Messenger No. 89 (September 1997)

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Telescopes and Instrumentation

1-4 (PDF)
A. Kaufer et al.
FEROS, the fiber-fed extended range optical spectrograph for the ESO 1.52-m telescope.

ADS BibCode:
1997Msngr..89....1K
Section:
Telescopes and Instrumentation
Author(s)/Affiliation(s):
Kaufer, A.; Wolf, B.; Andersen, J.; Pasquini, L.
AA(Landessternwarte Heidelberg-Königstuhl, Germany) AB(Landessternwarte Heidelberg-Königstuhl, Germany) AC(Astronomical Observatory Copenhagen, Denmark) AD(ESO)
References:
Not available
5-10 (PDF)
M. Sarazin
Predicting observing conditions at ESO observatories - reality and perspectives.

ADS BibCode:
1997Msngr..89....5S
Section:
Telescopes and Instrumentation
Author(s)/Affiliation(s):
Sarazin, M.
AA(ESO)
Abstract:
Paper presented at the ESO Internal Workshop on forecasting astronomical observing conditions - 29 - 30 May 1997 at Garching (Germany).
References:
[Aussem 94] A. Aussem, F. Murtagh, M. Sarazin; Dynamical Recurrent Neural Networks and Pattern Recognition Methods for Time Series Prediction: Application to Seeing and Temperature Forecasting in the Content of ESO’s VLT Astronomical Weather Station; Vistas in Astronomy, 38, 357–374, 1994.
[Bougeault 95] P. Bougeault, Chen De Hui, B. Fleury, J. Laurent, Investigation of seeing by means of an atmospheric mesoscale numerical simulation, Appl. Opt., 34, 3481–3488, 1995.
[Erasmus 97] A. Erasmus, R. Peterson; The Feasibility of Forecasting Cirrus Cloud Cover and Water Vapour above Telescope Sites in Northern Chile; PASP 109: 208– 214, February 1997.
[CRS4 97] R. Deidda, M. Marrocu, A. Speranza; Feasibility Study of a Meteorological Prediction Model for ESO Observatories In Chile; VLT Technical Report CRS-17443– 0002, Apr. 1997.
[Masciadri 97] E. Masciadri, J. Vernin, P. Bougeault; Feasibility Study of Seeing Prevision using the MESO-NH meteorological model: a progress report; VLT Technical Report UNI-17400–0003; March 1997.

News from the NTT

11-13 (PDF)
G. Mathys
News from the NTT

ADS BibCode:
1997Msngr..89...11M
Section:
News from the NTT
Author(s)/Affiliation(s):
Mathys, G.
AA(ESO)
13-13 (PDF)
C. Madsen
ESO at the Leipzig fair

ADS BibCode:
1997Msngr..89...13M
Section:
News from the NTT
Author(s)/Affiliation(s):
Madsen, C.

Reports from Observers

14-18 (PDF)
P.-A. Duc, I. F. Mirabel
Tidal dwarf galaxies.

ADS BibCode:
1997Msngr..89...14D
Section:
Reports from Observers
Author(s)/Affiliation(s):
Duc, P.-A.; Mirabel, I. F.
AA(ESO) AB(SAp, Centre d’Études de Saclay, CEA, France)
Abstract:
The authors report the results of a multi-wavelength campaign on tidal dwarfs carried out at La Silla, with severel telescopes and instruments. The aim was to identify and characterise objects of tidal origin in the environment of nearby interacting systems.
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18-20 (PDF)
M. C. Festou et al.
The activity of comet 29P/Schwassmann-Wachmann 1 monitored through the CO J(2-1) emission line at 230 GHz.

