These two images show tacked Chandra images for two different classes of distant, massive galaxy detected with NASA Spitzer. Image stacking is a procedure used to detect emission from objects that is too faint to be detected in single images.
These two images show tacked Chandra images for two different classes of distant, massive galaxy detected with NASA Spitzer. Image stacking is a procedure used to detect emission from objects that is too faint to be detected in single images.