Variable Sodium Absorption in a Low-extinction Type Ia Supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
Recent observations have revealed that some Type Ia supernovae exhibit narrow, time-variable Na I D absorption features. The origin of the absorbing material is controversial, but it may suggest the...
Modeling the light curve of the transient SCP06F6 (2009)
Chatzopoulos, Emmanouil, Wheeler, J. Craig, Vinko, Jozsef
We consider simple models based on core collapse or pair-formation supernovae to account for the light curve of the transient SCP06F6. A radioactive decay diffusion model provides estimates of the...
Variable Sodium Absorption in a Low-Extinction Type Ia Supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
Recent observations have revealed that some Type Ia supernovae exhibit narrow, time-variable Na I D absorption features. The origin of the absorbing material is controversial, but it may suggest the...
Dust and the type II-plateau supernova 2004et (2009)
Kotak, Rubina, Meikle, Peter, Farrah, Duncan, Gerardy, Christopher, Foley, Ryan, Van Dyk, Schuyler, ...
We present mid-infrared (MIR) observations of the Type II-plateau supernova (SN) 2004et, obtained with the {\it Spitzer Space Telescope} between days 64 and 1406 past explosion. Late-time optical...
Variable sodium absorption in a low-extinction type Ia supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
Aspherical Core-Collapse Supernovae in Red Supergiants Powered by Nonrelativistic Jets (2008)
Couch, Sean M., Wheeler, J. Craig, Milosavljevic, Milos
We explore the observational characteristics of jet-driven supernovae by simulating bipolar-jet-driven explosions in a red supergiant progenitor. We present results of four models in which we hold...
Spectropolarimetry of Supernovae (2008)
Wang, Lifan, Wheeler, J. Craig
Overwhelming evidence has accumulated in recent years that supernova explosions are intrinsically 3-dimensional phenomena with significant departures from spherical symmetry. We review the evidence...
Pan, Liubin, Wheeler, J. Craig, Scalo, John
We examine the effects of turbulent intermittency on the deflagration to detonation transition (DDT) in Type Ia supernovae. The Zel'dovich mechanism for DDT requires the formation of a nearly...
Late-Time HST Photometry of SN 1994I: Hints of Positron Annihilation Energy Deposition (2008)
Clocchiatti, Alejandro, Wheeler, J. Craig, Kirshner, Robert P., Branch, David, Challis, Peter, Chevalier, Roger A., ...
We present multicolor Hubble Space Telescope (HST) WFPC2 broadband observations of the Type Ic SN 1994I obtained approximately 280 days after maximum light. We measure the brightness of the SN and,...
First-Year Spectroscopy for the SDSS-II Supernova Survey (2008)
Zheng, Chen, Romani, Roger W., Sako, Masao, Marriner, John, Bassett, Bruce, Becker, Andrew, ...
This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of...
The sloan digital sky survey-II supernova survey: technical summary (2008)
Frieman, Joshua A., Bassett, Bruce, Becker, Andrew, Choi, Changsu, Cinabro, David, DeJongh, Fritz, ...
First-year spectroscopy for the sloan digital sky survey - II. Supernova survey (2008)
Zheng, Chen, Romani, Roger W., Sako, Masao, Marriner, John, Bassett, Bruce, Becker, Andrew, ...
Wheeler, J. Craig, Maund, Justyn R., Couch, Sean M.
Based on optical, IR and X-ray studies of Cas A, we propose a geometry for the remnant based on a "jet-induced" scenario with significant systematic departures from axial symmetry. In this model, the...
Constraints on Circumstellar Material Around the Type Ia Supernova 2007af (2007)
Simon, Joshua D., Gal-Yam, Avishay, Penprase, Bryan E., Li, Weidong, Quimby, Robert M., Silverman, Jeffrey M., ...
Patat et al. recently inferred the existence of circumstellar material around a normal Type Ia supernova (SN) for the first time, finding time-variable Na I D absorption lines in the spectrum of SN...
SN 2005ap: A Most Brilliant Explosion (2007)
Quimby, Robert M., Aldering, Greg, Wheeler, J. Craig, Höflich, Peter, Akerlof, Carl W., Rykoff, Eli S.
We present unfiltered photometric observations with ROTSE-III and optical spectroscopic follow-up with the HET and Keck of the most luminous supernova yet identified, SN 2005ap. The spectra taken...
