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.



Об изображении

Дата выпуска релиза [date]:24 августа 2004 г.
Связанные релизы:eso0426
Размер:935 x 599 px

Об объекте

Название:BX 404/405
Тип:Early Universe : Galaxy

Форматы изображений

Большой JPEG
104,6 КБ

Цвета и фильтры

ДиапазонДлина волныТелескоп
2.0 μmVery Large Telescope