ADS BibCode:
1997Msngr..89...18F
Section:
Reports from Observers
Author(s)/Affiliation(s):
Festou, M. C.; Gunnarsson, M.; Winnberg, A.; Rickman, H.; Tancredi, G.
AA(Observatoire Midi-Pyrénées, Toulouse, France) AB(Astronomiska Observatoriet, Uppsala, Sweden) AC(Onsala Rymdobservatorium, Sweden) AD(Astronomiska Observatoriet, Uppsala, Sweden) AE(Universidad de Montevideo, Uruguay)
Abstract:
CO J(2-1) emission from comet 29P/Schwassmann-Wachmann 1 at 230 GHz was observed on 16 occasions with the 15-m SEST antenna from 4 December 1996 until 2 January 1997. A clear signal was detected in all daily averaged spectra, and day-to-day nuclear output variations by a factor ≡2 were observed. The line position and shape showed remarkably stable characteristics, which justified to combine the spectra to produce line profiles with S/N greatly enhanced over previous observations of the same kind. Whatever the ultimate model proposed to explain the observations, important implications for the understanding of how CO molecules are stored in the nucleus and later released into the coma may be derived from this data set.
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21-28 (PDF)
V. de Lapparent et al.
The ESO Sculptor faint galaxy survey: large-scale structure and galaxy populations at 0.1

ADS BibCode:
1997Msngr..89...21D
Section:
Reports from Observers
Author(s)/Affiliation(s):
de Lapparent, V.; Galaz, G.; Arnouts, S.; Bardelli, S.; Ramella, M.
AA(CNRS, Institut d’Astrophysique de Paris) AB(CNRS, Institut d’Astrophysique de Paris) AC(CNRS, Institut d’Astrophysique de Paris) AD(Osservatorio Astronomico di Trieste) AE(Osservatorio Astronomico di Trieste)
Abstract:
We describe the current status of the ESO-Sculptor Survey. The observational goal has been to produce a new multi-color photometric catalogue of galaxies in a region located near the southern galactic pole, complemented by a spectroscopic survey. The primary scientific objectives are (1) to map the spatial distribution of galaxies at 0.1 < z < 0.5 and (2) to provide a database for studying the variations in the spectro-photometric properties of distant galaxies as a function of redshift and local environment. The photometric survey provides total magnitudes in the bands B, V (Johnson) and R (Cousins) to limiting magnitudes of 24.5, 24.0, 23.5 respectively. To these limits, the catalog contains about 9500, 12150, 13000 galaxies in B, V, R bands respectively and is the first large digital multi-colour photometric catalog at this depth. This photometric survey provides the entry catalog for a fully-sampled redshift survey of ~ 700 galaxies with R < 20.5. Here, we describe the characteristics of the photometric and spectroscopic samples of the ESO-Sculptor, and report the results obtained so far on the large-scale structure, the spectral classification, and the luminosity function.
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http://www-sdss.fnal.gov:8000/
http://msowww.anu.edu.au/colless/2dF/
http://www.ucolick.org/deep/home.html
http://www.astro.ubc.ca/LMT/lmt.html
28-31 (PDF)
L. Kaper et al.
Massive stars running through space.

ADS BibCode:
1997Msngr..89...28K
Section:
Reports from Observers
Author(s)/Affiliation(s):
Kaper, L.; Comerón, F.; van Loon, J. T.; Zijlstra, A. A.

Abstract:
OB runaways are massive (OB) stars that travel through interstellar space with anomalously high velocities. How did these massive stars obtain such a high velocity? Recent observations carried out at the European Southern Observatory have provided compelling evidence that, at least in one case, the supernova explosion of a massive binary companion is responsible for the large space velocity gained by the remaining OB star. The observational evidence is based on the discovery of a wind bow shock around the high-mass X-ray binary Vel X-1, an X-ray pulsar with a B-supergiant companion. Here the authors report on new high-resolution coronographic observations of the bow shock obtained wind ESO's New Technology Telescope.
References:
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31-33 (PDF)
F. Comerón et al.
Oph 2320.8-1721, a young brown dwarf in the ρ Ophiuchi cluster: views from the ground and from space.

