Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Felix Widmann"'
Autor:
Saavidra Perera, Jörg-Uwe Pott, Julien Woillez, Martin Kulas, Wolfgang Brandner, Sylvestre Lacour, Felix Widmann
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 511:5709-5717
For sensitive optical interferometry, it is crucial to control the evolution of the optical path difference (OPD) of the wavefront between the individual telescopes of the array. The OPD between a pair of telescopes is induced by differential optical
Autor:
Antonia Drescher, Maximilian Fabricius, Taro Shimizu, Julien Woillez, Pierre Bourget, Felix Widmann, Jinyi Shangguan, Christian Straubmeier, Matthew Horrobin, Nicolas Schuhler, Frank Eisenhauer, Frederic Gonté, Stefan Gillessen, Thomas Ott, Guy Perrin, Thibaut Paumard, Wolfgang Brandner, Laura Kreidberg, Karine Perraut, Jean-Baptiste Le Bouquin, Paulo J. V. Garcia, Sebastian Hoenig, Denis Defrère, Guillaume Bourdarot, Helmut Feuchtgruber, Reinhard Genzel, Michael Hartl, Frank Haussmann, Dieter Lutz, Nikhil More, Christian Rau, Jonas Sauter, Sinem Uysal, Patrick Wessely, Ekkehard Wieprecht, Lukas Wimmer, Senol Yazici
Publikováno v:
Optical and Infrared Interferometry and Imaging VIII.
Autor:
Odele Straub, P. T. de Zeeuw, Maryam Habibi, A. Drescher, S. von Fellenberg, Julia Stadler, M. Bauboeck, Gabriele Ponti, A. Young, G. Witzel, R. Genzel, T. Ott, Frank Eisenhauer, S. Gillesen, Felix Widmann, Y. Dallilar
Publikováno v:
Astronomy & Astrophysics, 658:A111
A&A
A&A
Synchrotron processes, the radiative processes associated with the interaction of energetic charged particles with magnetic field, are of interest in many areas in astronomy, from the interstellar medium to extreme environments near compact objects.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24df2e6cef1c96b23c2ca314575d0385
https://ui.adsabs.harvard.edu/abs/2022A&A...658A.111D
https://ui.adsabs.harvard.edu/abs/2022A&A...658A.111D
Autor:
Sebastiano D. von Fellenberg, Stefan Gillessen, Julia Stadler, Michi Bauböck, Reinhard Genzel, Tim de Zeeuw, Oliver Pfuhl, Pau Amaro Seoane, Antonia Drescher, Frank Eisenhauer, Maryam Habibi, Thomas Ott, Felix Widmann, Alice Young
Publikováno v:
Astrophysical Journal Letters, 932(1):L6
We present a large ${\sim 30" \times 30"}$ spectroscopic survey of the Galactic Center using the SINFONI IFU at the VLT. Combining observations of the last two decades we compile spectra of over $2800$ stars. Using the Bracket-$\gamma$ absorption lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6aa621b369ec070f3e79aa864f860768
https://hdl.handle.net/1887/3561327
https://hdl.handle.net/1887/3561327
Autor:
Felix Widmann, Stefan Gillessen, Thomas Ott, Taro Shimizu, Frank Eisenhauer, Maximilian Fabricius, Julien Woillez, Frédéric Gonté, Matthew Horrobin, Jingyi Shangguan, Senol Yazici, Guy Perrin, Thibaut Paumard, Wolfgang Brandner, Laura Kreidberg, Christian Straubmeier, Karin Perraut, Jean-Baptiste Le Bouquin, Paulo Garcia, Sebastian Hönig, Denis Defrère, Guillaume Bourdarot, Antonia Drescher, Helmut Feuchtgruber, Reinhard Genzel, Michael Hartl, Dieter Lutz, Nikhil More, Christian Rau, Sinem Uysal, Ekkehard Wieprecht
With the upgrade from GRAVITY to GRAVITY$^+$ the instrument will evolve into an all-sky interferometer that can observe faint targets, such as high redshift AGN. Observing the faintest targets requires reducing the noise sources in GRAVITY as much as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::381c1391d9b9921440f75934589b45fd
Autor:
N. M. Förster Schreiber, M. L. Bolzer, Pierre-Olivier Petrucci, E. Sturm, Jason Dexter, Thibaut Paumard, Florentin Millour, Christopher A. Onken, Christian Straubmeier, Sebastian F. Hönig, Daniel Rouan, Makoto Kishimoto, Reinhard Genzel, Yann Clénet, P. T. de Zeeuw, Julien Woillez, Ric Davies, D. Kaltenbrunner, António Amorim, A. Drescher, Jinyi Shangguan, S. von Fellenberg, D. Gratadour, Misty C. Bentz, Linda J. Tacconi, J. Stadler, Karine Perraut, Felix Widmann, P. Vermot, Amiel Sternberg, Thomas Ott, Paulo J. V. Garcia, Rachel Street, Wolfgang Brandner, Odele Straub, Dieter Lutz, Hagai Netzer, Mercedes Prieto, Taro Shimizu, Stefan Gillessen, Konrad R. W. Tristram, Oliver Pfuhl, M. Bauböck, Frank Eisenhauer, Andreas Eckart, Guy Perrin, Sylvestre Lacour
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astron.Astrophys.