Gerardy, Christopher L., Meikle, W. P. S., Kotak, Rubina, Höflich, Peter, Farrah, Duncan, Filippenko, Alexei V., ...
We present mid-infrared (5.2-15.2 μm) spectra of the Type Ia supernovae (SNe Ia) 2003hv and 2005df observed with the Spitzer Space Telescope. These are the first observed mid-infrared spectra of...
SN 2005hj: Evidence for Two Classes of Normal-Bright SNe Ia and Implications for Cosmology (2007)
Quimby, Robert, Höflich, Peter, Wheeler, J. Craig
HET Optical spectra covering the evolution from about 6 days before to about 5 weeks after maximum light and the ROTSE-IIIb unfiltered light curve of the "Branch-normal" Type Ia Supernova SN 2005hj...
SN 2006bp: Probing the Shock Breakout of a Type II-P Supernova (2007)
Quimby, Robert M., Wheeler, J. Craig, Höflich, Peter, Akerlof, Carl W., Brown, Peter J., Rykoff, Eli S.
HET optical spectroscopy and unfiltered ROTSE-III photometry spanning the first 11 months since explosion of the Type II-P SN 2006bp are presented. Flux limits from the days before discovery combined...
Wheeler, J. Craig, Maund, Justyn R., Akiyama, Shizuka
All core collapse supernovae are strongly aspherical. The "Bochum event," with velocity components displaced symmetrically about the principal H$\alpha$ line, strongly suggests that SN 1987A was a...
Gerardy, Christopher L., Meikle, W. P. S., Kotak, Rubina, Hoeflich, Peter, Farrah, Duncan, Filippenko, Alexei V., ...
We present the first mid-infrared (5.2-15.2 micron) spectra of Type Ia supernovae (SNe 2003hv and 2005df). The detection of Ni emission in SN 2005df 135 days after the explosion provides direct...
Smith, Nathan, Li, Weidong, Foley, Ryan J., Wheeler, J. Craig, Pooley, Dave, Chornock, Ryan, ...
(abridged) We report our discovery and observations of the peculiar Type IIn supernova SN2006gy in NGC1260, revealing that it reached a peak magnitude of -22, making it the most luminous supernova...
Fesen, Robert A., Hoeflich, Peter A., Hamilton, Andrew J. S., Hammell, Molly C., Gerardy, Christopher L., Khokhlov, Alexei M., ...
We present HST images of the remnant of SN 1885 seen in absorption against M31's bulge via resonance lines of Ca I, Ca II, Fe I, and Fe II. Viewed in CaII H & K line absorption, the remnant appears...
Spitzer measurements of atomic and molecular abundances in the Type IIP SN 2005af (2006)
Kotak, Rubina, Meikle, Peter, Pozzo, Monica, Van Dyk, Schuyler D., Farrah, Duncan, Fesen, Robert, ...
We present results based on Spitzer Space Telescope mid-infrared (3.6-30 micron) observations of the nearby IIP supernova 2005af. We report the first ever detection of the SiO molecule in a Type IIP...
De-leptonization and Non-Axisymmetric Instabilities in Core Collapse Supernovae (2006)
Wheeler, J. Craig, Akiyama, Shizuka
The timescale of de-leptonization by neutrino loss and associated contraction of a proto-neutron star is short compared to the time to progagate a shock through the helium core of a massive star, and...
Phillips, M. M., Garnavich, Peter, Wang, Yun, Branch, David, Baron, Edward, Crotts, Arlin, ...
JEDI (Joint Efficient Dark-energy Investigation) is a candidate implementation of the NASA-DOE Joint Dark Energy Mission (JDEM). JEDI will probe dark energy in three independent methods: (1) type Ia...
The asymmetric explosion of type Ia supernovae as seen from near-infrared observations (2006)
Motohara, Kentaro, Maeda, Keiichi, Gerardy, Christopher L., Nomoto, Ken'ichi, Tanaka, Masaomi, Tominaga, Nozomu, ...
The Convective Urca Process with Implicit Two-Dimensional Hydrodynamics (2005)
Stein, Josef, Wheeler, J. Craig
Consideration of the role of the convective flux in the thermodymics of the convective Urca neutrino loss process in degenerate, convective, quasi-static, carbon-burning cores shows that the...
Quimby, Robert, Hoeflich, Peter, Kannappan, Sheila J., Rykoff, Eli, Rujopakarn, Wiphu, Akerlof, Carl W., ...
