[1][2] Between the HSTs' main observations, there is a short time that objects within that field of view can be imaged using gaps which last approximately 12 - 25 mins.
[3] The Zoogems project sought to use those small observation gaps to image 300 candidates taken from the two Zoos in order to better study and comprehend them.
[2] GZ is an ongoing crowdsourced astronomy project which invites people to assist in the morphological classification of a large number of galaxies.
[1] Project lead Dr. William Keel said in an interview on the University of Alabama site that Zoogems addressed a range of studies and that this happens rarely with galaxies.
[1] A range of software is used to calculate where the target's image is captured on the available ACS CCDs, using a coordinate offset within a 'circle of interest' to find the most useful coverage.
[1] A different strategy for Green Pea systems uses a choice of four filters allotted using distance values so as to study the continuum structure.
[1] The first Zoogems study to be published in May 2021 was "An Old Stellar Population or Diffuse Nebular Continuum Emission Discovered in Green Pea Galaxies" which concentrated on 9 of them.
The mix of old and new stars within Pea galaxies could create different gravitational conditions which might influence galactic winds and element retention.
[8] Using images taken as part of Zoogems, they analyse a sample of radio galaxies which have extended double-lobed structures and see whether they can be associated with their disk-like optical objects.
"[9] Samantha Brunker, a scientist studying Green Pea galaxies, said that the variety of unusual targets included in ZooGems is special.
[13] The HST image of CGCG 396-2 shows an uncommon multi-armed merger 520 million light years from earth.