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Browsing by Author "Yamashita, T."
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Geometric configuration around GL 2591 : an infrared reflection nebula and a CS molecular disk
Yamashita, T.; Sato, S.; Tamura, M.; Suzuki, H.; Kaifu, N.; Takano, T.; Mountain, C.M.; Moore, T.J.T.; Gatley, I.; Hough, J. (1987) -
Infrared polarimetry of the reflection nebula near L 1551 IRS 5
Nagata, T.; Yamashita, T.; Sato, S.; Suzuki, H.; Hough, J.; Garden, R.; Gatley, I. (1986)The K-band polarization has been measured in the region extending 30 arcsec to the SW of L 1551 IRS 5. The degree of polarization is exceptionally high, reaching ≡67 per cent. The large polarizations and the azimuthal ... -
Infrared reflection nebula in W75N
Yamashita, T.; Sato, S.; Tamura, M.; Suzuki, H.; Gatley, I.; Hough, J.; Mountain, C.M.; Moore, T.J.T. (1988)A new infrared reflection nebula is identified in the W75N region. The K-band polarization map shows a centrosymmetric pattern of the vectors extending over a region 2 arcmin in size, with large values of degrees of ... -
Near-infrared imaging polarimetry of bipolar nebulae. 3: R-Mon/NGC-2261
Minchin, N.R.; Hough, J.; McCall, A.; Aspin, C.; Yamashita, T.; Burton, M. (1991)High-spatial-resolution polarization vector maps of NGC 2261 at J, H and K show a centrosymmetric pattern, suggesting that it is a near-infrared reflection nebula, illuminated by R Mon. Evidence indicates that R Mon is ... -
Near-infrared imaging polarimetry of bipolar nebulae. 4: GL-490, GL-2789, GL-2136
Minchin, N.R.; Hough, J.; Burton, M.; Yamashita, T. (1991)High spatial resolution near-IR polarization and surface brightness images of the ouflow sources GL 490, GL 2789 and GL 2136 are presented. Polarization vector-maps at J, H and K show centro-symmetric patterns around GL ... -
Polarimetric mapping of a new infrared reflection nebula GGD 27 IRS
Yamashita, T.; Sato, S.; Nagata, T.; Suzuki, H.; Hough, J.; McLean, I.; Garden, R.; Gatley, I. (1987)We report the discovery of an infrared reflection nebula GGD27 IRS, near the optical nebulosity GGD27. It shows a dumbbell-shaped structure with large degrees of polarization, up to 64%, in the K band. From the centrosymmetric ... -
Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)
Hough, J.; Sato, S.; Tamura, M.; Yamashita, T.; McFadzean, A.D.; Rouse, M.F.; Whittet, D.C.B.; Kaifu, N.; Suzuki, H.; Nagata, T.; Gatley, I.; Bailey, J. (1988)Polarization data between 1.2 and 3.8 μm, including spectropolarimetry in the 3-μm ice feature, are presented for the highly reddened field star Elias 16 in the Taurus Dark Cloud. The polarization is observed to increase ... -
Spectropolarimetry of the 3-micron ice feature in molecular clouds. II : GL 2591, GL 2136, W 33A and Elias 29 (Rho Ophiuchi dark cloud)
Hough, J.; Whittet, D.C.B.; Sato, S.; Yamashita, T.; Tamura, M.; Nagata, T.; Aitken, D.; Roche, P.F. (1989)Spectropolarimetric observations in the 3-micron ice band are presented for the infrared sources GL 2591, GL 2136, W 33A and Elias 29 (Rho Ophiuchi dark cloud). Some continuum polarization measurements between 1.2 and 5.0 ...