Black Hole Hide and Seek
20 ژانویه 2020
This page isn't available in your language yet, if you'd like to provide a translation please contact us at info@unawe.org

Hide and Seek can be a fun game, but imagine playing it with an invisible black hole that’s not where you expect it should be!

Astronomers are doing just that when looking for black holes in small dwarf galaxies. Dwarf galaxies are much smaller than normal galaxies. They are made up of just a few billion stars rather than hundreds of billions.

Larger galaxies are known to host a black hole in their centers. But this is not the case for 13 newly-discovered black holes in small dwarf galaxies that are more than 100 times less massive than our own Milky Way. A team of astronomers have discovered that these black holes are instead found wandering in the outskirts of their host dwarf galaxies.

Why? The scientists suggest this is because the galaxies have likely have merged with others earlier in their history. 

 

 

Image credit: Sophia Dagnello, NRAO/AUI/NSF

نکته‌های جالب

 The supermassive black hole at the centre of our Galaxy, called Sagittarius A* is about 4.5 million times more massive than our Sun!

This Space Scoop is based on a Press Release from NRAO.
تصویر
نسخه مناسب پرینت
ملاقه‌های فضایی بیشتر

هنوز کنجکاوید؟ بیشتر بدانید...

ملاقه‌ فضایی چیست؟

نجوم را بیشتر کشف کنید

الهام بخشیدن به نسل جدیدی از سیاحان فضا

دوستان ملاقه فضایی

تماس با ما

This website was produced by funding from the European Community's Horizon 2020 Programme under grant agreement n° 638653