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Optical and near-infrared photometry of 94 type II supernovae from the Carnegie Supernova Project
J. P. Anderson, C. Contreras, M. D. Stritzinger +43
Type II supernovae (SNeII) mark the endpoint in the lives of hydrogen-rich massive stars. Their large explosion energies and luminosities allow us to measure distances, metalliciti…
Carnegie Supernova Project-I and -II: Measurements of using Cepheid, TRGB, and SBF Distance Calibration to Type Ia Supernovae
Syed A. Uddin, Christopher R. Burns, Mark M. Phillips +44
We present an analysis of Type Ia Supernovae (SNe~Ia) from both the Carnegie Supernova Project~I (CSP-I) and II (CSP-II), and extend the Hubble diagram from the optical to the near…
Carnegie Supernova Project: kinky -band light-curves of Type Ia supernovae
P. J. Pessi, E. Y. Hsiao, G. Folatelli +19
We present detailed investigation of a specific -band light-curve feature in Type Ia supernovae (SNe Ia) using the rapid cadence and high signal-to-noise ratio light-curves obta…
Type II Supernovae as Distance Indicators at Near-IR Wavelengths
Ó. Rodríguez, G. Pignata, M. Hamuy +13
Motivated by the advantages of observing at near-IR wavelengths, we investigate Type II supernovae (SNe II) as distance indicators at those wavelengths through the Photospheric Mag…
The Carnegie Supernova Project: Absolute Calibration and the Hubble Constant
Christopher. R. Burns, Emilie Parent, M. M. Phillips +23
We present an analysis of the final data release of the Carnegie Supernova Project I, focusing on the absolute calibration of the luminosity-decline-rate relation for Type Ia super…
A Type II Supernova Hubble diagram from the CSP-I, SDSS-II, and SNLS surveys
T. de Jaeger, S. González-Gaitán, M. Hamuy +15
The coming era of large photometric wide-field surveys will increase the detection rate of supernovae by orders of magnitude. Such numbers will restrict spectroscopic follow-up in…
The Carnegie Supernova Project: Intrinsic Colors of Type Ia Supernovae
Christopher R. Burns, Maximilian Stritzinger, M. M. Phillips +12
We present an updated analysis of the intrinsic colors of SNe Ia using the latest data release of the Carnegie Supernova Project. We introduce a new light-curve parameter very simi…
Detection of the Gravitational Lens Magnifying a Type Ia Supernova
Robert M. Quimby, Masamune Oguri, Anupreeta More +8
Objects of known brightness, like Type Ia supernovae (SNIa), can be used to measure distances. If a massive object warps spacetime to form multiple images of a background SNIa, a d…
On the Source of the Dust Extinction in Type Ia Supernovae and the Discovery of Anomalously Strong Na I Absorption
M. M. Phillips, Joshua D. Simon, Nidia Morrell +28
High-dispersion observations of the Na I D 5890, 5896 and K I 7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 Angstroms in the spectra of 32 Type Ia supern…
Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Project
Gastón Folatelli, Nidia Morrell, Mark M. Phillips +27
This is the first release of optical spectroscopic data of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project including 604 previously unpublished spectra o…
Carnegie Supernova Project: Observations of Type IIn supernovae
F. Taddia, M. D. Stritzinger, J. Sollerman +16
The observational diversity displayed by various Type IIn supernovae (SNe IIn) is explored and quantified. In doing so, a more coherent picture ascribing the variety of observed SN…
Extraordinary Magnification of the Ordinary Type Ia Supernova PS1-10afx
Robert M. Quimby, Marcus C. Werner, Masamune Oguri +8
Recently, Chornock and co-workers announced the Pan-STARRS discovery of a transient source reaching an apparent peak luminosity of ~4x10^44 erg s^-1. We show that the spectra of th…
