Y. Nakajima

Publication List Details

Period

1977 - 2008

Number

113

Co-Authors

Young Brown Dwarfs in the Core of the W3 Main Star-Forming Region (2008)

Ojha, D. K., Tamura, M., Nakajima, Y., Saito, H., Pandey, A. K., Ghosh, S. K., ...

We present the results of deep and high-resolution (FWHM ~ 0".35) JHK NIR observations with the Subaru telescope, to search for very low mass young stellar objects (YSOs) in the W3 Main star-forming...

Distillation of Liquid Xenon to Remove Krypton (2008)

Abe, K., Hosaka, J., Iida, T., Ikeda, M., Kobayashi, K., Koshio, Y., ...

A high performance distillation system to remove krypton from xenon was constructed, and a purity level of Kr/Xe = $\sim 3 \times 10^{-12}$ was achieved. This development is crucial in facilitating...

Magneto-transport properties governed by the antiferromagnetic fluctuations in heavy fermion superconductor CeIrIn$_{5}$ (2008)

Nakajima, Y., Shishido, H., Nakai, H., Shibauchi, T., Hedo, M., Uwatoko, Y., ...

In quasi-two dimensional Ce(Ir,Rh)In$_5$ system, it has been suggested that the phase diagram contains two distinct domes with different heavy fermion superconducting states. We here report the...

Wide-Field Infrared Imaging Polarimetry of the NGC 6334 Region: A Nest of Infrared Reflection Nebulae (2008)

Hashimoto, J., Tamura, M., Kandori, R., Kusakabe, N., Nakajima, Y., Kurita, M., ...

We report the detection of eighteen infrared reflection nebulae (IRNe) in the $J$, $H$, & $Ks$ linear polarimetric observations of the NGC 6334 massive star-formation complex, of which 16 IRNe are...

Scintillation yield of liquid xenon at room temperature (2008)

Ueshima, K., Abe, K., Iida, T., Ikeda, M., Kobayashi, K., Koshio, Y., ...

The intensity of scintillation light emission from liquid xenon at room temperature was measured. The scintillation light yield at 1 deg. was measured to be 0.64 +/- 0.02 (stat.) +/- 0.06 (sys.) of...

Two-gap superconductivity in single crystal Lu$_2$Fe$_3$Si$_5$ from penetration depth measurements (2007)

Gordon, R., Vannette, M. D., Martin, C., Nakajima, Y., Tamegai, T., Prozorov, R.

Single crystal of Lu$_2$Fe$_3$Si$_5$ was studied with the tunnel-diode resonator technique in Meissner and mixed states. Temperature dependence of the superfluid density provides strong evidence for...

Specific heat evidence for two-gap superconductivity in ternary-iron silicide Lu$_{2}$Fe$_{3}$Si$_{5}$ (2007)

Nakajima, Y., Nakagawa, T., Tamegai, T., Harima, H.

We report low-temperature specific heat studies on single-crystalline ternary-iron silicide superconductor Lu$_{2}$Fe$_{3}$Si$_{5}$ with$T_c$ = 6.1 K down to $\sim T_c/20$. We confirm a reduced...

Simultaneous X-ray, radio, near-infrared, and optical monitoring of Young Stellar Objects in the Coronet cluster (2007)

Forbrich, J., Preibisch, Th., Menten, K. M., Neuhäuser, R., Walter, F. M., Tamura, M., ...

Multi-wavelength (X-ray to radio) monitoring of Young Stellar Objects (YSOs) can provide important information about physical processes at the stellar surface, in the stellar corona, and/or in the...

Near-Infrared Imaging Polarimetry of the Star Forming Region NGC 2024 (2007)

Kandori, R., Tamura, M., Kusakabe, N., Nakajima, Y., Nagayama, T., Nagashima, C., ...

We conducted wide-field JHKs imaging polarimetry toward NGC 2024. We found a prominent and extended polarized nebula over NGC 2024, and constrained the location of illuminating source of the nebula...

The UKIRT infrared deep sky survey early data release (2006)

Dye, S., Warren, S.J., Hambly, N.C., Cross, N.J.G., Hodgkin, S.T., Irwin, M.J., ...

This paper defines the UKIRT Infrared Deep Sky Survey (UKIDSS) Early Data Release (EDR). UKIDSS is a set of five large near-infrared surveys being undertaken with the United Kingdom Infrared...

Near Infrared Polarization Images of the Orion Nebula (2006)

Tamura, M., Kandori, R., Kusakabe, N., Nakajima, Y., Hashimoto, J., Nagashima, C., ...

Wide-field (~8' x 8') and deep near-infrared (JHKs bands) polarization images of the Orion nebulae (IRNe) around young stellar objects (YSOs), both massive and low-mass. We found the IRNe around both...