Astron.Astrophys., 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astronomy and Astrophysics, 654, 1-14
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astron.Astrophys.
Astron.Astrophys., 2021, 654, pp.A85. ⟨10.1051/0004-6361/202141426⟩
Astronomy and Astrophysics, 654, 1-14
The angular size of the broad line region (BLR) of the nearby active galactic nucleus (AGN) NGC 3783 has been spatially resolved by recent observations with VLTI/GRAVITY. A reverberation mapping (RM) campaign has also recently obtained high quality l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1aab43db09055b853d3eadf05fdca70b
https://hal.archives-ouvertes.fr/hal-03441771
https://hal.archives-ouvertes.fr/hal-03441771
Autor:
Wolfgang Brandner, A. Jiménez-Rosales, Mark Gurwell, Stefan Hippler, Christian Straubmeier, Th. Henning, Fiona A. Harrison, Jason Dexter, N. M. Förster Schreiber, F. Vincent, Pierre Kervella, Daryl Haggard, S. Yazici, Silvia Scheithauer, Oliver Pfuhl, Y. Dallilar, T. Taro Shimizu, Idel Waisberg, Odele Straub, K. Foster, Felix Widmann, Sera Markoff, Dieter Lutz, J.-B. Le Bouquin, M. Bauböck, Matthew Horrobin, Yann Clénet, P. T. de Zeeuw, Gabriele Ghisellini, Howard A. Smith, Frederick K. Baganoff, Daniel Stern, Thibaut Paumard, Eckhard Sturm, Ric Davies, M. Nowak, Andreas Eckart, Andreas Kaufer, Sebastian Rabien, Laurent Jocou, Paulo J. V. Garcia, Ekkehard Wieprecht, Reinhard Genzel, Jinyi Shangguan, G. Rodríguez-Coira, Patrick Lowrance, C. J. Hailey, Thomas Ott, S. Zhang, A. Drescher, G. Ponti, Giovanni G. Fazio, Steven P. Willner, S. D. von Fellenberg, Linda J. Tacconi, Maryam Habibi, H. Bonnet, Julien Woillez, V. Lapeyrère, Sylvestre Lacour, António Amorim, Erich Wiezorrek, Xavier Haubois, Guy Perrin, J. Neilsen, K. Mori, Eric Gendron, Frank Eisenhauer, G. Heißel, Pierre Léna, Joseph L. Hora, Karine Perraut, Charles F. Gammie, Feng Gao, G. Witzel, Gérard Zins, Mark Morris, André Young, Julia Stadler, Jean-Phillipe Berger, Hope Boyce, Stefan Gillessen, Lieselotte Jochum, Roberto Abuter
Publikováno v:
Astronomy and Astrophysics, 654, 1-18
Astronomy & Astrophysics, 654:A22. EDP Sciences
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A22. ⟨10.1051/0004-6361/202140981⟩
Astronomy & Astrophysics
Astronomy & Astrophysics, 654:A22. EDP Sciences
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 654, pp.A22. ⟨10.1051/0004-6361/202140981⟩
Astronomy & Astrophysics
We report the time-resolved spectral analysis of a bright near-infrared and moderate X-ray flare of Sgr A*. We obtained light curves in the $M$-, $K$-, and $H$-bands in the mid- and near-infrared and in the $2-8~\mathrm{keV}$ and $2-70~\mathrm{keV}$
Autor:
A. Drescher, S. von Fellenberg, R. Garcia-Lopez, E. F. van Dishoeck, Lucas Labadie, Gilles Duvert, Christian Straubmeier, Myriam Benisty, Th. Henning, Jerome Bouvier, Stefan Gillessen, Sylvestre Lacour, Julia Stadler, T. Taro Shimizu, Silvia Scheithauer, Felix Widmann, Eckhard Sturm, P. Garciaınst, R. Grellmann, Laurent Jocou, Paola Caselli, Evelyne Alecian, Jean-Phillipe Berger, T. Ott, Z. Hubert, V. Lapeyrère, Eric Gendron, Frank Eisenhauer, Frederic H. Vincent, J. Sanchez-Bermudez, Andreas Eckart, A. Caratti o Garatti, A. P. Sousa, Pierre Léna, António Amorim, Natascha M. Förster-Schreiber, Pierre Kervella, L. Klarmann, Odele Straub, Dieter Lutz, J.-B. Le Bouquin, Thibaut Paumard, R. Genzel, Catherine Dougados, Y.-I. Bouarour, Yann Clénet, P. T. de Zeeuw, Wolfgang Brandner, Ric Davies, Jinyi Shangguan, Matthew Horrobin, Francois Menard, G. Heissel, Karine Perraut, Linda J. Tacconi, Guy Perrin, Stefan Hippler