Multi-wavelength Observations of the Enduring Type IIn Supernovae 2005ip and 2006jd
Maximilian Stritzinger, Francesco Taddia, Claes Fransson +19
We present an observational study of the Type IIn supernovae (SNe IIn) 2005ip and 2006jd. Broad-band UV, optical and near-IR photometry, and visual-wavelength spectroscopy of SN 20…
A Precision Photometric Comparison between SDSS-II and CSP Type Ia Supernova Data
J. Mosher, M. Sako, L. Corlies +10
Consistency between Carnegie Supernova Project (CSP) and SDSS-II supernova (SN) survey ugri measurements has been evaluated by comparing SDSS and CSP photometry for nine spectrosco…
The First Maximum-Light Ultraviolet through Near-Infrared Spectrum of a Type Ia Supernova
Ryan J. Foley, Markus Kromer, G. Howie Marion +21
We present the first maximum-light ultraviolet (UV) through near-infrared (NIR) Type Ia supernova (SN Ia) spectrum. This spectrum of SN 2011iv was obtained nearly simultaneously by…
The Standardizability of Type Ia Supernovae in the Near-Infrared: Evidence for a Peak Luminosity-Decline Rate Relation in the Near-Infrared
ShiAnne Kattner, Douglas C. Leonard, Christopher R. Burns +9
We analyze the standardizability of Type Ia supernovae (SNe Ia) in the near-infrared (NIR) by investigating the correlation between observed peak NIR absolute magnitude and post-ma…
The Type II supernovae 2006V and 2006au: two SN 1987A-like events
F. Taddia, M. D. Stritzinger, J. Sollerman +11
Supernova 1987A revealed that a blue supergiant (BSG) star can end its life as a core-collapse supernova (SN). SN 1987A and other similar objects exhibit properties that distinguis…
Unburned Material in the Ejecta of Type Ia Supernovae
Gastón Folatelli, M. M. Phillips, Nidia Morrell +17
(Abridged) The presence of unburned material in the ejecta of normal Type Ia supernovae (SNeIa) is investigated using early-time spectroscopy obtained by the CSP. The tell-tale sig…
A study of the color diversity around maximum light in Type Ia supernovae
Regis Cartier, Francisco Forster, Paolo Coppi +5
From a sample of 12 well-observed Type Ia supernovae, we find clear evidence of correlations between early phase (U-B), (V-R), and (V-I) colors and the velocity shifts of the [Fe I…
Constraining the Properties of SNe~Ia Progenitors from Light Curves
B. Sadler, P. Hoeflich, E. Baron +6
We present an analysis of high precision V light curves (LC) for 18 local Type Ia Supernovae, SNe Ia, as obtained with the same telescope and setup at the Las Campanas Observatory…
The Carnegie Supernova Project: Second Photometry Data Release of Low-Redshift Type Ia Supernovae
Maximilian Stritzinger, M. M. Phillips, Luis Boldt S. +20
The Carnegie Supernova Project (CSP) was a five-year observational survey conducted at Las Campanas Observatory that obtained, among other things, high-quality light curves of ~100…
Effects of Explosion Asymmetry and Viewing Angle on the Type Ia Supernova Color and Luminosity Calibration
K. Maeda, G. Leloudas, S. Taubenberger +7
Phenomenological relations exist between the peak luminosity and other observables of type Ia supernovae (SNe~Ia), that allow one to standardize their peak luminosities. However, s…
The Carnegie Supernova Project: Light Curve Fitting with SNooPy
Christopher R. Burns, Maximilian Stritzinger, M. M. Phillips +13
In providing an independent measure of the expansion history of the Universe, the Carnegie Supernova Project (CSP) has observed 71 high-z Type Ia supernovae (SNe Ia) in the near-in…
The Distance to NGC 1316 (Fornax A) From Observations of Four Type Ia Supernovae
Maximilian Stritzinger, Chris Burns, Mark Phillips +13
The giant elliptical galaxy NGC 1316 (Fornax A) is a well-studied member of the Fornax Cluster and a prolific producer of Type Ia supernovae, having hosted four observed events sin…