Messenger No. 64 (June 1991)

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1-3 (PDF)
B. A. Peterson et al.
The NTT Provides the Deepest Look Into Space

ADS BibCode:
1991Msngr..64....1P
Author(s)/Affiliation(s):
Peterson, B. A.; D'Odorico, S.; Tarenghi, M.; Wampler, E. J.
AA(Mount Stromlo Observatory, Australian National University, Canberra) AB(ESO) AC(ESO) AD(ESO)
3-5 (PDF)
R. Fosbury
HST - The first year

ADS BibCode:
1991Msngr..64....3F
Author(s)/Affiliation(s):
Fosbury, R.
AA(ST-ECF)
Abstract:
The performance of the HST in its first year is reviewed. Improvements made in instrument performance are emphasized.
5-8 (PDF)
L. Woltjer
The "Discovery" of Paranal

ADS BibCode:
1991Msngr..64....5W
Author(s)/Affiliation(s):
Woltjer, L.
AA(Observatoire de Haute-Provence, France)
References:
C.G. Abbot, Smithsonian Miscellaneous Collections 101, No. 12, 1940.
C.P. Butler, Ibidem 95, No. 1, 1936.
J.W. Warner, Pub. Astron. Soc. Pacific 89, 724, 1977.
A. Ardeberg, ESO Conf. Proc. 17, 225, 1983.
J. Stock, ESO Bulletin 5, 35, 1968.
8-9 (PDF)
ESO
ESO Awards VLT Contracts to Dutch and Danish Firms

ADS BibCode:
1991Msngr..64....8.
Author(s)/Affiliation(s):
ESO
AA(ESO)
9-20 (PDF)
A. Blaauw
ESO's Early History, 1953-1975. XI. Policy, Payments and a Bit of Politics

ADS BibCode:
1991Msngr..64....9B
Author(s)/Affiliation(s):
Blaauw, A.
AA(Kapteyn Laboratory, Groningen, the Netherlands)
References:
FHA Doc. Cou-62, Minutes 14th Cou Meeting, p.16.
See Ref. [I], p.10.
FHA Doc. Cou-96, Minutes 17th Cou Meeting, p.31.
See, for instance, the minutes of Cou and FC over the years 1971 -1973.
This proposal served for discussion in closed session at the 2nd meeting of the SPC and is not in the FHA. Its contents is reported in the minutes of this meeting, Doc. SPC-2 in FHA.
See, for instance, the compilation "Publications based on observational work at the ESO Observatory La Silla", of Nov. 1974, Doc. OPC-20 in FHA-Sc.Act.
Minutes of this meeting with attached report of Chairman SPC to C. of Cou., Doc. Cou-12lrev. in FHA.
See Doc. Cou-126 of Oct. 20, 1972 in FHA.
FHA DOC. Cou-175, Minutes 23rd Cou. meeting.
Proceedings of the ESO/SRC/CERN Conference on Research Programmes for the New Large Telescopes, Ed., A. Reiz, 1974.
FHA Doc. Cou-179, Minutes 12th meeting C. of Cou., p.2
FHA Doc. FC-246 and Cou-115.
FHA Doc. Cou-119, Minutes 19th Cou. meeting, p.11.
FHA Docs Cou-131 and Cou-135, Summary of Conclusions and Minutes 20th Cou. meeting.
FHA Doc. Cou-142 and discussion by president SPC in C. of Cou. in May 1973, see Doc. Cou-147.
FHA Doc. Cou-150, p.8.
FHA Doc. Cou-162.
FHA Doc. Cou-175.
EHA-1.6.8.
Monatsberichte Deutsche Bundesbank, Statistische Beihefte, Mai 1989, No. 2.
Statistisches Bundesamt, Fachserie 17, Reihe 7, Preise und Preisindizes . . . (November 1990).
Minutes 2nd meeting Provisional Finance Comm. in FHA.
Docs FC-44,45 in FHA.
EHA-I.A.1.5. and 1.8.3.
EHA-I.A.2.17. and 1.8.7.
Minutes of the 9th
20-20 (PDF)
ESO
Visiting Professor in Astronomy - 1991/92

ADS BibCode:
1991Msngr..64...20.
Author(s)/Affiliation(s):
ESO
AA(ESO)
21-25 (PDF)
J. E. Arlot et al.
Observations of the mutual phenomena of Jupiter - The volcanic hot spots on Io

