Orión cuida de ALMA

Brillando en lo alto del cielo nocturno chileno, Orión, El Cazador, permanece atento, vigilando las antenas de ALMA (Atacama Large Millimeter/submillimeter Array). Es muy fácil reconocer esta constelación, con su distintiva forma de reloj de arena y las tres brillantes estrellas del cinturón de Orión en el centro. Obtenida desde el hemisferio sur, esta imagen nos muestra la espada de Orión sobre el cinturón. La espada alberga una de los fenómenos más impresionantes del cielo — la Nebulosa de Orión — que aparece como la “estrella” central de la espada, con una nebulosidad difusa que la hace visible a simple vista bajo buenas condiciones meteorológicas.

Las tres antenas de ALMA que se ven en la imagen representan solo una pequeña parte del conjunto total, que cuenta con un total de 66 antenas. ALMA combina las señales de sus antenas, separadas por distancias de más de 16 kilómetros, para formar un telescopio unitario gigantesco, utilizando una técnica denominada interferometría. Pese a que la construcción no se completará hasta el año 2013, ALMA comenzó a hacer observaciones científicas con parte de sus antenas en el año 2011.

A 5.000 metros de altitud, en el Llano de Chajnantor, a los pies de los Andes chilenos, en una de las regiones más áridas del mundo, ALMA cuenta con unas excepcionales condiciones de observación. Para llevar a cabo las observaciones es necesario un lugar como Chajnantor, alto y seco, ya que el vapor de agua y el oxígeno de la atmósfera terrestre  absorben las longitudes de onda milimétricas y submilimétricas de la luz, el rango para el cual está diseñado ALMA.

En esta fotografía, las antenas se estaban probando en las instalaciones de apoyo a las operaciones de ALMA (Operations Support Facility) ubicadas a una altitud algo más baja, a 2.900 metros. Una vez probadas y totalmente equipadas, fueron transportadas al Llano de Chajnantor para iniciar su trabajo.

Esta imagen fue obtenida por Adrian Russell, quien envió la fotografía al grupo de Flickr “Your ESO Pictures”. El grupo Flickr se revisa regularmente y se seleccionan las mejores fotos para ser las protagonistas de la serie “La imagen de la semana”, o para incorporarlas a la galería de imágenes. En 2012, como parte de las celebraciones con motivo del 50 aniversario de ESO, también pueden participar imágenes relacionadas con la historia de ESO.

ALMA (Atacama Large Millimeter/submillimeter Array) es una instalación astronómica internacional fruto de la colaboración entre Europa, América del Norte y Asia Oriental,  en cooperación con la República de Chile. La construcción y operaciones de ALMA en Europa están lideradas por ESO; en América del Norte por el National Radio Astronomy Observatory (NRAO); y en Asia Oriental por el Observatorio Astronómico Nacional de Japón (NAOJ). El Joint ALMA Observatory (JAO) proporciona al proyecto la unificación tanto del liderazgo como de la gestión de la construcción, puesta a punto y operación de ALMA.

 

Enlaces

Crédito:

ESO/A. Russell

Sobre la imagen

Identificador:potw1233a
Idioma:es
Tipo:Fotográfico
Fecha de publicación:13 de Agosto de 2012 a las 10:00
Tamaño:4288 x 2848 px

Sobre el objeto

Nombre:Atacama Large Millimeter/submillimeter Array
Tipo:Unspecified : Sky Phenomenon : Night Sky
Unspecified : Technology : Observatory : Telescope

Formatos de imagen

JPEG grande
965,7 KB

Zoom


Fondo de pantalla

1024x768
139,2 KB
1280x1024
186,3 KB
1600x1200
251,2 KB
1920x1200
295,4 KB
2048x1536
351,4 KB

Envíenos sus comentarios
Suscríbete para recibir noticias de ESO en tu idioma
Acelerado por CDN77
Términos y Condiciones
Cookie Settings and Policy

Our use of Cookies

We use cookies that are essential for accessing our websites and using our services. We also use cookies to analyse, measure and improve our websites’ performance, to enable content sharing via social media and to display media content hosted on third-party platforms.

You can manage your cookie preferences and find out more by visiting 'Cookie Settings and Policy'.

ESO Cookies Policy


The European Organisation for Astronomical Research in the Southern Hemisphere (ESO) is the pre-eminent intergovernmental science and technology organisation in astronomy. It carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities for astronomy.

