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FORSCHUNGSBERICHT 1999-2001

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Sternwarte

Allgemeine Angaben:
Auf dem Hügel 71, 53121 Bonn
Telefon: 0228 / 73-3655
Fax: 0228 / 73-3672
eMail: username@astro.uni-bonn.de
WWW: http://www.astro.uni-bonn.de/~webstw

Hauptamtliche Professoren:
Prof. Dr. Klaas S. de Boer

Wissenschaftliches Personal:
Universitätsstellen
AOR Dr. Robert Breinhorst
Prof. Dr. em. Peter Brosche
AOR Dr. Michael Geffert
Prof. Dr. em. Edward H. Geyer
Dr. Michael Hilker
Dr. Günther Lay
Dr. Klaus Reif
Prof. Dr. em. Hans Schmidt
Apl. Prof. Dr. Wilhelm Seggewiss

Drittmittelstellen
Dipl.Phys. Martin Altmann (DFG)
Dipl.Phys. Klaus Bagschik (BMBF)
Dipl.Phys. Oliver Cordes (BMBF)
Dipl.Phys. Ole Marggraf (DFG)
Dipl.Phys. Philipp Richter (DLR)
Dipl.Math. Jörg Sanner (NRW)
Dr. Oliver Schwarz (DFG)

Forschungsschwerpunkte:
Struktur der Galaxis, Struktur der Magellanschen Wolken
(de Boer, Altmann, Braun, Geffert, Richter, Seggewiss)

Horizontalaststerne und deren Kinematik, Wolf-Rayet-Sterne
(de Boer, Altmann, Cordes, Seggewiss)

Interstellares Gas in der Galaxis und in den Magellanschen Wolken
(de Boer, Bluhm , Kahabka, Marggraf, Richter)

Offene Sternhaufen und Kugelsternhaufen, stellare Populationen
(Geffert, Dieball, Sanner)

Entwicklung opto-elektronischer Messgeräte für Teleskope
(Reif, Bagschik, Cordes, Poschmann)

Struktur von Galaxien und Galaxienhaufen
(Richtler, Dirsch, Hilker)

Besondere Forschungsförderung:
DFG Graduiertenkolleg: Die Magellanschen Wolken und andere Zwerggalaxien
(de Boer, Bluhm, Braun, Dieball, Dirsch, Kahabka, Seggewiss)

Verbundforschung Astronomie & Astrophysik: Entwicklung und Bau eines Vierkanal-Simultankamera für Photometrie: BUSCA
(Reif, Poschmann, Brauer, Cordes, de Boer, BMBF)

Veröffentlichungen:

Altmann, M., de Boer, K.S., Edelmann, H.
The population membership of sdB stars: a kinematical analysis
2001, Astron. Nachr. 322, 397-400

Altmann M., de Boer K.S.
Kinematical trends among the field horizontal branch stars
2000, A&A 353, 135-146

Bluhm, H., de Boer, K.S.
H_2, HD, and CO at the edge of 30 Dor in the LMC: the line of sight to SK -69 246
2001, A&A 379, 82-89

Bluhm, H., de Boer, K.S., Marggraf, O., Richter, P.
ORFEUS echelle spectra: Molecular hydrogen in disk, IVC, and HVC gas in front of the LMC
2001, A&A 367, 299-310

Bluhm H., Marggraf O., de Boer K.S., Richter P., Heber U.
ORFEUS II echelle spectra: deuterium and molecular hydrogen in the ISM towards BD +39 3226
1999, A&A 352, 287-296

Borissova J., Catelan M., Ferraro F.R., Spassova N., Buonanno R., Iannicola G., Richtler T., Sweigart A.V.
The outer-halo globular cluster NGC 6229. III. Deep CCD photometry
1999, A&A 343, 813-824

Brosche, P., Schwan, H., Schwarz, O.
The galactic motion field of K0-giants from Hipparcos data
2001, Astron. Nachr. 322, 15-42

