Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-30T02:41:27.335Z Has data issue: false hasContentIssue false
  • English
  • Français

VLBI Observations of Radio Stars

Published online by Cambridge University Press:  03 August 2017

Jean-François Lestrade
Jean-François Lestrade*
Affiliation:
Bureau des Longitudes, 77 Avenue Denfert-Rochereau, F-75014, Paris, 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.

In recent years, observations of stars across the whole electromagnetic spectrum have yielded a wealth of information on their atmospheres and borne out new insights on their internal structures. Indirect evidences for chromospheres, coronae and winds were discovered in stars other than the Sun. For instance, ultra-violet and optical emission lines from collisionally excited atoms are evidences for chromospheric activity with temperatures between 104 and 2 × 105 K. Soft X-ray emission with thermal spectrum is evidence for hot coronae with temperatures between 106 and 3 × 107 K. The spindown of stars with age is best interprated by loss of mass and of angular momentum via magneticly coupled stellar winds originating in hot stellar coronae.

Type
Galactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 265 - 274
Copyright
Copyright © Reidel 1988 

References

Abbott, D. C., 1985, in “Radio Stars”, Workshop held in Boulder August 1984, edited by Hjellming, R. M. and Gibson, D. M., 61.Google Scholar
Clark, B.G., Kellermann, K.I., Shaffer, D.B., 1975, Ap. J., 198, L123.Google Scholar
Clark, T.A. et al, 1976, Ap. J. (Letters), 206, L107.Google Scholar
Dulk, G.A., 1985, An. Rev. Astron. and Astroph, vol 23, 169.Google Scholar
Hall, D.S., 1975, in “Multiple Periodic Variable Stars”, IAU Colloquium No 29, Budapest.Google Scholar
Hjellming, R.M., Johnston, K.J., 1985, in “Radio Stars”, Workshop held in Boulder August 1984, edited by Hjellming, R. M. and Gibson, D. M., 61.Google Scholar
Klein, K.L., Chiuderi-Drago, F., 1987, Astron. Astrophys. (in press) Google Scholar
Kwok, S., 1985, in “Radio Stars”, Workshop held in Boulder August 1984, edited by Hjellming, R. M. and Gibson, D. M., 79.Google Scholar
Lestrade, J.-F., Mutel, R.L., Preston, R.A., Scheid, J.A., Phillips, R.B., 1984a, Ap. J., 279, 184.Google Scholar
Lestrade, J.-F., Mutel, R.L., Phillips, R.B., Niell, A.E., Preston, R.A., 1984b, Ap. J. (Letters), 282, L23.Google Scholar
Lestrade, J.-F., Mutel, R.L., Preston, R.A., Phillips, R.B., 1987, submitted Ap.J. Google Scholar
Little-Marenin, I.R., Simon, T., Ayres, T.R., Cohen, N.L., Feldman, P.A., Linsky, J.L., Little, S.J., Lyons, R., 1986, Ap. J., 303, 780.CrossRefGoogle Scholar
Ma, C., et al, 1986, A. J., 92, 1020.Google Scholar
Melrose, D.B., Dulk, G.A., 1982, Ap. J., 259, 844.Google Scholar
Molnar, L.A., Reid, M.J., Grindlay, J.E., 1984, Nature, 310, 662.Google Scholar
Molnar, L.A., 1986, in “Physics of Accretation onto Compacts Objects”, held in Tenerife (Spain) April 1986, Watson, M. Mason, K. and White, N. (eds)Google Scholar
Mutel, R.L., Doiron, D., Lestrade, J.-F., Phillips, R.B., 1984, Ap. J., 278, 220.Google Scholar
Mutel, R.L., Lestrade, J.-F., Preston, R.A., Phillips, R.B., 1985, Ap. J., 289, 262.Google Scholar
Mutel, R.L., Lestrade, J.-F., 1985, A. J., 90, 493.Google Scholar
Mutel, R.L., Morris, D.H., Doiron, D.J., Lestrade, J.-F., 1987, A. J., 93, 1220.Google Scholar
Niell, A.E., Lockhart, T.G., Preston, R.A., 1981, Ap. J., 250, 248.Google Scholar
Owens, F.N., Spangler, S.R., 1977, Ap. J., 217, L41.Google Scholar
Pallavicini, R., 1986, Highlights of Astronomy IAU 1986, edited by Swings, J. P., 447.Google Scholar
Preston, R.A. et al, Ap. J., 268, L23.Google Scholar
Rodono, M., 1986, Highlights of Astronomy IAU 1986, edited by Swings, J. P., 429.Google Scholar
Rogers, A.E.E. et al, 1983, Science, 219, 51.Google Scholar
Uchida, Y., Sakurai, T., 1983, in “Activity in Red Dwarf Stars, IAU Colloq. 71, edited by Rodonò, M., Reidel, 629.Google Scholar
Schilizzi, R. T., Miley, G.K., Romney, J. D., Spencer, R.E., 1981, Nature, 290, 318.Google Scholar
Vestrand, W. T., 1983, Ap. J., 271, 304.Google Scholar
Vogt, S.S., Penrod, G.D., 1983, P.A.S.P., 95, 565.Google Scholar
Walker, R.C., et al, 1981, Ap. J., 243, 589.Google Scholar
Walter, F.M., Gibson, D.M., Basri, G.S., 1983, Ap. J., 267, 665 Google Scholar
White, N.E. et al, 1985, in “Cool Stars, Stellar Systems and the Sun”, edited by Gibson, D. and Zeilik, M. Google Scholar