FIES fiber injection upgrade

Julian Stürmer; Andreas Seifahrt; Christian Schwab; Davide Gandolfi; Pilar Montañes-Rodriguez; Lars Buchhave

doi:10.1117/12.2313052

6 July 2018 FIES fiber injection upgrade

Julian Stürmer, Andreas Seifahrt, Christian Schwab, Davide Gandolfi, Pilar Montañes-Rodriguez, Lars Buchhave

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107022S (2018) https://doi.org/10.1117/12.2313052
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We report on the upgrade of the fiber link of FIES, the high-resolution echelle spectrograph at the Nordic Optical Telescope (NOT). In order to improve the radial velocity (RV) stability of FIES, we replaced the circular fibers by octagonal and rectangular ones to utilize their superior scrambling performance. Two additional fibers for a planned polarimetry mode were added during the upgrade. The injection optics and the telescope front-end were also replaced. The first on-sky RV measurements indicate that the influence of guiding errors is greatly suppressed, and the overall RV precision of FIES has significantly improved.

Citation Download Citation

Julian Stürmer, Andreas Seifahrt, Christian Schwab, Davide Gandolfi, Pilar Montañes-Rodriguez, and Lars Buchhave "FIES fiber injection upgrade", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107022S (6 July 2018); https://doi.org/10.1117/12.2313052

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available