Wang, Xiaofeng, Li, Weidong, Filippenko, Alexei V., Foley, R. J., Kirshner, R. P., Modjaz, M., ...
We present extensive photometry at ultraviolet (UV), optical, and near-infrared (NIR) wavelengths, as well as dense sampling of optical spectra, for the normal type Ia supernova (SN Ia) 2005cf. From...
A Second Case of Variable Na I D Lines in a Highly-Reddened Type Ia Supernova (2008)
Blondin, S., Prieto, J. L., Patat, F., Challis, P., Hicken, M., Kirshner, R. P., ...
Recent high-resolution spectra of the Type Ia SN 2006X have revealed the presence of time-variable and blueshifted Na I D features, interpreted by Patat et al. as originating in circumstellar...
GALEX Spectroscopy of SN 2005ay suggests a UV spectral uniformity among type II-P supernovae (2008)
Gal-Yam, A., Bufano, F., Barlow, T., Baron, E., Benetti, S., Cappellaro, E., ...
We present the first results from our GALEX program designed to obtain ultraviolet (UV) spectroscopy of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC...
Exploring the Outer Solar System with the ESSENCE Supernova Survey (2008)
Becker, A. C., Arraki, K., Kaib, N. A., Wood-Vasey, W. M., Aguilera, C., Blackman, J. W., ...
We report the discovery and orbit determination of 14 trans-Neptunian objects (TNOs) from the ESSENCE Supernova Survey difference imaging dataset. Two additional objects discovered in a similar...
Modjaz, Maryam, Li, W., Butler, N., Chornock, R., Perley, D., Blondin, S., ...
(ABRIDGED) We present extensive early photometric (UBVRr'Ii'JHKs) and spectroscopic (optical and near-infrared) data on supernova (SN) 2008D as well as X-ray data on the associated X-ray transient...
Spectral Identification of an Ancient Supernova using Light Echoes in the LMC (2008)
Rest, A., Matheson, T., Blondin, S., Bergmann, M., Welch, D. L., Suntzeff, N. B., ...
We report the successful identification of the type of the supernova responsible for the supernova remnant SNR 0509-675 in the Large Magellanic Cloud (LMC) using Gemini spectra of surrounding light...
The Luminous and Carbon-Rich Supernova 2006gz: A Double Degenerate Merger? (2007)
Hicken, M., Garnavich, P. M., Prieto, J. L., Blondin, S., DePoy, D. L., Kirshner, R. P., ...
Spectra and light curves of SN 2006gz show the strongest signature of unburned carbon and one of the slowest fading light curves ever seen in a type Ia event (Delta m_15 = 0.69 +/- 0.04). The...
Wood-Vasey, W. M., Miknaitis, G., Stubbs, C. W., Jha, S., Riess, A. G., Garnavich, P. M., ...
We present constraints on the dark energy equation-of-state parameter, w=P/(rho c^2), using 60 Type Ia supernovae (SNe Ia) from the ESSENCE supernova survey. We derive a set of constraints on the...
The ESSENCE Supernova Survey: Survey Optimization, Observations, and Supernova Photometry (2007)
Miknaitis, G., Pignata, G., Rest, A., Wood-Vasey, W. M., Blondin, S., Challis, P., ...
We describe the implementation and optimization of the ESSENCE supernova survey, which we have undertaken to measure the equation of state parameter of the dark energy. We present a method for...
Modjaz, M., Stanek, K. Z., Garnavich, P. M., Berlind, P., Blondin, S., Brown, W., ...
We present early photometric and spectroscopic data on the afterglow of GRB 060218 and report the evolution of the underlying supernova 2006aj. Our data span a time-range of 4 days to 22 days after...
Using Line Profiles to Test the Fraternity of Type Ia Supernovae at High and Low Redshifts (2005)
Blondin, S., Dessart, L., Leibundgut, B., Branch, D., Hoeflich, P., Tonry, J. L., ...
Using archival data of low-redshift (z < 0.01) Type Ia supernovae (SN Ia) and recent observations of high-redshift (0.16 < z 1.7] SN Ia, which are also subluminous. In addition, we give the first...
Tominaga, N., Tanaka, M., Nomoto, K., Mazzali, P. A., Deng, J., Maeda, K., ...
Observations and modeling for the light curve (LC) and spectra of supernova (SN) 2005bf are reported. This SN showed unique features: the LC had two maxima, and declined rapidly after the second...
Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae (2005)
Krisciunas, Kevin, Garnavich, Peter M., Challis, Peter, Prieto, Jose Luis, Riess, A. G., Barris, B., ...
We present broad-band light curves of nine supernovae ranging in redshift from 0.5 to 0.8. The supernovae were discovered as part of the ESSENCE project, and the light curves are a combination of...
Spectroscopy of High-Redshift Supernovae from the ESSENCE Project: The First Two Years (2004)
Matheson, T., Blondin, S., Foley, R. J., Chornock, R., Filippenko, A. V., Leibundgut, B., ...
We present the results of spectroscopic observations of targets discovered during the first two years of the ESSENCE project. The goal of ESSENCE is to use a sample of ~200 Type Ia supernovae (SNe...