The Mass of the Black Hole in the Quasar PG 2130+099 (2008)
Grier, C. J., Peterson, B. M., Bentz, M. C., Denney, K. D., Eastman, J. D., Dietrich, M., ...
We present the results of a recent reverberation-mapping campaign undertaken to improve measurements of the radius of the broad line region and the central black hole mass of the quasar PG 2130+099....
Rest, A., Welch, D. L., Suntzeff, N. B., Oaster, L., Lanning, H., Olsen, K., ...
We report the discovery of an extensive system of scattered light echo arclets associated with the recent supernovae in the local neighbourhood of the Milky Way: Tycho (SN 1572) and Cassiopeia A....
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...
Discovery of the Dust-Enshrouded Progenitor of SN 2008S with Spitzer (2008)
Prieto, J. L., Kistler, M. D., Thompson, T. A., Yuksel, H., Kochanek, C. S., Stanek, K. Z., ...
We report the discovery of the progenitor of the recent type IIn SN 2008S in the nearby galaxy NGC 6946. Surprisingly, it was not found in deep, pre-explosion optical images of its host galaxy taken...
Two More Candidate AM Canum Venaticorum (AM CVn) Binaries from the Sloan Digital Sky Survey (2008)
Anderson, S. F., Becker, A. C., Haggard, D., Prieto, J. L., Knapp, G. R., Sako, M., ...
AM CVn systems are a select group of ultracompact binaries with the shortest orbital periods of any known binary subclass; mass-transfer is likely from a low-mass (partially-)degenerate secondary...
A Survey About Nothing: Monitoring a Million Supergiants for Failed Supernovae (2008)
Kochanek, C. S., Beacom, J. F., Kistler, M. D., Prieto, J. L., Stanek, K. Z., Thompson, T. A., ...
Extragalactic transient searches have historically been limited to looking for the appearance of new sources such as supernovae. It is now possible to carry out a new kind of survey that will do the...
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 Eclipsing Cataclysmic Variable Lanning 386: Dwarf Nova, SW Sextantis Star, or Both? (2008)
Brady, S., Thorstensen, J. R., Koppelman, M. D., Prieto, J. L., Garnavich, P. M., Hirschauer, A., ...
We present photometry and spectroscopy of the suspected cataclysmic variable (CV) Lanning 386. We confirm that it is a CV, and observe deep eclipses, from which we determine the orbital period Porb...
Dilday, Benjamin, Kessler, R., Frieman, J. A., Holtzman, J., Marriner, J., Miknaitis, G., ...
We present a measurement of the rate of type Ia supernovae (SNe Ia) from the first of three seasons of data from the SDSS-II Supernova Survey. For this measurement, we include 17 SNe Ia at redshift...
LBT discovery of a yellow supergiant eclipsing binary in the dwarf galaxy Holmberg IX (2008)
Prieto, J. L., Stanek, K. Z., Kochanek, C. S., Weisz, D. R., Baruffolo, A., Bechtold, J., ...
Go Long, Go Deep: Finding Optical Jet Breaks for Swift-Era GRBs with the LBT (2007)
Dai, X., Garnavich, P. M., Prieto, J. L., Stanek, K. Z., Kochanek, C. S., Bechtold, J., ...
Using the 8.4m Large Binocular Telescope, we observed six GRB afterglows from 2.8 hours to 30.8 days after the burst triggers to systematically probe the late time behaviors of afterglows including...
LBT Discovery of a Yellow Supergiant Eclipsing Binary in the Dwarf Galaxy Holmberg IX (2007)
Prieto, J. L., Stanek, K. Z., Kochanek, C. S., Weisz, D. R., Baruffolo, A., Bechtold, J., ...
In a variability survey of M81 using the Large Binocular Telescope we have discovered a peculiar eclipsing binary (MV ~ -7.1) in the field of the dwarf galaxy Holmberg IX. It has a period of 272 days...
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...
The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary (2007)
Frieman, Joshua A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., ...
The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using...
The Sloan Digital Sky Survey-II Supernova Survey: Search Algorithm and Follow-up Observations (2007)
Sako, Masao, Bassett, B., Becker, A., Cinabro, D., DeJongh, F., Depoy, D. L., ...
The Sloan Digital Sky Survey-II Supernova Survey has identified a large number of new transient sources in a 300 sq. deg. region along the celestial equator during its first two seasons of a...