ADS BibCode:
1991Msngr..64...21A
Author(s)/Affiliation(s):
Arlot, J. E.; Colas, F.; Descamps, P.; Thuillot, W.; Vu, D. T.; Bouchet, P.; Hainaut, O.; Lindgren, H.; Matamoros, E.; Smette, A.
AA(Bureau des Longitudes, Paris, France), AB(Bureau des Longitudes, Paris, France), AC(Bureau des Longitudes, Paris, France), AD(Bureau des Longitudes, Paris, France), AE(Bureau des Longitudes, Paris, France), AF(ESO, La Silla, Chile), AG(ESO, La Silla, Chile), AH(ESO, La Silla, Chile), AI(ESO, La Silla, Chile), AJ(ESO, La Silla, Chile)
Abstract:
Observations of the hot spots of Io are reviewed. Findings made by infrared observations, studies of eclipses, photometry, and polarimetry are summarized. Information that can be gleaned by occultations of Io by Europa in 1991 is discussed.
References:
Arlot, J.E., and Rocher, P., 1989: Astron. and Astroph. Suppl. Ser. 76, 495.
Fink, U., Larson, H.P., and Gautier Ill, T.N., 1976: lcarus 27, 439.
Goguen, J.D., and Sinton, W.M., 1985: Science, 230, 65.
Goguen, J.D., Sinton, W.M., Matson, D.L., Howell, R.R., Dyck, H.M., Johnson, T.V., Brown, R.H., Veeder, G.J., Lane, A.L., Nelson, R.M., and McLaren, R.A., 1988: lcarus 76, 465.
Gold, T., 1979: Science, 206, 1071.
Howell, R.R., and McGinn, M.T., 1985: Science, 230, 63.
Johnson, T.V., Morrison, D., Matson, D.L., Veeder, G.J., Brown, R.H., and Nelson, R.M., 1984: Science, 226, 134. McEwen, A.S., Soderblom, L.A., Matson, D.L., Johnson, T.V., and Lunine, J.I., 1986: Geophys. Res. Letters, 13-3, 201.
Moroz, V.I., 1961: Astron. Zh., 38, 1080 (trans. in Soviet Astron-AJ 5, 825.
Morrison, D., 1 977: in Planetary Satellites, J.A. Burns ed., University of Arizona Press, Tucson, p. 269.
Morrison, D., and Telesco, C.M., 1980: lcarus 44, 226.
Ness, N., Acuna, M., Lepping, R., Burlaga, L., Behannon, K., and Neubauer, F., 1979: Science, 204, 982.
Peale, S.J., Cassen, P., and Reynolds, R.T., 1979: Science, 203, 892.
Sinton, W.M., 1973: lcarus 20, 284.
Sinton, W.M., 1980: Astrophys. J. 235, L49.
Sinton, W.M., Tokunaga, A.T., Becklin, E.E., Gatley, I., Lee, T.J., and Lonsdale, C.J., 1980: Science, 210, 101 5.
Sinton, W.M., 1981: Journal of Geophys. Res., 86-B4, 3122.
Sinton, W.M., Lindwall, D., Cheigh, F., and Titternore, W.C., 1983: lcarus 54, 133.
Sinton, W.M., and Kaminski, C., 1988: lcarus 75, 207.
Witteborn, F.C., Bregmann, J.D., and Pollack, J.B., 1979: Science, 203, 643.
25-26 (PDF)
S. Binneweies
Splitting the Zodiacal Light

ADS BibCode:
1991Msngr..64...25B
Author(s)/Affiliation(s):
Binneweies, S.
AA(Astronomische Arbeitsgemeinschaft, Bochum, Germany)
References:
Cassini, G.D.: Decouverte de la lumiere celeste qui paroist dans le Zodiaque. Mem. Ac. ad. Roy. Sci. Tom Vlll (1666 - 1699). Paris: Comp. Libraires 1730, p. 119-209.
Winkler, C., Schmidt-Kaler, T., Schlosser, W.: 1985, Astron. Astrophys. 143, 194-200.
Sykes, M.V.: 1 988, Astrophysical Journal (Letters), 334, L 55.
26-29 (PDF)
H. Drechsel et al.
Fundamental stellar quantities of early-type stars

