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@prachisrivas@masto.ai
2025-10-04 14:50:17

Circles or rectangles? What do you see? What does this tell you about your perception and consciousness?
Always fascinated by Anil Seth.
theguardian.com/commentisfree/<…

Can you see circles or rectangles? And does the answer depend on where you grew up?
We may believe we see the world exactly as it is – but as studies of optical illusions show, it’s far more complex than that, says cognitive and computational neuroscience professor Anil Seth

@arXiv_astrophGA_bot@mastoxiv.page
2025-10-08 09:29:29

Central Massive Black Holes Are Not Ubiquitous in Local Low-Mass Galaxies
Fan Zou, Elena Gallo, Anil C. Seth, Edmund Hodges-Kluck, David Ohlson, Tommaso Treu, Vivienne F. Baldassare, W. N. Brandt, Jenny E. Greene, Piero Madau, Dieu D. Nguyen, Richard M. Plotkin, Amy E. Reines, Alberto Sesana, Jong-Hak Woo, Jianfeng Wu
arxiv.org/abs…

Central Massive Black Holes Are Not Ubiquitous in Local Low-Mass Galaxies
The black-hole occupation fraction ($f_\mathrm{occ}$) defines the fraction of galaxies that harbor central massive black holes (MBHs), irrespective of their accretion activity level. While it is widely accepted that $f_\mathrm{occ}$ is nearly 100% in local massive galaxies with stellar masses $M_\star \gtrsim 10^{10}~M_\odot$, it is not yet clear whether MBHs are ubiquitous in less-massive galaxies. In this work, we present new constraints on $f_\mathrm{occ}$ based on over 20 years of Chandra i…