Anupama, G. C., Sahu, D. K., Gurugubelli, U. K., Prabhu, T. P., Tominaga, N., Tanaka, M., ...
We present optical UBVRI photometric and spectroscopic data of the type Ibn supernova SN 2006jc, until the onset of the dust forming phase. The optical spectrum shows a blue continuum and is...
Nucleosynthesis in Electron Capture Supernovae of AGB Stars (2008)
Wanajo, S., Nomoto, K., Janka, H. -Th., Kitaura, F. S., Mueller, B.
We examine nucleosynthesis in the electron capture supernovae of progenitor AGB stars with an O-Ne-Mg core (with the initial stellar mass of 8.8 M_\odot). Thermodynamic trajectories for the first 810...
Takigawa, A., Miki, J., Tachibana, S., Huss, G. R., Tominaga, N., Umeda, H., ...
Several short-lived radionuclides (SLRs) were present in the early solar system, some of which should have formed just prior to or soon after the solar system formation. Stellar nucleosynthesis has...
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...
Nomoto, K., Tominaga, N., Tanaka, M., Maeda, K., Umeda, H.
The connection between the long GRBs and Type Ic Supernovae (SNe) has revealed the interesting diversity: (i) GRB-SNe, (ii) Non-GRB Hypernovae (HNe), (iii) X-Ray Flash (XRF)-SNe, and (iv) Non-SN GRBs...
Nozawa, T., Kozasa, T., Tominaga, N., Sakon, I., Tanaka, M., Suzuki, T., ...
SN 2006jc is a peculiar supernova (SN), in which the formation of dust has been confirmed at an early epoch of ~50 days after the explosion. We investigate the possibility of such an earlier...
The broad-lined type Ic supernova 2003jd (2008)
Valenti, S., Benetti, S., Cappellaro, E., Patat, F., Mazzali, P., Turatto, M., ...
The Peculiar Type Ib Supernova 2006jc: A WCO Wolf-Rayet Star Explosion (2007)
Tominaga, N., Limongi, M., Suzuki, T., Tanaka, M., Nomoto, K., Maeda, K., ...
We present a theoretical model for Type Ib supernova (SN) 2006jc. We calculate the evolution of the progenitor star, hydrodynamics and nucleosynthesis of the SN explosion, and the SN bolometric light...
Sakon, I., Wada, T., Ohyama, Y., Ishihara, D., Tanabé, T., Kaneda, H., ...
We present our latest results on near- to mid- infrared observation of SN2006jc at 200 days after the discovery using the Infrared Camera (IRC) on board $AKARI$. The near-infrared (2--5$\mu$m)...
The Broad-lined Type Ic SN 2003jd (2007)
Valenti, S., Benetti, S., Cappellaro, E., Patat, F., Mazzali, P., Turatto, M., ...
The results of a world-wide coordinated observational campaign on the broad-lined Type Ic SN 2003jd are presented. In total, 74 photometric data points and 26 spectra were collected using 11...
Detection of circumstellar material in a normal Type Ia Supernova (2007)
Patat, F., Chandra, P., Chevalier, R., Justham, S., Podsiadlowski, Ph., Wolf, C., ...
Type Ia supernovae are thought to be thermonuclear explosions of accreting white dwarfs that reach a critical mass limit. Despite their importance as cosmological distance indicators, the nature of...
Nucleosynthesis in Core-Collapse Supernovae and GRB--Metal-Poor Star Connection (2007)
Nomoto, K., Tominaga, N., Tanaka, M., Maeda, K., Umeda, H.
We review the nucleosynthesis yields of core-collapse supernovae (SNe) for various stellar masses, explosion energies, and metallicities. Comparison with the abundance patterns of metal-poor stars...
Maeda, K., Tanaka, M., Nomoto, K., Tominaga, N., Kawabata, K., Mazzali, P. A., ...
Late phase nebular spectra and photometry of Type Ib Supernova (SN) 2005bf taken by the Subaru telescope at ~ 270 and ~ 310 days since the explosion are presented. Emission lines ([OI]6300, 6363,...
Immler, S., Brown, P. J., Milne, P., Dessart, L., Mazzali, P. A., Landsman, W., ...
We present results on the X-ray and optical/UV emission from the type IIP SN 2006bp and the interaction of the SN shock with its environment, obtained with the X-Ray Telescope (XRT) and UV/Optical...
