WAVELENGTH STANDARDS

Development of new wavelength standards for the search for habitable planets

 Coordinatore GEORG-AUGUST-UNIVERSITAET GOETTINGEN STIFTUNG OEFFENTLICHEN RECHTS 

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 Nazionalità Coordinatore Germany [DE]
 Totale costo 1˙437˙200 €
 EC contributo 1˙437˙200 €
 Programma FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call ERC-2011-StG_20101014
 Funding Scheme ERC-SG
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-01-01   -   2016-12-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    GEORG-AUGUST-UNIVERSITAET GOETTINGEN STIFTUNG OEFFENTLICHEN RECHTS

 Organization address address: WILHELMSPLATZ 1
city: GOTTINGEN
postcode: 37073

contact info
Titolo: Dr.
Nome: Ansgar
Cognome: Reiners
Email: send email
Telefono: +49 5513913825
Fax: +49 551395043

DE (GOTTINGEN) hostInstitution 1˙437˙200.00
2    GEORG-AUGUST-UNIVERSITAET GOETTINGEN STIFTUNG OEFFENTLICHEN RECHTS

 Organization address address: WILHELMSPLATZ 1
city: GOTTINGEN
postcode: 37073

contact info
Titolo: Ms.
Nome: Nadja
Cognome: Daghbouche
Email: send email
Telefono: +49 551 393058
Fax: +49 551 39183058

DE (GOTTINGEN) hostInstitution 1˙437˙200.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

nir       calibration    programs    wavelengths    spectrographs    wavelength    earth    exo    lamps    planets    stars    discover    planetary    mass    precision    sources    laser    lfc    habitable    promising    characterization    mechanism   

 Obiettivo del progetto (Objective)

'The search for extrasolar planets is moving into the domain of Earth-like, habitable planets with more precise measurement techniques and a focus on low-mass, very cool stars. New spectrographs are being developed with the goal to find Earth-like planets in the habitable zones of stars other than the Sun. Extensive photometric programs, both ground- and space-based are running and being planned to discover transiting planets particularly useful for detailed investigation of exo-planetary atmospheres. For the characterization of exo-planets, and to confirm the planetary status of transit candidates, high-precision radial velocity measurements (m/s) are required, in particular at near-infrared (NIR) wavelengths to discover Earth-like planets around low-mass stars. The largest obstacle for NIR programs is currently the lack of reliable wavelength standards. Potential calibration sources include absorption cells, gas emission lamps, and Fabry-Perot (FP) etalons. In most cases, detailed NIR characterization is still lacking. A very promising source is the Laser frequency comb (LFC), but the LFC signal paradoxically needs to be degenerated to be useful for astronomical spectrographs because spectral line density is usually too high. It is currently not clear whether the LFC can become a viable calibration scheme, in particular for programs carried out at 4m-class telescopes. I propose to systematically investigate wavelength calibration sources with a focus on NIR wavelengths and to develop wavelength calibration sources for NIR wavelengths. The development is of fundamental nature providing new strategies for the upcoming generation of NIR high-precision spectrographs. I suggest a new mechanism in which a FP should be coupled to a double-laser PDH mechanism providing reliable wavelength reference. Calibration lamps filled with UNe or CN are promising alternative sources of calibration lines and should be studied in detail.'

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