Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Townes, C. H."'
We present an interferometric study of the continuum surface of the red supergiant star Betelgeuse at 11.15 microns wavelength, using data obtained with the Berkeley Infrared Spatial Interferometer each year between 2006 and 2010. These data allow an
Externí odkaz:
http://arxiv.org/abs/1105.3273
The dynamics of the surface and inner atmosphere of the red supergiant star Betelgeuse are the subject of numerous high angular resolution and spectroscopic studies. Here, we present three-telescope interferometric data obtained at 11.15 microns wave
Externí odkaz:
http://arxiv.org/abs/1012.0377
Autor:
Woodruff, H. C., Ireland, M. J., Tuthill, P. G., Monnier, J. D., Bedding, T. R., Danchi, W. C., Scholz, M., Townes, C. H., Wood, P. R.
Publikováno v:
Astrophys.J.691:1328-1336,2009
We present results from a spectro-interferometric study of the Miras o Cet, R Leo and W Hya obtained with the Keck Aperture Masking Experiment from 1998 Sep to 2002 Jul. The spectrally dispersed visibility data permit fitting with circularly symmetri
Externí odkaz:
http://arxiv.org/abs/0811.1642
Autor:
Ragland, S., Traub, W. A., Berger, J. -P., Danchi, W. C., Monnier, J. D., Willson, L. A., Carleton, N. P., Lacasse, M. G., Millan-Gabet, R., Pedretti, E., Schloerb, F. P., Cotton, W. D., Townes, C. H., Brewer, M., Haguenauer, P., Kern, P., Labeye, P., Malbet, F., Malin, D., Pearlman, M., Perraut, K., Souccar, K., Wallace, G.
Publikováno v:
Astrophys.J.652:650-660,2006
We have measured non-zero closure phases for about 29% of our sample of 56 nearby Asymptotic Giant Branch (AGB) stars, using the 3-telescope Infrared Optical Telescope Array (IOTA) interferometer at near-infrared wavelengths (H band) and with angular
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607156
Autor:
Monnier, J. D., Millan-Gabet, R., Tuthill, P. G., Traub, W. A., Carleton, N. P., Foresto, V. Coude du, Danchi, W. C., Lacasse, M. G., Morel, S., Perrin, G., Porro, I. L., Schloerb, F. P., Townes, C. H.
Publikováno v:
Astrophys.J. 605 (2004) 436-461
We present first results of an experiment to combine data from Keck aperture masking and the Infrared-Optical Telescope Array (IOTA) to image the circumstellar environments of evolved stars with ~20 milliarcsecond resolution. The unique combination o
Externí odkaz:
http://arxiv.org/abs/astro-ph/0401363
Publikováno v:
Astrophys.J. 577 (2002) 826-838
The Herbig Ae/Be star LkHalpha 101 has been imaged at high angular resolution at a number of wavelengths in the near-infrared (from 1 to 3 microns) using the Keck 1 Telescope, and also observed in the mid-infrared (11.15 microns) using the U.C. Berke
Externí odkaz:
http://arxiv.org/abs/astro-ph/0206105
Autor:
Nikola, T., Geis, N., Herrmann, F., Madden, S. C., Poglitsch, A., Stacey, G. J., Townes, C. H.
We have mapped the inner 360'' regions of M51 in the 158micron [CII] line at 55'' spatial resolution using the Far-infrared Imaging Fabry-Perot Interferometer (FIFI) on the Kuiper Airborne Observatory (KAO). The emission is peaked at the nucleus, but
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107365
Using the U.C. Berkeley Infrared Spatial Interferometer with an RF filterbank, the first interferometric observations of mid-infrared molecular absorption features of ammonia (NH_3) and silane (SiH_4) with very high spectral resolution (R ~ 100000) w
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007418
The U. C. Berkeley Infrared Spatial Interferometer has measured the mid-infrared visibilities of the carbon star IRC+10216 and the red supergiant VY CMa. The dust shells around these sources have been previously shown to be time-variable, and these n
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007393
Publikováno v:
Astrophys.J.Suppl. 129 (2000) 421-430
The U. C. Berkeley Infrared Spatial Interferometer has been outfitted with a filterbank system to allow interferometric observations of mid-infrared spectral lines with very high spectral resolution (R ~ 10^5). This paper describes the design, implem
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007381