Diversity of the Supernova - Gamma-Ray Burst Connection (2007)
Nomoto, K., Tominaga, N., Tanaka, M., Maeda, K., Suzuki, T., Deng, J. S., ...
The connection between the long Gamma Ray Bursts (GRBs) and Type Ic Supernovae (SNe) has revealed interesting diversity. We review the following types of the GRB-SN connection. (1) GRB-SNe: The three...
Constraints on Type Ib/c and GRB Progenitors (2007)
Fryer, C. L., Mazzali, P. A., Prochaska, J., Cappellaro, E., Panaitescu, A., Berger, E., ...
Although there is strong support for the collapsar engine as the power source of long-duration gamma-ray bursts (GRBs), we still do not definitively know the progenitor of these explosions. Here we...
Detection of circumstellar material in a normal type Ia supernova (2007)
Patat, F., Chandra, P., Chevalier, R., Justham, S., Podsialkowski, P., Wolf, C., ...
Asymmetric Explosion of Type Ia Supernovae as Seen from Near Infrared Observations (2006)
Motohara, K., Maeda, K., Gerardy, C. L., Nomoto, K., Tanaka, M., Tominaga, N., ...
We present near-infrared spectra of late phase (>200 d) Type Ia supernovae (SNe Ia) taken at the Subaru telescope. The [Fe II] line of SN 2003hv shows a clear flat-topped feature, while that of SN...
Galactic chemical evolution: Carbon through Zinc (2006)
Kobayashi, C., Umeda, H., Nomoto, K., Tominaga, N., Ohkubo, T.
We calculate the evolution of heavy element abundances from C to Zn in the solar neighborhood adopting our new nucleosynthesis yields. Our yields are calculated for wide ranges of metallicity...
Immler, S., Brown, P. J., Milne, P., Petre, R., Gehrels, N., ...
We present a study of the early (days to weeks) X-ray and UV properties of eight Type Ia supernovae (SNe Ia) which have been extensively observed with the X-Ray Telescope (XRT) and UV/Optical...
SN 2005cs in M51 I. The first month of evolution of a subluminous SN II plateau (2006)
Pastorello, A., Sauer, D., Taubenberger, S., Mazzali, P. A., Nomoto, K., Kawabata, K. S., ...
Early time optical observations of supernova (SN) 2005cs in the Whirlpool Galaxy (M51), are reported. Photometric data suggest that SN 2005cs is a moderately under-luminous Type II plateau supernova...
The properties of the "standard" type Ic supernova 1994I from spectral models (2006)
Sauer, D. N., Mazzali, P. A., Deng, J., Valenti, S., Nomoto, K., Filippenko, A. V.
The properties of the type Ic supernova SN 1994I are re-investigated. This object is often referred to as a "standard SN Ic" although it exhibited an extremely fast light curve and unusually blue...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P. A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not...
The properties of the 'standard' type Ic supernova 1994I from spectral models (2006)
Sauer, D. N., Mazzali, P. A., Deng, J., Valenti, S., Nomoto, K., Filippenko, A. V.
SN 2005cs in M51 – I. The first month of evolution of a subluminous SN II plateau (2006)
Pastorello, A., Sauer, D., Taubenberger, S., Mazzali, P. A., Nomoto, K., Kawabata, K. S., ...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P. A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P.A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not...
Diversity of the supernova-gamma-ray burst connection (2006)
Nomoto, K., Tominaga, N., Tanaka, M., Maeda, K., Suzuki, T., Deng, J. S., ...
Afterglow spectrum of a gamma-ray burst with the highest known redshift z=6.295 (2005)
Kawai, N., Kosugi, G., Aoki, K., Yamada, T., Totani, T., Ohta, K., ...
Gamma-ray bursts (GRBs) and their afterglows have been proposed as an excellent probe to study the evolution of cosmic star formation, the reionization of the intergalactic medium, and the metal...
Optical Emission from Aspherical Supernovae and the Hypernova SN 1998bw (2005)
Maeda, K., Mazzali, P. A., Nomoto, K.
A fully 3D Monte Carlo scheme is applied to compute optical bolometric light curves for aspherical (jet-like) supernova explosion models. Density and abundance distributions are taken from...