We present the spectral evolution, light curve, and corresponding interpretation for the "normal-bright" Type Ia Supernova 2005cg discovered by ROTSE-IIIc. The host is a low-luminosity (M_r =...
The Non-Monotonic Dependence of Supernova and Remnant Formation on Progenitor Rotation (2005)
Akiyama, Shizuka, Wheeler, J. Craig
Traditional models of core collapse suggest the issue of successful versus failed supernova explosions and neutron star versus black hole formation depends monotonically on the mass (and metallicity)...
Magnetic Fields in Core Collapse Supernovae: Possibilities and Gaps (2004)
Wheeler, J. Craig, Akiyama, Shizuka
Spectropolarimetry of core collapse supernovae has shown that they are asymmetric and often, but not universally, bi-polar. The Type IIb SN1993J and similar events showed large scatter in the Stokes...
Pre-Maximum Spectropolarimetry of the Type Ia SN 2004dt (2004)
Wang, Lifan, Baade, Dietrich, Hoeflich, Peter, Wheeler, J. Craig, Kawabata, Koji, Khokhlov, Alexei, ...
We report observations of SN 2004dt obtained with the Very Large Telescope of the European Southern Observatory on August 13.30, 2004 when the supernova was more than a week before optical maximum....
Fransson, Claes, Challis, Peter M., Chevalier, Roger A., Filippenko, Alexei V., Kirshner, Robert P., Kozma, Cecilia, ...
Ground-based and Hubble Space Telescope observations are presented for SN 1993J and SN 1998S. SN 1998S shows strong, relatively narrow circumstellar emission lines of N III-V and C III-IV, as well as...
3-D Explosions: A Meditation on Rotation (and Magnetic Fields) (2004)
This is the text of an introduction to a workshop on asymmetric explosions held in Austin in June, 2003. The great progress in supernova research over thirty-odd years is briefly reviewed. The...
Conference Summary: Three Dimensional Explosions (2004)
This is the text of a summary of the workshop on asymmetric explosions held in Austin in June, 2003. A brief review is given of the author's own interests in dynamo theory as it may apply in the core...
On The Hydrogen Emission From The Type Ia Supernova 2002ic (2003)
Wang, Lifan, Baade, Dietrich, Hoeflich, Peter, Wheeler, J. Craig, Kawabata, Koji, Nomoto, Ken'ichi
The discovery of SN 2002ic and subsequent spectroscopic studies have led to the surprising finding that SN 2002ic is a Type Ia supernova with strong ejecta-circumstellar interaction. Here we show...
On the hydrogen emission from the type Ia supernova 2002ic (2003)
Wang, Lifan, Baade, Dietrich, Hoflich, Peter, Wheeler, J. Craig, Kawabata, Koji, Nomoto, Ken'ichi
The discovery of SN 2002ic by the Supernova Factory and the subsequent spectroscopic studies have led to the surprising finding that SN 2002ic is a type Ia supernova with strong ejecta-circumstellar...
Transport of Ionizing Radiation in Terrestrial-like Exoplanet Atmospheres (2003)
Smith, David S., Scalo, John, Wheeler, J. Craig
(Abridged) The propagation of ionizing radiation through model atmospheres of terrestrial-like exoplanets is studied for a large range of column densities and incident photon energies using a Monte...
Smith, David S., Scalo, John, Wheeler, J. Craig
(Abridged) We show that sizeable fractions of incident ionizing radiation from stochastic astrophysical sources can be redistributed to biologically and chemically important UV wavelengths, a...
Spectropolarimetry of SN 2001el in NGC 1448: Asphericity of a Normal Type Ia Supernova (2003)
Wang, Lifan, Baade, Dietrich, Hoeflich, Peter, Khokhlov, Alexei, Wheeler, J. Craig, Kasen, Daniel, ...
High-quality spectropolarimetry (range 417-860 nm; spectral resolution 1.27 nm and 0.265 nm/pixel) of the SN Ia 2001el were obtained with the ESO Very Large Telescope Melipal (+ FORS1) at 5 epochs....
Kasen, Daniel, Nugent, Peter, Wang, Lifan, Howell, D. A., Wheeler, J. Craig, Hoeflich, Peter, ...
SN 2001el is the first normal Type Ia supernova to show a strong, intrinsic polarization signal. In addition, during the epochs prior to maximum light, the CaII IR triplet absorption is seen...
