Dr. Sebastian Wolf Profile

Dr. Sebastian Wolf

at Max-Planck-Institut für Radioastronomie

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 28 July 2008 Paper

Science case for 1 mas spectro-imagining in the near-infrared

Paulo Garcia, Jean-Philippe Berger, Alessandro Marconi, Alexander Krivov, Andrea Chiavassa, Bernard Aringer, Brunella Nisini, Denis Defrére, Dimitri Mawet, Dieter Schertl, Eric Tatuli, Eric Thiébaut, Fabien Baron, Fabien Malbet, Gaspard Duchéne, Gerd Weigelt, Gilles Duvert, Gilles Henri, Hubert Klahr, Jean Surdej, Jean-Charles Augereau, Jean-François Claeskens, John Young, Josef Hron, Karine Perraut, Karl-Heinz Hofmann, Leonardo Testi, Margarida Cunha, Mercedes Filho, Michaël De Becker, Olivier Absil, Olivier Chesneau, Pierre Collette, Pierre-Olivier Petrucci, Ralph Neuhaeuser, Romano Corradi, Sónia Antón, Sebastian Wolf, Sebastian Hoenig, Stephanie Renard, Thierry Forveille, Thomas Beckert, Thomas Lebzelter, Tim Harries, Virginie Borkowski, Xavier Bonfils

Proceedings Volume 7013, 70134N (2008) https://doi.org/10.1117/12.789216

KEYWORDS: Stars, Telescopes, Spatial resolution, Planets, Galactic astronomy, Adaptive optics, Spectral resolution, Visibility, Interferometry, High dynamic range imaging

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We present the work developed within the science team of the Very Large Telescope Interferometer Spectro-Imager (VSI) during the Phase A studies. VSI aims at delivering ~ 1 milliarcsecond resolution data cubes in the near-infrared, with several spectral resolutions up to 12 000, by combining up to 8 VLTI telescopes. In the design of an instrument, the science case plays a central role by supporting the instrument construction decision, defining the top-level requirements and balancing design options. The overall science philosophy of VSI was that of a general user instrument serving a broad community. The science team addressed themes which included several areas of astrophysics and illustrated specific modes of operation of the instrument: a) YSO disks and winds; b) Multiplicity of young stars; c) Exoplanets; d) Debris disks; e) Stellar surface imaging; f) The environments of evolved stars; g) AGN tori; h) AGN's Broad Line Region; i) Supermassive black-holes; and j) Microlensing. The main conclusions can be summarized as follows: a) The accessible targets and related science are extremely sensitive to the instrument limiting magnitude; the instrument should be optimized for sensitivity and have its own fringe tracker. b) Most of the science cases are readily achievable with on-axis fringe tracking, off-axis fringe tracking enabling extra science. c) In most targets (YSOs, evolved stars and AGNs), the interpretation and analysis of circumstellar/nuclear dust morphology requires direct access to the gas via spectral resolved studies of emission lines, requiring at least a spectral resolution of 2 500. d) To routinely deliver images at the required sensitivity, the number of telescopes in determinant, with 6 telescopes being favored. e) The factorial increase in the number of closure phases and visibilities, gained in a single observation, makes massive surveys of parameters and related science for the first time possible. f) High dynamic range imaging and very high dynamic range differential closure phase are possible allowing the study of debris disks and characterization of pegasides. g) Spectro-imaging in the near-infrared is highly complementary to ALMA, adaptive optics and interferometric imaging in the thermal infrared.

Proceedings Article | 28 July 2008 Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

