fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 months agoBlack Holesmander.xyzimagemessage-square132linkfedilinkarrow-up1780arrow-down111
arrow-up1769arrow-down1imageBlack Holesmander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 2 months agomessage-square132linkfedilink
minus-squareddh@lemmy.sdf.orglinkfedilinkEnglisharrow-up4·2 months agoSounds like they are referring to the photon sphere.
minus-squareCat_Daddy [any, any]@hexbear.netlinkfedilinkEnglisharrow-up2·2 months agoI assumed it would be further inward than the photon sphere because heat radiation is (also an assumption) easier for gravity to hold back than light. I don’t know how “heavy” a star’s heat is, though, so ¯\ˍ(ツ)ˍ/¯
minus-squaredwindling7373@feddit.itlinkfedilinkEnglisharrow-up2·2 months agoHeat radiation are particles with a mass and a certain speed, they are all by definition heavier and easier to trap than photons. In terms of escape velocity, nothing can try to escape faster than light.
Sounds like they are referring to the photon sphere.
I assumed it would be further inward than the photon sphere because heat radiation is (also an assumption) easier for gravity to hold back than light. I don’t know how “heavy” a star’s heat is, though, so ¯\ˍ(ツ)ˍ/¯
Heat radiation are particles with a mass and a certain speed, they are all by definition heavier and easier to trap than photons.
In terms of escape velocity, nothing can try to escape faster than light.