A huge halo of gas that surrounds the Milky Way galactic neighbor – the Andromeda Galaxy – has been mapped for the first time by NASA’s Hubble Telescope.
Yale University astronomers used instruments on Hubble to study the scale of the galactic shell and discovered that it is 1.3 million light-years longer than Andromeda.
As a result of research, astronomers now believe that Andromeda’s gas halo is ‘bumping’ into the gas halo around our own galaxy.
The Andromeda Galaxy, also known as M31, is a majestic spiral of about 1 trillion stars and is comparable in size with the Milky Way.
This is the most comprehensive study of the halo surrounding the galaxy, revealing that it consists of a single layer of gas with two main structures and distinctive shells.
At a distance of 2.5 million light-years, the majestic spiral Andromeda Galaxy is so close to us that it looks like a cigar-shaped light in the autumn sky. The purple area around it looked as if it were hollow visible to the naked eye
A team including researchers from Yale and the University of Notre Dame used instruments on the Space Telescope to investigate aerodynamic depressions in depth.
“It’s important to understand the vast amounts of gas around the galaxy,” explained Samantha Barrack, Yale’s co-investigator.
‘This reservoir of gas is the fuel for the formation of future stars inside the galaxy, as well as the flow of events such as supernovae.
‘It is full of links to the galaxy’s past and future evolution, and we have finally been able to study it in detail in our immediate galactic neighborhood.’
This illustration shows the location of the rome 43 quarts of scientists used to investigate the atmosphere of Andromeda.
According to study leader Nicholas Lehner of Notre Dame, the inner shell of half a million light years is more complex and dynamic than expected.
‘The outer shell is smooth and warm. This difference is a possible consequence of the effect of supernova activity on the galaxy disk directly affecting the inner halo. ‘
Inside the halo – cooked inside the stars and protruding into space – the signature of this activity is the discovery of a huge amount of heavy elements.
The Andromeda Galaxy is about 2.5 million light-years from the Milky Way galaxy – it closely resembles the height of a cigar-shaped light in the autumn sky.
About a billion. Andromeda is predicted to happen with our own galaxy in billions of years but the stars are very different but no one is likely to collide individually.
The resulting galaxy is named either Milcomeda or Milkdromeda.
The atmospheric halo around Andromeda is so large that it would be three times the width of a large dipper if viewed with the naked eye.
Through a program called Project AMIGA (Ionized Gas Absorption Map in Andromeda), the study examined light from 43 43 quarters.
These are the farthest, brightest cores of active galaxies powered by black holes – located far away from Andromeda.
Quasars are scattered behind the halo, allowing scientists to explore multiple regions.
This diagram shows light from a background quasar passing through a large, aerated halo around the neighboring Andromeda Galaxy (M31), as measured spectroscopically by the Hubble Space Telescope.
The team, including researchers from Yale and the University of Notre Dame, used instruments on the space telescope to investigate a wide range of aerated depots.
Lehner’s team has previously investigated the halo of Andromeda. In 2015, they discovered it was ‘huge’.
But there was little hint of its complexity; It is now mapped in more detail, which more accurately determines its size and mass.
‘Previously, in the 1 million light-years of the galaxy, there was only six quarters ખૂબ very little information, co-investigator J. Christopher Hawk explains.
‘This new program provides more information on this inner region of the halo of Andromeda.
‘It is important to examine the gas within this radius, as it represents something of a gravitational field for Andromeda.’
Because we live inside the galaxy, scientists cannot easily interpret the signature sign of our own galaxy. However, they believe that the occasions of Andromeda and the Milky Way should be very similar, as these two galaxies are identical.
“This is truly a unique experiment because with Andromeda alone we have information about its halo, not just with one or two points of view, but more than 40,” Lehner explained.
In fact, Andromeda is the only galaxy in the universe for which this experiment can now be performed, and only from Hubble.
Only with the ultraviolet-sensitive future space telescope will scientists be able to conduct such experiments on a regular basis in addition to about 30 galaxies involving a local group.
Lehner said, “So Project Amiga has also given us a glimpse of the future.
The team’s findings appear in the August 27 issue of Gust’s Astrophysical Journal.
The NASA Hubble Space Telescope is still in operation and has made more than 1.3 million observations since its mission began in 1990.
The Hubble Telescope was launched on April 24, 1990 by the Space Shuttle Discovery from the Kennedy Space Center in Florida.
It is named after the famous astronomer Edwin Hubble who was born in 1889 in Missouri.
The universe is expanding and the rate at which this happens is most famous for the reason why it is now a coin of the Hubble Constant.
The Hubble Telescope is named after the famous astronomer Edwin Hubble who was born in Missouri in 1889 (pictured).
Since its mission began in 1990, Hubble has made more than 1.3 million observations and helped publish more than 15,000 scientific papers.
It orbits the Earth in a low Earth orbit at a speed of about 17,000mph (27,300kph) at an altitude of about 340 miles itude.
Hubble has a pointing accuracy of .007 arc seconds, which Franklin d. About 200 miles (320 km) away from Roosevelt’s head is the equivalent of being able to shine a laser beam centered on a dime.
The Hubble Telescope is named after Edwin Hubble who was responsible for constantly accompanying Hubble and is one of the greatest astronomers of all time.
Hubble’s primary mirror is around 2.4 meters (7 feet, 10.5 inches) and a total length of 13.3 meters (43.5 feet) – the length of a large school bus.
Hubble’s launch and deployment in April 1990 marks the most significant breakthrough in astronomy since the Galileo telescope.
Thanks to five servicing missions and over 25 years of operation, our view of the universe and our position within it have never been the same.
.
