| 31 | | || '''11.10.2019[[BR]](11hrs, MPIA Hoersaal)''' || '''Jonathan Crass [[BR]](University of Notre Dame, USA)''' || '''Finding Earth-like planets among the noise - [[BR]]Achieving precision radial velocity measurements with single-mode fibres'''[[BR]][[BR]]Today's radial velocity (RV) instruments for planet detection are primarily seeing-limited instruments fed using multi-mode fibres. This design, while previously state-of-the art, leads to systematic errors which is beginning to limit our ability to study some of the most challenging, and consequently most interesting planetary systems. In the era of adaptive optics at large telescope facilities worldwide, it is now possible to inject a diffraction-limited input into single-mode optical fibres to feed next generation RV spectrographs. These have a reduced instrument volume, a stable input source, and can offer improved overall stability and precision for RV over their multi-mode fed counterparts.[[BR]][[BR]]iLocater is a next-generation precision RV spectrograph under development for the Large Binocular Telescope (LBT). It is one of the first astronomical spectrographs to use single-mode fibres for precision radial velocity measurement and will provide high resolution (R~150,000-240,000) NIR spectra in a stable environment. Jonathan Crass will present an overview of the instrument, its current status and novel science programs.[[BR]][[BR]]Presentation: English[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2019S1/2019-10-11_ILocatorSpec.pdf Slides: English] [[BR]]Questions: German, English || |
| | 31 | || '''11.10.2019[[BR]](11hrs, MPIA Hoersaal)''' || '''Jonathan Crass [[BR]](University of Notre Dame, USA)''' || '''Finding Earth-like planets among the noise - [[BR]]Achieving precision radial velocity measurements with single-mode fibres'''[[BR]][[BR]]Today's radial velocity (RV) instruments for planet detection are primarily seeing-limited instruments fed using multi-mode fibres. This design, while previously state-of-the art, leads to systematic errors which is beginning to limit our ability to study some of the most challenging, and consequently most interesting planetary systems. In the era of adaptive optics at large telescope facilities worldwide, it is now possible to inject a diffraction-limited input into single-mode optical fibres to feed next generation RV spectrographs. These have a reduced instrument volume, a stable input source, and can offer improved overall stability and precision for RV over their multi-mode fed counterparts.[[BR]][[BR]]iLocater is a next-generation precision RV spectrograph under development for the Large Binocular Telescope (LBT). It is one of the first astronomical spectrographs to use single-mode fibres for precision radial velocity measurement and will provide high resolution (R~150,000-240,000) NIR spectra in a stable environment. Jonathan Crass will present an overview of the instrument, its current status and novel science programs.[[BR]][[BR]]Presentation: English[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2019S2/2019-10-11_iLocator.pdf Slides: English] [[BR]]Questions: German, English || |
