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Conference Paper: RHEA: the ultra-compact replicable high-resolution exoplanet and Asteroseismology spectrograph

TitleRHEA: the ultra-compact replicable high-resolution exoplanet and Asteroseismology spectrograph
Authors
Issue Date2014
Citation
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, August 1, 2014. In Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91477I How to Cite?
AbstractWe present the opto-mechanical design and the characterization of the Replicable High-resolution Exoplanet and Asteroseismology (RHEA) spectrograph. RHEA is an ultra-compact fiber-fed echelle spectrograph designed to be used at 0.2-0.4 m class robotic telescopes where long term dedicated projects are possible. The instrument will be primarily used for radial velocity (RV) studies of low to intermediate-mass giant stars for the purpose of searching for hot Jupiters and using asteroseismology to simultaneously measure the host star parameters and de-correlate stellar pulsations. The optical design comprises a double-pass (i.e. near Littrow) configuration with prism cross-disperser and single-mode fiber (SMF) input. The spectrograph has a resolving power of R>70,000 and operates at 430-670 nm with minimum order separation of ~180 mum. This separation allows a 1x6 photonic lantern integration at a later stage which is currently under development. The current design is built with the aim of creating an inexpensive and replicable unit. The spectrograph is optimised for long-baseline RV observations through careful temperature stabilisation and simultaneous wavelength calibration. As a further improvement the echelle grating is housed in a vacuum chamber to maintain pressure stability. The performance of the current prototype is currently being tested on a 0.4 m telescope at the Macquarie University Observatory.
Persistent Identifierhttp://hdl.handle.net/10722/211240

 

DC FieldValueLanguage
dc.contributor.authorFeger, T-
dc.contributor.authorBacigalupo, C-
dc.contributor.authorBedding, TR-
dc.contributor.authorBento, J-
dc.contributor.authorCoutts, DW-
dc.contributor.authorIreland, MJ-
dc.contributor.authorParker, QA-
dc.contributor.authorRizzuto, A-
dc.contributor.authorSpaleniak, I-
dc.date.accessioned2015-07-08T03:23:33Z-
dc.date.available2015-07-08T03:23:33Z-
dc.date.issued2014-
dc.identifier.citationSociety of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, August 1, 2014. In Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91477I-
dc.identifier.urihttp://hdl.handle.net/10722/211240-
dc.description.abstractWe present the opto-mechanical design and the characterization of the Replicable High-resolution Exoplanet and Asteroseismology (RHEA) spectrograph. RHEA is an ultra-compact fiber-fed echelle spectrograph designed to be used at 0.2-0.4 m class robotic telescopes where long term dedicated projects are possible. The instrument will be primarily used for radial velocity (RV) studies of low to intermediate-mass giant stars for the purpose of searching for hot Jupiters and using asteroseismology to simultaneously measure the host star parameters and de-correlate stellar pulsations. The optical design comprises a double-pass (i.e. near Littrow) configuration with prism cross-disperser and single-mode fiber (SMF) input. The spectrograph has a resolving power of R>70,000 and operates at 430-670 nm with minimum order separation of ~180 mum. This separation allows a 1x6 photonic lantern integration at a later stage which is currently under development. The current design is built with the aim of creating an inexpensive and replicable unit. The spectrograph is optimised for long-baseline RV observations through careful temperature stabilisation and simultaneous wavelength calibration. As a further improvement the echelle grating is housed in a vacuum chamber to maintain pressure stability. The performance of the current prototype is currently being tested on a 0.4 m telescope at the Macquarie University Observatory.-
dc.languageeng-
dc.relation.ispartofSociety of Photo-Optical Instrumentation Engineers (SPIE) Conference Series-
dc.titleRHEA: the ultra-compact replicable high-resolution exoplanet and Asteroseismology spectrograph-
dc.typeConference_Paper-
dc.identifier.emailParker, QA: quentinp@hku.hk-
dc.identifier.authorityParker, QA=rp02017-
dc.identifier.doi10.1117/12.2055600-
dc.identifier.volume9147-

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