ADS BibCode:
1991Msngr..64...26D
Author(s)/Affiliation(s):
Drechsel, H.; Lorenz, R.; Mayer, P.
AA(Dr. Remeis Observatory, Bamberg, Germany), AB(Dr. Remeis Observatory, Bamberg, Germany), AC(Charles Univ., Prague, Czech Republic)
Abstract:
A program developed to analyze complex stellar systems made up of early-type OB binaries is briefly discussed. The program permits fundamental stellar quantities and orbital elements to be derived as precisely as possible. Photometric solutions and absolute dimensions of four recently analyzed OB-type binaries are presented as examples.
References:
Drechsel, H., Lorenz, R., Mayer, P.: 1989, Astron. Astrophys. 221, 49.
Drechsel, H., Gayler, S., Lorenz, R., Mayer, P.: 1991, AG Abstract Ser. 6, 74.
Hilditch, R.W., Bell, S.A.: 1987, Monthly Not. Roy. Astr. Soc. 229, 529.
Kallrath, J., Linnell, A.P.: 1987, Astrophys. J. 313, 346.
Mayer, P., Drechsel, H.: 1987, Astron. Astrophys. 183, 61.
29-32 (PDF)
J.-M. Mariotti, C. Perrier
Hunting the brown dwarf

ADS BibCode:
1991Msngr..64...29M
Author(s)/Affiliation(s):
Mariotti, J.-M.; Perrier, C.
AA(Paris, Observatoire, France), AB(Lyon, Observatoire, France)
Abstract:
Recent attempts to detect brown dwarfs are discussed. A program of observation of the closest Southern Hemisphere stars with the infrared speckle system at the La Silla 3.6 m telescope is emphasized. Ongoing development of infrared observational techniques in order to detect the dim light of a brown dwarf near a luminous star is examined.
References:
Duquennoy, A., Mayor, M.: 1988, Astron. Astrophys. 200, 135.
Leinert, C., Haas, M., Allard, F., Wehrse, R., McCarthy Jr., D.W., Jahreiss, H., Perrier, C.: 1990, Astron. Astrophys. 236, 399.
Mariotti, J.-M., Perrier, C., Duquennoy, A,, Duhoux, P.: 1990, Astron. Astrophys. 230, 77.
McCarthy Jr., D.W., Probst, R.G., Low, F.J.: 1985, Ap. J. (Letters) 290, L9.
Perrier, C., Mariotti, J.-M.: 1987, Ap. J. (Letters) 312, L27.
32-34 (PDF)
A. Bianchini et al.
Low-resolution spectroscopy of southern old novae

ADS BibCode:
1991Msngr..64...32B
Author(s)/Affiliation(s):
Bianchini, A.; della Valle, M.; Orio, M.; Ogelman, H.; Bianchi, L.
AA(Padova, Univ., Padua, Italy), AB(ESO, La Silla, Chile), AC(Osservatorio Astronomico, Turin, Italy), AD(Wisconsin Univ., Madison), AE(Osservatorio Astronomico, Turin, Italy)
Abstract:
First results are reported of a spectroscopic survey to study the continuum energy distribution of very low resolution of southern old novae and the intensities of low and high excitation lines at 3000-9000 A of the largest possible number of such objects at different evolution stages. A flare of the very slow nova CN Vel is reported.
References:
Bianchini, A., 1990, Astron. J., 99, 6.
Diirbeck, H.W., 1987, Space Sci. Rev., 45, I. Livio, M., Shankar, A,, Burkert, A., and Truran, J.W., 1990, Astrophys. J., 356, 250-254.
Mc Clintock, J.E., Remillard, R.A., 1986, Astrophys. J., 308, 1 1 0.
Ogelman, H.B., Krautter, J., and Beuermann, K., Astron. Astrophys., 177, 11 0.
Shara, M.M., Livio, M., Moffat, A.F.J., Orio, M., 1986, Astrophys. J., 31 1, 163.
Starrfield, S., 1989, in The Physics of Classical Novae, A. Cassatella and R. Viotti eds., in press.
Vogt, N., 1986, in Classical Novae, M.F. Bode and A. Evans eds., Chichester: Wiley and Sons.
Williams, G., 1983, Astrophys. J. Suppl. Ser., 53, 523.
34-34 (PDF)
ESO
New Items from ESO Information Service

ADS BibCode:
1991Msngr..64...34.
Author(s)/Affiliation(s):
ESO
AA(ESO)
35-38 (PDF)
P. Dubath et al.
Two cannonballs shot out from the core of the globular cluster 47 Tucanae.