Wanajo, S., Nomoto, K., Iwamoto, N., Ishimaru, Y., Beers, T. C.
Recent spectroscopic studies have revealed the presence of numerous carbon-enhanced, metal-poor stars with [Fe/H] < -2.0 that exhibit strong enhancements of s-process elements. These stars are...
Frebel, A., Aoki, W., Christlieb, N., Ando, H., Asplund, M., Barklem, P. S., ...
We describe the discovery of HE 1327-2326, a dwarf or subgiant with [Fe/H]}=-5.4. The star was found in a sample of bright metal-poor stars selected from the Hamburg/ESO survey. Its abundance pattern...
Anupama, G. C., Sahu, D. K., Deng, J., Nomoto, K., Tominaga, N., Tanaka, M., ...
We present BVRI photometry and optical spectroscopy of SN 2005bf near light maximum. The maximum phase is broad and occurred around 2005 May 7, about forty days after the shock breakout. SN 2005bf...
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...
HE1327-2326, an unevolved star with [Fe/H] (2005)
Aoki, W., Frebel, A., Christlieb, N., Norris, J. E., Beers, T. C., Minezaki, T., ...
We present the elemental abundances of HE1327-2326, the most iron-deficient star known, determined from a comprehensive analysis of spectra obtained with the Subaru Telescope High Dispersion...
Nebular Spectra of SN 1998bw Revisited: Detailed Study by One and Two Dimensional Models (2005)
Maeda, K., Nomoto, K., Mazzali, P. A., Deng, J.
Refined one- and two-dimensional models for the nebular spectra of the hyper-energetic Type Ic supernova (SN) 1998bw, associated with the gamma-ray burst GRB980425, from 125 to 376 days after B-band...
Ohkubo, T., Umeda, H., Maeda, K., Nomoto, K., Suzuki, T., Tsuruta, S., ...
We calculate evolution, collapse, explosion, and nucleosynthesis of Population III very-massive stars with 500$M_{\odot}$ and 1000$M_{\odot}$. Presupernova evolution is calculated in spherical...
Hypernovae, Black-Hole-Forming Supernovae, and First Stars (2005)
Nomoto, K., Tominaga, N., Umeda, H., Maeda, K., Ohkubo, T., Deng, J., ...
Recent studies of core-collapse supernovae have revealed the existence of two distinct classes of massive supernovae (SNe): 1) very energetic SNe (Hypernovae), whose kinetic energy (KE) exceeds...
An Asymmetric, Energetic Type Ic Supernova Viewed Off-Axis, and a Link to Gamma-Ray Bursts (2005)
Mazzali, P. A., Kawabata, K. S., Maeda, K., Nomoto, K., Filippenko, A. V., Ramirez-Ruiz, E., ...
Type Ic supernovae, the explosions following the core collapse of massive stars that have previously lost their hydrogen and helium envelopes, are particularly interesting because of the link with...
Nucleosynthetic signatures of the first stars (2005)
Frebel, A., Aoki, W., Christlieb, N., Ando, H., Asplund, M., Barklem, P.S., ...
Deng, J., Tominaga, N., Mazzali, P. A., Maeda, K., Nomoto, K.
The net optical light curves and spectra of the supernova (SN) 2003dh are obtained from the published spectra of GRB 030329, covering about 6 days before SN maximum to about 60 days after. The bulk...
Mattila, S., Lundqvist, P., Sollerman, J., Kozma, C., Baron, E., Fransson, C., ...
We present early time high-resolution (VLT/UVES) and late time low-resolution (VLT/FORS) optical spectra of the normal type Ia supernova, SN 2001el. The high-resolution spectra were obtained at -9...
Anupama, G. C, Sahu, D. K, Deng, J, Nomoto, K, Tominaga, N, Tanaka, M, ...
We present BVRI photometry and optical spectroscopy of SN 2005bf near maximum light. The maximum phase is broad and occurred around 2005 May 7, about 40 days after the shock breakout. SN 2005bf has a...
Mazzali, P. A., Benetti, S., Stehle, M., Branch, D., Deng, J., Maeda, K., ...
The near-maximum spectra of the Type Ia SN 1999ee are reviewed. Two narrow absorption features corresponding to the strongest component of the CaII IR triplet appear in the spectra from 7 days before...