Latest News for: smbh

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Not All Black Holes are Ravenous Gluttons

Universe Today 17 May 2024
It appears that every large galaxy has an SMBH at its heart ... It’s a sub-Eddington SMBH, meaning that it hasn’t reached the theoretical maximum accretion rate ... gas move nearer to the SMBH.
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The Stellar Demolition Derby in the Centre of the Galaxy

Universe Today 05 Apr 2024
The Milky Way’s supermassive black hole (SMBH) is called Sagittarius A* (Sgr ... The rate of collisions is more severe the closer stars are to the SMBH ... These stars end up migrating away from the SMBH.
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Little Red Dots in Webb Photos Turned Out to Be Quasars

Universe Today 16 Mar 2024
And whereas some are relatively dormant, like the SMBH located in the center of the Milky Way (Sagittarius A*), others are extremely active and are growing at the rate of several Solar masses a year.
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The Brightest Object Ever Seen in the Universe

Universe Today 20 Feb 2024
a quasar (J0529-4351) located about 12 billion light years away that has the fastest-growing supermassive black hole (SMBH) at its center ... In this case, the SMBH at the core of J0529-4351 is growing by ...
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A Black Hole Has Cleared Out Its Neighbourhood

Universe Today 07 Feb 2024
But in one galaxy, the SMBH has choked on its meal and spit it out, sending material away at high speeds and clearing out the entire neighbourhood ... Astronomers have spotted a distant SMBH in the galaxy Markarian 817 that has broken this picture.
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Astronomers are Getting Really Good at Weighing Baby Supermassive Black Holes

Universe Today 03 Feb 2024
In the 1970s, astronomers deduced that the persistent radio source coming from the center of our galaxy was actually a supermassive black hole (SMBH) ... the mass of an SMBH in SDSS J092034.17+065718.0.
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Sometimes Compact Galaxies Hide Their Black Holes

Universe Today 10 Nov 2023
As powerful radiation is released from the SMBH, it causes the dust and gas to glow brightly in visible light, X-rays, gamma-rays, and other wavelengths ... This study was led by Carolina Andonie, a Ph.D ... Claire Greenwell, and Dr. Annagrazia Puglisi ... ESO ... .
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New Stars Forming Uncomfortably Close to the Milky Way’s Supermassive Black Hole

Universe Today 12 Oct 2023
For a cluster, and especially one so close to an SMBH, IRS 13 has an exceptionally high density of stars ... At a certain distance, it was drawn toward the SMBH by the object’s powerful gravity.
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A Black Hole Nibbles on a Star Every 22 Days, Slowly Consuming it

Universe Today 08 Sep 2023
The observatory’s X-Ray Telescope (XRT) has captured emissions from a supermassive black hole (SMBH) in a galaxy about 500 million light-years away ... When an SMBH feeds on a star, it’s ...
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A Black Hole Switched On in the Blink of an Eye

Universe Today 11 Jul 2023
The combined observations and spectra revealed that the source was a supermassive black hole (SMBH) in a distant galaxy that mysteriously “switched on,” becoming one of the most dramatic bursts of brightness ever seen with a black hole.
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Pulsars Could Help Map the Black Hole at the Center of the Milky Way

Universe Today 15 Jun 2023
... consortium of astronomers and observatories – announced they had taken the first images of Sag A*, which came just two years after the release of the first-ever images of an SMBH (M87).
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eROSITA Sees Changes in the Most Powerful Quasar

Universe Today 23 May 2023
The team was led by Dr ... In addition to its brightness, J1144 is much closer to Earth than similarly-luminous sources, making it ideal for astronomers to observe its SMBH and the effects it has on the surrounding environment. As Dr ... For their study, Dr ... .
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M87 Galaxy Reconstructed in Thrilling 3D

Universe Today 18 Apr 2023
And, of course, its SMBH was the first black hole ever imaged, thanks to the Event Horizon Telescope ... evidence of a supermassive black hole when it captured this image of Messier 87’s SMBH.
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Hypervelocity Stars Teach us About Black Holes and Supernovae

Universe Today 23 Mar 2023
Hypervelocity stars (HVS) certainly live up to their name, traveling thousands of kilometers per second or a fraction of the speed of light (relativistic speeds) ... panspermia theory) ... In a recent study from Leiden University in the Netherlands, Ph.D ... .
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A Distant Galaxy Ate All of its Friends. Now It’s All Alone

Universe Today 14 Mar 2023
Over 13 billion years ago, the first galaxies in the Universe formed ... Second, the relativistic jet streaming from its SMBH created a bright X-ray source about 140,000 light-years away, which implied it had pushed through gas surrounding the galaxy ... .

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