Tables 7-14 are only available in electronic form at http://www.aanda.org

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At present at Institut d'Estudis Espacials de Catalunya (IEEC), c/. Gran Capità 2-4, 08034 Barcelona, Spain.

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... published

http://www.am.ub.es/~dfernand/YLA

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... $\xi ,\eta ,\zeta$ )

$\xi$ points towards Galactic centre, $\eta$ in the direction of Galactic rotation and $\zeta$ towards the Galactic north pole.

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...

A variation of $\pm 2 Se_{\overline{W}}$ in $\overline{W}$ implies a change in the vertical position ( $\zeta^\prime$ ) with time, thus slightly affecting the radial and azimuthal forces acting on the star (see Eq. (9) in Asiain et al. 1999b; and Eqs. (1), (3) and (5) in Allen & Santillán 1991). However, we have confirmed that this effect results in a change in position of less than 10^-3 pc in the $(\xi^\prime,\eta^\prime)$ plane in the present case.

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... years

After considerable slowing during the first 3-5 pc of distance covered, the wave front of a typical supernova moves at $\sim$ 15-45 km s^-1 when it is at a distance of $\sim$ 10-100 pc from the explosion site (see Vanhala & Cameron 1998; and Preibisch et al. 2002). A velocity of 30 km s^-1 is equal to 30.7 pc Myr^-1.

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... webpage

http://www.am.ub.es/~dfernand/YLA/

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... webpage

http://www.am.ub.es/~dfernand/YLA/

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