Stellar population and dust extinction in an ultraluminous infrared galaxy at z=1.135 (2009)
Kawara, K., Oyabu, S., Matsuoka, Y., Yoshii, Y., Minezaki, T., Sameshima, H., ...
We present the detailed optical to far-infrared observations of SST J1604+4304, an ULIRG at z = 1.135. Analyzing the stellar absorption lines, namely, the CaII H & K and Balmer H lines in the optical...
Rho, J., Reach, W. T., Tappe, A., Hwang, U., Slavin, J. D., Kozasa, T., ...
We present Spitzer Infrared Spectrograph and Infrared Array Camera observations of the young supernova remnant E0102 (SNR 1E0102-7219) in the Small Magellanic Cloud. The infrared spectra show strong...
Dust Formation in the young core-collapse supernova remnant E0102 (2009)
Rho, J., Reach, W. T., Tappe, A., Hwang, U., Slavin, J. D., Kozasa, T., ...
We present Spitzer IRS and IRAC observations of the young supernova remnant E0102 (SNR 1E0102.2-7219) in the Small Magellanic Cloud. The infrared spectra show strong ejecta lines of Ne and O, with...
Dust Formation Observed in Young Supernova Remnants with Spitzer (2009)
Rho, J., Reach, W. T., Tappe, A., Rudnick, L., Kozasa, T., Hwang, U., ...
We present dust features and masses observed in young supernova remnants (SNRs) with Spitzer IRS mapping and staring observations of four youngest supernova remnants: SNR 1E102.2-7219 (E0102) in the...
Origin and Nature of Dust in the Early Universe (2008)
Nozawa, T., Kozasa, T., Umeda, H., Hirashita, H., Maeda, K., Nomoto, K., ...
We present recent advances in theoretical studies of the formation and evolution of dust in primordial supernovae (SNe) that are considered to be the main sources of dust in the early universe. Being...
Rho, J., Kozasa, T., Reach, W. T., Smith, J. D., Rudnick, L., DeLaney, T., ...
We performed Spitzer Infrared Spectrograph mapping observations covering nearly the entire extent of the Cassiopeia A supernova remnant (SNR), producing mid-infrared (5.5-35 μm) spectra every...
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 peculiar type Ib supernova 2006jc: a WCO Wolf-Rayet star explosion (2008)
Tominaga, N., Limongi, M., Suzuki, T., Tanaka, M., Nomoto, K., Maeda, K., ...
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)...
Rho, J., Kozasa, T., Reach, W. T., Rudnick, L., DeLaney, T., Smith, J. D., ...
We performed Spitzer Infrared Spectrograph mapping observations covering nearly the entire extent of the Cassiopeia A supernova remnant (SNR), producing mid-infrared (5.5-35 micron) spectra every...
Spitzer IRAC Images and Sample Spectra of Cassiopeia A's Explosion (2006)
Ennis, J. A., Rudnick, L., Reach, W. T., Smith, J. D., Rho, J., DeLaney, T., ...
We present Spitzer IRAC images, along with representative 5.27 to 38.5 micron IRS spectra of the Cassiopeia A supernova remnant. We find that various IRAC channels are each most sensitive to a...
First results from the cosmic dust aggregation experiment CODAG DYNAMICS (2002)
Blum,J., Wurm,G., Poppe,T., Kempf,S., Kozasa,T.
The Cosmic Dust Aggregation Experiment (CODAG), an experimental simulation of the onset of planet formation, was successfully flown on STS-95 (October/November 1998) and on Maser 8 (May 1999). The...
First results from the cosmic dust aggregation experiment CODAG DYNAMICS (2002)
Blum, J., Wurm, G., Poppe, T., Kempf, S., Kozasa, T.
The Cosmic Dust Aggregation Experiment (CODAG), an experimental simulation of the onset of planet formation, was successfully flown on STS-95 (October/November 1998) and on Maser 8 (May 1999). The...
Growth and Form of Planetary Seedlings: Results from a Microgravity Aggregation Experiment (2000)
Blum, J., Wurm, G., Kempf, S., Poppe, T., Klahr, H., Kozasa, T., ...
Growth and form of planetary seedlings: Results from a microgravity aggregation experiment. (2000)
Blum, J., Wurm, G., Kempf, S., Poppe, T., Klahr, H., Kozasa, T., ...
