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UV and optical obs. of type Ic SN 2020oi
We present photometric and spectroscopic observations of Supernova 2020oi (SN 2020oi), a nearby (~17Mpc) type-Ic supernova (SNIc) within the grand-design spiral M100. We... -
Optical spectra of type Ia SN 2015bq
We present optical and ultraviolet (UV) observations of a luminous type Ia supernova (SN Ia) SN 2015bq characterized by early flux excess. This SN reaches a B-band absolute... -
Final moments. I. Type II SN 2020tlf
We present panchromatic observations and modeling of supernova (SN) 2020tlf, the first normal Type II-P/L SN with confirmed precursor emission, as detected by the Young... -
Transients in the centers of PS & QBS galaxies
Tidal disruption events (TDEs) have been found to show a preference for post-starburst (PS) and quiescent Balmer-strong (QBS) galaxies. This preference can be used to help find... -
Follow-up phot. & sp. of SNIa 2020hvf
In this Letter we report a discovery of a prominent flash of a peculiar overluminous Type Ia supernova, SN 2020hvf, in about 5hr of the supernova explosion by the first... -
2kpc environments of 472 supernovae
We characterize the local (2kpc sized) environments of Type Ia, II, and Ib/c supernovae (SNe) that have recently occurred in nearby (d<~50Mpc) galaxies. Using ultraviolet... -
Foundation Supernova Survey: SN Ia sample
The ejecta velocities of Type Ia supernovae (SNe Ia), as measured by the SiII{lambda}6355 line, have been shown to correlate with other supernova properties, including color and... -
Opt and NIR phot. follow-up of iPTF SNIa
We present optical and near-infrared (NIR, Y-, J-, H-band) observations of 42 Type Ia supernovae (SNe Ia) discovered by the untargeted intermediate Palomar Transient Factory... -
SNIa observed in H-band combined with UV-opt. LCs
We analyze 143 Type Ia supernovae (SNe Ia) observed in H band (1.6-1.8{mu}m) and find that SNe Ia are intrinsically brighter in H band with increasing host galaxy stellar mass.... -
SN 2018agk spectra and NIR-UV light curves
We present the 30 minutes cadence Kepler/K2 light curve of the Type Ia supernova (SN Ia) SN 2018agk, covering approximately one week before explosion, the full rise phase, and... -
Type Ia SN 2020nlb opt. photometry & spectra
We present deep Chandra X-ray observations of two nearby Type Ia supernovae, SN 2017cbv and SN 2020nlb, which reveal no X-ray emission down to a luminosity L_X_<~5.3x10^37^... -
Keck/NIRES spectrum of type Ia SN 2020qxp
We present and analyze a near-infrared (NIR) spectrum of the underluminous Type Ia supernova SN 2020qxp/ASASSN-20jq obtained with NIRES at the Keck Observatory, 191 days after... -
Opt. phot. & sp. for the type Iax SN 2021fcg
We present the discovery of ZTF 21aaoryiz/SN 2021fcg-an extremely low luminosity Type Iax supernova. SN 2021fcg was discovered by the Zwicky Transient Facility in the... -
SNIa SN2017fgc follow-up phot. & spectra
We present extensive optical photometric and spectroscopic observations of the high-velocity (HV) Type Ia supernova (SN Ia) 2017fgc, covering the phase from ~12 days before to... -
Spectroscopic obs. of type Ibn ASASSN-14ms
ASASSN-14ms may represent the most luminous Type Ibn supernova (SNIbn) ever detected, with an absolute U-band magnitude brighter than -22.0mag and a total bolometric luminosity... -
HST obs. of supernova remnants in NGC6946
We constrained the progenitor masses for 169 supernova remnants (SNRs), eight historically observed supernovae (SNe), and the black hole formation candidate in NGC 6946, finding... -
Type Ic SN2018gep phot. & sp. follow-up
In the last decade a number of rapidly evolving transients have been discovered that are not easily explained by traditional supernova models. We present optical and UV data on... -
Follow-up Opt. and NIR obs. of the SNIa SN2015bp
Unburned carbon is potentially a powerful probe of Type Ia supernova (SN) explosion mechanisms. We present comprehensive optical and near-infrared (NIR) data on the... -
Opt. phot. and GMOS & NIRES spectra of SN2019yvq
We present new photometric and spectroscopic observations of SN2019yvq, a Type Ia supernova (SN Ia) exhibiting several peculiar properties including an excess of UV/optical flux... -
Optical light curves of the type Ic SN 2019stc
We present optical photometry and spectroscopy of SN 2019stc (=ZTF19acbonaa), an unusual Type Ic supernova (SN Ic) at a redshift of z=0.117. SN 2019stc exhibits a broad...
