File proveniente da Wikimedia Commons. Clicca per visitare la pagina originale

File:M33 X-7.jpg

Da Wikipedia, l'enciclopedia libera.
Vai alla navigazione Vai alla ricerca

M33_X-7.jpg(516 × 516 pixel, dimensione del file: 65 KB, tipo MIME: image/jpeg)

Logo di Commons
Logo di Commons
Questo file e la sua pagina di descrizione (discussione · modifica) si trovano su Wikimedia Commons (?)
Descrizione

The main component of this graphic is an artist's representation of M33 X-7, a binary system in the nearby galaxy M33. In this system, a star about 70 times more massive than the Sun (large blue object) is revolving around a black hole. This black hole is almost 16 times the Sun's mass, a record for black holes created from the collapse of a giant star. Other black holes at the centers of galaxies are much more massive, but this object is the record-setter for a so-called "stellar mass" black hole.

In the illustration, an orange disk surrounds the black hole. This depicts material, fed by a wind from the blue companion star, which has been swept into orbit around the black hole. Rather than flowing unimpeded and uniformly into space, wind from the star is pulled towards the black hole by its powerful gravity. The wind that does make it past the black hole is disrupted, causing turbulence and ripples beyond the disk. The companion star itself is also distorted by the gravity from the black hole. The star is stretched slightly in the direction of the black hole, causing it to become less dense in this region and to appear darker.

The inset shows a composite of data from NASA's Chandra X-ray Observatory (blue) and the Hubble Space Telescope. The bright objects in the inset image are young, massive stars around M33 X-7, and the bright, blue Chandra source is M33 X-7 itself. X-rays from Chandra reveals how long the black hole is eclipsed by the companion star, which indicates the size of the companion. Observations by the Gemini telescope on Mauna Kea, Hawaii track the orbital motion of the companion around the black hole, giving information about the mass of the two members of the binary. Other observed properties of the binary were also used to help constrain the mass estimates of both the black hole and its companion.
Data
Fonte http://www.nasa.gov/mission_pages/chandra/multimedia/photos07-112.html
Autore Illustration: NASA/CXC/M.Weiss; X-ray: NASA/CXC/CfA/P.Plucinsky et al.; Optical: NASA/STScI/SDSU/J.Orosz et al.


Public domain Questo file è nel pubblico dominio perché creato dalla NASA. La politica sul copyright della NASA afferma che «il materiale della NASA non è protetto da copyright a meno che non sia specificato altrimenti». (NASA copyright policy e JPL Image Use Policy).
Attenzione:

Didascalie

Aggiungi una brevissima spiegazione di ciò che questo file rappresenta

Elementi ritratti in questo file

raffigura

Cronologia del file

Fare clic su un gruppo data/ora per vedere il file come si presentava nel momento indicato.

Data/OraMiniaturaDimensioniUtenteCommento
attuale22:42, 21 ott 2007Miniatura della versione delle 22:42, 21 ott 2007516 × 516 (65 KB)Vaikunda Raja{{PD-NASA}} This image is from [http://www.nasa.gov/mission_pages/chandra/multimedia/photos07-112.html here] Category:Nasa

Le seguenti 2 pagine usano questo file:

Utilizzo globale del file

Anche i seguenti wiki usano questo file:

Metadati