Growth and form of planetary seedlings: Results from a microgravity aggregation experiment. (2000)
Blum, J., Wurm, G., Kempf, S., Poppe, T., Klahr, H., Kozasa, T., ...
Radiation pressure forces of fluffy porous grains (1992)
Mukai, T., Ishimoto, H., Kozasa, T., Blum, J., Greenberg, J.M.
Radiation pressure forces of fluffy porous grains (1992)
Mukai, T., Ishimoto, H., Kozasa, T., Blum, J., Greenberg, J.M.
Kozasa, T, Hepler, J R, Smrcka, A V, Simon, M I, Rhee, S G, Sternweis, P C, ...
A cDNA encoding G16 alpha, the alpha subunit of a heterotrimeric guanine nucleotide-binding protein, was expressed in Sf9 cells using recombinant baculovirus. G16 alpha in membrane extracts of Sf9...
Tsukamoto, T, Toyama, R, Itoh, H, Kozasa, T, Matsuoka, M, Kaziro, Y
Go is a specific class ("other") of signal-transducing heterotrimeric GTP-binding proteins (G proteins) that is expressed in high levels in mammalian brain. We have cloned two different rat cDNAs...
Isolation and characterization of the human Gs alpha gene.
Kozasa, T, Itoh, H, Tsukamoto, T, Kaziro, Y
The gene for Gs alpha (the alpha subunit of the guanine nucleotide-binding protein Gs) was isolated from human genomic libraries using rat Gs alpha cDNA as a probe. Comparison of the nucleotide...
Matsuoka, M, Itoh, H, Kozasa, T, Kaziro, Y
We have isolated cDNA clones from rat C6 glioma cells coding for several guanine nucleotide-binding regulatory protein (G protein) alpha subunits (G alpha). The cDNA clones were then used to isolate...
Itoh, H, Kozasa, T, Nagata, S, Nakamura, S, Katada, T, Ui, M, ...
We have cloned cDNAs encoding alpha subunits of the guanine nucleotide-binding proteins Gs, Gi, and Go and determined their nucleotide sequences. Purified preparations of Gi and Go alpha subunits (Gi...
Takano, K, Yasufuku-Takano, J, Kozasa, T, Nakajima, S, Nakajima, Y
1. Types of G proteins (G protein alpha-subunit subtypes) which mediate the activation of inward rectifier K+ currents by somatostatin (somatotrophin release-inhibiting factor, SRIF) were determined...
Kozasa, T, Hepler, J R, Smrcka, A V, Simon, M I, Rhee, S G, Sternweis, P C, ...
A cDNA encoding G16 alpha, the alpha subunit of a heterotrimeric guanine nucleotide-binding protein, was expressed in Sf9 cells using recombinant baculovirus. G16 alpha in membrane extracts of Sf9...
Tsukamoto, T, Toyama, R, Itoh, H, Kozasa, T, Matsuoka, M, Kaziro, Y
Go is a specific class ("other") of signal-transducing heterotrimeric GTP-binding proteins (G proteins) that is expressed in high levels in mammalian brain. We have cloned two different rat cDNAs...
Isolation and characterization of the human Gs alpha gene.
Kozasa, T, Itoh, H, Tsukamoto, T, Kaziro, Y
The gene for Gs alpha (the alpha subunit of the guanine nucleotide-binding protein Gs) was isolated from human genomic libraries using rat Gs alpha cDNA as a probe. Comparison of the nucleotide...
Matsuoka, M, Itoh, H, Kozasa, T, Kaziro, Y
We have isolated cDNA clones from rat C6 glioma cells coding for several guanine nucleotide-binding regulatory protein (G protein) alpha subunits (G alpha). The cDNA clones were then used to isolate...
Itoh, H, Kozasa, T, Nagata, S, Nakamura, S, Katada, T, Ui, M, ...
We have cloned cDNAs encoding alpha subunits of the guanine nucleotide-binding proteins Gs, Gi, and Go and determined their nucleotide sequences. Purified preparations of Gi and Go alpha subunits (Gi...
Takano, K, Yasufuku-Takano, J, Kozasa, T, Nakajima, S, Nakajima, Y
1. Types of G proteins (G protein alpha-subunit subtypes) which mediate the activation of inward rectifier K+ currents by somatostatin (somatotrophin release-inhibiting factor, SRIF) were determined...