B. Lopez, P. Antonelli, S. Wolf, S. Lagarde, W. Jaffe, R. Navarro, U. Graser, R. Petrov, G. Weigelt, Y. Bresson, K. Hofmann, U. Beckman, T. Henning, W. Laun, Ch. Leinert, S. Kraus, S. Robbe-Dubois, F. Vakili, A. Richichi, P. Abraham, J.-C. Augereau, J. Behrend, Ph. Berio, N. Berruyer, O. Chesneau, J. Clausse, C. Connot, K. Demyk, W. Danchi, M. Dugué, G. Finger, S. Flament, A. Glazenborg, H. Hannenburg, M. Heininger, Y. Hugues, J. Hron, S. Jankov, F. Kerschbaum, G. Kroes, H. Linz, J.-L. Lizon, Ph. Mathias, R. Mathar, A. Matter, J. Menut, K. Meisenheimer, F. Millour, N. Nardetto, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosoni, J. Olofsson, Y. Rabbia, T. Ratzka, F. Rigal, A. Roussel, D. Schertl, F.-X. Schmider, B. Stecklum, E. Thiebaut, M. Vannier, B. Valat, K. Wagner, L. B. F. M. Waters

Proceedings Volume 7013, 70132B (2008) https://doi.org/10.1117/12.789412

KEYWORDS: Mid-IR, Planets, Stars, Interferometry, Spectral resolution, Spectroscopy, Mirrors, Telescopes, Sensors, Observatories

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Proceedings Article | 28 June 2006 Paper

Aperture synthesis image reconstruction study for the mid-infrared VLTI imager MATISSE

Karl-Heinz Hofmann, Stefan Kraus, Bruno Lopez, Gerd Weigelt, Sebastian Wolf

Proceedings Volume 6268, 62683I (2006) https://doi.org/10.1117/12.671678

KEYWORDS: Visibility, Astatine, Image restoration, Mid-IR, Synthetic apertures, Image quality, Telescopes, Interferometry, Imaging systems, Image resolution

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Proceedings Article | 28 June 2006 Paper

MATISSE: a four beam combiner in the mid-infrared for the VLTI

S. Lagarde, B. Lopez, P. Antonelli, U. Beckman, J. Behrend, Y. Bresson, O. Chesneau, M. Dugué, A. Glazenborg, U. Graser, K. Hofmann, W. Jaffe, Ch. Leinert, F. Millour, J. Menut, R. Petrov, T. Ratzka, G. Weigelt, S. Wolf, P. Abraham, C. Connot, T. Henning, M. Heininger, Y. Hugues, S. Kraus, W. Laun, A. Matter, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosoni, S. Robbe-Dubois, A. Roussel, D. Schertl, F. Vakili, K. Wagner, L.B.F.M. Waters

Proceedings Volume 6268, 62683M (2006) https://doi.org/10.1117/12.671690

KEYWORDS: Sensors, Signal to noise ratio, Telescopes, Mid-IR, Spectral resolution, Interferometers, Spectroscopes, Phase measurement, Interferometry, Mirrors

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Proceedings Article | 27 June 2006 Paper

Disks around young stars with VLTI/MIDI

Roy van Boekel, Péter Ábrahám, Serge Correia, Alex de Koter, Carsten Dominik, Anne Dutrey, Thomas Henning, Ágnes Kóspál, Régis Lachaume, Christoph Leinert, Hendrik Linz, Michiel Min, László Mosoni, Thomas Preibisch, Sascha Quanz, Thorsten Ratzka, Alexander Schegerer, Rens Waters, Sebastian Wolf, Hans Zinnecker

Proceedings Volume 6268, 62680D (2006) https://doi.org/10.1117/12.673777

KEYWORDS: Stars, Visibility, Data modeling, Crystals, Surface conduction electron emitter displays, Silicates, Interferometry, Telescopes, Mid-IR, Infrared radiation

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Proceedings Article | 27 June 2006 Paper

MATISSE: perspective of imaging in the mid-infrared at the VLTI

B. Lopez, S. Wolf, S. Lagarde, P. Abraham, P. Antonelli, J. Augereau, U. Beckman, J. Behrend, N. Berruyer, Y. Bresson, O. Chesneau, J. Clausse, C. Connot, K. Demyk, W. Danchi, M. Dugué, S. Flament, A. Glazenborg, U. Graser, T. Henning, K. Hofmann, M. Heininger, Y. Hugues, W. Jaffe, S. Jankov, S. Kraus, W. Laun, Ch. Leinert, H. Linz, Ph. Mathias, K. Meisenheimer, A. Matter, J. Menut, F. Millour, U. Neumann, E. Nussbaum, A. Niedzielski, L. Mosonic, R. Petrov, T. Ratzka, S. Robbe-Dubois, A. Roussel, D. Schertl, F.-X. Schmider, B. Stecklum, E. Thiebaut, F. Vakili, K. Wagner, L. B. F. M. Waters, G. Weigelt

