Abstract
We 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 430670 nm with minimum order separation of similar to 180 mu m. 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.
| Language | English |
|---|---|
| Title of host publication | Ground-based and airborne instrumentation for astronomy V |
| Editors | Suzanne K. Ramsay, Ian S. McLean, Hideki Takami |
| Place of Publication | Washington, DC |
| Publisher | SPIE |
| Pages | 91477I-1-91477I-12 |
| Number of pages | 12 |
| ISBN (Electronic) | 9780819496157 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | 5th Conference on Ground-Based and Airborne Instrumentation for Astronomy - Montreal, Canada Duration: 22 Jun 2014 → 26 Jun 2014 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | SPIE-INT SOC OPTICAL ENGINEERING |
| Volume | 9147 |
| ISSN (Print) | 0277-786X |
Conference
| Conference | 5th Conference on Ground-Based and Airborne Instrumentation for Astronomy |
|---|---|
| Country | Canada |
| City | Montreal |
| Period | 22/06/14 → 26/06/14 |
Keywords
- single-mode spectrograph
- high-resolution
- vacuum chamber
- exoplanets
- asteroseismology
- NOISE
Cite this
}
RHEA : the ultra-compact Replicable High-resolution Exoplanet and Asteroseismology spectrograph. / Feger, Tobias; Bacigalupo, Carlos; Bedding, Timothy R.; Bento, Joao; Coutts, David; Ireland, Michael; Parker, Quentin; Rizzuto, Aaron; Spaleniak, Izabela.
Ground-based and airborne instrumentation for astronomy V. ed. / Suzanne K. Ramsay; Ian S. McLean; Hideki Takami. Washington, DC : SPIE, 2014. p. 91477I-1-91477I-12 91477I (Proceedings of SPIE; Vol. 9147).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › Research › peer-review
TY - GEN
T1 - RHEA
T2 - the ultra-compact Replicable High-resolution Exoplanet and Asteroseismology spectrograph
AU - Feger, Tobias
AU - Bacigalupo, Carlos
AU - Bedding, Timothy R.
AU - Bento, Joao
AU - Coutts, David
AU - Ireland, Michael
AU - Parker, Quentin
AU - Rizzuto, Aaron
AU - Spaleniak, Izabela
PY - 2014
Y1 - 2014
N2 - We 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 430670 nm with minimum order separation of similar to 180 mu m. 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.
AB - We 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 430670 nm with minimum order separation of similar to 180 mu m. 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.
KW - single-mode spectrograph
KW - high-resolution
KW - vacuum chamber
KW - exoplanets
KW - asteroseismology
KW - NOISE
U2 - 10.1117/12.2055600
DO - 10.1117/12.2055600
M3 - Conference proceeding contribution
T3 - Proceedings of SPIE
SP - 91477I-1-91477I-12
BT - Ground-based and airborne instrumentation for astronomy V
A2 - Ramsay, Suzanne K.
A2 - McLean, Ian S.
A2 - Takami, Hideki
PB - SPIE
CY - Washington, DC
ER -