Download 2005: Past Meets Present in Astronomy And Astrophysics: by Jose Afonso, Nuno Santos, Andre Moitinho, Rui Agostinho PDF

By Jose Afonso, Nuno Santos, Andre Moitinho, Rui Agostinho

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Extra info for 2005: Past Meets Present in Astronomy And Astrophysics: Proceedings of the 15th Portuguese National Meeting

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2. 3. 4. 5. , Brown, T. , Barman, T. , Santos, N. , ApJ 529, L45 (2000) 6. , Brown, T. , Noyes, R. , and Gilliland, R. , ApJ 568, 377 (2002) 7. , Allen, L. , and Megeath, S. , ApJ 626, 523 (2005) 8. , Richardson, L. , Nature 434, 740 (2005) 9. , A&A 417, 353 (2004) 10. Gaudi, B. , ApJ 623, 472 (2005) 11. , Annual Review of Earth and Planetary Sciences 33, 493 (2005) 12. , A&A 431, 1129 (2005) 13. Henry, G. , Marcy, G. , Butler, R. , and Vogt, S. , ApJ 529, L41 (2000) 14. , Nature, 421, 507 (2003) 15.

1 we represent the radial field strength as a function of colatitude for different radial distances from the stellar centre for the two cases considered. The two radial fields latitudinal distributions are very distinct near the surface of the star, but rapidly become similar approaching the split monopolar field. For surface fields concentrated near the poles, the field lines that emerge at high latitudes are driven toward low latitudes (cf. Fig. 2). 5 Figure 1. Fully open fields. The radial field latitudinal distribution: at the surface (full line), at r = 4R» (short dashed) and at r = 8R* (long dashed).

Variation of the rms, slope, n of lines and mean difference seen in Fig. 10 A) and varying the noise level. 2. Testing with real data DAOSPEC seems to works well with different sets of resolutions and even with high noise levels. In this section we report the results of DAOSPEC in a big sample composed of 62 stars. 000, s/n ~ 200 - 400), on October 2004. The lines used to do this test are standard Fe I and Fe II lines used to determine stellar parameters. A list of this lines can be found in Santos et al.

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