ADS BibCode:
1991Msngr..64...35D
Author(s)/Affiliation(s):
Dubath, P.; Meylan, G.; Mayor, M.
AA(Geneva Observatory, Geneva, Switzerland) AB(Space Telescope Science Institute, Baltimore, USA, and Astrophysics Division, Space Science Department, European Space Agency) AC(Geneva Observatory, Geneva, Switzerland)
38-38 (PDF)
ESO
Staff Movements

ADS BibCode:
1991Msngr..64...38.
Author(s)/Affiliation(s):
ESO
AA(ESO)
39-41 (PDF)
E. Cappellaro et al.
New distant planetary nebulae

ADS BibCode:
1991Msngr..64...39C
Author(s)/Affiliation(s):
Cappellaro, E.; Sabbadin, F.; Salvadori, L.; Turatto, M.
AA(Osservatorio Astronomico, Padua, Italy), AB(Osservatorio Astronomico, Padua, Italy), AC(Padova, Univ., Padua, Italy), AD(Osservatorio Astronomico, Padua, Italy)
Abstract:
A method to detect new PNe beyond the local sample of PNe is described. The method has been used to find almost 100 new PN candidates.
References:
Aller, L.H.: 1984, Physics of Thermal Gaseous Nebulae (Reidel, Dordrecht).
Cappellaro, E., Turatto, M., Salvadori, S., Sabbadin, F.: 1990, Astron. Astrophys. Suppl. 86, 503.
Neckel, Th., Vehrenberg, H.: 1990, Atlas of Galactic Nebulae: Part Ill. Treugesell-Verlag K.G., Diisseldorf. Sabbadin, F.: 1986, Astron. Astrophys. Suppl. 65,301.
Sabbadin, F., Capellaro, E., Salvadori, L., I Turatto, M.: 1989, Astrophys. J. Letters 1 347, L5.
Turatto, M., Cappellaro, E., Sabbadin, F., Salvadori, L.: 1990, Astron. J. 99, 11 70.
41-42 (PDF)
ESO
New ESO Preprints

ADS BibCode:
1991Msngr..64...41.
Author(s)/Affiliation(s):
ESO
AA(ESO)
42-44 (PDF)
S. Ortolani et al.
The striking CMD features of the very metal-rich globular cluster Terzan 1

ADS BibCode:
1991Msngr..64...42O
Author(s)/Affiliation(s):
Ortolani, S.; Bica, E.; Barbuy, B.
AA(Osservatorio Astronomico, Padua, Italy), AB(Rio Grande do Sul, Univ. Federal, Porto Alegre, Brazil), AC(Sao Paulo Univ., Brazil)
Abstract:
Color-magnitude diagrams of the very metal-rich globular cluster Terzan 1 are presented. Distance and reddening estimates for the cluster are made.
References:
Barbuy, B., Bica, E., Ortolani, S.: 1989, The Messenger 58,42.
Malkan, M.: 1982, in Astrophysical Parameters for Globular Clusters, eds. A.G.D. Philip, D.S. Hayes (Schenectady: Davis), p. 533.
Ortolani, S., Barbury, B., Bica, E.: 1990 AA 236, 362.
44-50 (PDF)
Ph. Amram et al.
Deep H-alpha survey of gaseous emission regions in the Milky Way and the Magellanic Clouds

