Astronomers who use the X-Ray Chandra NASA Observatory have found evidence for the possibility of a planetary candidate at M51 – “Whirlpool” – Galaxy, and said it could potentially represent what would be the first planet to be seen for transit stars outside the Milky Way.
The researchers used the Chandra X-Ray Observatory to detect X-ray dimming from “X-ray binary”, a system where stars like the Sun are in orbit around neutron stars or black holes.
The authors interpret this dimming as planets passing in front of neutron stars or black holes, an official reading statement.
“Looking for the dimming of starlight because something passed in front of him is called transit technique.
Over the years, scientists have found exoplanets using transit with optical light telescopes, which detect the range of young people can see with their eyes and more.
These include telescopes based land and space-based like Kepler NASA mission.
This optical light transit detection requires a very high level of sensitivity because the planet is much smaller than the star skipped in front, and, therefore, only a small portion of the light is blocked, “Note Round.
The transit scenario in binary x-ray is different, astronomers said.
And that is because the potential planet is close to the X-ray source around the neutron star or black hole, a transit planet that passes through the landing line can temporarily block most or all X-rays.
“It makes it possible to find transit at a distant distance – including surpassing the Milky Way – rather than the optical light study currently uses transit,” the note sounded.
The researchers also released graphics and illustrations.
The left panel chart (see picture) shows M51 in X-rays from Chandra (purple and blue) and optical light from the Hubble NASA room telescope (red, green and blue).
A box marks the location of possible planet candidates, X-ray binary known as M51-ULS-1.
The illustration of artists in the right panel describes binary x-rays and possible planets.
The material from the star of the companion (white and blue in illustration) is drawn to neutron stars or black holes, forming disks around solid objects (illustrated as red and orange).
The material near solid objects becomes very hot, causing it to shine in the light of x-ray (white).
The planet is displayed starting through this X-ray source.
A separate graph shows how X-rays of M51-ULS-1 are reduced while zero during Chandra’s observation.
“Even though this is a tempting study, the exoplanet case at M51 is not IronCLAD.
One of the challenges is that the large orbit of the Planet candidate in the M51-ULS-1 means it will not cross in front of the binary partner again for around 70 years, thwarting all efforts for observations Confirm for decades.
There is also the possibility that X-ray dimming is caused by a cloud of gas that passes near M51-ULS-1, even though the researchers think the data is very supportive of the planet’s explanment, “the note sounded.
The paper that describes these results emerged in the latest edition of natural astronomy.
The authors are Rosanne Distefano (CFA), Julia Berndtsson (Princeton), Ryan Urquhart (Michigan State University), Roberto Soria (University of Academy of China), Vinay Kashap (CFA), Theron Carmichael (CFA), and Nia Imara (now on University of California in Santa Cruz).
“Marshall NASA’s spaceship center manages the Chandra program.
Chandra X-Ray Center Ambi Smithsonia mastered the observation science of Cambridge Massachusetts and flight operations from Burlington, Massachusetts,” added the note.