Compendium in Astronomy: A Volume Dedicated to Professor John Xanthakis on the Occasion of Completing Twenty-five Years of Scientific Activities as Fellow of the National Academy of Athens

452 Pages·11.749 MB·English

by  Alan H. Batten (auth.), Elias G. Mariolopoulos, Pericles S. Theocaris, L. N. Mavridis (eds.)

COMPENDIUM IN ASTRONOMY
PROFESSOR JOHN XANTHAKIS
FELLOW OF THE NATIONAL ACADEMY OF ATHENS
SECRETARY OF THE PROCEEDINGS OF THE ACADEMY
EMERITUS PROFESSOR OF ASTRONOMY
AT THE UNIVERSITY OF THESSALONIKI
COMPENDIUM
IN
ASTRONOMY
A Volume Dedicated to Professor John Xanthakis
on the Occasion of Completing Twenty-five Years of Scientific Activities
as Fellow of the National Academy of Athens
Edited by
ELIAS G. MARIOLOPOULOS
Fellow, National Academy of Athens
President, National Observatory ofA thens
PERICLES S. THEOCARIS
Vice·President, National Academy of Athens
Rector, National Technical University of Athens
and
L. N. MAVRIDIS
Professor, University of Thessaloniki
D. REIDEL PUBLISHING COMPANY
DORDRECHT : HOLLAND / BOSTON: U.S.A.
LONDON: ENGLAND
Clp
library of Congress Cataloging in Publication Data
Main entry under title:
Compendium in astronomy.
Includes indexes.
1. Astronomy-Addresses, essays, lectures.
2. Xanthakis, John N., 1904- -Addresses, essays, lectures. I. Xanthakis,
John N., 1904- II. Mariolopoulos, Elias G., 1900- III. Theocaris,
Pericles S., 1921- IV. Mavridis, L. N. V. Series.
QB51.C686 520 81-19949
ISBN-13: 978-94-009-7768-6 e-ISBN-13: 978-94-009-7766-2 AACR2
DOl: tO.1 007/978-94-009-7766-2
Published by D. Reidel Publishing Company,
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D. Reidel Publishing Company is a member of the Kluwer Group.
All Rights Reserved
Copyright © 1982 by D. Reidel Publishing Company, Dordrecht, Holland
Softcover reprint ofthe hardcover 1st edition 1982
No part of the material protected by this copyright notice may be reproduced or
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PREFACE
When we first approached some colleagues allover the world to
sound them about a volume dedicated to Professor John Xanthakis on the
occasion of completing twenty-five years of scientific activities as
fellow of the National Academy of Athens, any possible doubts as to the
feasibility of the project were quickly dispelled by their warm and
encouraging response. In a short time 50 authors from 15 countries,
coming from a wide range of Professor Xanthakis' immediate colleagues,
pupils and friends joined to produce the 36 contributions included in
this volume.
Some of those who where originally approached found themselves un
able to contribute, because of the time-limit necessarily imposed. Happi
ly, they were only few in number, and we should like to record our grat
itude to them for their good wishes for the success of the venture.
Their warm words were among the many sources of inspiring encouragement
extended to us.
This response can easily be understood, if one takes into account
the career, scientific achievements and personality of Professor Xantha
kis, which made him a widely known and highly estimated member of the
international scientific community. His research work, which opened new
perspectives in the fields of Solar Physics and Solar-Terrestrial Rela
tions, his pioneer work as the first Professor of Astronomy at the Uni
versity of Thessaloniki, his long and creative scientific activity as
Fellow, Secretary of the Proceedings, and President of the National Acad
emy of Athens, where he founded, as early as twenty years ago, the Re
search Center for Astronomy and Applied Mathematics, as well as his con
tinuous efforts in his capacity as President of the Greek National Com
mittees for Astronomy, for Mathematics and for Space Research, to ensure
the harmonious co-operation of the Greek scientists in the international
scientific programs, had already, long ago, created the proper climate
for this enthousiastic response to our request.
It is our pleasant duty to extend our warmest thanks to all those
who contributed to the preparation of the present volume. First of all
to the authors of the papers for their excellent co-operation. Then to
the publishers, the D. Reidel Publishing Company, for their unfailing
helpfulness and great care, which they devoted to the production and
publication of this volume, especially to Mrs. N.M. Pols-v.d. Heijden,
who always gave every possible consideration to our suggestions. Finally,
to Miss J. Karrinti, who assisted us in man" ways during the preparation
of the volume, and Hrs. E. Kolokotroni and Hiss M. Stamatelou, who typed
the camera-ready manuscript.
v
E. G. Mariolopoulos et al. (eds.), Compendium in Astronomy, v-vi.
Copyright © 1982 by D. Reidel Publishing Company.,
PREFACE
We should like to add a final personal footnote to our Preface.
