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IMAGE: An artist s impression showing the increasing effect of ram-pressure stripping in removing gas from galaxies, sending them to an early death. view more
Credit: ICRAR, NASA, ESA, the Hubble Heritage Team (STScI/AURA)
Large galaxies are known to strip the gas that occupies the space between the stars of smaller satellite galaxies.
In research published today, astronomers have discovered that these small satellite galaxies also contain less molecular gas at their centres.
Molecular gas is found in giant clouds in the centres of galaxies and is the building material for new stars. Large galaxies are therefore stealing the material that their smaller counterparts need to form new stars.
New observations of the first black hole ever detected have led astronomers to question what they know about the Universe's most mysterious objects. Published today in the journal Science, the research shows the system known as Cygnus X-1.
International Centre for Radio Astronomy Research, CC BY-ND When one of us (Ilya Mandel) started grad school at the California Institute of Technology 20 years ago, he wa
Earth s magnetic field broke down 42,000 years ago, triggering extinctions & climate crisis theprint.in - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theprint.in Daily Mail and Mail on Sunday newspapers.
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Black hole in Milky Way more massive than at first thought
An international team of renowned astrophysicists including researchers from FAU has gained new insights into Cygnus X1. The black hole and its companion star are further away from Earth and considerably more massive than previously thought. The project has also delivered new answers to the question of how black holes are formed. The findings have been published in the leading journal ‘Science’.
The first indication of something unusual was detected in 1964: two Geiger counters on board a suborbital rocket launched from New Mexico registered a strong x-ray source in our Milky Way. Eight years later, the US astronomer Tom Bolton discovered that this x-ray source was circling the star HDE 226868, a blue giant. Bolton concluded that Cygnus X-1, the name given to the invisible source, must be a black hole. Later observations proved that this assumption was in fact correct. ‘Cygnus X-1 is the first black hole ev