2.1k citations · 5.4k across the 56 of their papers we have counts for
32 papers · 1 filter
Peak 'Nebular' Emission and Early Flux Excesses in Ca-strong Supernovae
C. -G. Touchard-Paxton, K. Maguire, C. Frohmaier +27
Calcium-strong supernovae (Ca-strong SNe) are a class of thermonuclear transient characterised by rapid photometric evolution (rise times of <= 16 d) and nebular-phase spectra domi…
Bridging the gap between SLSNe and SE-SNe. Multi-wavelength analysis of the SLSN-Ib SN 2024jlc
A. Simongini, F. Acero, M. Imbrogno +15
The Type I super-luminous supernova SN~2024jlc (ZTF24aapadbb) exploded on the 25th of May 2024 at . Being the closest supernova of this class discovered in recent years…
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…
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 (…
A thermonuclear supernova interacting with hydrogen- and helium-deficient circumstellar material. SN 2020aeuh as a SN Ia-CSM-C/O?
K. Tsalapatas, J. Sollerman, R. Chiba +20
Identifying the progenitors of thermonuclear supernovae (Type Ia supernovae; SNe Ia) remains a key objective in contemporary astronomy. The rare subclass of SNe Ia that interacts w…
Luminous, rapidly declining supernovae as stripped transitional objects in low metallicity environments: the case of SN 2022lxg
P. Charalampopoulos, R. Kotak, J. Sollerman +24
We present an analysis of the optical and near-infrared properties of SN 2022lxg, a bright ( mag) and rapidly evolving SN. It was discovered withi…
The ambiguous AT2022rze: Changing-look AGN mimicking a supernova in a merging galaxy system
P. J. Pessi, R. Lunnan, J. Sollerman +36
AT2022rze is a luminous, ambiguous transient located South-East of the geometric center of its host galaxy at redshift z = 0.08. The host appears to be formed by a merging galaxy s…
Eruptive mass loss less than a year before the explosion of superluminous supernovae: I. The cases of SN 2020xga and SN 2022xgc
A. Gkini, C. Fransson, R. Lunnan +47
We present photometric and spectroscopic observations of SN 2020xga and SN 2022xgc, two hydrogen-poor superluminous supernovae (SLSNe-I) at and , respectiv…
Sample of hydrogen-rich superluminous supernovae from the Zwicky Transient Facility
P. J. Pessi, R. Lunnan, J. Sollerman +26
Hydrogen-rich superluminous supernovae (SLSNe II) are rare. The exact mechanism producing their extreme light curve peaks is not understood. Analysis of single events and small sam…
Spectroscopic observations of progenitor activity 100 days before a Type Ibn supernova
S. J. Brennan, J. Sollerman, I. Irani +30
Obtaining spectroscopic observations of the progenitors of core-collapse supernovae is often unfeasible due to an inherent lack of knowledge as to which stars will go supernova and…
SN 2021adxl: A luminous nearby interacting supernova in an extremely low metallicity environment
S. J. Brennan, S. Schulze, R. Lunnan +17
SN 2021adxl is a slowly evolving, luminous, Type IIn supernova with asymmetric emission line profiles, similar to the well-studied SN 2010jl. We present extensive optical, near-ult…
SN 2019odp: A Massive Oxygen-Rich Type Ib Supernova
T. Schweyer, J. Sollerman, A. Jerkstrand +18
We present and analyze observations of the Type Ib supernova (SN) 2019odp (a.k.a ZTF19abqwtfu) covering epochs within days of the explosion to the nebular phase at 360 d post-explo…
A population of Type Ibc supernovae with massive progenitors; broad lightcurves not uncommon in (i)PTF
E. Karamehmetoglu, J. Sollerman, F. Taddia +9
