SINFONI observations of the young starforming galaxies BX 404/405
The distant galaxy pair BX 404/405, as recorded in the K-band (wavelength 2 µm, centered on the redshifted H-alpha line), without AO-correction because of the lack of a nearby, sufficiently bright "guide" star. The width of each slitlet was 0.25 arcsec and the seeing about 0.6 arcsec. The integration time on the galaxy was 2 hours "on-source". The image shown has been reconstructed by combining all of the spectral elements around the H-alpha spectral line. The spectrum of BX 405 (upper right) clearly reveals signs of a velocity shear while that of BX 404 does not. This may be a sign of rotation, a possible signature of a young disc in this galaxy.
Källa:ESO
Om bilden
ID: | eso0426o |
Typ: | Observation |
Publiceringsdatum: | 24 augusti 2004 |
Relaterade pressmeddelanden: | eso0426 |
Storlek: | 935 x 599 px |
Om objektet
Namn: | BX 404/405 |
Typ: | Early Universe : Galaxy |
Kategori: | Galaxies |
Färger och filter
Band | Våglängd | Teleskop |
---|---|---|
Infrarött K | 2.0 μm | Very Large Telescope SINFONI |