Brosche P., Dick W.R., Schwarz O.
Neue Lichter auf ''Gotha 1798''
1999, Beitr"age zur Astronomiegeschichte 2, 128-144

Brosche P., Kokott W.
A Simple Error Formula for the Lunar Ephemeris of Regiomantanus
1999, Naturwiss. 86, 234

Brosche P., Odenkirchen M., Geffert M.
Instantaneous and average tidal radii of globular clusters
1999, New Astron. 4, 133-139

Brosche P., Schuh H.
Neue Entwicklungen in der Astrometrie und ihre Bedeutung f"ur die Geod"asie
1999, Z. f"ur Vermessungswesen 124, 343-350

Chen L., Geffert M., Wang J.J., Reif K., Braun J.M.
A proper motion study of the globular cluster M 10
2000, A&AS 145, 223-228

Cordes O.-M.
BUSCA
1999, Astronomie + Raumfahrt im Unterricht 36 (Heft 4/1999), 42-43

Cuypers J., Seggewiss W.
CCD photometry and astrometry of visual double and multiple stars of the HIPPARCOS catalogue. II. CCD photometry and differential astrometry of 288 southern ''Intermediate'' systems
1999, A&AS 139, 425-431

de Boer, K.S.
Von der Geburt bis zum Tod der Sterne
2001, in `... und Er w"urfelt doch!', H. M"uller-Krumbhaar und H.-F. Wagner (Hrsg.), Wiley-VCH, Weinheim (ISBN 3-527-40328-0), p. 71-83

de Boer, K.S.
Das Hertzsprung-Russell-Diagramm und das Mass der Sterne
2001, Astronomie und Raumfahrt 38 (6/2001), 18-22

de Boer, K.S., Dettmar, R.-J., Klein, U. (eds.)
Dwarf Galaxies and their Environment
2001, Graduiertenkolleg Conference, Shaker Verlag, Aachen (ISBN 3-8265-9264-6); www.astro.uni-bonn.de/~webgk/dgeproca.html

Dieball A., Grebel E.K.
Studies of binary star cluster candidates in the bar of the LMC. II.
2000, A&A 358, 897-909

Dieball A., Grebel E.K., Theis C.
Studies of binary star cluster candidates in the bar of the LMC. I. SL 353 and SL 349
2000, A&A 358, 144-153

Dirsch B.
Chemical Evolution in the Large Magellanic Cloud
2000, Shaker Verlag, Aachen-Maastricht, ISBN 3-8265-7981-X

Dirsch B., Richtler T., Gieren W.P., Hilker M.
Age and metallicity for six LMC star clusters and their surrounding field population
2000, A&A 360, 133-160

Drenkhahn G., Richtler T.
SN 1994D in NGC 4526: a normally bright type Ia supernova
1999, A&A 349, 877-886

Elsner B., Bastian U., Liubertas R., Scholz R.
Stellar Classification from Simulated DIVA Spectra
1999, Baltic Astronomy 8, 385-410

Geffert M., Maintz G.
First results of a photometric and astrometric study of the globular cluster M 71 (NCC 6838)
2000, A&AS 144, 227-233

Gieren W.P, Gómez M., Storm J., Moffett T.J., Infante L., Barnes T.G., III, Geisler D., Fouqué P.
Cepheid Variables in the Large Magellanic Cloud Cluster NGC 1866. I. New BVRI CCD Photometry
2000, ApJS 129, 111-121

Gilmore, G.F., de Boer, K.S., Favata, F., Hog, E., Lattanzi, M.G., Lindegren, L., Luri, X., Mignard, F., Perryman, M.A., de Zeeuw, P.T.
GAIA: origin and evolution of the Milky Way
2001, Proc. SPIE Vol. 4013, 453-472;

Gomez, M., Richtler, T., Infante L., Drenkhahn, G.
The globular cluster system of NGC 1316 (Fornax A)
2001, A&A 371, 875-898

