A team led by Andrea Botteon used Chandra and eROSITA X-rays to trace the radio 'Treble Clef' to a black hole outburst and a cluster collision. The authors call the two-stage origin likely; the merger evidence comes from the shape of the cluster's hot gas.
Perspective Coverage
3 publishers
- Builder
- Builder 15%
- Operator
- Operator 7%
- Investor
- Investor 78%
Reality
- Evidence62
- Adoption
- Not scored
- Hype gap+10
- Incentives
- Not scored
- Confidence60
Bulgeless galaxies in DESI data keep black holes on the usual stellar-mass track
Oxford-led astronomers using DESI found 546 bulgeless galaxies with feeding black holes sit on the same black hole-to-stellar mass relation as bulged ones. A bulge usually signals past mergers, so the result favours growth fed by bars and spiral arms, if that proxy holds.
Reality
- Evidence55
- Adoption
- Not scored
- Hype gap+15
- Incentives
- Not scored
- Confidence50
The spin the tidal disruption models left out may explain fading black hole flares
A Syracuse-led team says a star that arrives already rotating fast cannot be spun up much further, which lets each weaker pass finally look weaker. Four of about ten known repeaters fade.
Reality
- Evidence50
- Adoption
- Not scored
- Hype gap+15
- Incentives35
- Confidence55
Illuminated gas pins a quasar pair's depth to half a million light-years in simulations
Redshifts of double quasars can be wrong about depth by as much as 10 million light-years, because the black hole's own outflows spoil the velocity. Huanqing Chen's team tested reading the separation from lit-up gas.
Reality
- Evidence52
- Adoption
- Not scored
- Hype gap+14
- Incentives62
- Confidence55
The case for 'black hole stars' rests on two of Webb's little red dots
Webb picks up little red dots in nearly every image it takes, but two of them look like nothing in the ground-based archives, and the teams that found them say the pair hides a newborn supermassive black hole inside a bright hydrogen envelope.
Reality
- Evidence46
- Adoption33
- Hype gap+20
- Incentives55
- Confidence52
eROSITA's second release logs 1.9 million X-ray point sources from three stacked sky scans
Three stacked passes over the whole sky produced the largest public X-ray source catalog to date. Most of what it found lies outside the Milky Way, and the consortium says X-ray detection is only the first step.
Reality
- Evidence58
- Adoption45
- Hype gap+20
- Incentives60
- Confidence62