Wednesday, November 4, 2009

Extrasolar Suria




Cakera Circumstellar


Cakera habuk space around most stars. This can Habuk kerana dikesan star he used to absorb light and emit infrared radiation back as. Although particles have habuk meager jisim overall proportion of Earth, he has a surface area large enough sehinggakan he is more proportional glittering star in the center wavelength infrared.

The Hubble Space Telescope working cakera habuk monitor with NICMOSnya equipment (Near Infrared Camera and Multi-Object Spectrometer). A better image now been taken by the equipment for instance, Spitzer Space Telescope, which could see further into the infrared wavelength versus Hubble. Cakera habuk has now found in approximately 15% more than stars like the sun.

It is believed Habuk produced by perlanggaran between komek and asteroids. Radiation pressure from the star would reject far partikle habuk Interstellar keangkasa in the period of short-term period. With that, the additional pengesanan habuk new show by the new perlanggran, and provide indirect evidence of new perlanggaran, and provide indirect evidence of the presence of strong small body such as comets and asteroids around the main star.

For example, around the star cakera tau habuk pimp shows that the star has a population of objects which is like a bracelet Kuiper our Suria system, but at least ten times thicker.

More interesting, the characteristics in the presence of reserve cakera habuk full bersaiz planet. Cakera has Sesetengah cavity center, it actually means to cecincin shape.

Potentially the middle space caused by the planet "clean" excessive habuk in orbit. Other Cakera habuk contains lumps that may be caused by the influence of the planet graviti. All of these characteristics in the form cakera around epsilon Eridani habuk, kewujudan reserve jejari planets orbit around 40 AU (additional to the depths of the planet dikesan through prod-jejari Siwak F).

No comments:

Post a Comment