Radio and near-infrared composite of W49A
Three-colour composite of the central region of the star-forming region W49A, based on a radio emission map (wavelength 3.6 cm ; here rendered as red) as well as two SofI images in the Ks- (green) and J-bands (blue). The red-only features in this image represent regions of ionized hydrogen so deeply embedded in the molecular cloud that they cannot be detected in the near-infrared, while blue sources are foreground stars. The radio continuum data were taken with the Very Large Array by Chris De Pree.
Kredit:ESO
O snímku
Id: | eso0322b |
Typ: | Pozorování |
Datum zveřejnění: | 22. července 2003 |
Související články: | eso0322 |
Velikost: | 1832 x 1413 px |
O objektu
Jméno: | W49A |
Typ: | Milky Way : Nebula : Type : Star Formation |
Vzdálenost: | 35000 světelné roky |
Constellation: | Aquila |
Kategorie: | Nebulae |
Souřadnice
Position (RA): | 19 10 16.06 |
Position (Dec): | 9° 6' 12.50" |
Field of view: | 4.42 x 3.41 arcminutes |
Orientace: | Sever je 0.0° levá od svislé osy |
Barvy & filtry
Pásmo | Dalekohled |
---|---|
Infračervený J | New Technology Telescope SOFI |
Infračervený K | New Technology Telescope SOFI |
Poznámky: Red data was collected by Chris De Pree using the VLA.