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, In press, ⟨10.1051/0004-6361/202141624⟩
Astronomy & Astrophysics, 655
Astronomy and Astrophysics-A&A, EDP Sciences, In press, ⟨10.1051/0004-6361/202141624⟩
Astronomy & Astrophysics, 655
These protoplanetary disks in T Tauri stars play a central role in star and planet formation. We spatially resolve at sub-au scales the innermost regions of a sample of T Tauri's disks to better understand their morphology and composition. We extende
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca5000c994403f555cd2e29fa68bef96
Autor:
Christian Straubmeier, Stefan Hippler, Th. Henning, Feng Gao, Gérard Zins, Maryam Habibi, Linda J. Tacconi, Oliver Pfuhl, V. Lapeyrère, Xavier Haubois, Guy Perrin, A. Jiménez-Rosales, Felix Widmann, G. Heißel, António Amorim, Stefan Gillessen, Yann Clénet, P. T. de Zeeuw, H. Bonnet, Jason Dexter, Paulo J. V. Garcia, Julien Woillez, Ric Davies, Lieselotte Jochum, Eric Gendron, G. Rodríguez-Coira, Eckhard Sturm, Laurent Jocou, Jinyi Shangguan, S. Yazici, T. Taro Shimizu, Thibaut Paumard, M. Nowak, M. Bauböck, Karine Perraut, Reinhard Genzel, N. M. Förster Schreiber, Wolfgang Brandner, Matthew Horrobin, Julia Stadler, Thomas Ott, Idel Waisberg, A. Drescher, S. von Fellenberg, Sebastian Rabien, Ekkehard Wieprecht, F. Vincent, Pierre Kervella, Jean-Philippe Berger, Odele Straub, Dieter Lutz, J.-B. Le Bouquin, Sylvestre Lacour, Silvia Scheithauer, Y. Dallilar, Andreas Kaufer, Frank Eisenhauer, Pierre Léna, Erich Wiezorrek, Roberto Abuter
Publikováno v:
Astron.Astrophys.
Astron.Astrophys., 2021, 645, pp.A127. ⟨10.1051/0004-6361/202039544⟩
Astronomy and Astrophysics, 645, 1-10
Astron.Astrophys., 2021, 645, pp.A127. ⟨10.1051/0004-6361/202039544⟩
Astronomy and Astrophysics, 645, 1-10
International audience; The spin of the supermassive black hole that resides at the Galactic Center can, in principle, be measured by accurate measurements of the orbits of stars that are much closer to Sgr A* than S2, the orbit of which recently pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15af2614a73b2322746873c993267b30
https://doi.org/10.1051/0004-6361/202039544
https://doi.org/10.1051/0004-6361/202039544
Autor:
Feng Gao, P. T. de Zeeuw, Julia Stadler, Maryam Habibi, Y. Dallilar, M. Bauböck, A. Jiménez-Rosales, Jason Dexter, T. Ott, Frank Eisenhauer, Alexander Tchekhovskoy, Reinhard Genzel, A. Drescher, S. von Fellenberg, Felix Widmann, Stefan Gillessen, S M Ressler, Odele Straub
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 503, 3, pp. 4563-4575
Monthly Notices of the Royal Astronomical Society, 503(3), 4563-4575
Monthly Notices of the Royal Astronomical Society, 503, 4563-4575
Monthly Notices of the Royal Astronomical Society, 503(3), 4563-4575
Monthly Notices of the Royal Astronomical Society, 503, 4563-4575
Using general relativistic magnetohydrodynamic simulations of accreting black holes, we show that a suitable subtraction of the linear polarization per pixel from total intensity images can enhance the photon ring features. We find that the photon ri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5eb77aab8b76dbeec77e28875a39b45
https://repository.ubn.ru.nl/handle/2066/233847
https://repository.ubn.ru.nl/handle/2066/233847