A Study of the Type Ia/IIn Supernova 2005gj from X-ray to the Infrared: Paper I (2007)
Prieto, J. L., Garnavich, P. M., Phillips, M. M., DePoy, D. L., Parrent, J., Pooley, D., ...
We present extensive ugrizYHJK photometry and optical spectroscopy of SN 2005gj obtained by the SDSS-II and CSP Supernova Projects, which give excellent coverage during the first 150 days after the...
Modjaz, M., Kewley, L., Kirshner, R. P., Stanek, K. Z., Challis, P., Garnavich, P. M., ...
We compare the chemical abundances at the sites of 12 nearby (z
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...
Exploring broadband GRB behavior during gamma-ray emission (2007)
Yost, S. A., Swan, H. F., Rykoff, E. S., Aharonian, F., Akerlof, C. W., Alday, A., ...
Exploring Broadband GRB Behavior During gamma-ray Emission (2006)
Yost, S. A., Swan, H. F., Rykoff, E. S., Aharonian, F., Akerlof, C. W., Alday, A., ...
The robotic ROTSE-III telescope network detected prompt optical emission contemporaneous with the gamma-ray emission of Swift events GRB051109A and GRB051111. Both datasets have continuous coverage...
The Peculiar SN 2005hk: Do Some Type Ia Supernovae Explode as Deflagrations? (2006)
Phillips, M. M., Li, W., Frieman, J. A., Blinnikov, S. I., DePoy, D., Prieto, J. L., ...
We present extensive u'g'r'i'BVRIYJHKs photometry and optical spectroscopy of SN 2005hk. These data reveal that SN 2005hk was nearly identical in its observed properties to SN 2002cx, which has been...
Light echoes of supernovae in the large magellanic cloud (2006)
R. C. Smith, N. B. Suntzeff, K. Olsen, P. Challis, A. C. Becker, A. Miceli, ...
Light echoes of supernovae in the large magellanic cloud
Eerenstein, W., Wiora, M., Prieto, J. L., Scott, J. F., Mathur, N. D.
Magnetoelectric coupling permits a magnetic order parameter to be addressed electrically or vice versa, and could find use in data storage, field sensors and actuators. Coupling constants for single...
Large domain wall resistance in self-organised manganite film (2006)
Granja, L., Hueso, L. E., Sanchez, D., Prieto, J. L., Levy, P., Mathur, N. D.
The electrical resistance of magnetic domain walls in ferromagnetic metallic manganites can be enhanced to 10-12 Ohm.m2 by patterning nanoconstrictions [J. Appl. Phys. 89, 6955 (2001)]. We show...
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...
"Anomalous" Optical GRB Afterglows are Common: Two z~4 Bursts, GRB 060206 and 060210 (2006)
Stanek, K. Z., Dai, X., Prieto, J. L., An, D., Garnavich, P. M., Calkins, M. L., ...
We report on two recent z~4 gamma-ray bursts (GRBs), GRB 060206 and GRB 060210, for which we have obtained well-sampled optical light curves. Our data, combined with early optical data reported in...
Light echoes of supernovae in the large magellanic cloud (2006)
Becker, A. C., Challis, P., Clocchiatti, A., Garg, A., Miceli, A., Miknaitis, G. A., ...
Echoes from Ancient Supernovae in the Large Magellanic Cloud (2005)
Rest, A., Suntzeff, N. B., Olsen, K., Prieto, J. L., Smith, R. C., Welch, D. L., ...
In principle, the light from historical supernovae could still be visible as scattered-light echoes even centuries later. However, while echoes have been discovered around some nearby extragalactic...
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...
Rest, A., Stubbs, C., Becker, A. C., Miknaitis, G. A., Miceli, A., Covarrubias, R., ...
Characterizing the nature and spatial distribution of the lensing objects that produce the previously measured microlensing optical depth toward the Large Magellanic Cloud (LMC) remains an open...
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...
The SuperMACHO Microlensing Survey (2004)
Becker, A. C., Rest, A., Stubbs, C., Miknaitis, G. A., Miceli, A., Covarrubias, R., ...
We present the first results from our next-generation microlensing survey, the SuperMACHO project. We are using the CTIO 4m Blanco telescope and the MOSAIC imager to carry out a search for...