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Nebular spectroscopy of type IIb SN 2016gkg
Spectral observations of the type-IIb supernova (SN) 2016gkg at 300-800 days are reported. The spectra show nebular characteristics, revealing emission from the progenitor... -
LCs of 4 superluminous SNe from the ZTF survey
We present photometry and spectroscopy of four hydrogen-poor luminous supernovae discovered during the 2-month long science commissioning and early operations of the Zwicky... -
LRS2 spectra of SN 2019neq
We present a spectroscopic analysis of the recently discovered fast-evolving Type I superluminous supernova (SLSN-I) SN 2019neq (at redshift z=0.1059). We compare it to the... -
UV, optical and IR light curve of supernova SN2019dge
We present observations of ZTF18abfcmjw (SN2019dge), a helium-rich supernova with a fast-evolving light curve indicating an extremely low ejecta mass (~0.33M{sun}) and low... -
CSP-II: sp. obs. of the 03fg-like SN Ia LSQ14fmg
The Type Ia supernova (SN Ia) LSQ14fmg exhibits exaggerated properties that may help to reveal the origin of the "super-Chandrasekhar" (or 03fg-like) group. The optical spectrum... -
Spectra of SN 2017eaw 545 & 900 days after explosion
SN 2017eaw, the tenth supernova observed in NGC6946, was a normal Type II-P supernova with an estimated 11-13M{sun} red supergiant progenitor. Here we present nebular-phase... -
UVOT, ZTF gri LCs and spectra of the SN Ia 2019yvq
Early observations of Type Ia supernovae (SNe Ia) provide essential clues for understanding the progenitor system that gave rise to the terminal thermonuclear explosion. We... -
UV to NIR obs. of SN 2019ehk
We present panchromatic observations and modeling of the Calcium-rich supernova (SN) 2019ehk in the star-forming galaxy M100 (d~16.2Mpc) starting 10hr after explosion and... -
Type Ia supernova SN 2019ein UBVgri photometry
We present multiwavelength photometric and spectroscopic observations of SN 2019ein, a high-velocity Type Ia supernova (SNIa) discovered in the nearby galaxy NGC5353 with a... -
Optical light curves of SN 2016hnk
We present observations and modeling of SN 2016hnk, a Ca-rich supernova (SN) that is consistent with being the result of a He-shell double-detonation explosion of a C/O white... -
Zwicky Transient Facility BTS. I.
The Zwicky Transient Facility (ZTF) is performing a three-day cadence survey of the visible northern sky (~3{pi}) with newly found transient candidates announced via public... -
Photometric observations of Type II SN 2018ivc
We present the discovery and high-cadence follow-up observations of SN2018ivc, an unusual SNeII that exploded in NGC1068 (D=10.1Mpc). The light curve of SN2018ivc declines... -
Optical and NIR photometry of 2 Ia type supernovae
We present photometric and spectroscopic observations of SN2013aa and SN2017cbv, two nearly identical type Ia supernovae (SNeIa) in the host galaxy NGC5643. The optical... -
Gemini/GMOS-S spectra of the type IIn SN 2010jl
The luminous Type IIn SN 2010jl shows strong signs of interaction between the SN ejecta and dense circumstellar material. Dust may be present in the unshocked ejecta; the cool,... -
UBVRIJHK & spec. obs. of type Ia SN2019ein
We present optical observations of the Type Ia supernova (SN) 2019ein, starting two days after the estimated explosion date. The spectra and light curves show that SN 2019ein... -
Optical follow-up of SNIc ZTF18aaqjovh
We present ZTF18aaqjovh (SN 2018bvw), a high-velocity ("broad-lined") stripped-envelope (Type Ic) supernova (Ic-BL SN) discovered in the Zwicky Transient Facility one-day... -
Full Spitzer IRAC obs. of SN1987A rise and fall
Spitzer's final Infrared Array Camera observations of SN 1987A show the 3.6 and 4.5{mu}m emission from the equatorial ring (ER) continues a period of steady decline.... -
Follow-up of candidate counterparts of S190814bv
On 2019 August 14, the Advanced LIGO and Virgo interferometers detected the high-significance gravitational wave (GW) signal S190814bv. The GW data indicated that the event... -
NIR spectra of SN 2014C 1-5yr post-explosion
Supernova (SN) 2014C is unique: a seemingly typical hydrogen-poor SN that started to interact with a dense, hydrogen-rich circumstellar medium (CSM) ~100 days post-explosion.... -
UV-Opt light curves of the type Ic SN 2018gep
We present detailed observations of ZTF18abukavn (SN2018gep), discovered in high-cadence data from the Zwicky Transient Facility as a rapidly rising (1.4+/-0.1mag/hr) and...
