A black hole caught blowing a gust

Lurking about 70 million light years away from Earth in the constellation Grus, you will find the galaxy NGC 7582 — a spiral galaxy harbouring a supermassive black hole at its core. These images were captured as part of a study using the MUSE instrument on ESO’s Very Large Telescope (VLT) to uncover the effect of an active black hole on the formation of stars in the galaxy.

The galaxy contains an active galactic nucleus (AGN)  — an extremely energetic central engine powered by the supermassive black hole gobbling up material in its immediate surroundings.  Matter heats up in this process, launching huge amounts of energy and powerful winds into the surrounding area. But what effect does this have on the galaxy at large? 

To find out, a recent study, led by Stéphanie Juneau from NSF's NOIRLab in the USA, looked at the distribution of different ionised elements in the galaxy. This image shows a classical view of this galaxy, with dust lanes obscuring blue and orange starlight. Compare it with this image, which shows the cone-shaped material flowing out of the AGN in blue.

MUSE also allowed the team to map the motion of the stars and gas. They discovered that NGC 7582 may have a structure surrounding its central supermassive black hole that shields the rest of the galaxy from the harsh outflow of energy coming from the AGN, diverting it away from it in the form of an extremely powerful wind.

Alternative versions of this image

Källa:

ESO / Juneau et al.

Om bilden

ID:potw2206d
Typ:Observation
Publiceringsdatum:7 februari 2022 06:00
Storlek:598 x 610 px

Om objektet

Namn:NGC 7582
Typ:Local Universe : Galaxy : Type : Spiral
Avstånd:70 miljon ljusår
Constellation:Grus
Kategori:Galaxies

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Koordinater

Position (RA):23 18 23.71
Position (Dec):-42° 22' 14.08"
Field of view:1.00 x 1.02 arcminutes
Orientering:Nord är 89.9° vänster om lodrätt

Färger och filter

BandVåglängdTeleskop
Synligt ljus
V
555 nmVery Large Telescope
MUSE
Synligt ljus
R
625 nmVery Large Telescope
MUSE
Synligt ljus
I
775 nmVery Large Telescope
MUSE