Colección SciELO Chile

Departamento Gestión de Conocimiento, Monitoreo y Prospección
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A Swiss Watch Running on Chilean Time: A Progress Report on Two New Automated CORALIE RV Pipelines
Indexado
WoS WOS:000426381500113
DOI
Año 2012
Tipo proceedings paper

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



We present the current status of two new fully automated reduction and analysis pipelines, built for the Euler telescope and the CORALIE spectrograph. Both pipelines have been designed and built independently at the Universidad de Chile and Universidad Catolica by the two authors. Each pipeline has also been written on two different platforms, IDL and Python, and both can run fully automatically through full reduction and analysis of CORALIE datasets. The reduction goes through all standard steps from bias subtraction, flat-fielding, scattered light removal, optimal extraction and full wavelength calibration of the data using well exposed ThAr arc lamps. The reduced data are then cross-correlated with a binary template matched to the spectral type of each star and the cross-correlation functions are fit with a Gaussian to extract precision radial-velocities. For error analysis we are currently testing bootstrap, jackknifing and cross validation methods to properly determine uncertainties directly from the data. Our pipelines currently show long term stability at the 12-15m/s level, measured by observations of two known radial-velocity standard stars. In the near future we plan to get the stability down to the 5-6m/s level and also transfer these pipelines to other instruments like HARPS.

Disciplinas de Investigación



WOS
Sin Disciplinas
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 JENKINS, JAMES STEWART Hombre Universidad de Chile - Chile
2 JORDAN-COLZANI, ANDRES CRISTOBAL Hombre Pontificia Universidad Católica de Chile - Chile
3 JohnsKrull, CM -
4 Browning, MK -
5 West, AA -

Muestra la afiliación y género (detectado) para los co-autores de la publicación.

Financiamiento



Fuente
FONDECYT
BASAL CATA
Comite Mixto ESO-Gobierno de Chile
GEMINI-CONICYT FUND
MIDEPLAN ICM Nucleus
FONDAP CFA
Centro de Astrofisica FONDAP

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
JSJ acknowledges funding by Fondecyt through grant 3110004, along with partial support from Centro de Astrofisica FONDAP 15010003, the GEMINI-CONICYT FUND and from the Comite Mixto ESO-GOBIERNO DE CHILE. AJ acknowledges support from Fondecyt project 1095213, BASAL CATA PFB-06, FONDAP CFA 15010003 and MIDEPLAN ICM Nucleus P07-021-F. We would like to acknowledge the helpful discussions with members of the Geneva group, in particular Christophe Lovis, Francesco Pepe and Dominique Naef, and also the various support astronomers stationed at the Euler telescope.

Muestra la fuente de financiamiento declarada en la publicación.