I have recently reprocessed the Hubble Telescope data of the Heribg-Haro objects 901 and 902 in the Carina Nebula. The full frame image is on the left and then I have also posted enlarged versions which show HH 901 and HH 902 in much better detail.
The original calibrated data was downloaded from the MAST Hubble Heritage site. I combined the data using the “Hubble Pallette” where the data from the filters – 673n [SII], 657n [wide hydrogen alpha and NII] and 502n [OIII] are assigned red, green and blue respectively. The channel combination and initial histogram stretches were done in PixInsight. The final “tweaking” was done in Photshop. I found that using Photoshop’s high pass filter function in different scales was very helpful in bringing out the detail.
Herbig-Haro objects are believed to be newly born stars which eject narrow jets of partially ionized gas. The shockwaves from the gas then interacts with the interstellar medium which surrounds the star. In both instances above the stars responsible for the jets are buried in the gas and dust pillars. However, the shockwave wavefronts are clearly seen in this image.
Herbig-Haro objects have prominent emission lines in hydrogen, sulpher and oxygen which makes them easy to visualize in an image such as this which is composed of data from narrowband filters specifically designed to capture hydrogen, sulpher and oxygen emission line data.
More information on Herbig-Haro objects can be found here: https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object
The original calibrated and aligned data is available here: https://archive.stsci.edu/prepds/carina/
The images below are higher resolution versions. Click on each to see larger versions.