Magnetic Field in Supernovae (2002)
Akiyama, Shizuka, Wheeler, J. Craig
A relatively modest value of the initial rotation of the iron core, a period of ~ 6-31 s, will give a very rapidly rotating protoneutron star and hence strong differential rotation with respect to...
Interaction between the Northeastern Boundary of Sgr A East and Giant Molecular Clouds (2002)
Lee, Sungho, Pak, Soojong, Davis, Christopher J., Herrnstein, Robeson M., Geballe, T. R., Ho, Paul T. P., ...
We have detected the v=1-0 S(1) (2.1218 um) and v=2-1 S(1) (2.2477 um) lines of H_2 in the Galactic centre, in a 90 x 27 arcsec region between the northeastern boundary of the non-thermal source, Sgr...
Observations and Theory of Supernovae (2002)
This Resource Letter provides a guide to the literature on the observations of supernovae and the theory of their explosion mechanisms. Journal articles and books are cited for the following topics:...
The Magnetorotational Instability in Core Collapse Supernova Explosions (2002)
Akiyama, Shizuka, Wheeler, J. Craig, Meier, David L., Lichtenstadt, Itamar
We investigate the action of the magnetorotational instability (MRI) in the context of iron-core collapse. Exponential growth of the field on the rotation time scale by the MRI will dominate the...
Carbon Monoxide in the Type Ic SN 2000ew (2002)
Gerardy, Christopher L., Fesen, Robert A., Nomoto, Ken'ichi, Maeda, Keiichi, Hoeflich, Peter, Wheeler, J. Craig
We present K-band (1.9 -- 2.5 micron) spectra of the Type Ic SN 2000ew observed with IRCS on the Subaru Telescope. These data show the first detection of carbon monoxide (CO) emission in a Type Ic...
Wang, Lifan, Baade, Dietrich, Hoeflich, Peter, Wheeler, J. Craig, Fransson, Claes, Lundqvist, Peter
High-quality spectropolarimetric data of SN 2002ap were obtained with the ESO Very Large Telescope Melipal (+ FORS1) at 3 epochs that correspond to -6, -2, and +1 days for a V maximum of 9 Feb 2002....
Pun, Chun S. J., Michael, Eli, Zhekov, Svetozar A., McCray, Richard, Garnavich, Peter M., Challis, Peter M., ...
We report and interpret HST/STIS long-slit observations of the optical and ultraviolet (1150 - 10270 Angstrom) emission-line spectra of the rapidly brightening Spot 1 on the equatorial ring of SN...
Asymmetric Supernovae from Magneto-Centrifugal Jets (2001)
Wheeler, J. Craig, Meier, David L., Wilson, James R.
Strong toroidal magnetic fields generated in stellar collapse can generate magneto-centrifugal jets in analogy to those found in simulations of black hole accretion and explain why all core collapse...
Pre-Existing Superbubbles as the Sites of Gamma-Ray Bursts (2001)
Scalo, John, Wheeler, J. Craig
According to recent models, gamma-ray bursts apparently explode in a wide variety of ambient densities ranging from ~ 10^{-3} to 30 cm^{-3}. The lowest density environments seem, at first sight, to...
Intermittent Jolts of Galactic UV Radiation: Mutagenetic Effects (2001)
Scalo, John M., Wheeler, J. Craig, Williams, Peter
We estimate the frequency of intermittent hypermutation events and disruptions of planetary/satellite photochemistry due to ultraviolet radiation from core collapse supernova explosions. Calculations...
Evidence for Asphericity in a Subluminous Type Ia Supernova: Spectropolarimetry of SN 1999by (2001)
Howell, D. Andrew, Hoeflich, Peter, Wang, Lifan, Wheeler, J. Craig
We present polarization spectra near maximum light for the strongly subluminous Type Ia supernova 1999by that show that the supernova is intrinsically polarized. SN 1999by has an observed, overall...
HST Spectroscopy of Spot 1 on the Circumstellar Ring of SN 1987A (2000)
Michael, Eli, McCray, Richard, Pun, C. S. J., Garnavich, Peter, Challis, Peter, Kirshner, Robert P., ...
We present ultraviolet and optical spectra of the first bright spot (PA = 29 degrees) on Supernova 1987A's equatorial circumstellar ring taken with the Space Telescope Imaging Spectrograph. We...
