202026
most citedObservations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631

26 citations · 122 across the 28 of their papers we have counts for

collaborators

28 papers

astro-ph.HE2026

Core-collapse supernovae 2022prr, 2023ucy, and 2024ljc in the luminous infrared galaxy NGC 6745

K. K. Matilainen, E. Kankare, T. Nagao +19

The core-collapse supernovae (CCSNe) 2022prr, 2023ucy, and 2024ljc exploded within the central regions of the nearby luminous infrared galaxy (LIRG) NGC6745. We present our follow-…

astro-ph.IM2026

Characterization of the MUSE NFM PSF as a function of atmospheric conditions: TipTop calibration

Enrico Congiu, Fuyan Bian, Carlo F. Manara +8

The Multi Unit Spectroscopic Explorer (MUSE) achieves exceptional spatial resolution in narrow-field mode (NFM) thanks to the GALACSI adaptive optics (AO) system. However, limitati…

astro-ph.HE2026

SN 2022erq: A Superluminous Thermonuclear Supernova with Escalating Preexplosion Mass Loss

Qian Zhai, Jujia Zhang, Xiaofeng Wang +51

We present a photometric and spectroscopic study of the superluminous Type Ia supernova SN 2022erq. Its early spectra, dominated by iron-group elements with weak intermediate-mass…

astro-ph.GA2026

Exploring the synergies of with MUSE spectroscopy in PHANGS H II regions

Eric Habjan, Kathryn Kreckel, Christopher Faesi +16

Spatially resolved maps of gas-phase metallicity provide key constraints on the chemical enrichment and mixing processes that drive galaxy evolution, but measurements based only on…

astro-ph.HE2026

Late-time evolution of the interacting stripped-envelope supernova 2017dio

C. Humina, C. P. Gutiérrez, H. Kuncarayakti +14

The discovery of stripped-envelope supernovae (SNe) interacting with dense circumstellar medium (CSM) challenges our current understanding of massive star evolution. We present lat…

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.SR2026

AT 2025abao: The fourth luminous red nova in M 31

A. Reguitti, A. Pastorello, G. Valerin +15

We present photometric and spectroscopic observations of the luminous red nova (LRN) AT 2025abao, the fourth discovered in M 31. The LRN, associated to the asymptotic giant branch…

astro-ph.SR2025★ 2 cited

SN 2022ngb: A faint, slowly evolving Type IIb supernova with a low-mass envelope

J. -W. Zhao, S. Benetti, Y. -Z. Cai +35

An extensive photometric and spectroscopic follow-up campaign of the Type IIb SN 2022ngb is presented in the article. Through detailed modeling of this dataset, we aim to constrain…

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

SN 2024cld: unveiling the complex mass-loss histories of evolved supergiant progenitors to core collapse supernovae

T. L. Killestein, M. Pursiainen, R. Kotak +52

Pre-explosion mass loss in supernova (SN) progenitors is a crucial unknown factor in stellar evolution, yet has been illuminated recently by the diverse zoo of interacting transien…

astro-ph.GA2025

Masses, Star-Formation Efficiencies, and Dynamical Evolution of 18,000 HII Regions

Debosmita Pathak, Adam K. Leroy, Ashley. T. Barnes +36

We present measurements of the masses associated with HII regions across 19 nearby star-forming galaxies by combining data from JWST, HST, MUSE, ALMA, VLA, and MeerKAT…

astro-ph.HE2025

SN 2024hpj: A perspective on SN 2009ip-like events

I. Salmaso, A. Pastorello, E. Borsato +25

Supernovae (SNe) IIn are terminal explosions of massive stars that are surrounded by a dense circumstellar medium (CSM). Among SNe IIn, a notable subset is the SN 2009ip-like, whic…

astro-ph.HE2025★ 3 cited

Infrared observations reveal the reprocessing envelope in the tidal disruption event AT 2019azh

Thomas M. Reynolds, Lars Thomsen, Seppo Mattila +14

Tidal disruption events (TDEs) are expected to release much of their energy in the far-ultraviolet (UV), which we do not observe directly. However, infrared (IR) observations can o…

astro-ph.GA2025★ 7 cited

The MUSE view of the Sculptor galaxy: survey overview and the planetary nebulae luminosity function

