Science papers are always full of figures, but very rarely are they to scale, but in this astrophysics paper, which I’ve never heard of an astrophysics paper having a figure to scale, the authors included a 1:1 scale of a 5 Earth-mass back hole. So take 5 Earths worth of mass, compress it so it curbed spacetime infinitely, and this is how big that would be.
My hand for scale, don’t let your actual hand get that close to a real black hole though.
@ROCKETDRAG ...I'm supposed to be utterly terrified of space, right?
@LexYeen You can be, or not. lol
@ROCKETDRAG But.. but.. spaghetti fingers!
@Kilroy my fongers!
@ROCKETDRAG "both in real life and relative to the image"
@Felthry Gotta' cover all the bases in science.
@ROCKETDRAG what if the image is taken to mars though
@Felthry Should still work the same.
@ROCKETDRAG but you'd be a few AU off
@ROCKETDRAG (or less than an AU off, depending on where mars is relative to earth right now)
@Felthry I think that bit is specifically referring to the size of the dark matter halo, which truly wouldn't change.
@ROCKETDRAG yes, but if the center of it is located on earth vs located on mars?
@Felthry Oh yeah, well, it'd be off by whatever your distance is then. I think they're just not assuming you're somewhere other than where the paper is in front of you heh.
@ROCKETDRAG ...So dense that one with the mass of a 'hot Jupiter' comes in a package the size of a bowling ball...
@Kyresti It's like, amazing.
@ROCKETDRAG absolutely don't want to drop that on my toes
@carbontwelve Maybe one of a hanful of times it's actually happened in astrophysics, super jealous of them!
@ROCKETDRAG Next up: foldable papers to demonstrate the effects of curvature changes.
@amiloradovsky I need an infinitely deep paper curve on my desk by 4pm.
I thought you could get that close to a black hole if it didn't have an accretion disc, right?
@UnclearFuture Yep! Even with an accretion disk, as long as it's very low-energy, you can get close. The black hole in "Interstellar" was a great example of that.
Ah, thank you for explaining :).
I heard it in an SFIA video where he explained that if it didn't have one you'd have to actually try very hard to get pulled in/enter it.
@UnclearFuture Yeah! That's right! With a disk, if you flew right into it, energetic forces would potentially sow you down enough so you'd eventually fall in.
Oh, how interesting! Thank you :)
@ROCKETDRAG love too spaghettify my own fingers
@ROCKETDRAG don't even need sauce when that shit just redshifts into oblivion all by itself like 💋👌
@ROCKETDRAG (though truth be told I'm sure a black hole with that low of a mass would simply violently explode in a burst of Hawking radiation long before it really got to add much of anything to its mass)
@Thaminga I surprisingly learned yesterday that it would last about 71,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 years, give or take a Tuesday.
@ROCKETDRAG ... huh, fancy that
there goes the planet, I guess~
@Thaminga Yeah like, I too thought Hawking Radiation was some massive outpour, but turns out it's a little trickle.
Little being relative, albeit.
@ROCKETDRAG Yeah. I know it accelerates the less mass a black hole has, I just (vastly) overestimated the curve on that.
@ROCKETDRAG Out of curiosity, do you have the reference to the paper?
@ROCKETDRAG Thanks. Also, a bit scary :)
@ROCKETDRAG i remember reading somewhere that if one were to compress the sun to the size of a basketball it would turn into a black hole
@ROCKETDRAG Pretty sure if you'd ask me to name a domain with a 1:1 scale figure in one of its scientific papers, astrophysics would have been my last choice. :'D
snouts.online is a friendly, furry-oriented, lgbtq+, generally leftist, 18+ sex-positive community that runs on mastodon, the open-source social network technology. you don't need a snout to join, but it's recommended!