Approaching cm/sec calibration of high resolution astronomical spectrograph

Author

Manescau, A. ; Curto, G. Lo ; Pasquini, L. ; Gonzalez Hernandez, J.I. ; Rebolo, R. ; Steinmetz, T. ; Probst, R. ; Holzwarth, R. ; Wilken, T. ; Hänsch, T.W. ; Udem, Th

Author_Institution

Eur. Southern Obs., Garching, Germany

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

Radial Velocity measurements have demonstrated to be the most successful way of finding extra solar planets; this technique has reported the larger quantity of exoplanet so far detected. Finding Earth like type exoplanets demands a cm/sec reproducible spectrograph calibration. A Laser Frequency Comb (LFC) calibration system has been developed and tested in several occasions with the HARPS spectrograph at the 3.6m telescope on La Silla ESO Observatory since January 2009. The LFC shows a number of advantages compared to other traditional calibration sources.

Keywords

astronomical telescopes; calibration; extrasolar planets; HARPS spectrograph; LFC calibration system; La Silla ESO Observatory; Laser Frequency Comb; exoplanet quantity; extra solar planets; high resolution astronomical spectrograph; radial velocity measurements; reproducible spectrograph calibration; traditional calibration sources; Extraterrestrial measurements; Instruments;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5943674

Filename

5943674