Chandra was able to distinguish a cloud of dust "driven" by a black hole in the center of a distant galaxy NGC4151. This finding is important because it shows the effect of a massive black hole (MBL) that extends over a range of thousands of light years, i.e. to considerable parts of the galaxy
7.6.2000
By: David Issachari
Space is not silent on its own, and neither are the new sensing means that are multiplying in space.
After the "Hubble" "Galileo" and the two successful Mars missions, a new star now stars in the sky of innovations in space observations. The new "star" is Chandra, a space observatory for X-rays. For example, Chandra has now been able to notice a cloud of dust "driven" by a black hole in the center of a distant galaxy NGC4151. This finding is important because it shows the effect of a massive black hole ( Hashem) which extends to a range of thousands of light years, i.e. to considerable parts of the galaxy.
The findings were presented on Tuesday 5/6 by Dr. Patrick Ogle Hermo Marshall, Julia Lee, and Claude Canizzara from MIT at the American Astronomical Society conference. The observation also demonstrated the possibility of observing the environment of the electric shock by energy produced by the material accelerated to it.
The galaxy in question NGC4151 is 50 million light-years away from us in a southern direction from the Big Dipper group. It is a typical example of a galaxy that shows a lot of activity in its center.
This activity is now attributed to the existence of a huge star in the center of the galaxy (and because there is another possibility? DI), and which is estimated to be about 10 million times the size of the sun (only). When matter is accelerated towards the HC, it releases inexhaustible amounts of energy, mostly in the field of X-rays. Previous measurements showed that the X-ray source is also a huge cloud with a radius of about 3000 light years around the HC.
The precise mirrors on Chandra allow astronomers to perform unprecedentedly detailed simulations of the cloud at the center of the galaxy. The bright area was noticed earlier by the Hubble space telescope. The shape of the cloud confirms the hypothesis that the X-rays are concentrated by the solar system, and are illuminated only in certain quarters of the galaxy.
Using the "High Energy Transfer Grating", HETG, the researchers were able to decode the X-ray spectrum into its constituent elements. It turned out that it contains nitrogen, oxygen, neon, magnesium, aluminum, silicon and iron. Most of these elements are ionized by the X emanating from the center of the galaxy, and the researcher compares this to the "baking" of the elements by the "oven" of the HSH. This spectrum also shows that parts of this cloud are moving at an estimated speed of 800,000 miles per hour (over a million km/h).
The above simulation using HETG and a CCD spectrometer on March 5, S.Z.