ADS BibCode:
1991Msngr..64...44A
Author(s)/Affiliation(s):
Amram, Ph.; Boulesteix, J.; Georgelin, Y. M.; Laval, A.; Le Coarer, E.; Marcelin, M.; Rosado, M.
AA(Marseille, Observatoire, France), AB(Marseille, Observatoire, France), AC(Marseille, Observatoire, France), AD(Marseille, Observatoire, France), AE(Marseille, Observatoire, France), AF(Marseille, Observatoire, France), AG(Mexico Astronomical Inst., Mexico)
Abstract:
A deep H-alpha survey was conducted to obtain radial velocities of the ionized gas and the structure of the southern H II regions in the Galaxy and in the Magellanic Clouds. The telescope and high-performance software are described, and the reasons for the use of a 36 cm telescope and a photon-counting camera are presented. Some early survey results are reported.
References:
Amram, P., Boulesteix, J., Marcelin, M., 1991, Dynamics of Galaxies and their Molecular cloud distributions, F. Combes and F. Casoli Ed., IAU Symposium 146, p. 182.
Balick, B., Boeshaar, G.O., Gull, T.R. 1980, Astrophys. J., 242, 584.
Boulesteix, J., Georgelin, Y.P., Marcelin, M., Monnet, G., 1984, Instrumentation in Astronomy, V.A. Boksenberg, D.L. Crawford Ed., Proc. SPlE 445, p. 37.
Bronfman, L., Alvarez, H., Cohen, R.S., Thaddeus, P. 1989, Astrophys. J. Suppl. Ser. 71, 481.
Caswell, J.L., Haynes, R.F. 1987, Astron. Astrophys., 171, 261.
Davies, R.D., Elliott, K.H., Meaburn, J. 1976, M.N.R.A.S. 81, 89.
Downes, D., Wilson, T.L., Bieging, J., Wink, J. 1980, Astron. Astrophys. Suppl., 40, 379.
Grabelsky, D.A., Cohen, R.S., Bronfman, L., Thaddeus, P. 1988, Astrophys. J., 331, 181.
Georgelin, Y.M., Georgelin, Y.P. 1976, Astron. Astrophys., 49, 57.
Henize, K.G. 1956, Astrophys. J. Suppl., 2, 31 5.
Melnick, J. 1989, The Messenger, 57, 4.
50-53 (PDF)
T. Richtler et al.
Salpeter mass functions of young populous clusters in the LMC?

ADS BibCode:
1991Msngr..64...50R
Author(s)/Affiliation(s):
Richtler, T.; de Boer, K. S.; Sagar, R.
AA(Bonn, Univ.-Sternwarte, Germany), AB(Bonn, Univ.-Sternwarte, Germany), AC(Indian Inst. of Astrophysics, Bangalore, India)
Abstract:
Photometry was used to study several young LMC clusters and to test the proposition that the IMF of stars in such clusters has a universal shape. The proposition is not proved or refuted here, but it is shown that the very steep IMFs found by Mateo (1989) are not real but probably result from a special aspect of his data reduction.
References:
Alcaino, G., Alvarado, F., 1988, A.J., 95, 1724.
Bencivenni, D., Brocato, E., Buonanno, R., Castellani, V., 1990, ESO Preprint 729.
Bertelli, G., Betto, R., Bressan, A., Chiosi, C., Nasi, E., Vallenari, A,, AA Suppl., 85, 845.
Castellani, V., Chieffi, A., Straniero, O., 1990, Ap.J. Suppl., 74, 463.
Cayrel, R., Tarrab, I., Richtler, T., 1988, The Messenger, 54, 29.
Elson, R.A.W., Fall, S.M., Freeman, K.C., 1989, Ap. J., 336, 734.
Jiittner, A,, Stahl, O., Wolf, B., Baschek, B. 1991, in "The Magellanic Clouds", IAU Symp. 148, eds. R. Haynes and D. Milne, Kluwer Academic Publisher, p. 388.
Maeder, A., 1990, in "Astrophysical Ages and Dating Methods", eds. E. Vangioni-Flam, M. Casse, J. Audouze, J. Tran Thanh Van, Publ. Editions Frontieres, p. 71
Mateo, M. 1988, Ap.J., 331, 261.
Richtler, T., de Boer, K.S. 1989, in "Recent Developments of Magellanic Clouds Research", eds. K.S. de Boer, F. Spite, G.
Stasinska, Observatoire de Paris, p. 91.
Richtler, T., Sagar, R., Vallenari, A., de Boer, K.S. 1991, in "The Magellanic Clouds", IAU Symp. 148, eds. R. Haynes and D. Milne, Kluwer Academic Publishers, p. 222.
Westerlund, B.E. 1990, AA R, 2, 29.
50-50 (PDF)
ESO
Announcement of the 2nd ESO/CTIO Workshop on "Mass Loss on the AGB and Beyond"

ADS BibCode:
1991Msngr..64...50.
Author(s)/Affiliation(s):
ESO
AA(ESO)
53-55 (PDF)
O. Hainaut et al.
Whatever Happened to to Comet Halley?