Circumstances have qiven us the opportunity of long-continued contact
with Professor Xanthakis' inspiring personality. It is an experience,
which we cherish more deeply than we can readily express, and which we
consider one of the greatest gifts of our life.
August 1981 E.G. MARIOLOPOULOS
P.S. THEOCARIS
L.N. MAVRIDIS
PROFESSOR JOHN XANTHAKIS
BRIEF BIOGRAPHICAL NOTE AND LIST OF PUBLICATIONS
BRIEF BIOGRAPHICAL NOTE
Born in Gythion, Greece, November 21, 1904.
Graduate in Mathematics, University of Athens (1925); PhD in Mathematics,
University of Athens (1930).
Astronomer and Chief Assistant, University of Athens (1929-31).
Research Associate, Observatoire de Strasbourg (1931-34).
Professor of Mathematics, Military Academy of Athens (1938-39).
Professor of Astronomy, University of Thessaloniki (1939-55).
Fellow, National Academy of Athens (1955-now); President National Acad
emy of Athens (1964); Secretary of the Proceedings, National Academy of
Athens (1966-now).
Founder and Supervisor of the Research Center for Astronomy and Applied
Mathematics, National Academy of Athens (1959-now).
President, Greek National Committee for Astronomy (1957-now).
President, Greek National Committee for Mathematics (1957-80).
President, Greek National Committee on Space Research (1964-now).
President, Administrative Council, Greek Oceanographic Institute (1960-
671.
President, Greek Mathematical Society (1965-73).
Served twice as Minister of Agriculture (1963,1964).
Published 6 text-books in Greek language, 2 books and 78 original papers.
His research work refers mainly to the Mathematical Analysis, Positional
Astronomy, Solar Physics and Solar-Terrestrial Relations.
BOOKS
1. Solar Physics, Proceedings of a NATO Advanced Study Institute Confer
ence, Athens, September 1965, (ed. by J. Xanthakis), Interscience
Publishers a Division of John Wiley and Sons, London, New York,
Sydney, 1967.
2. Solar Activity and Related Interplanetary and Terrestrial Phenomena,
Proceedings of the First European Astronomical Meeting, Athens,
September 4-9, 1972, Vol. I, (ed. by J. Xanthakis), Springer-Verlag,
Berlin, Heidelberg, New York, 1973.
TEXT-BOOKS (in Greek)
1. General Mathematics, University of Thessaloniki Press, Thessaloniki,
1947.
vii
E. G. Mariolopoulos et al. (eds.), Compendium in Astronomy, vii~xii.
Copyright © 1982 by D. Reidel Publishing Company.
viii BIOGRAPHICAL NOTE AND LIST OF PUBLICATIONS
2. Probability Calculus, University of Thessaloniki Press, Thessaloniki,
1951.
3. Astronomy, Vol. I: Spherical Astronomy, University of Thessaloniki
Press, Thessaloniki, 1955.
4. Astronomy, Vol. II: Celestial Mechanics, University of Thessaloniki
Press, Thessaloniki, 1952.
5. Astronomy, Vol. IlIa: Earth, Moon, Sun. University of Thessaloniki
Press, Thessaloniki, 1954.
6. Astronomy, Vol. IV: Stellar Astronomy, University of Thessaloniki
Press, Thessaloniki, 1951.
ORIGINAL PAPERS
1 .. Sur la theorie des anomalies des equations differentiel1es du 1er
ordre, Proc. Acad. Athens, 5, 53, 1930.
2 .. Contribution a la theorie de; singu1arites des equations differentiel
les du premier ordre.PhD Dissertation, University of Athens, 1930.
3. Sur les singularites des equations differentielles du premier ordre.
Ann. Fac. Sci. Univ. Toulouse, 1932.
4. Sur la variation des longitudes geographiques, Proc. Acad. Athens I,
255, 1932.
5. Sur Ie terme Z de M. Kimura, Proc. Acad. Athens, ~, 32, 1933.
6. Sur les deplacements apparents de l' etoile po1aire, Compt. Rend.
Acad. Sci. Paris 196, 1649, 1933.
