Abstract
We report on the construction and testing of a vacuum-gap Fabry-Perot etalon calibrator for high precision radial velocity spectrographs. The etalon is referenced against hyper fine transitions of rubidium to provide a precise wavelength calibrator for MAROON-X, a new fiber-fed, red-optical, high-precision radial-velocity spectrograph currently under construction for one of the twin 6.5m Magellan Telescopes in Chile. We demonstrate a turnkey system, ready to be installed at any current and next generation radial velocity spectrograph that requires calibration over a wide spectral band-pass. Uncertainties in the position of one etalon line are at the 10 cm s-1 level in individual measurements taken at 4 Hz. Our long-term stability is mainly limited by aging effects of the spacer material Zerodur, which imprints a 12 cm s-1 daily drift. However, as the etalon position is traced by the rubidium reference with a precision of <3 cm s-1 for integration times longer than 10s, we can fully account for this effect at the RV data reduction level.
| Language | English |
|---|---|
| Title of host publication | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II |
| Editors | Raman Navarro, James H. Burge |
| Place of Publication | Bellingham, Washington |
| Publisher | SPIE |
| Pages | 1-9 |
| Number of pages | 9 |
| ISBN (Electronic) | 9781510602045 |
| ISBN (Print) | 9781510602038 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II - Edinburgh, United Kingdom Duration: 26 Jun 2016 → 1 Jul 2016 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | SPIE |
| Volume | 9912 |
| ISSN (Print) | 0277-786X |
| ISSN (Electronic) | 1996-756X |
Other
| Other | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II |
|---|---|
| Country | United Kingdom |
| City | Edinburgh |
| Period | 26/06/16 → 1/07/16 |
Fingerprint
Keywords
- Comb
- Echelle spectrograph
- Etalon
- Frequency standard
- Optical fibers
- Radial velocity
Cite this
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A rubidium traced white-light etalon calibrator for MAROON-X. / Stürmer, Julian; Seifahrt, Andreas; Schwab, Christian; Bean, Jacob L.
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II. ed. / Raman Navarro; James H. Burge. Bellingham, Washington : SPIE, 2016. p. 1-9 991229 (Proceedings of SPIE; Vol. 9912).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › Research › peer-review
TY - GEN
T1 - A rubidium traced white-light etalon calibrator for MAROON-X
AU - Stürmer, Julian
AU - Seifahrt, Andreas
AU - Schwab, Christian
AU - Bean, Jacob L.
PY - 2016
Y1 - 2016
N2 - We report on the construction and testing of a vacuum-gap Fabry-Perot etalon calibrator for high precision radial velocity spectrographs. The etalon is referenced against hyper fine transitions of rubidium to provide a precise wavelength calibrator for MAROON-X, a new fiber-fed, red-optical, high-precision radial-velocity spectrograph currently under construction for one of the twin 6.5m Magellan Telescopes in Chile. We demonstrate a turnkey system, ready to be installed at any current and next generation radial velocity spectrograph that requires calibration over a wide spectral band-pass. Uncertainties in the position of one etalon line are at the 10 cm s-1 level in individual measurements taken at 4 Hz. Our long-term stability is mainly limited by aging effects of the spacer material Zerodur, which imprints a 12 cm s-1 daily drift. However, as the etalon position is traced by the rubidium reference with a precision of <3 cm s-1 for integration times longer than 10s, we can fully account for this effect at the RV data reduction level.
AB - We report on the construction and testing of a vacuum-gap Fabry-Perot etalon calibrator for high precision radial velocity spectrographs. The etalon is referenced against hyper fine transitions of rubidium to provide a precise wavelength calibrator for MAROON-X, a new fiber-fed, red-optical, high-precision radial-velocity spectrograph currently under construction for one of the twin 6.5m Magellan Telescopes in Chile. We demonstrate a turnkey system, ready to be installed at any current and next generation radial velocity spectrograph that requires calibration over a wide spectral band-pass. Uncertainties in the position of one etalon line are at the 10 cm s-1 level in individual measurements taken at 4 Hz. Our long-term stability is mainly limited by aging effects of the spacer material Zerodur, which imprints a 12 cm s-1 daily drift. However, as the etalon position is traced by the rubidium reference with a precision of <3 cm s-1 for integration times longer than 10s, we can fully account for this effect at the RV data reduction level.
KW - Comb
KW - Echelle spectrograph
KW - Etalon
KW - Frequency standard
KW - Optical fibers
KW - Radial velocity
UR - http://www.scopus.com/inward/record.url?scp=84996931147&partnerID=8YFLogxK
U2 - 10.1117/12.2232865
DO - 10.1117/12.2232865
M3 - Conference proceeding contribution
SN - 9781510602038
T3 - Proceedings of SPIE
SP - 1
EP - 9
BT - Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
A2 - Navarro, Raman
A2 - Burge, James H.
PB - SPIE
CY - Bellingham, Washington
ER -