Non-Fermi liquid behavior in the magnetotransport of CeMIn5 (M: Co and Rh): Striking similarity between quasi 2D heavy fermion and high-Tc cuprates (2006)

Nakajima, Y., Shishido, H., Nakai, H., Shibauch, T., Behnia, K., Izawa, K., ...

We present a systematic study of the dc-resistivity, Hall effect, and magnetoresistance in the normal state of quasi 2D heavy fermion superconductors CeMIn5 (M: Rh and Co) under pressure. Here the...

Evolution of Hall coefficient in two-dimensional heavy fermion CeCoIn$_5$ (2006)

Nakajima, Y., Izawa, K., Matsuda, Y., Behnia, K., Kontani, H., Hedo, M., ...

We report on the pressure dependence of the Hall coefficient $R_H$ in quasi-2D heavy fermion CeCoIn$_5$. At ambient pressure, below a temperature associated with the emergence of non-Fermi liquid...

Near-infrared polarization images of the Orion Nebula (2006)

Tamura, M, Kandori, R, Hough, J. H, Lucas, P, Chrysostomou, A, Bailey, J, ...

Wide-field (~8' × 8') and deep near-infrared (JHK bands) polarization images of the Orion Nebula are presented. These data revealed various circumstellar structures as infrared reflection nebulae...

Near-infrared polarization images of the Orion Nebula (2006)

Tamura, M, Kandori, R, Hough, J. H, Lucas, P, Chrysostomou, A, Bailey, J, ...

Wide-field (~8' × 8') and deep near-infrared (JHK bands) polarization images of the Orion Nebula are presented. These data revealed various circumstellar structures as infrared reflection nebulae...

Anomalous quasiparticle transport in the superconducting state of CeCoIn5 (2005)

Kasahara, Y., Nakajima, Y., Izawa, K., Matsuda, Y., Behnia, K., Shishido, H., ...

We report on a study of thermal Hall conductivity k_xy in the superconducting state of CeCoIn_5. The scaling relation and the density of states of the delocalized quasiparticles, both obtained from...

Thermal transport in the hidden-order state of URu$_{2}$Si$_{2}$ (2004)

Behnia, K., Bel, R., Kasahara, Y., Nakajima, Y., Jin, H., Aubin, H., ...

We present a study of thermal conductivity in the normal state of the heavy-fermion superconductor URu$_{2}$Si$_{2}$. Ordering at 18K leads to a steep increase in thermal conductivity and (in...

V1647 Orionis (IRAS 05436-0007) : A New Look at McNeil's Nebula (2004)

Ojha, D. K., Kusakabe, N., Tamura, M., Nakajima, Y., Fukagawa, M., Sugitani, K., ...

We present a study of the newly discovered McNeil's nebula in Orion using the JHKs-band simultaneous observations with the near-infrared (NIR) camera SIRIUS on the IRSF 1.4m telescope. The cometary...

A near-infrared study of the NGC 7538 star forming region (2004)

Ojha, D. K., Tamura, M., Nakajima, Y., Fukagawa, M., Sugitani, K., Nagashima, C., ...

We present sub-arcsecond (FWHM ~ 0".7), NIR JHKs-band images and a high sensitivity radio continuum image at 1280 MHz, using SIRIUS on UH 88-inch telescope and GMRT. The NIR survey covers an area of...

Deep Near Infrared Imaging toward Vela Molecular Ridge C - 1: A Remarkable Embedded Cluster in RCW 36 - (2004)

Baba, D., Nagata, T., Nagayama, T., Nagashima, C., Kato, D., Kurita, M., ...

We present deep near-infrared (J, H, Ks) images toward an embedded cluster which lies in a C18O clump in the cloud C of the Vela Molecular Ridge. This cluster has at least ~ 350 members and a radius...

Deep near-infrared observations of W3 Main star forming region (2004)

Ojha, D. K., Tamura, M., Nakajima, Y., Fukagawa, M., Sugitani, K., Nagashima, C., ...

We present a deep JHKs-band imaging survey of the W3 Main star forming region, using the near-infrared camera, SIRIUS, mounted on the University of Hawaii 2.2m telescope. The near-infrared survey...

GLOBAL AND STRICT CURVE FITTING METHOD (2004)

Nakajima, Y., Mori, S.

Microsoft, Motorola, Siemens, Hitachi, IAPR, NICI, IUF To find a global and smooth curve fitting, cubic B­Spline method and gathering­ line methods are investigated. When segmenting and recognizing...

Giant Nernst effect in a Kondo lattice close to a quantum critical point (2003)

Bel, R., Behnia, K., Nakajima, Y., Izawa, K., Matsuda, Y., Shishido, H., ...