This Cookies Policy is intended to provide clarity by outlining the cookies used on the ESO public websites, their functions, the options you have for controlling them, and the ways you can contact us for additional details.

What are cookies?

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials and preferences and enhance your browsing experience.

Categories of cookies we use

Essential cookies (always active): These cookies are strictly necessary for the proper functioning of our website. Without these cookies, the website cannot operate correctly, and certain services, such as logging in or accessing secure areas, may not be available; because they are essential for the website’s operation, they cannot be disabled.

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
csrftoken
XSRF protection token. We use this cookie to protect against cross-site request forgery attacks.
1st party
Stored
1 year
user_privacy
Your privacy choices. We use this cookie to save your privacy preferences.
1st party
Stored
6 months
_grecaptcha
We use reCAPTCHA to protect our forms against spam and abuse. reCAPTCHA sets a necessary cookie when executed for the purpose of providing its risk analysis. We use www.recaptcha.net instead of www.google.com in order to avoid unnecessary cookies from Google.
3rd party
Stored
6 months

Functional Cookies: These cookies enhance your browsing experience by enabling additional features and personalization, such as remembering your preferences and settings. While not strictly necessary for the website to function, they improve usability and convenience; these cookies are only placed if you provide your consent.

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
Settings
preferred_language
Language settings. We use this cookie to remember your preferred language settings.
1st party
Stored
1 year
ON | OFF
sessionid
ESO Shop. We use this cookie to store your session information on the ESO Shop. This is just an identifier which is used on the server in order to allow you to purchase items in our shop.
1st party
Stored
2 weeks
ON | OFF

Analytics cookies: These cookies collect information about how visitors interact with our website, such as which pages are visited most often and how users navigate the site. This data helps us improve website performance, optimize content, and enhance the user experience; these cookies are only placed if you provide your consent. We use the following analytics cookies.

Matomo Cookies:

This website uses Matomo (formerly Piwik), an open source software which enables the statistical analysis of website visits. Matomo uses cookies (text files) which are saved on your computer and which allow us to analyze how you use our website. The website user information generated by the cookies will only be saved on the servers of our IT Department. We use this information to analyze www.eso.org visits and to prepare reports on website activities. These data will not be disclosed to third parties.

On behalf of ESO, Matomo will use this information for the purpose of evaluating your use of the website, compiling reports on website activity and providing other services relating to website activity and internet usage.

ON | OFF

Matomo cookies settings:

Cookie ID/Name
Description/Purpose
Provider (1st party or 3rd party)
Browser session cookie or Stored cookie?
Duration
Settings
_pk_id
Stores a unique visitor ID.
1st party
Stored
13 months
_pk_ses
Session cookie temporarily stores data for the visit.
1st party
Stored
30 minutes
_pk_ref
Stores attribution information (the referrer that brought the visitor to the website).
1st party
Stored
6 months
_pk_testcookie
Temporary cookie to check if a visitor’s browser supports cookies (set in Internet Explorer only).
1st party
Stored
Temporary cookie that expires almost immediately after being set.

Additional Third-party cookies on ESO websites: some of our pages display content from external providers, e.g. YouTube.

Such third-party services are outside of ESO control and may, at any time, change their terms of service, use of cookies, etc.

YouTube: Some videos on the ESO website are embedded from ESO’s official YouTube channel. We have enabled YouTube’s privacy-enhanced mode, meaning that no cookies are set unless the user actively clicks on the video to play it. Additionally, in this mode, YouTube does not store any personally identifiable cookie data for embedded video playbacks. For more details, please refer to YouTube’s embedding videos information page.

Cookies can also be classified based on the following elements.

Regarding the domain, there are:

As for their duration, cookies can be:

How to manage cookies

Cookie settings: You can modify your cookie choices for the ESO webpages at any time by clicking on the link Cookie settings at the bottom of any page.

In your browser: If you wish to delete cookies or instruct your browser to delete or block cookies by default, please visit the help pages of your browser:

Please be aware that if you delete or decline cookies, certain functionalities of our website may be not be available and your browsing experience may be affected.

You can set most browsers to prevent any cookies being placed on your device, but you may then have to manually adjust some preferences every time you visit a site/page. And some services and functionalities may not work properly at all (e.g. profile logging-in, shop check out).

Updates to the ESO Cookies Policy

The ESO Cookies Policy may be subject to future updates, which will be made available on this page.

Additional information

For any queries related to cookies, please contact: pdprATesoDOTorg.

As ESO public webpages are managed by our Department of Communication, your questions will be dealt with the support of the said Department.