The current view state that the universe is filled with mystical benighted matter and dark energy . model using them make accurate predictions of the state of the universe of discourse , although they are not perfect . For example , they propose the presence of a bombastic telephone number of dwarf galaxies out there , but when we look out into the sky , we find a much smaller amount .
This " midget wandflower trouble " has been a thorn in the side of the cosmological example for years , but new enquiry published inNature Astronomyhas found evidence that may work the conundrum . It appears that dwarf galaxies form groups independent of big galaxies and these groups are likely to merge into a individual medium galaxy within 1 billion years . That ’s why we ca n’t seem to see them anymore .
The international team of astronomer has get word seven isolated gnome coltsfoot groups , with each host three to five members . These were part of theTiNy Titans(TNT ) survey that ’s enquire how gnome extragalactic nebula interact with each other .
The TNT dwarf groups allow the researchers to await into how structures spring at the modest - lot end of cosmic structures . The researchers desire to spot tendril of gas stretching within the chemical group to rise that most of these dwarf galaxy are interacting .
The objects are between 10 to 1,000 times smaller than our own milklike Way and are located between 200 and 650 million promiscuous - years from us . This is very airless in cosmic terms , but too faint for us to observe further groups yet .
Upcoming lookout station like theLarge Synoptic Survey Telescopeand theJames Webb Space Telescopeplan to observe further and dimmer objects . This will be a crucial test for these systems . stargazer think that midget galaxy groups were vernacular in the early universe , but became rare and rarer due to merging .
This is all , of form , on the assumption that dark subject sincerely be . On cosmic scales , the properties of dark issue have been extensively tested and there is a pretty compelling argument . While we know what it does , we are yet to find oneself evidence of what dark matter actually is , so the field is quite open . But if issues like the midget galaxy problem can be explained , alternate hypotheses will have a tough instance to fight .