Cosmic Catastrophes : Supernovae, Gamma-Ray Bursts, and Adventures in Hyperspace (2000)
0-521-65195-6
Astrophysical and Astrobiological Implications of Gamma-Ray Burst Properties (1999)
Scalo, John, Wheeler, J. Craig
Combining results for the local cosmic rate and mean peak luminosity of GRBs with the cosmic history of the star formation rate, we provide estimates for the local GRB rate per unit blue luminosity...
Detection of CO and Dust Emission in Near-Infrared Spectra of SN 1998S (1999)
Gerardy, Christopher L., Fesen, Robert A., Hoeflich, Peter, Wheeler, J. Craig
Near-infrared spectra (0.95 -- 2.4 micron) of the peculiar Type IIn supernova 1998S in NGC 3877 from 95 to 355 days after maximum light are presented. K-band data taken at days 95 and 225 show the...
Cosmic Explosions: Rapporteur Summary of the 10th Maryland Astrophysics Conference (1999)
This meeting covered the range of cosmic explosions from solar flares to gamma-ray bursts. A common theme is the role of rotation and magnetic fields. A rigorous examination is underway to...
The Type Ib/c Supernova, Gamma-Ray Burst, Soft Gamma-Ray Repeater, Magnetar Connection (1999)
Wheeler, J. Craig, Hoeflich, Peter, Wang, Lifan, Yi, Insu
The polarization of core-collapse supernovae shows that many if not all of these explosions must be strongly bi-polar. The most obvious way to produce this axial symmetry is by the imposition of a...
Bi-polar Supernova Explosions (1999)
Wang, Lifan, Howell, D. Andrew, Hoeflich, Peter, Wheeler, J. Craig
We discuss the optical spectropolarimetry of several core-collapse supernovae, SN 1996cb (Type IIB), SN 1997X (Type Ic), and SN 1998S (Type IIn). The data show polarization evolution of several...
Asymmetric Supernovae, Pulsars, Magnetars, and Gamma-Ray Bursts (1999)
Wheeler, J. Craig, Yi, Insu, Hoeflich, Peter, Wang, Lifan
We outline the possible physical processes, associated timescales, and energetics that could lead to the production of pulsars, jets, asymmetric supernovae, and weak gamma-ray bursts in routine...
Conference Summary: Supernovae and Gamma-Ray Bursts (1999)
There are hints that nearby Type Ia supernovae may be a little different than those at large redshift. Confidence in the conclusion that there is a cosmological constant and an accelerating Universe...
Kim, Soon-Wook, Wheeler, J. Craig, Mineshige, Shin
Some effects of irradiation on time-dependent accretion-disk models for black hole X-ray novae are presented. Two types of irradiation are considered: direct irradiation from the inner hot disk and...
The Distribution of High and Low Redshift Type Ia Supernovae (1999)
Howell, D. Andrew, Wang, Lifan, Wheeler, J. Craig
The distribution of high redshift Type Ia supernovae (SNe Ia) with respect to projected distance from the center of the host galaxy is studied and compared to the distribution of local SNe. The...
The Supernova Gamma-Ray Burst Connection (1999)
Wheeler, J. Craig, Hoeflich, Peter, Wang, Lifan
Study of the polarization of supernovae has suggested that the core collapse process may be intrinsically strongly asymmetric. There is a tentative trend for supernova with smaller envelopes showing...
New HST Observations of High Velocity Lyman Alpha and Balmer Alpha in SNR 1987A (1998)
Michael, Eli, McCray, Richard, Pun, C. S. J., Borkowski, Kazimierz, Garnavich, Peter, Challis, Peter, ...
We describe and model high velocity (~15,000 km/s) Lyman alpha and Balmer alpha emission from supernova remnant 1987A seen in September and October 1997 with the Space Telescope Imaging Spectrograph....
The Supernova-Gamma Ray Burst Connection (1998)
Wang, Lifan, Wheeler, J. Craig
Supernovae 1998bw and its corresponding relativistically expanding radio source are coincident with the \grb source GRB 980425. We show that of six recent SN Ib/c for which an outburst epoch can be...
R-Process in Collapsing O/Ne/Mg Cores (1997)
Wheeler, J. Craig, Cowan, John J., Hillebrandt, Wolfgang
Several circumstantial arguments point to the formation of the third r-process peak at A about 190, near platinum, in stars of mass of about 8-10 solar masses: 1) The delayed production of europium...
