Cepheids and their 'Cocoons' (ESO 09/06)

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Sue... - 28 Feb 2006 17:58 GMT

Using ESO's Very Large Telescope Interferometer (VLTI) at
Cerro Paranal, Chile, and the CHARA Interferometer at Mount
Wilson, California, a team of French and North American
astronomers has discovered envelopes around three Cepheids,
including the Pole star. This is the first time that matter is found
surrounding members of this important class of rare and very
luminous stars whose luminosity varies in a very regular way.
Cepheids play a crucial role in cosmology, being one of the first
"steps" on the cosmic distance ladder.

Read more at
http://www.eso.org/outreach/press-rel/pr-2006/pr-09-06.html

With kind regards,

The ESO Public Affairs Dept.

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Hexenmeister - 28 Feb 2006 20:53 GMT

> Using ESO's Very Large Telescope Interferometer (VLTI) at
> Cerro Paranal, Chile, and the CHARA Interferometer at Mount
[quoted text clipped - 3 lines]
> surrounding members of this important class of rare and very
> luminous stars

Nonsense. I found it first. Those are planets are the biggest is called
"Androcles". They are not "envelopes".

First indeed! Check Google.
Androcles.

whose luminosity varies in a very regular way.

> Cepheids play a crucial role in cosmology, being one of the first
> "steps" on the cosmic distance ladder.
[quoted text clipped - 5 lines]
>
> The ESO Public Affairs Dept.

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Natural Science Forum / Physics / Relativity / February 2006

Cepheids and their 'Cocoons' (ESO 09/06)