Proceedings Volume 6268, 62680Z (2006) https://doi.org/10.1117/12.671636

KEYWORDS: Mid-IR, Planets, Stars, Spectral resolution, Interferometry, Spectroscopy, Signal to noise ratio, Visibility, Spatial resolution, Sensors

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Proceedings Article | 20 October 2004 Paper

Recombining light of the VLTI at 10 microns by densifying the images

Michel Dugue, Bruno Lopez, Frank Przygodda, Uwe Graser, Philippe Gitton, Sebastian Wolf, Philippe Mathias, Pierre Antonelli, J. C. Augereau, Nicole Berruyer, Yves Bresson, Olivier Chesneau, Anne Dutrey, Sebastien Flament, Annelie Glazenborg-Kluttig, Andreas Glindemann, Thomas Henning, Karl-Heinz Hofmann, Stephane Lagarde, Yves Hugues, Christoph Leinert, Klaus Meisenheimer, Jean-Luc Menut, Ralf-Rainer Rohloff, Alain Roussel, Eric Thiebaut, Gerd Weigelt

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551543

KEYWORDS: Telescopes, Synthetic apertures, Mid-IR, Interferometry, Astatine, Segmented mirrors, Observatories, Optical instrument design, Stars, Mirrors

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Proceedings Article | 20 October 2004 Paper

APreS-MIDI, APerture Synthesis in the MID-infrared with the VLTI

Bruno Lopez, Frank Przygodda, Sebastian Wolf, Michel Dugue, Uwe Graser, Philippe Gitton, Philippe Mathias, Pierre Antonelli, J. C. Augereau, Nicole Berruyer, Yves Bresson, Olivier Chesneau, Anne Dutrey, Sebastien Flament, Annelie Glazenborg, Andreas Glindemann, Thomas Henning, Karl-Heinz Hofmann, Yves Hugues, Stephane Lagarde, Christoph Leinert, Klaus Meisenheimer, Jean-Luc Menut, Ralf-Rainer Rohloff, Alain Roussel, Eric Thiebaut, Gerd Weigelt

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551419

KEYWORDS: Mid-IR, Stars, Telescopes, Visibility, Synthetic apertures, Interferometry, Interferometers, Astatine, Galactic astronomy, Space telescopes

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Proceedings Article | 14 February 2003 Paper

High-resolution continuum polarization measurements in the near-infrared to submillimeter wavelength range

Sebastian Wolf, Bringfried Stecklum, Thomas Henning, Ralf Launhardt, Hans Zinnecker

Proceedings Volume 4843, (2003) https://doi.org/10.1117/12.458863

KEYWORDS: Polarization, Magnetism, Stars, Binary data, Polarimetry, Light scattering, Scattering, Galactic astronomy, Astronomy, Active galactic nuclei

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Proceedings Article | 14 February 2003 Paper

Mass-loss of hot stars studied with spectropolarimetric interferometry (SPIN)

Olivier Chesneau, S. Wolf, Karine Rousselet-Perraut, Denis Mourard, Chantal Stehle, Farrokh Vakili

Proceedings Volume 4843, (2003) https://doi.org/10.1117/12.458618

KEYWORDS: Stars, Polarization, Interferometry, Polarimetry, Visibility, Signal detection, Interferometers, Monte Carlo methods, Spherical lenses, Scattering

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Proceedings Article | 14 February 2003 Paper

MC3D: simulating polarization maps and more

Sebastian Wolf, Thomas Henning, Bringfried Stecklum

Proceedings Volume 4843, (2003) https://doi.org/10.1117/12.458867

KEYWORDS: Polarization, Light scattering, Spherical lenses, Scattering, Radiative transfer, Stars, Monte Carlo methods, 3D modeling, Electrons, Thomson scattering

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Showing 5 of 11 publications

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