E. Congiu, F. Scheuermann, K. Kreckel +21

NGC 253, the Sculptor galaxy, is the southern, massive, star-forming disk galaxy closest to the Milky Way. In this work, we present a new 103-pointing MUSE mosaic of this galaxy co…

astro-ph.HE2025★ 13 cited

SN 2024abfo: a partially stripped SN II from a yellow supergiant

A. Reguitti, A. Pastorello, S. J. Smartt +35

We present photometric and spectroscopic data of the type IIb supernova (SN) 2024abfo in NGC 1493 (at 11 Mpc). The ATLAS survey discovered the object just a few hours after the exp…

astro-ph.HE2025★ 6 cited

The bright long-lived Type II SN 2021irp powered by aspherical circumstellar material interaction (I): Revealing the energy source with photometry and spectroscopy

T. M. Reynolds, T. Nagao, R. Gottumukkala +20

Some core-collapse supernovae (CCSNe) are too luminous and radiate too much total energy to be powered by the release of thermal energy from the ejecta and radioactive-decay energy…

astro-ph.HE2024

Optical evolution of AT 2024wpp: the high-velocity outflows in Cow-like transients are consistent with high spherical symmetry

M. Pursiainen, T. L. Killestein, H. Kuncarayakti +17

We present the analysis of optical data of a bright and extremely-rapidly evolving transient, AT2024wpp, whose properties are similar to the enigmatic AT2018cow (aka the Cow). AT20…

astro-ph.HE2024

SN 2023tsz: A helium-interaction driven supernova in a very low-mass galaxy

B. Warwick, J. Lyman, M. Pursiainen +49

SN 2023tsz is a Type Ibn supernova (SNe Ibn) discovered in an extremely low-mass host. SNe Ibn are an uncommon subtype of stripped-envelope core-collapse SNe. They are characterise…

astro-ph.HE2024

Discovery of young, oxygen-rich supernova remnants in PHANGS-MUSE galaxies

Timo Kravtsov, Joseph P. Anderson, Hanindyo Kuncarayakti +2

Context. Supernova remnants (SNRs) are the late stages of supernovae before their merging into the surrounding medium. Oxygen-rich supernova remnants represent a rare subtype with…

astro-ph.HE2024

Red eminence: The intermediate-luminosity red transient AT 2022fnm

S. Moran, R. Kotak, M. Fraser +13

We present results from a five-month-long observing campaign of the unusual transient AT 2022fnm, which displays properties common to both luminous red novae (LRNe) and intermediat…

astro-ph.HE2024★ 8 cited

The enigmatic double-peaked stripped-envelope SN 2023aew

Tuomas Kangas, Hanindyo Kuncarayakti, Takashi Nagao +29

We present optical and near-infrared photometry and spectroscopy of SN 2023aew and our findings on its remarkable properties. This event, initially resembling a Type IIb supernova…

astro-ph.HE2024★ 16 cited

The fast transient AT 2023clx in the nearby LINER galaxy NGC 3799 as a tidal disruption of a very low-mass star

P. Charalampopoulos, R. Kotak, T. Wevers +30

We present an extensive analysis of the optical and UV properties of AT2023clx, the closest TDE to date, that occurred in the nucleus of the interacting LINER galaxy, NGC3799 (z=0.…

astro-ph.IM2022★ 2 cited

Performance characterization and near-realtime monitoring of MUSE adaptive optics modes at Paranal

T. Wevers, F. J. Selman, A. Reyes +13

The Multi Unit Spectroscopic Explorer (MUSE) is an integral field spectrograph on the Very Large Telescope Unit Telescope 4, capable of laser guide star assisted and tomographic ad…

astro-ph.SR2022★ 26 cited

Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631

Y. -Z. Cai, A. Pastorello, M. Fraser +73

We present an observational study of the luminous red nova (LRN) AT\,2021biy in the nearby galaxy NGC\,4631. The field of the object was routinely imaged during the pre-eruptive st…