We present a study of Nernst and Seebeck coefficients of the heavy-fermion superconductor CeCoIn$_{5}$. Below 18 K, concomitant with a field-dependent Seebeck coefficient, a large sub-linear Nernst...

Microscopic modeling of intersubband resonances in InAs/AlSb quantum wells (2003)

J. Li, K. I. Kolokolov, C. Z. Ning, D. C. Larrabee, G. A. Khodaparast, J. Kono, ...

Linear absorption spectra from intersubband resonance in InAs/AlSb quantum wells are analyzed theoretically using the intersubband semiconductor Bloch equation approach. Our model goes beyond the...

An Optical and Near Infrared Search for Brown Dwarfs in the Pleiades Cluster (2003)

Nagashima, C., Dobbie, P. D., Nagayama, T., Nakajima, Y., Nagata, T., Tamura, M., ...

We have carried out a brown dwarf search over an area of 14' x 23' near the central portion of the Pleiades open cluster in five optical and near infrared bands (i', Z, J, H, Ks) with 10 sigma...

Normal-state Hall Angle and Magnetoresistance in quasi-2D Heavy Fermion CeCoIn_5 near a Quantum Critical Point (2003)

Nakajima, Y., Izawa, K., Matsuda, Y., Uji, S., Terashima, T., Shishido, H., ...

The normal-state Hall effect and magnetoresisitance (MR) have been measured in the quasi-2D heavy fermion superconductor CeCoIn_5. In the non-Fermi liquid region where the reistivity rho_xx exhibits...

Evolution of Elliptical Galaxies at z >~ 1 Revealed from a Large, Multicolor Sample of Extremely Red Objects (2002)

Miyazaki, M., Shimasaku, K., Kodama, T., Okamura, S., Furusawa, H., Ouchi, M., ...

We study the evolution of elliptical galaxies at z >~ 1 on the basis of a sample of 247 Extremely Red Objects (EROs) with R-Ks >= 3.35 (AB) and Ks

Multiple Superconducting Phases in New Heavy Fermion Superconductor PrOs4Sb12 (2002)

Izawa, K., Nakajima, Y., Goryo, J., Matsuda, Y., Osaki, S., Sugawara, H., ...

The superconducting gap structure of recently discovered heavy fermion superconductor PrOs4Sb12 was investigated by using thermal transport measurements in magnetic field rotated relative to the...

Gap Function with Point Nodes in Borocarbide Superconductor YNi2B2C (2002)

Izawa,K., Kamata,K., Nakajima,Y., Matsuda,Y., Watanabe,T., Nohara,M., ...

To determine the superconducting gap function of YNi2B2C, the c-axis thermal conductivity kappa(zz) was measured in H rotated in various directions. The angular variation of kappa(zz) in H rotated...

Intersubband Transitions in Narrow InAs/AlSb Quantum Wells (2002)

D. C. Larrabee, J. Tang, M. Liang, G. A. Khodaparast, J. Kono, K. Ueda, ...

We have investigated intersubband transitions (ISBTs) in InAs/AlSb multiple quantum wells with well widths from 2.1 to 10 nm. The ISBT energy increased with decreasing well width and temperature. To...

Gap Function with Point Nodes in Borocarbide Superconductor YNi_2B_2C (2002)

Izawa, K., Kamata, K., Nakajima, Y., Matsuda, Y., Watanabe, T., Nohara, M., ...

To determine the superconducting gap function of a borocarbide superconductor YNi_2B_2C, the c-axis thermal conductivity kappa_zz was measured in a magnetic field rotated in various directions...

Gap Function with Point Nodes in Borocarbide Superconductor YNi2B2C (2002)

Izawa, K., Kamata, K., Nakajima, Y., Matsuda, Y., Watanabe, T., Nohara, M., ...

To determine the superconducting gap function of YNi2B2C, the c-axis thermal conductivity kappa(zz) was measured in H rotated in various directions. The angular variation of kappa(zz) in H rotated...

Fracture Toughness Behaviour of Service-Exposed Type 321 Stainless Steel at Room and Elevated Temperature Under Normal and Low Straining Rates. (1998)

Nakajima, Y., Iino, Y., Suzuki, M.

The ductile fracture toughness behavior in air in the C-L orientation of type 321 stainless steel pipe service-exposed at 723 to 823 K for approximately 51 000 h (the used material) was characterized...

Development of the high-gradient electrostatic accelerator techniques in the Kyushu University tandem (1977)

Isoya, A., Kuroyanagi, T., Nakajima, Y., Nakashima, T., Maki, T., Kato, N., ...

At Kyushu university a 10 MV tandem accelerator is just completed and being tested for the overall performance. The construction of this machine was started five years ago and the design principle...