Kocevski, Daniel, Thone, Christina C, Ramirez-Ruiz, Enrico, Bloom, Joshua S., Granot, Jonathan, Butler, Nathaniel R., ...
We present results of an extensive observing campaign of the short duration, hard spectrum gamma-ray burst (GRB) 070724A, aimed at detecting the radioactively-powered emission that might follow from...
GRB 090426: The Environment of a Rest-Frame 0.35-second Gamma-Ray Burst at Redshift z=2.609 (2009)
Levesque, Emily M., Bloom, Joshua S., Butler, Nathaniel R., Perley, Daniel A., Cenko, S. Bradley, Prochaska, J. Xavier, ...
We present the discovery of an absorption-line redshift of z = 2.609 for GRB 090426, establishing the first firm lower limit to a redshift for a gamma-ray burst with an observed duration of 90%...
Modeling The GRB Host Galaxy Mass Distribution: Are GRBs Unbiased Tracers of Star Formation? (2009)
Kocevski, Daniel, West, Andrew A., Modjaz, Maryam
We model the mass distribution of long gamma-ray burst (GRB) host galaxies given recent results suggesting that GRBs occur in low metallicity environments. By utilizing measurements of the redshift...
Training the Next Generation of Astronomers (2009)
Williams, Peter K. G., Huff, Eric, Maness, Holly, Modjaz, Maryam, Shapiro, Kristen L., Silverman, Jeffrey M., ...
While both society and astronomy have evolved greatly over the past fifty years, the academic institutions and incentives that shape our field have remained largely stagnant. As a result, the...
SN 2008ha: An Extremely Low Luminosity and Extremely Low Energy Supernova (2009)
Foley, Ryan J., Chornock, Ryan, Filippenko, Alexei V., Ganeshalingam, Mohan, Kirshner, Robert P., Li, Weidong, ...
We present ultraviolet, optical, and near-infrared photometry as well as optical spectra of the peculiar supernova (SN) 2008ha. SN 2008ha had a very low peak luminosity, reaching only M_V = -14.2...
CfA3: 185 Type Ia Supernova Light Curves from the CfA (2009)
Hicken, Malcolm, Challis, Peter, Jha, Saurabh, Kirshner, Robert P., Matheson, Tom, Modjaz, Maryam, ...
We present multi-band photometry of 185 type-Ia supernovae (SN Ia), with over 11500 observations. These were acquired between 2001 and 2008 at the F. L. Whipple Observatory of the Harvard-Smithsonian...
Improved Standardization of Type II-P Supernovae: Application to an Expanded Sample (2008)
Poznanski, Dovi, Butler, Nathaniel, Filippenko, Alexei V., Ganeshalingam, Mohan, Li, Weidong, Bloom, Joshua S., ...
In the epoch of precise and accurate cosmology, cross-confirmation using a variety of cosmographic methods is paramount to circumvent systematic uncertainties. Owing to progenitor histories and...
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...
Double-peaked Oxygen Lines Are not Rare in Nebular Spectra of Core-Collapse Supernovae (2007)
Modjaz, Maryam, Kirshner, R. P., Blondin, S., Challis, P., Matheson, T.
Double-peaked oxygen lines in the nebular spectra of two peculiar Type Ib/c Supernovae (SN Ib/c) have been interpreted as off-axis views of a GRB-jet or unipolar blob ejections. Here we present...
Saurabh Jha, Peter M. Garnavich, Robert P. Kirshner, Peter Challis, Alicia M. Soderberg, Lucas M. Macri, ...
We present optical and near-infrared photometry and spectroscopy of the Type Ia SN 1998bu in the Leo I Group galaxy M96 (NGC 3368). The data set consists of 356 photometric measurements and 29...
Type Ia Supernovae are Good Standard Candles in the Near Infrared: Evidence from PAIRITEL (2007)
Wood-Vasey, W. Michael, Friedman, Andrew S., Bloom, Joshua S., Hicken, Malcolm, Modjaz, Maryam, Kirshner, Robert P., ...
We have obtained 1087 NIR (JHKs) measurements of 21 SNe Ia using PAIRITEL, nearly doubling the number of well-sampled NIR SN Ia light curves. These data strengthen the evidence that SNe Ia are...
Dessart, Luc, Blondin, Stephane, Brown, Peter J., Hicken, Malcolm, Hillier, D. John, Holland, Stephen T., ...
We analyze the Type II Plateau supernovae (SN II-P) 2005cs and 2006bp with the non-LTE model atmosphere code CMFGEN. We fit 13 spectra in the first month for SN 2005cs and 18 for SN 2006bp. {\sl...
Brown, Peter J., Dessart, Luc, Holland, Stephen T., Immler, Stefan, Landsman, Wayne, Blondin, Stéphane, ...
Varied deaths of massive stars : properties of nearby Type IIb, Ib and Ic supernovae / (2007)
Dissertation advisor: Prof. Robert P. Kirshner.
Kocevski, Daniel, Modjaz, Maryam, Bloom, Joshua S., Foley, Ryan, Starr, Daniel, Blake, Cullen H., ...
We report simultaneous multicolor near-infrared (NIR) observations of the supernova associated with x-ray Flash 060218 during the first 16 days after the high energy event. We find that the light...
Early Ultraviolet, Optical and X-Ray Observations of the Type IIP SN 2005cs in M51 with Swift (2006)
Brown, Peter J., Dessart, Luc, Holland, Stephen T., Immler, Stefan, Landsman, Wayne, Blondin, Stephane, ...
We report early photospheric-phase observations of the Type IIP Supernova (SN) 2005cs obtained by Swift's Ultraviolet-Optical and X-Ray Telescopes. Observations started within two days of discovery...
Probing the Magnetic Field at Sub-Parsec Radii in the Accretion Disk of NGC 4258 (2005)
Modjaz, Maryam, Moran, James M., Kondratko, Paul T., Greenhill, Lincoln J.
We present an analysis of polarimetric observations at 22 GHz of the water vapor masers in NGC 4258 obtained with the VLA and the GBT. We do not detect any circular polarization in the spectrum...
A Hubble Space Telescope Snapshot Survey of Nearby Supernovae (2002)
Li, Weidong, Filippenko, Alexei V., Van Dyk, Schuyler D., Hu, Jingyao, Qiu, Yulei, Modjaz, Maryam, ...
We present photometry of 12 recent supernovae (SNe) recovered in a {\it Hubble Space Telescope} Snapshot program, and tie the measurements to earlier ground-based observations, in order to study the...
The Unique Type Ia Supernova 2000cx in NGC 524 (2001)
Li, Weidong, Filippenko, Alexei V., Gates, Elinor, Chornock, Ryan, Gal-Yam, Avishay, Ofek, Eran O., ...
We present extensive photometric and spectroscopic observations of the Type Ia supernova (SN Ia) 2000cx in the S0 galaxy NGC 524, which reveal it to be peculiar. Photometrically, SN 2000cx is...
The Subluminous Type Ia Supernova 1998de in NGC 252 (2000)
Modjaz, Maryam, Li, Weidong, Filippenko, Alexei V., King, Jennifer Y., Leonard, Douglas C., Matheson, Thomas, ...
We present spectroscopic and extensive photometric observations of supernova (SN) 1998de in the S0 galaxy NGC 252, discovered during the course of the Lick Observatory Supernova Search. These data,...