159 citations · 3.7k across the 140 of their papers we have counts for
21 papers · 1 filter
The Dark Energy Survey Supernova Program: Cosmological biases from supernova photometric classification
M. Vincenzi, M. Sullivan, A. Möller +81
Cosmological analyses of samples of photometrically-identified Type Ia supernovae (SNe Ia) depend on understanding the effects of 'contamination' from core-collapse and peculiar SN…
Signatures of AGN induced metal loss in the stellar population
A. Camps-Fariña, S. F. Sanchez, L. Carigi +5
One way the AGN are expected to influence the evolution of their host galaxies is by removing metal content via outflows. In this article we present results that show that AGN can…
Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-Envelope Core-Collapse Supernovae
M. Shahbandeh, E. Y. Hsiao, C. Ashall +29
We present 75 near-infrared (NIR; 0.82.5 m) spectra of 34 stripped-envelope core-collapse supernovae (SESNe) obtained by the Carnegie Supernova Project-II (CSP-II), encompass…
Transitional events in the spectrophotometric regime between stripped envelope and superluminous supernovae
S. J. Prentice, C. Inserra, S. Schulze +24
The division between stripped-envelope supernovae (SE-SNe) and superluminous supernovae (SLSNe) is not well defined in either photometric or spectroscopic space. While a sharp lumi…
Measuring an off-Center Detonation through Infrared Line Profiles: The peculiar Type Ia Supernova SN~2020qxp/ASASSN-20jq
P. Hoeflich, C. Ashall, S. Bose +17
We present and analyze a near infrared(NIR) spectrum of the under-luminous Type Ia supernova SN~2020qxp/ASASSN-20jq obtained with NIRES at the Keck Observatory 191 days after B-ban…
A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn
W. B. Hoogendam, C. Ashall, L. Galbany +18
We present optical and near-infrared photometric and spectroscopic observations of the fast-declining Type Ia Supernova (SN) 2015bo. SN 2015bo is under-luminous (M = -17.67 $\p…
Circumstellar Medium Constraints on the Environment of Two Nearby Type Ia Supernovae: SN 2017cbv and SN 2020nlb
D. J. Sand, S. K. Sarbadhicary, C. Pellegrino +23
We present deep Chandra X-ray observations of two nearby Type Ia supernovae, SN 2017cbv and SN 2020nlb, which reveal no X-ray emission down to a luminosity 5.3$\time…
SN2017jgh - A high-cadence complete shock cooling lightcurve of a SN IIb with the Kepler telescope
P. Armstrong, B. E. Tucker, A. Rest +69
SN 2017jgh is a type IIb supernova discovered by Pan-STARRS during the C16/C17 campaigns of the Kepler/K2 mission. Here we present the Kepler/K2 and ground based observations of SN…
SN 2018agk: A Prototypical Type Ia Supernova with a Smooth Power-law Rise in Kepler (K2)
Qinan Wang, Armin Rest, Yossef Zenati +73
We present the 30-min 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 the decli…
SN 2019hcc: A Type II Supernova Displaying Early O II Lines
Eleonora Parrag, Cosimo Inserra, Steve Schulze +18
We present optical spectroscopy together with ultraviolet, optical and near-infrared photometry of SN 2019hcc, which resides in a host galaxy at redshift 0.044, displaying a sub-so…
Probing the Progenitors of Type Ia Supernovae using Circumstellar Material Interaction Signatures
Peter Clark, Kate Maguire, Mattia Bulla +4
This work aims to study different probes of Type Ia supernova progenitors that have been suggested to be linked to the presence of circumstellar material (CSM). In particular, we h…
ASASSN-15hy: an under-luminous, red 03fg-like type Ia supernova
J. Lu, C. Ashall, E. Y. Hsiao +33
We present photometric and spectroscopic observations of the 03fg-like type Ia supernova (SN Ia) ASASSN-15hy from the ultraviolet (UV) to the near-infrared (NIR). ASASSN-15hy share…
SN 2020cpg: an energetic link between type IIb and Ib supernovae
K. Medler, P. A. Mazzali, J. Teffs +18
Stripped-envelope supernovae (SE-SNe) show a wide variety of photometric and spectroscopic properties. This is due to the different potential formation channels and the stripping m…
Carnegie Supernova Project: The First Homogeneous Sample of "Super-Chandrasekhar Mass"/2003fg-like Type Ia Supernova
C. Ashall, J. Lu, E. Y. Hsiao +38
We present a multi-wavelength photometric and spectroscopic analysis of thirteen "Super-Chandrasekhar Mass"/2003fg-like type Ia Supernova (SNe~Ia). Nine of these objects were obser…
Detection of metallicity correlations in 100 nearby galaxies
Zefeng Li, Mark R. Krumholz, Emily Wisnioski +4
In this paper we analyse the statistics of the 2D gas-phase oxygen abundance distributions of 100 nearby galaxies drawn from the Calar Alto Legacy Integral Field spectroscopy Area…
The double-peaked type Ic Supernova 2019cad: another SN 2005bf-like object
C. P. Gutiérrez, M. C. Bersten, M. Orellana +23
We present the photometric and spectroscopic evolution of supernova (SN) 2019cad during the first days from explosion. Based on the light curve morphology, we find that S…
Understanding the extreme luminosity of DES14X2fna
M. Grayling, C. P. Gutiérrez, M. Sullivan +66
We present DES14X2fna, a high-luminosity, fast-declining type IIb supernova (SN IIb) at redshift , detected by the Dark Energy Survey (DES). DES14X2fna is an unusual memb…
Progenitor, environment, and modelling of the interacting transient, AT 2016jbu (Gaia16cfr)
S. J. Brennan, M. Fraser, J. Johansson +67
We present the bolometric lightcurve, identification and analysis of the progenitor candidate, and preliminary modelling of AT2016jbu (Gaia16cfr). We find a progenitor consistent w…
Photometric and spectroscopic evolution of the interacting transient AT 2016jbu (Gaia16cfr)
S. J. Brennan, M. Fraser, J. Johansson +68
We present the results from a high cadence, multi-wavelength observation campaign of AT 2016jbu (aka Gaia16cfr), an interacting transient. This dataset complements the current lite…
The Dependence of the Type Ia Supernova Host Bias on Observation or Fitting Technique
Jared Hand, Shu Liu, Lluís Galbany +3
More luminous Type Ia supernovae (SNe Ia) prefer less massive hosts and regions of higher star formation. This correlation is inverted during width-color-luminosity light curve sta…
SN 2013ai: a link between hydrogen-rich and hydrogen-poor core-collapse supernovae
S. Davis, P. J. Pessi, M. Fraser +33
We present a study of optical and near-infrared (NIR) spectra along with the light curves of SN 2013ai. These data range from discovery until 380 days after explosion. SN 2013ai is…