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Tag Archives: Black Hole

Podcast #4: Interview with Chris Stewart

Urban Astronomer avatarPosted on 21 Mar, 2017 by Allen Versfeld27 Jun, 2017
Microphone. Image By Jpcuevas (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons

Welcome to the 4th episode of the Urban Astronomer Podcast!  This episode features news about the discovery of an intermediate mass black hole, and the next in our series of interviews with prominent figures in South African amateur astronomy.  This weeks guest: Chris Stewart.

https://media.blubrry.com/urbanastronomer/s3-eu-west-1.amazonaws.com/constellationonline.net/media/Podcast/UrbanAstronomer/UA_Episode_4.mp3

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Posted in News and Updates, The Urban Astronomer Podcast | Tagged 47 Tuc, ATM, Black Hole, Equipment, Globular Cluster, Interview, Telescope | Leave a reply

Chandra finds Black Hole at the centre of the Milky Way spraying high-energy jet of particles

Urban Astronomer avatarPosted on 6 Feb, 2014 by Allen Versfeld12 May, 2016
Sgr-A, the supermassive black hole at the centre of our galaxy ejects powerful jets of charged particles. This image is a composite of Chandra images in X-ray (shown in purple) with Radio images from the VLA (blue). Image credit: X-ray: NASA/CXC/UCLA/Z. Li et al; Radio: NRAO/VLA

Galaxies around the universe are now known to have supermassive black holes at their cores, and these SMBH’s are known for their powerful jets of high energy partcicles streaming away along their north and south poles.  Recently, the Chandra X-ray space telescope has been peering through the dense wall of gas and dust which lies between us and our own SMBH, and has finally confirmed that we too have one of these vast jets in our own Milky Way galaxy.High … Continue reading →

Posted in News and Updates | Tagged Black Hole, Chandra, Milky Way | Leave a reply

Watching stuff fall into a black hole

Urban Astronomer avatarPosted on 25 Jul, 2012 by Allen Versfeld20 May, 2016
Gas Cloud falling towards a black hole

It’s commonly known amongst astronomers, if not so much amongst the general public, that if you head outside and look up at the constellation of Sagittarius, you’ll be directly facing a vast black hole, millions of times more massive than the Sun.  This beast dwells at the very core of the Milky Way galaxy, stirring up all the material for light years around and devouring anything that approaches too directly.  It’s hard to see because there are such vast clouds … Continue reading →

Posted in News and Updates | Tagged Black Hole | Leave a reply
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