Fail:Microquasar GRO J1655-40.jpg

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Ringkasan

Keterangan
English: Artist's rendition of a black hole with an orbiting companion star that overflows its Roche lobe. Mass from the companion star is drawn towards the black hole, forming an accretion disk. GRO J1655-40 is the second so-called 'microquasar' discovered in our Galaxy. Microquasars are black holes of about the same mass as a star. They behave as scaled-down versions of much more massive black holes that are at the cores of extremely active galaxies, called quasars. Astronomers have known about the existence of stellar-mass black holes since the early 1970s. Their masses can range from 3.5 to approximately 15 times the mass of our Sun. Using Hubble data, astronomers were able to describe the black-hole system. The companion star had apparently survived the original supernova explosion that created the black hole. It is an aging star that completes an orbit around the black hole every 2.6 days. It is being slowly devoured by the black hole. Blowtorch-like jets (shown in blue) are streaming away from the black-hole system at 90 percent of the speed of light.
Tarikh (released)
Sumber https://science.nasa.gov/asset/hubble/artists-view-of-black-hole-and-companion-star-gro-j1655-40
Pengarang ESA, NASA, and Felix Mirabel (French Atomic Energy Commission and Institute for Astronomy and Space Physics/Conicet of Argentina)

Perlesenan


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Fail ini, yang pada asalnya dihantar ke Hubble Site, telah disemak pada 17 May 2020 oleh penyemak Green Giant, yang mengesahkan bahawa ia telah didapati di sana di bawah lesen yang dinyatakan pada tarikh itu.

Captions

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Artist's View of Black Hole and Companion Star GRO J1655-40

Items portrayed in this file

menggambarkan

Cakera akresi

masa permulaan

18 November 2002

media type Inggeris

image/jpeg

hasil tambah semak

da19afbdec9668502d387f08435b13e7055edcc4

kaedah penentuan: SHA-1

saiz data

695,507 bait

tinggi

2,400 piksel

lebar

3,000 piksel

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