File:Taste of ESPRESSO.jpg

Original file (4,000 × 2,667 pixels, file size: 3.94 MB, MIME type: image/jpeg)

Captions

English

Add a one-line explanation of what this file represents

Summary

DescriptionTaste of ESPRESSO.jpg	English: The huge diffraction grating at the heart of the ultra-precise ESPRESSO spectrograph is pictured undergoing testing in the cleanroom at ESO Headquarters in Garching bei München, Germany. Русский: На снимке – тестирование гигантской дифракционной решетки в стерильном цехе штаб-квартиры ESO (Гархинг близ Мюнхена, Германия). Эта решетка – главный элемент сверхточного спектрографа ESPRESSO.
Date	14 September 2015, 10:00:00
Source	ESO website
Author	ESO/M. Zamani

Licensing

This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.

This file is licensed under the Creative Commons Attribution 4.0 International license.

You are free:

to share – to copy, distribute and transmit the work
to remix – to adapt the work

Under the following conditions:

attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:55, 29 September 2015		4,000 × 2,667 (3.94 MB)	Artem Korzhimanov (talk \| contribs)	User created page with UploadWizard

You cannot overwrite this file.

File usage on Commons

There are no pages that use this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Credit/Provider	ESO/M. Zamani
Source	European Southern Observatory
Short title	A Taste of ESPRESSO
Image title	The huge diffraction grating at the heart of the ultra-precise ESPRESSO spectrograph — the next generation in exoplanet detection technology — is pictured undergoing testing in the cleanroom at ESO Headquarters in Garching bei München, Germany. Engineers at ESO have recently completed the difficult process of aligning the grating. The production and alignment of this component is one of the key ESO contributions to the ESPRESSO project. The grating is the largest ever assembled at ESO, and its length matches the largest echelle grating ever made — the 1.2 x 0.3 metre grating for the HIRES spectrograph at the Keck 10-metre telescope. After its final alignment, the grating is fixed in a permanent mount. All its components are made of Zerodur (the same material that is used for the mirrors of the VLT) and will require no further adjustments, ever. This mounting technique was pioneered at ESO, and demonstrated to work on earlier instruments. When installed at ESO’s Paranal Observatory in Chile in 2016, ESPRESSO will combine the light from all four Unit Telescopes of the Very Large Telescope to create a virtual 16-metre aperture telescope. Its diffraction grating will split up the light into its component colours for analysis — spreading the light as a prism does, although relying on a different physical mechanism. The successor of HARPS — the world’s foremost exoplanet hunter — ESPRESSO will take the search for exoplanets to the next level, allowing astronomers to search for Earth-like planets around nearby stars in the habitable zone [1]. It will have many other science applications, including the search for possible variations in the constants of nature at different times in the life of the Universe, and in different directions, through the study of light from very distant quasars. Notes [1] A planet in orbit around a star introduces a small and regular variation in the velocity component as measured along the line of sight (known as the radial velocity) by a distant observer on Earth. This variation can be observed as a “wobble” in the spectrum of the star as the lines shift to and fro about their central position as a result of the Doppler effect. As the planet moves away from the observer, the radial velocity change induces a shift of the star’s spectrum towards longer wavelengths (a redshift) and shorter wavelengths as it moves closer (a blueshift). These tiny shifts in the position of the star’s spectrum on the detector are on the order of a few nanometers, but can nevertheless be measured with ESPRESSO and used to infer the presence of planets. More information ESPRESSO (Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations) is being developed by a consortium consisting of ESO and seven additional scientific institutes: Centro de Astrofísica da Universidade do Porto (Portugal) Faculdade de Ciências da Universidade de Lisboa, CAAUL&LOLS (Portugal) INAF–Osservatorio Astronomico di Trieste (Italy) INAF–Osservatorio Astronomico di Brera (Italy) Instituto de Astrofísica de Canarias (Spain) Physikalisches Institut der Universität Bern (Switzerland) Université de Genève (Switzerland).
Usage terms	Creative Commons Attribution 3.0 Unported license.
Date and time of data generation	10:00, 14 September 2015
Software used	Adobe Photoshop CC 2014 (Windows)
Unique ID of original document	F4F85D98AF2853D470E90D5D9022DB8D
Keywords	ESPRESSO
Contact information	http://www.eso.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4

File:Taste of ESPRESSO.jpg

Captions

Captions

Summary

Licensing

File history

File usage on Commons

Metadata

Structured data

Items portrayed in this file

depicts

copyright status

copyrighted

copyright license

Creative Commons Attribution 4.0 International

inception

14 September 2015

Navigation menu

File:Taste of ESPRESSO.jpg

Captions

Captions

Summary

Licensing

File history

File usage on Commons

Metadata

Navigation menu

Search