ADS BibCode:
1997Msngr..89...31C
Section:
Reports from Observers
Author(s)/Affiliation(s):
Comerón, F.; Claes, P.; Rieke, G.
AA(ESO) AB(ESA, Villafranca del Castillo, Spain) AC(Steward Observatory, Tucson, Arizona, USA)
References:
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33-37 (PDF)
J.-L. Monin, H. Geoffray
PMS binaries in southern molecular clouds observed with ADONIS + COMIC.

ADS BibCode:
1997Msngr..89...33M
Section:
Reports from Observers
Author(s)/Affiliation(s):
Monin, J.-L.; Geoffray, H.
AA(Laboratoire d’Astrophysique – Observatoire de Grenoble, France) AB(Laboratoire d’Astrophysique – Observatoire de Grenoble, France)
Abstract:
The authors have used ADONIS + SHARP/COMIC to determine the spectral energy distribution of close pre-main-sequence star binaries in the full 1 - 5 μm range. They have used this result to determine the physical characteristics of both components of these close binaries.
References:
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Reipurth & Zinnecker, 1993. A&A. 278, 81.
37-40 (PDF)
W. Brandner et al.
An ESO 3.6m/adaptive optics search for young brown dwarfs and giant planets

ADS BibCode:
1997Msngr..89...37B
Section:
Reports from Observers
Author(s)/Affiliation(s):
Brandner, W.; Alcala, J. M.; Frink, S.; Kunkel, M.
AA(University of Illinois at Urbana-Champaign, USA) AB(Osservatorio Astronomico di Capodimonte, Napoli, Italy) AC(Astronomisches Rechen-Institut Heidelberg, Germany) AD(Max-Planck-Institut für Astronomie, Heidelberg, Germany)
References:
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40-40 (PDF)
ESO
The ESO Exhibition at the IAU General Assembly in Kyoto, Japan

ADS BibCode:
1997Msngr..89...42.
Section:
Reports from Observers
Author(s)/Affiliation(s):
ESO
AA(ESO)
41-41 (PDF)
L.B. Lucy
Enhanced Resolution with Two-Channel Deconvolution Codes

ADS BibCode:
1997Msngr..89...41L
Section:
Reports from Observers
Author(s)/Affiliation(s):
Lucy, L.B.
AA(ST-ECF)
References:
Lucy, L.B. 1990, in The Restoration of HST Images and Spectra, eds. R.L. White & R.J. Allen, p. 80.
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Hook, R.N., Lucy, L.B., Stockton, A., & Ridgway, S. 1994, ST-ECF Newsletter, No. 21, p. 16.
Magain, P., Courbin, F., & Sohy, S. 1997, The Messenger, No. 88, p. 28.
Snyder, D.L., 1990, in The Restoration of HST Images and Spectra, eds. R.L. White & R.J. Allen, p.56.

Announcements

42-43 (PDF)
ESO
Personnel moveements

ADS BibCode:
1997Msngr..89Q..42.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)
42-42 (PDF)
ESO
ESO Astrophysics Symposia Proceedings

ADS BibCode:
1997Msngr..89R..42.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)
42-42 (PDF)
ESO
Vacancy notice, staff astronomer on La Silla

ADS BibCode:
1997Msngr..89S..42.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)
43-43 (PDF)
ESO
List of scientific preprints, March - September 1997

ADS BibCode:
1997Msngr..89Q..43.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)
43-43 (PDF)
ESO
Uzbek Astronomy Looking Ahead Towards the Future

ADS BibCode:
1997Msngr..89R..43.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)

Messenger Index

44-44 (PDF)
ESO
Contents

ADS BibCode:
1997Msngr..89Q..44.
Section:
Messenger Index
Author(s)/Affiliation(s):
ESO
AA(ESO)

Announcements

44-44 (PDF)
ESO
ESO conference proceedings still available

ADS BibCode:
1997Msngr..89R..44.
Section:
Announcements
Author(s)/Affiliation(s):
ESO
AA(ESO)