Zobrazeno 1 - 10
of 1 036
pro vyhledávání: '"Murakawa, K."'
Autor:
Ueta, T., Ladjal, D., Exter, K. M., Otsuka, M., Szczerba, R., Siódmiak, N., Aleman, I., van Hoof, P. A. M., Kastner, J. H., Montez, R., McDonald, I., Wittkowski, M., Sandin, C., Ramstedt, S., De Marco, O., Villaver, E., Chu, Y. -H., Vlemmings, W., Izumiura, H., Sahai, R., Lopez, J. A., Balick, B., Zijlstra, A., Tielens, A. G. G. M., Rattray, R. E., Behar, E., Blackman, E. G., Hebden, K., Hora, J. L., Murakawa, K., Nordhaus, J., Nordon, R., Yamamura, I
This is the first of a series of investigations into far-IR characteristics of 11 planetary nebulae (PNs) under the Herschel Space Observatory Open Time 1 program, Herschel Planetary Nebula Survey (HerPlaNS). Using the HerPlaNS data set, we look into
Externí odkaz:
http://arxiv.org/abs/1403.2494
Autor:
Murakawa, K., Lumsden, S. L., Oudmaijer, R. D., Davies, B., Wheelright, H. E., Hoare, M. G., Ilee, J. D.
We present medium resolution ($R\approx5300$) $K$-band integral field spectroscopy of six MYSOs. The targets are selected from the RMS survey, and we used the NIFS on the Gemini North telescope. The data show various spectral line features including
Externí odkaz:
http://arxiv.org/abs/1309.6139
We investigate the circumstellar dust properties of the oxygen-rich bipolar proto-planetary nebula IRAS 18276-1431 by means of two-dimensional radiative transfer simulations of the circumstellar dust shell. The model geometry is assumed to have a tor
Externí odkaz:
http://arxiv.org/abs/1301.6480
Autor:
Murakawa, K., Izumiura, H.
We investigate the circumstellar dust shell of the water fountain source IRAS 16342-3814. We performed two-dimensional radiative transfer modeling of the dust shell, taking into account previously observed spectral energy distributions (SEDs) and our
Externí odkaz:
http://arxiv.org/abs/1207.4944
Autor:
Richards, A. M. S., Etoka, S., Gray, M. D., Lekht, E. E., Mendoza-Torres, J. E., Murakawa, K., Rudnitskij, G., Yates, J. A.
Cool, evolved stars undergo copious mass loss but the details of how the matter is returned to the ISM are still under debate. We investigated the structure and evolution of the wind at 5 to 50 stellar radii from Asymptotic Giant Branch and Red Super
Externí odkaz:
http://arxiv.org/abs/1207.2583
We investigate the dust size and dust shell structure of the bipolar proto-planetary nebula M 1--92 by means of radiative transfer modeling. Our models consists of a disk and bipolar lobes that are surrounded by an AGB shell, each component having di
Externí odkaz:
http://arxiv.org/abs/0911.5626
Autor:
Driebe, T., Groh, J. H., Hofmann, K. -H., Ohnaka, K., Kraus, S., Millour, F., Murakawa, K., Schertl, D., Weigelt, G., Petrov, R., Wittkowski, M., Hummel, C. A., Bouquin, J. B. Le, Merand, A., Schoeller, M., Massi, F., Stee, P., Tatulli, E.
We obtained near-infrared long-baseline interferometry of IRC+10420 with the AMBER instrument of ESO's Very Large Telescope Interferometer (VLTI) in low and high spectral resolution (HR) mode to probe the photosphere and the innermost circumstellar e
Externí odkaz:
http://arxiv.org/abs/0909.4688
We obtained H-band polarimetric data of IRAS 19312+1950 using the near-infrared camera (CIAO) on the 8 m Subaru telescope. In order to investigate the physical properties of the central star and the nebula, we performed dust radiative transfer modeli
Externí odkaz:
http://arxiv.org/abs/0704.2741
Autor:
Richards, A. M. S., Masheder, M. R. W., van Langevelde, H. J., Cohen, R. J., Gray, M. D., Yates, J. A., Diamond, P. J., Vlemmings, W. H. T., Szymczak, M., Murakawa, K.
Many observations of late-type M stars show large near-spherical circumstellar envelopes, yet planetary nebulae and supernova remnants are frequently axisymmetric. We present VLBI and MERLIN observations of masers around the red supergiant S Per whic
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501028
Autor:
Kostiuk, T., Livengood, T. A., Hewagama, T., Sonnabend, G., Fast, K. E., Murakawa, K., Tokunaga, A. T., Annen, J., Buhl, D., Schmuelling, F.
Saturn's largest satellite, Titan, has stratospheric wind speeds that may be up to ~210 m/sec [1], circling Titan in about a day compared to Titan's slow 16-day rotation. Theoretical models to explain such super-rotating winds are not well constraine
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412664