Constraints on Torque-Reversing Accretion-Powered X-ray Pulsars (1997)
The observed abrupt torque reversals in X-ray pulsars, 4U 1626-67, GX 1+4, and OAO 1657-415, can be explained by transition in accretion flow rotation from Keplerian to sub-Keplerian, which takes...
Hoeflich, Peter, Thielemann, F. K., Wheeler, J. Craig
The influence of the initial composition of the exploding white dwarf on the nucleosynthesis, light curves and spectra of Type Ia supernovae has been studied in order to evaluate the size of...
Hard X- and Gamma-Rays from Type Ia Supernovae (1997)
Hoeflich, Peter, Wheeler, J. Craig, Khokhlov, Alexei
The gamma-ray light curves and spectra are presented for a set of theoretical Type Ia supernova models including deflagration, detonation, delayed detonation, and pulsating delayed detonations of...
Spectral Analysis of SN 1987A (1997)
Hoeflich, Peter, Wheeler, J. Craig
We examine the current status of the spectral analysis of SN1987A during its early stages. Issues of the shock breakout and UV flash, the density and chemical structure, and masses of different...
Torque Reversal in Accretion-Powered X-ray Pulsars (1997)
Yi, Insu, Wheeler, J. Craig, Vishniac, Ethan T.
Accretion-powered X-ray pulsars 4U 1626-67, GX 1+4, and OAO 1657-415 have recently shown puzzling torque reversals. These reversals are characterized by short time scales, on the order of days,...
Deflagration to Detonation Transition in Thermonuclear Supernovae (1996)
Khokhlov, A. M., Oran, E. S., Wheeler, J. Craig
We derive the criteria for deflagration to detonation transition (DDT) in a Type Ia supernova. The theory is based on the two major assumptions: (i) detonation is triggered via the Zeldovich gradient...
Polarimetry of the Type Ia Supernova SN 1996X (1996)
Wang, Lifan, Wheeler, J. Craig, Hoeflich, Peter
We present broad-band and spectropolarimetry of the Type Ia SN 1996X obtained on April 14, 1996 (UT), and broad-band polarimetry of SN 1996X on May 22,1996, when the supernova was about a week before...
Black Hole X-ray Transients (1996)
The observations and theory of the exciting new class of galactic black hole X-ray transients is reviewed. Seven of these systems have measured mass functions or mass estimates in excess of stable...
Theory of DDT in Unconfined Flames (1996)
Khokhlov, A. M., Oran, E. S., Wheeler, J. Craig
This paper outlines a theoretical approach for predicting the onset of detonation in unconfined turbulent flames which is relevant both to problems of terrestrial combustion and to thermonuclear...
Vishniac, Ethan T., Wheeler, J. Craig
We examine the speed of inward traveling cooling fronts in accretion disks. We show that their speed is determined by the rarefaction wave that precedes them and is approximately $\alpha_F c_{F}...
Broad Band Polarimetry of Supernovae: SN1994D, SN1994Y, SN1994ae, SN1995D and SN 1995H (1996)
Wang, Lifan, Wheeler, J. Craig, Li, Zongwei, Clocchiatti, Alejandro
We have made polarimetric observations of three Type Ia supernovae (SN Ia) and two type II supernovae (SN II). No significant polarization was detected for any of the SN Ia down to the level of...
Hubble Space Telescope Spectroscopic Observations of the Ejecta of SN 1987A at 2000 Days (1996)
Wang, Lifan, Wheeler, J. Craig, Kirshner, Robert P., Challis, Peter M., Filippenko, Alexei V., Fransson, Claes, ...
We have used the Faint Object Spectrograph on the Hubble Space Telescope to observe the spectra of SN 1987A over the wavelength range 2000 -- 8000\ \AA\ on dates 1862 and 2210 days after the...
The Physics of Black Hole X-ray Transients (1996)
Wheeler, J. Craig, Moscoso, M. D., Kusunose, M., Mineshige, S.
The most plausible mechanism for triggering the outburst of black hole candidate X-ray transients is the ionization thermal instability. The disk instability models can give the observed mass flow in...
Binary Evolution of Type Ia Supernovae (1995)
Observations of Type Ia supernovae (SN~Ia) combined with modeling of dynamics, light curves and spectra continue to point to the difficult conclusion that SN~Ia result from degenerate ignition in a...