Gonzalez R.A., Fruchter A.S., Dirsch B.
Galactic Extinction from Colors and Counts of Field Galaxies in WFPC2 Frames: an Application to GRB 970228
1999, ApJ 515, 69-78

Gringel W., Barnstedt J., de Boer K.S., Grewing M., Kappelmann N., Richter P.
ORFEUS II echelle spectra: molecular hydrogen at high velocities toward HD 93521
2000, A&A 358, L 37-40

Haberl F., Filipovic M.D., Pietsch W., Kahabka P.
A ROSAT PSPC catalogue of X-ray sources in the SMC region
2000, A&AS 142, 41-57

Heitsch F., Richtler T.
The metal-rich globular clusters of the Milky Way
1999, A&A 347, 455-472

Hilker M., Infante L., Richtler T.
The central region of the Fornax cluster. III. Dwarf galaxies, globular clusters, and cD halo - are there interrelations?
1999, A&AS 138, 55-70

Hilker M., Infante L., Vieira G., Kissler-Patig M., Richtler T.
The central region of the Fornax cluster. II. Spectroscopy and radial velocities of member and background galaxies
1999, A&AS 134, 75-86

Hilker M., Kissler-Patig M., Richtler T., Infante L., Quintana H.
The central region of the Fornax cluster. I. A catalog and photometric properties of galaxies in selected CCD fields
1999, A&AS 134, 59-73

Kahabka, P., de Boer, K.S., Br"uns, C.
ROSAT X-ray sources in the field of the LMC 1. Total LMC gas from the background AGN spectral fits
2001, A&A 371, 816-832

Kahabka P.
The nature of RXJ 0052.1-7319
2000, A&A 354, 999-1002

Kahabka P., Puzia T.H., Pietsch W.
Probing the gas content of the dwarf galaxy NGC3109 with background X-ray sources
2000, A&A 361, 491-499

Larsen S.S., Richtler T.
Young massive star clusters in nearby galaxies I. Identification and general properties of the cluster systems
1999, A&A 345, 59-72

Larsen S.S., Richtler T.
oung massive star clusters in nearby spiral galaxies. II. Correlations between cluster populations and host galaxy properties
2000, A&A 354, 836-846

Makarov V.V., Odenkirchen M., Urban S.
Internal velocity dispersion in the Hyades as a test for Tycho-2 proper motions
2000, A&A 358, 923-928

Marggraf O., de Boer K.S.
Absorption line systems on the line of sight from SN 1987A to SN 1993J and the intergalactic cloud in front of M 81
2000, A&A 363, 733-743

Niemela, V.S., Seggewiss, W., Moffat, A.F.J.
The nature of Sk -67 18 in the Large Magellanic Cloud: A multiple system with an O3f* component
2001, A&A 369, 544-551

Oblak E., Lampens P., Cuypers J., Halbwachs J.L., Martin E., Seggewiss W., Sinachopoulos D., van Dessel E., Charenton M., Duval D.
CCD photometry and astrometry for visual double and multiple stars of the HIPPARCOS catalogue. I. Presentation of the large scale project
1999, A&A 346, 523-531

Odenkirchen M., Brosche P.
The proper-motion signal of unresolved binaries in the HIPPARCOS catalogue
1999, Astron. Nachr. 320, 397-412

Panov K.P., Altmann M., Seggewiss W.
Long-term photometry of the Wolf-Rayet stars WR 137, WR 140, WR 148, and WR 153
2000, A&A 335, 607-616

Perryman, M., de Boer, K.S., Gilmore, G., Hog, E., Lattanzi, M.G., Lindegren, L., Luri, X., Pace, O., de Zeeuw, T.P.
GAIA: composition, formation and evolution of the galaxy
2001, A&A 369, 339-363

Petrov, G., Seggewiss, W., Dieball, A., Kovachev, B.
CCD standards for U and I in the open cluster NGC 7790
2001, A&A 376, 745-750

