FRB 20240304B (NIRCam annotated image)

This image of the host galaxy of fast radio burst FRB 20240304B, captured by the James Webb Space Telescope’s Near Infrared Camera (NIRCam), shows compass arrows, scale bar, and colour key for reference.

The north and east compass arrows show the orientation of the image on the sky. Note that the relationship between north and east on the sky (as seen from below) is flipped relative to direction arrows on a map of the ground (as seen from above).

This image shows invisible near-infrared wavelengths of light that have been translated into visible-light colours. The colour key shows which NIRCam filters were used when collecting the light. The colour of each filter name is the visible light colour used to represent the infrared light that passes through that filter.

[Image description: Image titled “James Webb Space Telescope, FRB 20240304B”. A field full of small galaxies of all shapes against the blackness of space. A few bright white stars show 8 prominent diffraction spikes. A small galaxy at lower right is highlighted with a white box. A shaded triangle extends upward to the corners of a larger box showing a zoom in of the region. Two fuzzy, light blue blobs are at centre, with a larger and brighter one at top. Just above the top blob is a white crosshair showing the location where a fast radio burst was detected. At bottom right, a compass arrow shows north pointing to one o’clock and east pointing to 10 o’clock. A label at bottom says “JWST NIRCam filters” with F200W in blue and F322W in orange.]