ADS BibCode:
1991Msngr..64...53H
Author(s)/Affiliation(s):
Hainaut, O.; Smette, A.; West, R. M.
AA(ESO) AB(ESO) AC(ESO)
53-53 (PDF)
J. Breysacher
A "Happy Hour" at ESO Headquarters

ADS BibCode:
1991Msngr..64...53B
Author(s)/Affiliation(s):
Breysacher, J.
AA(ESO)
55-55 (PDF)
ESO
Recovery of (878) Mildred

ADS BibCode:
1991Msngr..64...55.
Author(s)/Affiliation(s):
ESO
AA(ESO)
56-60 (PDF)
W. W. Zeilinger, M. Stiavelli
IC 4296 - Observations of an elliptical galaxy core

ADS BibCode:
1991Msngr..64...56Z
Author(s)/Affiliation(s):
Zeilinger, W. W.; Stiavelli, M.
AA(ESO, Garching, Germany), AB(ESO, Garching, Germany)
Abstract:
The photometric and kinematic properties of the core of the elliptical galaxy IC 4296 are studied to obtain clues about the formation and dynamical evolution of the parent galaxy. The observed B-R and B-V gradients can be ascribed to the presence of a star cluster made of low-mass stars, to emission from ionized gas in the core, or to the presence of nuclear dust. The luminosity profile show apparently sizeable deviations from the R exp 1/4 law, which could be caused by stellar redistribution in the field of a supermassive black hole.
References:
Bertin, G., Saglia, R.P., and Stiavelli, M., 1988. Astroph. J., 330, 78.
Bertola, F., Bettoni, D., Rusconi, L., and Sedmak, G., 1984. Astron. J., 89, 356.
Efstathiou, G., Ellis, R.S., and Carter, D., 1980. Mon. Not. R. Astr. Soc., 193, 931.
Franx, M., and Illingworth, G., 1988. Astroph. J., 327, L55.
Franx, M., Illingworth, G., and Heckman, T., 1989. Astroph. J., 344, 613.
Gerhard, O., and Binney, J., 1985. Mon. Not R. Astr. Soc., 216, 467.
Jarvis, B., 1990. Poster at OAC conference on "Morphology and Physical Classification of Galaxies", Sant' Agata. Jedrzejewski, R., and Schechter, P.I., 1988.
Astroph. J. Lett., 330, L87.
Killeen, N.E.B., Bicknell, G.U., and Carter, D., 1986, Astroph. J., 309, 45.
Kormendy, J., 1985. Astroph. J., Lett,, 292, L9.
Lauer, T. 1985. Astroph. J. Suppl. Ser., 57, 1985. Astroph. J., 296, 20.
son, C.P., and Landauer, F.P., 1978. As- 473. P
adovani, P., Burg, R., and Edelson, R.A., troph. J., 221, 721.
Lauer, T. et al., 1991. Astroph. J. Lett., 369, 1990. Astroph. J., 353, 438.
Sparks, W.B., Wall, J.V., Thorne, D.J., Jor- L41. Terlevich, R., and Melnick, J., 1985. Mon. dan, P.R., van Breda, I.G., 1985. Mon. Not.
Lee, M.H., and Goodman, J., 1989. Astroph. Not. R. Astr. Soc., 213, 841. R. Astr. Soc., 217, 87.
J., 343, 594. Tonry, J., 1984. Astroph. J. Lett., 283, L27.
Norman, C., May, A., and van Albada, T.S., Young, P.J., Westphal, J.A., Kristian, J., Wil-
56-56 (PDF)
E. K. Grebel, T. Richtler
The metallicity of the young SMC cluster NGC 330 and its environment derived from CCD Stromgren photometry.

ADS BibCode:
1991Msngr..64...56G
Author(s)/Affiliation(s):
Grebel, E. K.; Richtler, T.
AA(Stern warte der Universitat Bonn, Germany) AB(Stern warte der Universitat Bonn, Germany)
60-60 (PDF)
C. Madsen
Planeta Terra - Nosso Destino Comum

ADS BibCode:
1991Msngr..64...60M
Author(s)/Affiliation(s):
Madsen, C.
AA(ESO)
61-63 (PDF)
F. P. Israel
Molecular absorption in Centaurus A - Probing a circumnuclear disk

ADS BibCode:
1991Msngr..64...61I
Author(s)/Affiliation(s):
Israel, F. P.
AA(Leiden, Sterrewacht, Netherlands)
Abstract:
Study of the molecular absorption by CO in the nucleus of NGC 5128, the parent galaxy of the strong radio source Centaurus A has revealed the existence of a circumnuclear disk of Cen A. The absorption lines of various molecular species of Cen A are examined, and the results show the possibility of finding out how an active galaxy nucleus is fed by the surrounding galaxy.
References:
Israel, F.P., van Dishoeck, E.F., Baas, F., Koornneef, J., de Graauw, Th.: 1990, AA 227, 342 (Paper I).
Israel, F.P., van Dishoeck, E.F., Baas, F., de Graauw, Th., Phillips, T.G.: 1991 AA in press (Paper 11).
Eckart, A,, Cameron, M., Genzel, R., Jackson, J.M., Rothermel, H., Stutzki, J., Rydbeck, G., Wiklind, T.: 1990 Ap.J. 365, 522.
63-65 (PDF)
B. Altieri, E. Giraud
Microlensing in the "cloverleaf" quasar H 1413+117 ?