7. Sur les fluctuatio~du meridien de Greenwich, Bull. Astron. Obs.
Paris 8, Fasc. III, 123, 1934.
8. Sur quelques erreurs systematiques des ascensions droites des etoiles
circumpolaires, Proc. Acad. Athens 9, 136, 1934.
9. Sur la variation diurne des aZimuts,-Proc. Acad. Athens 11, 46~ 1936.
10. Observations de l' eclipse totale de soleil du 19 Juin 1936. Mem.
Natl. Obs. Athens, Ser. I. Astron., No.1, 20, 1937.
11.. Sur 1es causes de la variation des azimuts, Proc. Acad. Athens 12,
478, 1937.
12. Sur la variation d'azimut de la ligne des mires meridiennes a l'Obser
vatoire de Strasbourg, Compt. Rend. Acad. Sci. Paris 206, 171, 1938.
13. Sur une relation remarquable entre les temperatures moyennes mensuel
a
les de l'air Alexandrie, Athenes, Rome, Paris, Proc. Acad. Athens
13,424,1938.
14. A New Method for the Determination of the Logistic Curve. Application
to the Population of Greece, Proc. Acad. Athens 14,412, 1939.
15. Sur les temperatures moyennes mensuelles de l'air, Volume dedicated
to the thirty-fifth anniversary from the appointment of Professor
N. Criticos (1907-1942), p. 150, Athens, 1943.
16. Relation between the Mean Monthly Air Temperatures in the Temperate
Zones, University of Thessaloniki Press, Thessaloniki, 1948.
17. Relation Between the Mean Monthly Air Temperatures in the Temperate
Zones, BUll. Am. Meteorol. Soc. 29, 550, 1948.
18. Statistical Study of the Results of the Entrance Examinations to the
Schools of the University of Thessaloniki during the Academic Years
1946-47, 1947-48, 1948-49, BUll. Univ. Thessaloniki, 1949.
BIOGRAPHICAL NOTE AND LIST OF PUBLICATIONS ix
19. Sur une relation entre les valeurs moyennes mensuelles de la radia
tion solaire observee en 12 stations de l' hemisphere nord, Proc.
Acad. Athens 26, 208, 1951.
20. Sur la variation d' azimut du cercle meridien de l' Observatoire
National d' Athenes, Bull. Hellenic Army Geographical Service 12,
1, 1952.
21. A Correlation Between the Coefficient of Continentality and the Excen
tricity of the Ellipse of the Mean Monthly Air Temperatures in the
Temperate Zones, Proc. Acad. Athens 27, 101, 1952.
22. Justification theorique d' une relation empirique entre les valeurs
moyennes mensuelles de la temperature de I' air et de la radiation
solaire, Proc. Acad. Athens 27, 168~ 1952.
23. New Relations between the Mean Monthly Air Temperatures, University
of Thessaloniki Press, Thessaloniki, 1953.
24. Sur la distribution symetrique des temperatures moyennes mensuelles
de I' air, Proc. Acad. Athens 28, 47, 1953.
25. Les temperatures saisonnieres de l'air pendant les periodes de I'
action solaire, Proc. Acad. Athens 28, 91, 1953.
26. Le probleme des deplacements apparents de I' etoile Polaire, Proc.
Acad. Athens 28, 274, 1953.
27. Expression de la radiation solaire en fonction de la longitude du
Soleil en 11 stations de I' hemisphere nord, Proc. Acad. Athens 28,
299, 1953.
28. Study of the Mean Monthly Air Temperatures during the Successive
Sunspot Cycles, Publ. Astron. Dept. Univ. Thessaloniki No.1, 1955.
29. Sur les variations des temperatures saisonnieres de I' air a six
stations de I' Europe Centrale et du Nord-Ouest pendant les 150
dernieres annees, Proc. Acad. Athens 30, 115, 1955.
30. Sur une correlation importante entre I' action solaire et I' atmo
sphere inferieure, Proc. Acad. Athens 30, 125, 1955.
31. Study of the Mean Monthly Air Temperatures during the Successive
Sunspot Cycles, Archiv Meteorol. Geophys. Bioklimatol. Sere A
2.., 54, 1956.
32. Sur une classification des cycles des taches solaires et des facules,
Astron. Zh. 34, 391, 1957.
33. Current Solar Studies. Inaugural Presentation in the Academy of
Athens, Proc. Acad. Athens 32, 202, 1957.
