Messenger No. 20 (March 1980)

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1-4 (PDF)
P. A. Wehinger et al.
Quasars Resolved

ADS BibCode:
1980Msngr..20R...1W
Author(s)/Affiliation(s):
Wehinger, P. A.; Gehren, T.; Wyckoff, S.
AA(ESO) AB(ESO) AC(ESO)
Abstract:
While observers have obtained spectra of more than 1,400 quasars since they were discovered in 1963, fewer than one per cent have been studied by direct imaging techniques at significantly faint surface brightness levels and high angular resolution to detect anything more than a bright point-like source. La Silla's very dark sky, excellent seeing, plus the superb optics of the 3.6-m telescope have been combined with digital analysis of sky-limited photographs to produce two-dimensional intensity contour maps and image profiles of quasars. The contour maps reveal extended structure on ascale of 5-10 are sec for 80 per cent of a sampIe of 20 low redshift (z = 0.1-0.5) quasars. In a significant number of cases the data also show the presence of galaxies near the QSO's, some of which have measured redshifts nearly equal to the QSO redshifts. This programme is the joint effort of Drs. Peter Wehinger and Thomas Gehren of the Max-Planck Institute for Astronomy in Heidelberg and Professor Susan Wyckoff of Arizona State University in Tempe, Arizona.
1-1 (PDF)
L. Woltjer
Italy and Switzerland to Become Members of ESO

ADS BibCode:
1980Msngr..20Q...1W
Author(s)/Affiliation(s):
Woltjer, L.
AA(ESO)
Abstract:
On 26 March the ESO Council, meeting in Geneva in special session, unanimously accepted Italy and Switzerland as new Member States in the Organization. This membership could become effective early in 1981, if the required parliamentary ratification procedure in the two countries will have been successfully completed.
3-3 (PDF)
R. M. West
Change in 'Messenger' Editorship

ADS BibCode:
1980Msngr..20....3W
Author(s)/Affiliation(s):
West, R. M.
AA(ESO)
Abstract:
Please be informed that I have resigned in December 1979 as Editor of the ESO Messenger. The Di rectorGeneral has accepted my resignation and will presently appoint another person in this function.
4-5 (PDF)
ESO
Visiting Astronomers

ADS BibCode:
1980Msngr..20S...4.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
Observing time has now been allocated for period 25 (April1 to October 1,1980). As usual, the demand for telescope time was much greater than the time actually available.
4-4 (PDF)
ESO
List of Preprints Published at ESO Scientific Group

ADS BibCode:
1980Msngr..20Q...4.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
73. N. VOGT: The SU UMa Stars, an Important Sub-group of Dwarf Novae. Astronomy and Astrophysies. December 1979.
4-4 (PDF)
ESO
Dwarf Galaxies - the Need for Coordinated Space and Ground-Based Observations - ESO Workshop no.

ADS BibCode:
1980Msngr..20R...4.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
This workshop, which is the fi rst in aseries planned to encourage European cooperation and coordination in the use of the space telescope, will take place on May 12-13 1980 in Geneva. Participation by invitation.
5-5 (PDF)
ESO
Fifth European Regional Meeting - Liege - 1980JUL28-AUG1

ADS BibCode:
1980Msngr..20R...5.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
The Fifth European Regional Meeting, cosponsored by lAU and EPS, on "Variability in Stars and Galaxies" will take place in Liege from 28 July till1 August. Four generallectures have been planned (J. O. Stenflo: Solar Variability; C. Hazard: Variability in Galactic Nuclei and Quasars; J. van Paradijs: X-ray Bursters; I. Shklovsky: SS 433). In addition, about 25 invited papers will be given in the area of Sun, variable stars, active nuclei and quasars, variable galactic X-ray sources and related objects, interstellar medium and star formation, supernovae and remnants, early universe.
5-5 (PDF)
ESO
One of the Founders of ESO Receives Adion Medal for 1978 = Oort, Jan-H

ADS BibCode:
1980Msngr..20Q...5.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
The Association for International Development of the Nice Observatory (ADION) awards each year, si nce 1963, a medal honou ri ng a French or foreign scientist known for the importance of his contribution to the development of astronomy and astrophysics and to the establishment of international cooperation in this science. The medal for 1978 has been awarded to Professor Jan H. Oort who played a major part in the creation of the European Southern Observatory.
6-7 (PDF)
A. Terzian, K. H. Ju
A Photometric Study of the Bright Cloud B in Sagittarius - Part Three

ADS BibCode:
1980Msngr..20....6T
Author(s)/Affiliation(s):
Terzian, A.; Ju, K. H.
AA(Observatoire de Lyon) AB(Observatoire de Lyon)
Abstract:
While continuing the study of variable red stars and stars with proper motions and the U, S, V photometry of stars in the bright cloud S in Sagittarius or projected in this central region of the Galaxy (see Messenger No. 10, p. 1), we detected, in 1978, three diffuse objects and a planetary nebula (see Messenger No. 15, p. 14). These objects were discovered on R' plates (09~4 with filter RG630, x = 6500 A) taken by H. E. Schuster and his collaborators at the ESO Schmidt telescope on La Silla.
7-7 (PDF)
ESO
Book-Review - ESO 35-MM Slide Sets

ADS BibCode:
1980Msngr..20R...7.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
Two slide sets are at present available from ESO-Garching:
7-7 (PDF)
ESO
Tentative Time-table of Council Sessions and Committee Meetings

ADS BibCode:
1980Msngr..20Q...7.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
The following dates and locations have been reserved for meetings of the ESO Couneil and Committees:
8-11 (PDF)
M. H. Ulrich
Observing Elliptical Galaxies with IPCS

ADS BibCode:
1980Msngr..20....8U
Author(s)/Affiliation(s):
Ulrich, M. H.
AA(ESO Scientific Group, Geneva)
Abstract:
The Image Photon Counting System (IPCS) developed in the early 1970's at University College London by Dr. A. Boksenberg and collaborators (A. Boksenberg, 1972 in Auxiliary Instrumentation for Large Telescapes, proceedings of ESO/CERN Conference, p. 295; A. Boksenberg and D. E. Burgess, 1972 in Adv. in Electronics and Electron Physics, 33B p. 285) is a two-dimensional detector. It has been used on the ESO 3.6-m telescope at La Silla to observe spectrographically a variety of faint astronomical objects: extended objects, in particular regions of galaxies outside the nucleus, nebulosities associated with active nuclei, etc., and star-like objects such as quasars or halo stars.
9-9 (PDF)
ESO
Book-Review - Proceedings of the ESO Workshop on Two-Dimensional Photometry

ADS BibCode:
1980Msngr..20....9.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
The Proceedings of this workshop have now been edited and will be available in print at the end of April 1980.
11-11 (PDF)
ESO
ESO Headquarters Building Nearing Completion

ADS BibCode:
1980Msngr..20...11.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
In spite of the winter, construction work on the ESO Headquarters building has rapidly advanced during the past months. The outside is almost terminated and the work is now concentrating on the technical installations inside the building.
12-12 (PDF)
ESO
Algunos Resumenes

ADS BibCode:
1980Msngr..20...12.
Author(s)/Affiliation(s):
ESO
AA(ESO)
Abstract:
En una sesi6n espeeial eelebrada en Ginebra el dia 26 de marzo el Consejo de la ESO aeept6 por unanimidad a Italia y Suiza eomo nuevos estados miembros de la organizaei6n. Una vez que los proeedimientos necesarios para la ratifieaei6n por las Camaras de ambos pafses hayan sido eoneluldos eon exito, podrfan ellos ser asoeiados efeetivamente a prineipios dei ario 1981.