Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-25T16:53:17.124Z Has data issue: false hasContentIssue false
  • English
  • Français

Hipparcos and Primary Distance Scale Indicators

Published online by Cambridge University Press:  14 August 2015

C. Turon
C. Turon*
Affiliation:
DASGAL, URA CNRS 335, Observatoire de Paris, 92195, Meudon Cedex, France.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The Hipparcos data are providing a dramatic increase, qualitatively and quantitatively, of the basic available distance information. For example, the numbers of stars for which a relative accuracy better than 10 % is available from Hipparcos data and from ground-based data are respectively 22 396and about 1000. Moreover, the range of spectral types and luminosity classes for which precise parallaxes are available is considerably enlarged, including many stars in open clusters and a small number of Cepheids and RR Lyrae. The bottom of the main sequence is populated down to absolute Hpmagnitude 14, including a number of subdwarf stars essential to derive globular clusters distances and ages (Pont et al, 1997a).

Finally, the Hipparcos data show how difficult are the calibration of photometric distances and the transformation of relative trigonometric parallaxes to absolute parallaxes. This is illustrated by the comparison of distances given in the last edition of the Catalogue of Nearby Stars (CNS3, Gliese & Jahreiß 1991), which is the best available compilation of stars said to be closer than 25 pc from ground-based data. About a third of them are found by Hipparcos to be (much) further than this limit (Perryman et ai, 1995). A second example is given by the study of (Binney et al, 1997).

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 11 , Issue 1: Highlights of Astronomy. As presented at the XXIIIrd General Assembly of the IAU (Part A), 1997 , 1998 , pp. 576 - 577
Copyright
Copyright © Kluwer 1998

References

Binney, J., Dehnen, W., Houk, N., Murray, C.A., Penston, M.J., (1997), Hipparcos Venice ’97, ESA SP-402, p. 473 Google Scholar
Cayrel, R., Lebreton, Y., Perrin, M.N., Turon, C. (1997), Hipparcos Venice ’97, ESA SP-402, p. 219 Google Scholar
Chaboyer, B., Demarque, P., Kernan, P.J., Krauss, L.M. (1997), ApJ, astro-p/9706128Google Scholar
Feast, M.W., Catchpole, R.M., (1997), MNRAS, 286, L1 Google Scholar
Feast, M.W., Whitelock, P.A., (1997), Hipparcos Venice ’97, ESA SP-402, p. 625 Google Scholar
Fernley, J., Barnes, T.G., Skillen, I., et al., (1997), Hipparcos Venice ’97, ESA SP-402, p. 635 Google Scholar
Gliese, W., Jahreiß, H. (1991), Astron. Rechen-Institut, HeidelbergGoogle Scholar
Gratton, R.G., Fusi Pecci, F., Carretta, E., Clementini, G., et al. (1997), Hipparcos Venice ’97, ESA SP-402, p. 651 Google Scholar
van Leeuwen, F., Hansen Ruiz, C.S. (1997), Hipparcos Venice ’97, ESA SP-402, p. 689 Google Scholar
van Leeuwen, F., Feast, M.W., Whitelock, P.A., Yudin, B, (1997), MNRAS, 287, 955 Google Scholar
Lindegren, L., Perryman, M.A.C. (1997), Hipparcos Venice ’97, ESA SP-402, p. 799 Google Scholar
Luri, X., Gómez, A.E., Torra, J., Figueras, F., Mennessier, M.O. (1997), Astron. Astrophys. Letters, submittedGoogle Scholar
Madore, B.F., Freedman, W.L. (1997), ApJ Letters, in pressGoogle Scholar
Mermilliod, J.C., Turon, C., Robichon, N. et al. (1997), Hipparcos Venice ’97, ESA SP-402, p. 643 Google Scholar
Paturel, G., Lanoix, P., Garnier, R., et al., (1997), Hipparcos Venice ’97, ESA SP-402, p. 629 Google Scholar
Perryman, M.A.C., Brown, A.G.A., Lebreton, Y. et al. (1997a), Astron. Astrophys., in pressGoogle Scholar
Perryman, M.A.C., Lindegren, L., Turou, C. (1997b), Hipparcos Venice ’97, ESA SP-402, p. 743 Google Scholar
Perryman, M.A.C., Lindegren, L., Kovalevsky, J., Turon, C., Høg, E., et al. (1995), Astron. Astrophys., 304, 69 Google Scholar
Pont, F., Mayor, M., Turon, C. (1997a), IAU Symp. 189, Bedding, T.R. et al. (eds.), p. 433 Google Scholar
Pont, F., Charbonnel, C., Lebreton, Y. et al. (1997b), Hipparcos Venice ’97, ESA SP-402, p. 699 Google Scholar
Reid, N. (1997), Astron. J., 114, 161 Google Scholar
Robichon, N., Arenou, F., Turon, C., et al. (1997), Highlights in Astronomy, 11, in pressGoogle Scholar
Szabados, L. (1997), Hipparcos Venice ’97, ESA SP-402, p. 661 Google Scholar
Tsujimoto, T., Miyamoto, M., Yoshii, Y., (1997), Hipparcos Venice ’97, ESA SP-402, p. 639 Google Scholar
Whitelock, P.A., van Leeuwen, F., Feast, M.W. (1997), Hipparcos Venice ’97, ESA SP-402, p. 213 Google Scholar