Markus Wittkowski
Astronomer
European Southern Observatory
User Support Department
Karl-Schwarzschild-Str. 2
D-85748 Garching bei München
Germany
E-mail: mwittkow@eso.org
Phone : +49-89-3200-6769
Fax : +49-89-3200-6898
European
Southern Observatory (ESO)
ESO User Support
Department (USD)
ESO
Science Activities
Scientific Interests:
- Fundamental stellar properties
- Atmospheres and mass-loss of cool evolved stars
- Circumnuclear environment of active galactic nuclei
- Optical long-baseline interferometry
- Synergy of optical and radio interferometry
CV:
- Present (since 2003) User Support Astronomer and Associate Faculty Astronomer at the European Southern Observatory, Garching, Germany
- 2001-2003 VLTI Astronomer and Assistent Faculty Astronomer at the European Southern Observatory, Chile
- 2000-2001 Research Associate (Feodor-Lynen Fellow of the Humboldt Foundation) at the U.S. Naval Observatory, Washington, DC, USA
- 1998-1999 Staff Astronomer at the Max-Planck-Institut für Radioastronomie, Bonn, Germany
- 1998 PhD (Dr. rer. nat, Physics, Astronomy), University of Bonn, Germany
- 1995 Diploma (Physics), University of Heidelberg, Germany
Publications:
Publications
(link to ADS)
Selected
articles on stellar atmospheres of red giants:
Wittkowski, M., Aufdenberg, J.
P., Driebe, T., Roccatagliata, V.,
Szeifert, T., & Wolff, B. 2006, A&A, 460, 855-864 : Tests
of stellar model atmospheres by optical interferometry IV: VINCI
interferometry and UVES spectroscopy of Menkar.
Wittkowski, M., Hummel, C.A.,
Aufdenberg, J. P., & Roccatagliata,
V. 2006, A&A, 460, 843-854: Tests
of stellar model atmospheres by optical interferometry III: NPOI and
VINCI interferometry of the M0 giant gamma Sge covering
0.5-2.2 mu.
Wittkowski, M., Aufdenberg, J.
P., & Kervella, P. 2004, A&A
413, 711-723: Tests
of stellar model atmospheres by optical interferometry: VLTI/VINCI
limb-darkening measurements of the M4 giant Psi Phe.
Wittkowski, M., Hummel, C. A.,
Johnston, K. J., Mozurkewich, D.,
Hajian, A. R., & White, N. M. 2001, A&A 377, 981-993: Direct
multi-wavelength limb-darkening measurements of three late-type giants
with the Navy Prototype Optical Interferometer.
Selected
articles on atmospheres, circumstellar environments and mass loss of AGB stars and red supergiants:
Wittkowski, M., Hauschildt, P. H., Arroyo-Torres, B.,
& Marcaide, J. M. 2012, A&A, 540, L12: Fundamental properties and atmospheric structure of the red supergiant VY Canis Majoris based on VLTI/AMBER spectro-interferometry.
Wittkowski, M., Boboltz, D. A., Ireland, M.,
Karovicova, I., Ohnaka, K., Scholz, M., van Wyk, F., Whitelock, P., Wood, P. R., & Scholz, M. 2011,
A&A, 532, L7: Inhomogeneities in molecular
layers of Mira atmospheres.
Wittkowski, M., Boboltz, D. A.,
Driebe, T., Le Bouquin, J.-B., Millour, F., Ohnaka, K., & Scholz, M. 2008,
A&A, 479, L21-L24: J, H, K spectro-interferometry
of the Mira variable S Orionis.
Wittkowski, M., Boboltz, D. A.,
Ohnaka, K., Driebe, T., & Scholz, M. 2007, A&A, 470, 191-210: The
Mira variable S Orionis: relationships between the photosphere,
molecular layer, dust shell, and SiO maser shell at 4 epochs.
ESO press release 25/07 "Chronicle of
a Death Foretold. Two of the World's Largest Interferometric
Facilities Team-up to Study a Red Giant Star ".
Wittkowski, M., Langer,
N., & Weigelt, G. 1998, A&A, 340, L39-L42: Diffraction-limited
speckle-masking interferometry of the red supergiant VY CMa.
Selected
articles on AGN:
Weigelt, G., Wittkowski, M.,
Balega, Y. Y., Beckert, T., Duschl, W. J.,
Hofmann, K.-H., Men'shchikov, A. B., & Schertl, D. 2004, A&A,
425, 77-87: Diffraction-limited
bispectrum speckle interferometry of the nuclear region of the Seyfert
Galaxy NGC 1068 in the H and K' bands
Wittkowski, M., Kervella, P.,
Arsenault, R., Paresce, F., Beckert, T,
& Weigelt, G. 2004, A&A, 418, L39-L42: VLTI/VINCI
observations of the nucleus of NGC 1068 using the adaptive optics
system MACAO.
Wittkowski, M., Balega, Y., Beckert, T., Duschl, W. J., Hofmann, K.-H.,
& Weigelt, G. 1998, A&A 329, L45-L48: Diffraction-limited
76 mas speckle masking observations of the core of NGC 1068 with
the SAO 6 m telescope.
Selected
articles on the VLT Interferometer:
Wittkowski, M., Ballester, P., Bonneau, D., Chelli, A., Chesneau, O., Cruzalebes, P., Duvert, G.,
Hummel, C., Lafrasse, S., Mella, G., Melnick, J., Merand, A., Mourard, D., Percheron, I.,
Sacuto, S., Shabun, K., Stefl, S., Vinther, J. 2011, The Messenger, 145, 7-9: CalVin 3 - A New Release of the ESO Calibrator Selection Tool for the VLT Interferometer
Wittkowski, M., & Testi, L. 2010, The Messenger, 140, 53-56: Report on the ESO Workshop The Origin and Fate of the Sun: Evolution of Solar-mass Stars Observed with High Angular Resolution
Wittkowski, M. 2006, VLTI
School proceedings:
MIDI
and AMBER from the user's point of view.
Wittkowski, M., Comerón, F., Glindemann, A., Hummel, C., Morel,
S., Percheron, I., Petr-Gotzens, M., & Schöller, M. 2005, The
Messenger, 119, 14-17: Observing
with the
ESO VLT Interferometer.
Wittkowski, M., Paresce, F.,
Chesneau, O., Kervella, P., Meilland, A.,
Meisenheimer, K., & Ohnaka, K. 2005, The
Messenger, 119,
36-42: Recent
Astrophysical
Results from the VLTI.
Disclaimer: Any view or statement made on this webpage is not part of an official standpoint of ESO.
Last updated: 21 Sep. 2012
Markus Wittkowski