NGC 5253
Pseudo-color image of dwarf galaxy NGC 5253. Blue channel: Hubble Space Telescope image, in optical light; red: infrared image from the Keck Telescope. The gas cloud (nebula) associated with the wind bubble is the brightest infrared source, the topmost bright knot. HST image courtesy of Daniela Calzetti (STScI).
Infrared image of super star clusters in NGC 5253 made with the Keck
Telescope. Wind bubble cloud/nebula is the topmost bright knot.
| Size | 15kly |
| Distance | 12Mly |
| Type | Irregular(Irr) |
| Constellation | Centaurus |
| Equatorial Coordinates |
RA
Dec
13 39.9 -31 39 |
| Description |
(1). Supersonic motions have been detected in the nebula surrounding of this super star cluster. (2). A very high wind speeds(over 3000miles/minutes) has been detected in the hydrogen gas. (3). The star cluster -- estimated to contain a million young stars -- is so young, in astronomical terms, that it is still hidden from optical view by a hot and glowing cloud of gas and dust. (4). These luminous young stars drive winds by the sheer force of their radiation pressure, and their winds combine to drive the wind bubble. (5). The effects of these luminous young clusters on galaxies are still unknown. ¡@ |
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