If high-mass stars (>20-25 Msun) are the progenitors of stripped-envelope (SE) supernovae (SNe), their massive ejecta should lead to broad, long-duration lightcurves (LCs). Instead…
SN2020qlb: A hydrogen-poor superluminous supernova with well-characterized light curve undulations
S. L. West, R. Lunnan, C. M. B. Omand +21
SN\,2020qlb (ZTF20abobpcb) is a hydrogen-poor superluminous supernova (SLSN-I) that is among the most luminous (maximum M mag) and that has one of the longest rise t…
The Hydrogen-Poor Superluminous Supernovae from the Zwicky Transient Facility Phase-I Survey: I. Light Curves and Measurements
Z. H. Chen, Lin Yan, T. Kangas +40
During the Zwicky Transient Facility (ZTF) Phase-I operation, 78 hydrogen-poor superluminous supernovae (SLSNe-I) were discovered in less than three years, making up the largest sa…
Three Core-Collapse Supernovae with Nebular Hydrogen Emission
J. Sollerman, S. Yang, S. Schulze +25
We present SN 2020jfo, a Type IIP supernova in the nearby galaxy M61. Optical light curves from the Zwicky Transient Facility, complemented with data from Swift and near-IR photome…
A low-energy explosion yields the underluminous Type IIP SN 2020cxd
S. Yang, J. Sollerman, N. L. Strotjohann +12
We present observations and analysis of SN 2020cxd, a Low luminous (LL), long-lived Type IIP SN. This object was a clear outlier in the magnitude-limited SN sample recently present…
AT 2019avd: A novel addition to the diverse population of nuclear transients
A. Malyali, A. Rau, A. Merloni +29
We report on SRG/eROSITA, ZTF, ASAS-SN, Las Cumbres, NEOWISE-R, and Swift XRT/UVOT observations of the unique ongoing event AT 2019avd, located in the nucleus of a previously inact…
Multi-wavelength Observations of AT2019wey: a New Candidate Black Hole Low-mass X-ray Binary
Yuhan Yao, S. R. Kulkarni, Kevin B. Burdge +21
AT2019wey (SRGA J043520.9+552226, SRGE J043523.3+552234) is a transient first reported by the ATLAS optical survey in 2019 December. It rose to prominence upon detection, three mon…
Two stripped envelope supernovae with circumstellar interaction -- but only one really shows it
J. Sollerman, C. Fransson, C. Barbarino +23
We present SN 2019tsf (ZTF19ackjszs) and SN 2019oys (ZTF19abucwzt). These two stripped envelope Type Ib supernovae suddenly showed a (re-)brightening in their late light curves. We…
SN 2018ijp: the explosion of a stripped-envelope star within a dense H-rich shell?
L. Tartaglia, J. Sollerman, C. Barbarino +24
In this paper, we discuss the outcomes of the follow-up campaign of SN 2018ijp, discovered as part of the Zwicky Transient Facility survey for optical transients. Its first spectru…
SN 2020bqj: a Type Ibn supernova with a long lasting peak plateau
E. C. Kool, E. Karamehmetoglu, J. Sollerman +31
Context: Type Ibn supernovae are a rare class of stripped envelope supernovae interacting with a helium-rich CSM. The majority of the SNe Ibn reported display a surprising homogene…
SN2019dge: a Helium-rich Ultra-Stripped Envelope Supernova
Yuhan Yao, Kishalay De, Mansi M. Kasliwal +28
We present observations of ZTF18abfcmjw (SN2019dge), a helium-rich supernova with a fast-evolving light curve indicating an extremely low ejecta mass () and l…
SN2020bvc: a Broad-lined Type Ic Supernova with a Double-peaked Optical Light Curve and a Luminous X-ray and Radio Counterpart
A. Y. Q. Ho, S. R. Kulkarni, D. A. Perley +34
We present optical, radio, and X-ray observations of SN2020bvc (=ASASSN20bs; ZTF20aalxlis), a nearby (; =114 Mpc) broad-lined (BL) Type Ic supernova (SN). Our observat…