Puzia T. H., Kissler-Patig M., Brodie J.P., Huchra J.P.
The Age Difference Between The Globular Cluster Subpopulations in NGC4472
1999, AJ 118, 2734-2750

Puzia T.H., Kissler-Patig M., Brodie J.P., Schroder L.L.
Globular Clusters in the dE,N Galaxy NGC 3115 DW1: New Insights from Spectroscopy and Hubble Space Telescope Photometry
2000, AJ 120, 777-790

Reif K., Bagschik K., de Boer K.S., Schmoll J., M"uller Ph., Poschmann H., Klink G., Kohley R., Heber U., Mebold U.
BUSCA: A Telescope Instrumentation for Simultaneous Imaging in 4 optical bands
1999, SPIE Vol. 3649, 109-120, eds. M.M. Blouke and G.M. Williams jr.

Richter P.
ORFEUS II echelle spectra: H_2 measurements in the Magellanic Clouds
2000, A&A 359, 1111-1116

Richter P., de Boer K.S., Bomans D.J., Heithausen A., Koornneef J.
ORFEUS II echelle spectra: On the H_2/CO ratio in LMC gas toward LH 10
1999, A&A 351, 323-329

Richter P., de Boer K.S., Widmann H., Kappelmann N., Gringel W., , Grewing M., Barnstedt J.
Discovery of molecular hydrogen in a high-velocity cloud of the galactic halo
1999, Nature 402 (Nov. 25), 386-387

Richter P., Hilker M., Richtler T.
Str"omgren photometry in globular clusters: M55 & M22
1999, A&A 350, 476-484

Sagar, R., Munari, U., de Boer, K.S.
Multicolour CCD photometric and mass function study of the distant open star clusters NGC 3105, NGC 3603, Melotte 105, Hogg 15, NGC 4815, Pismis 20 and NGC 6253
2001, MNRAS 327, 23-45

Sagar R., Subramaniam A., Richtler T., Grebel E.K.
V,I CCD photometry of metal-rich bulge globular clusters: NGC 6553
1999, A&AS 135, 391-404

Sanchez-Fernandez C., Castro-Tirado A.J., ...... Dirsch B., et al.
Optical observations of the black hole candidate XTE J1550-564 during the September/October 1998 outburst
1999, A&A 349, L9-L12

Sanner, J., Brunzendorf, J., Will, J.-M., Geffert, M.
Photometric and kinematic studies of open star clusters. III. NGC 4103, NGC 5281, and NGC 4755
2001, A&A 369 511-536

Sanner, J., Geffert, M.
The IMF of open star clusters with Tycho-2
2001, A&A, 370, 87-99

Sanner J., Altmann M., Brunzendorf J., Geffert M.
Photometric and kinematic studies of open star clusters. II. NGC1960 (M36) and NGC2194
2000, A&A 357, 471-483

Sanner J., Geffert M., Brunzendorf J., Schmoll J.
Photometric and kinematic studies of open star clusters.I. NGC 581 (M 103)
1999, A&A 349, 448-456

Schwarz, O., de Boer, K.S., et al. (Hrsg.)
Astronomie - gymnasiale Oberstufe - Grundstudium
2001, PAETEC Verlag, Berlin (ISBN 3-89517-798-9)

Seggewiss W., Moffat A.F.J., van der Hucht K.A., Marchenko S.V.
Wolf-Rayet stars before and after HIPPARCOS
1999, Rev. Mex. A&A Conf. Ser 8, 33-40

Wakker, B.P., Kalberla, P.M.W., van Woerden, H., de Boer, K.S., Putman, M.E.
H I spectra and column densities toward HVC and IVC probes
2001, ApJS, 136, 537-578

Wang J.J., Chen L., Wu Z.Y., Gupta A.C., Geffert M.
Kinematics and CMD of the globular cluster NGC 4147
2000, A&AS 142, 373-387


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