Fichier:Sig05-016.jpg

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Fichier d’origine(812 × 812 pixels, taille du fichier : 575 Kio, type MIME : image/jpeg)

Description

This image of spiral galaxy NGC 3627, also known as Messier 66, was captured by the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC).

NGC 3627 is estimated to be 30 million light-years distant and seen towards the constellation Leo. Astronomers suspect that the galaxy's distorted shape is due to its ongoing gravitational interactions with its neighbors Messier 65 and NGC 3628. NGC 3627 is another brilliant example of a barred spiral galaxy, the most common type of disk galaxy in the local Universe. Its blue core and bar-like structure illustrates a concentration of older stars. While the bar seems devoid of star formation, the bar ends are bright red and actively forming stars. A barred spiral offers an exquisite laboratory for star formation because it contains many different environments with varying levels of star-formation activity, e.g., nucleus, rings, bar, the bar ends and spiral arms.

The SINGS image is a four-channel false-color composite, where blue indicates emission at 3.6 microns, green corresponds to 4.5 microns, and red to 5.8 and 8.0 microns. The contribution from starlight (measured at 3.6 microns) in this picture has been subtracted from the 5.8 and 8 micron images to enhance the visibility of the dust features.

File info

Description

NGC 3627 (M66)

Date
Source http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=sig05-016
Auteur NASA/JPL-Caltech/R. Kennicutt (University of Arizona) and the SINGS Team
Autorisation
(Réutilisation de ce fichier)

http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml

Individual images

see http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=sig05-016 High quality tif files also avaliable.

Conditions d'utilisation

Public domain
Ce fichier provient de la NASA. Sauf exception, les documents créés par la NASA ne sont pas soumis à copyright. Pour plus d'informations, voir la politique de copyright de la NASA.
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Date et heureVignetteDimensionsUtilisateurCommentaire
actuel10 juillet 2007 à 20:47Vignette pour la version du 10 juillet 2007 à 20:47812 × 812 (575 Kio)Anzibanonzi==Summary== This image of spiral galaxy NGC 3627, also known as Messier 66, was captured by the Spitzer Infrared Nearby Galaxy Survey (SINGS) Legacy Project using the telescope's Infrared Array Camera (IRAC). NGC 3627 is estimated to be 30 million light-

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