Výsledky vyhledávání - "Thompson, Robert R."

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Interferometric Observations of Explosive Variables: V838 Mon, Nova Aql 2005, and RS Oph

Autor: Lane, Benjamin F., Retter, Alon, Eisner, Joshua A., Thompson, Robert R., Muterspaugh, Matthew W.

During the last two years we have used the Palomar Testbed Interferometer to observe several explosive variable stars, including V838 Monocerotis, V1663 Aquilae and recently RS Ophiuchi. We observed V838 Monocerotis approximately 34 months after its

Externí odkaz: http://arxiv.org/abs/astro-ph/0606182

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Lifting the Iron Curtain : Toward an Understanding of the Iron Stars XX Oph and AS 325

Autor: Cool, Richard J., Howell, Steve B., Pena, Maria, Adamson, Andy J., Thompson, Robert R.

We present new optical, near infrared, and archival ultraviolet observations of XX Ophiuchi and AS 325, two proposed iron stars. These unusual stars have optical spectra dominated by emission lines arising from hydrogen as well as ionized metals such

Externí odkaz: http://arxiv.org/abs/astro-ph/0502336

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Altair's Oblateness and Rotation Velocity

Autor: van Belle, Gerard T., Ciardi, David R., Thompson, Robert R., Akeson, Rachel L., Lada, Elizabeth A.

We present infrared interferometric angular size measurements for the A7IV-V star Altair which indicate a non-circular projected disk brightness distribution. Given the known rapid rotation of this star, we model the data as arising from an elongated

Externí odkaz: http://arxiv.org/abs/astro-ph/0106184

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On the Near-Infrared Size of Vega

Autor: Ciardi, David R., van Belle, Gerard T., Akeson, Rachel L., Thompson, Robert R., Lada, Elizabeth A., Howell, Steve B.

Near-infrared (2.2 um) long baseline interferometric observations of Vega are presented. The stellar disk of the star has been resolved, and the data have been fitted with a limb darkened stellar disk of diameter Theta_{LD} = 3.28 +/- 0.01 mas. The d

Externí odkaz: http://arxiv.org/abs/astro-ph/0105561

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