GRAVITY+ Wide: towards hundreds of z ~ 2 AGN

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 Garcia; Sebastian Hönig; 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

doi:10.1117/12.2628921

26 August 2022 GRAVITY+ Wide: towards hundreds of z ~ 2 AGN

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 Garcia, Sebastian Hönig, 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

Author Affiliations +

Proceedings Volume 12183, Optical and Infrared Interferometry and Imaging VIII; 121830T (2022) https://doi.org/10.1117/12.2628921
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

As part of the GRAVITY⁺ project, the near-infrared beam combiner GRAVITY and the VLTI are currently undergoing a series of significant upgrades to further improve the performance and sky coverage. The instrumental changes will be transformational, and for instance uniquely position GRAVITY to observe the broad line region of hundreds of Active Galactic Nuclei (AGN) at a redshift of two and higher. The increased sky coverage is achieved by enlarging the maximum angular separation between the celestial science object (SC) and the off-axis fringe tracking (FT) star from currently 2 arcseconds (arcsec) up to unprecedented 30 arcsec, limited by the atmospheric conditions. This was successfully demonstrated at the VLTI for the first time.

Conference Presentation

Citation Download Citation

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 Garcia, Sebastian Hönig, 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, and Senol Yazici "GRAVITY+ Wide: towards hundreds of z ~ 2 AGN", Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 121830T (26 August 2022); https://doi.org/10.1117/12.2628921

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