• Aucun résultat trouvé

laser guide star

Status of ARGOS - The Laser Guide Star System for the LBT

Status of ARGOS - The Laser Guide Star System for the LBT

... 2.1 Laser System Each of the two (SX and DX side of the LBT) laser systems [8, 9] of ARGOS comprises three 18 W pulsed lasers with beam pre-expanders and λ/2-plates used to adjust the po- larization of the ...

8

A sharp look at the gravitationally lensed quasar SDSS J0806+2006 with laser guide star adaptive optics at the VLT

A sharp look at the gravitationally lensed quasar SDSS J0806+2006 with laser guide star adaptive optics at the VLT

... before, suggesting low-amplitude microlensing-induced varia- tions. SDSS J0806+2006 is therefore a clean lens system to use either for determining of H 0 or for the study of the mass distribu- tion in the lensing galaxy, ...

4

ARGOS: the laser guide star system for the LBT

ARGOS: the laser guide star system for the LBT

... the laser guide star position as measured on sky does not reflect the atmospheric tilt properly, a separate tip-tilt sensor is ...natural guide star light is directed to the pyramid ...

12

Characterization and mitigation of Laser–Guide–Star–induced aberrations

Characterization and mitigation of Laser–Guide–Star–induced aberrations

... – a low bandwidth natural guide star (NGS) WFS in addition to the LGS WFS, – a digital high–pass filter (HPF) on the LGS WFS path. Basically, the low temporal frequencies are sensed by the NGS–WFS, while ...

7

Diverse Routing with Star SRLGs

Diverse Routing with Star SRLGs

... F IGURE 1: Example of localized risks : link l 4 shares risk r 2 , corresponding to Port 2 failure, with l 5 and l 6 , and shares risk r 4 , corresponding to a conduit cut, with links l 2 and l 3 . st-path which is a ...

5

How far is that star?

How far is that star?

... THAT STAR? Ken Tapping, 30 th August, 2016 How far away is that star? How did we determine that galaxy is a billion light years away? This process has taken us thousands of years and involves several ...

2

WDM and Directed Star Arboricity

WDM and Directed Star Arboricity

... (A(G)4A(P )) ∪ {c 1 a 1 } which spans V (D 0 ) ∪ x.  5 Complexity The digraphs with directed star arboricity 1 are the galaxies. So one can polynomially decide if dst(D) = 1. Deciding whether dst(D) = 2 or not is ...

18

WDM and Directed Star Arboricity

WDM and Directed Star Arboricity

... Now for ea h bi oloured ir uit C , we hoose an ar f C oloured 4 in order to maximizes the number of ar s hosen by two ir uits. Re olour ea h ar uv that has been hosen by two ir uits, say C 1 and C 2 , bi oloured 4 and c ...

24

A star for each season

A star for each season

... A STAR FOR EACH SEASON Ken Tapping, 8 th March, 2016 Anyone who does a little casual stargazing will have noticed that we see different stars in the sky at different ...

2

Le rock, star système et société de consommation

Le rock, star système et société de consommation

... Cette période vit naître le style « crooner », les chanteurs ayant l'habitude de se servir de mégaphone pour se faire entendre par- dessus l'orchestre, ce qui donnait des tonalités plates et douces. Avant le microphone, ...

189

Vega: the star with comets?

Vega: the star with comets?

... ¾ Precise K-band flux ratio: 1.29 ± 0.19% ¾ Properties and origin of dust grains. z Proven dynamic range capability ¾ Contrast up to 1:100 demonstrated z Perspectives[r] ...

16

Le guide Gouv-Innov : un guide pour qui ? Pour quoi faire ? Et comment s’en servir ?

Le guide Gouv-Innov : un guide pour qui ? Pour quoi faire ? Et comment s’en servir ?

... Le 22 juin, des acteurs ont présenté les expériences conduites et les résultats obtenus dans le cadre du programme Pour et Sur le Développement Régional (36 projets de recherche appliqué[r] ...

40

Du guide papier au guide en ligne : nouvelles pratiques de l'information touristique

Du guide papier au guide en ligne : nouvelles pratiques de l'information touristique

... maison qui a profité de l'opportunité offerte par le Guide du Routard, de toucher un nouveau public dans le monde du tourisme, pour ensuite agrandir encore plus son lectorat par le biais[r] ...

107

A star is born

A star is born

... What ALMA detected are jets of carbon monoxide being blasted away at between one and two million kilometres an hour and whirling clouds of material being hit by the radiation from the newborn star. This event is ...

2

Guide du déposant univOAK

Guide du déposant univOAK

... Si vous avez publié votre article dans une revue nativement en open access (par exemple une revue sur Open Edition ou PlosOne) ou si vous avez payé des APC lors de la publication, vous[r] ...

36

REScoop Action Guide

REScoop Action Guide

... Volunteers can develop a range of activities: they can contribute to finding appropriate locations for the renewable energy facilities, be in charge of the security checks of the instal[r] ...

17

The Guide Board

The Guide Board

... the Guide Board is to help with formalising the retrospective decisions that have long-term ...the Guide Board decreases the barrier to entry to take such decisions and eases their inspection and adaptation ...

8

Guide de l'inventaire topographique

Guide de l'inventaire topographique

... Lorsqu'un édifice industriel a déjà fait l'objet d'un dossier dans le cadre de l'enquête topographique, ce dernier doit être récupéré et éventuellement complét[r] ...

125

Mathis : guide technique

Mathis : guide technique

... sein d'un bâtiment,» CSTB, EN-CAPE 15.048 R - V0, 2015. [5] T. Clerc et F. Demouge, «Evaluation of the Performance of the Thermal and Aeraulic Building Simulation Software MATHIS with the BESTest Method,» CSTB, EN-CAPE ...

42

Guide Open data

Guide Open data

... Proposé par le département de l’innovation numérique du secrétariat général du ministère, ce guide est principalement destiné aux services du ministère (centraux, déconcentrés, à compétence nationale) et aux ...

32

Show all 3589 documents...

Sujets connexes