Black Holes May Grow Quietly Alongside Galaxies Even without Violent Mergers
4 Articles
4 Articles
Black holes may grow quietly alongside galaxies even without violent mergers
Astronomers analyzed 2,435 galaxies hosting actively feeding black holes using data from the Dark Energy Spectroscopic Instrument (DESI). Among them, they identified 546 "bulgeless" galaxies—systems with little or no central stellar bulge. Their paper, published in Monthly Notices of the Royal Astronomical Society, suggests that galaxies without a central bulge grow black holes just as effectively as galaxies that have one—a surprising sign that…
DESI identifies 546 galaxies without central bulb that feed black holes with the same efficiency as those that do. The entry DESI finds 546 black holes that grow without bulb or galactic fusions aparece primero en Merca2.
No violent collision necessary? An analysis of 2,435 disk galaxies shows that central black holes, even in galaxies with no visible starwurst, follow the same relationship to the entire mass of stars as in systems with bulge. This suggests that slow processes in the galaxy can drive a significant part of the growth of supermassive black holes. Oxford (England). In the center of many [...] The post Black holes can grow even without large fusions …
Astronomers analyzed 2,435 galaxies hosting black holes that actively feed on data from the Dark Energy Spectroscopic Instrument (DESI). Among them, they identified 546 galaxies "without swelling", i.e. systems with little or no central stellar bulge. Their article, published in Monthly Notices of the Royal [...]
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