34. Les aires des taches solaires et des facules en fonction du temps
d' ascension, Geofis. Pura e Appl. Milano ~, 1, 1958.
35. The Areas of Sunspots in the Two Sun Hemispheres, Trans. Acad. Athens
24, 1, 1958.
36. L' expression de I' acti vite solaire en fonction du temps d' ascension
Ann. Astrophys. 22, 855, 1959.
37. Les aires des taches solaires vers Ie Nord et vers Ie Sud de I'
equateur du Soleil en fonctions du temps d' ascension. Compt. Rend.
Acad. Sci. Paris 249, 1315, 1959.
38. L' asymetrie N-S dans I' activite solaire. Compt. Rend. Acad. Sci.
Paris 249, 1458, 1959.
39. The Sunspot Areas and the Relative Sunspot Numbers.Geofis. Pura e
Appl. Milano 46, 11, 1960.
x BIOGRAPHICAL NOTE AND LIST OF PUBLICATIONS
40. Sur les maximums singulierement eleves de I' activite solaire. Compt.
Rend. Acad. Sci. Paris 253, 1311, 1961.
41. The Sunspot Areas and the Wolf Numbers. A Study of the Analytical
Relations Given by J. Xanthakis and J. Mergentaler. Mem. Soc. Astron.
Ital. XXXIII, 291, 1962. (in collaboration with G. Banos).
42. Les relations analytiques des nombres des groupes de taches solaires
et de nombres relatifs. Ann. Astrophys. 25, 342, 1962.
43. Two Interplanetary Phenomena of 468 B.C. ,~rans. Acad. Athens 24,
No.4, pp. 24-45, 50-53, 1963. (Marinatos, S., comments by J.-
Xanthakis) .
44. A Study of the Sunspot Magnetic Field Strengths, Mem. Soc. Astron.
Ital. XXXVI, 25, 1965.
The Departures of the Maxima of Solar Activity from the Parabolic
Law. Publicazioni del Comitato Nazionale per Ie Manifestazioni
Celebrative del IV Centenario della Nascita di Galileo Galilei,
Tomo 2: Atti del Convegno sulle Macchie Solari, pp. 63-67, 1966.
46. Probable Value of the Time of Rise for the Sunspot Cycle No. 20.
Nature 210, 1242, 1966.
The Relative Sunspot Numbers and the Time of Rise. Bull. Astron.Inst.
Czech. 17, 215, 1966.
48. The Probable Mean Values of the Different Indices of Solar Activity
During the Sunspot Cycle No. 20 (1964-1975). Proc. Acad. Athens 41,
384, 1967.
The Different Indices of Solar Activity and the Time of Rise, in
Solar Physics (ed. by J. Xanthakis), Interscience Publishers, London,
N. York, Sydney, p. 157, 1967.
50. Probable Values of the Time of Rise for the Forthcoming Sunspot Cycles
Nature, 215, 1046, 1967.
51. On a Relation Between the Indices of Solar Activity in the Photosphere
and the Corona. Solar Phys. 10, 168, 1969.
a
52. Relations entre l' indice des aires, Ie nombre des eruptions protons
(proton flares), la variation du radio-diametre de la couronne
solaire et l' intensite des rayons cosmiques. Compo Rend. Acad. Sci.
Paris, 271, 1009, 1970.
53. On a Relation Between the Indices of Solar Activity in the Photosphere
and the Corona, Proc. Acad. Athens 44, 153, 1970.
54. Relations Between the Areas Index and Different Phenomena in the
Chromosphere, the Corona and the Interplanetary Space, in Physics
of the Solar Corona (ed. by G. Macris), D. Reidel, Dordrecht-Holland,
p. 179, 1971.
55. Solar Activity and Precipitation, in Solar Activity and Related Inter
planetary and Terrestrial Phenomena (ed. by J. Xanthakis), Springer
Verlag, Berlin p. 19, 1973.
56. Solar Activity and Precipitation Within the Zones of Latitude 00_40oN.
Proc. Acad. Athens 49, 187, 1974 (in collaboration with C. Poulakos
and B. Tritakis). --
57. Remarks on High Latitude Air Temperature Ranges and Solar Activity,
Proc. Acad. Athens LQ., 118, 1975 (in collaboration with Ch. S. Zerefos).
58. Probable Periodical Variations in the Frequency of the Etesian Winds,
in the Special Volume in Memoriam "Demetrios Eginitis", (ed. by C.
Carapiperis, D. Kotsakis, and C. Macris), Athens p. 305, 1975.