ADS BibCode:
1991Msngr..64...63A
Author(s)/Affiliation(s):
Altieri, B.; Giraud, E.
AA(ESO) AB(ESO)
References:
Angonin, M.C.V,a nderriest, C., and Surdej J., 1990, in Gravitational Lensing, eds. Y. Mellier, B. Fort, G. Soucail (Springer-Ver-lag), 124.
Kayser, R., et al., 1990, Ap. J., 364, 15.
Maaswinkel, F., et al., 1988a, The Messenger, 48, 51.
Maaswinkel, F., et al., 1988b, The Messenger, 51, 41.
Magain, P., et al., 1988, Nature, 334, 325.
Roddier, F., in Progress in Optics, XIX, ed. E. Wolf (North-Holland, Amsterdam), 281.
65-66 (PDF)
L. Infante et al.
A new arc candidate in a compact cluster.

ADS BibCode:
1991Msngr..64...65I
Author(s)/Affiliation(s):
Infante, L.; Giraud, E.; Triay, R.
AA(Universidad Catolica de Chile, Santiago, Chile) AB(ESO) AC(Centre de Physique Theorique de Marseille, France)
References:
Butcher H., Oemler, A,, and Wells D.C., 1983, Ap. J. Suppl., 52, 183.
Fort B., 1990, in Gravitational Lensing, Eds. Y. Mellier, B. Fort, and G.Soucail (Springer- Verlag), p. 221.
Giraud E., Schneider P., and Wambsgans J., 1989, The Messenger, 56, 62.
Infante L., Pritchet C.J., and Quintana H., 1986, A.J., 91, 217.
Petrosian V., Bergmann A.G., and Lynds R., 1990, in Gravitational Lensing, Eds. Y. Mellier, B. Fort, and G. Soucail (Springer- Verlag), p. 254.
66-69 (PDF)
A. Moneti et al.
Broadband imaging performance of IRAC with the new Philips 64×64 array.

ADS BibCode:
1991Msngr..64...66M
Author(s)/Affiliation(s):
Moneti, A.; Moorwood, A.; Finger, G.; Meyer, M.; Gemperlein, H.
AA(ESO) AB(ESO) AC(ESO) AD(ESO) AE(ESO)
69-71 (PDF)
J. Guibert, O. Moreau
Photographic astronomy with MAMA.

ADS BibCode:
1991Msngr..64...69G
Author(s)/Affiliation(s):
Guibert, J.; Moreau, O.
AA(Centre d'Analyse des Images, Observatoire de Paris, France) AB(Centre d'Analyse des Images, Observatoire de Paris, France)
References:
Berger, J., Cordoni, J.-P., Fringant, A.-M., Guibert, J., Moreau, O., Reboul, H., Vanderriest, C.: 1991, Astron. Astrophys. Suppl. Series 87, 389.
Guibert, J., Soubiran, C., Geffert, M., 1990, in Systemes de Reference Spatio-temporels, Colloque Andre Danjon, 28-30 May 1990, eds. N. Capitaine and S. Debarbat, Imprimerie de I'Observatoire de Paris, p. 21 5.
Soubiran, C., 1991, Astron. Astrophys., in preparation.
70-70 (PDF)
ESO
Scientific associate

ADS BibCode:
1991Msngr..64...70.
Author(s)/Affiliation(s):
ESO
AA(ESO)
71-72 (PDF)
P. Grosbol
Central Computer Facilities of ESO

ADS BibCode:
1991Msngr..64...71G
Author(s)/Affiliation(s):
Grosbol, P.
AA(ESO)
71-71 (PDF)
ESO
ESO Image Processing Group: MIDAS Memo

ADS BibCode:
1991Msngr..64...71.
Author(s)/Affiliation(s):
ESO
AA(ESO)
72-72 (PDF)
ESO
Contents

ADS BibCode:
1991Msngr..64...72.
Author(s)/Affiliation(s):
ESO
AA(ESO)