David Kipping

@david_kipping

Exoplanets & Exomoons, Cool Worlds Lab, Columbia University

Manhattan, NY
Vrijeme pridruživanja: ožujak 2009.

Medijski sadržaj

  1. 3. velj
    Odgovor korisniku/ci
  2. 2. velj

    Awesome to be included in this list of educational channels! Especially to be put in the list next to outrageously good !

  3. 28. sij

    I did a literature search on this for an outreach video and was amazed by the level of disagreement...

  4. 25. sij
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  5. 25. sij
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  6. 25. sij

    The wonderfully talented writes & stars in our new video. Today we hear about a twist on the space elevator concept, based on her new paper with , with some somber thoughts about our relationship with emerging space tech.

  7. 24. sij
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  8. 24. sij

    this is fine. (data from US Space Surveillance Catalogue)

  9. 20. sij
    Odgovor korisnicima

    I like Bryson’s paper a lot! Back in 2014 found that Gamma Earth peaks at ln(R/Re)=1 (which is 2.7Re mini-Neptune) and then decreases as log(radius) drops, but I don’t think the result holds if one works with R rather than logR.... ()

  10. 17. sij
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  11. 17. sij
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  12. 17. sij
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  13. 16. sij
    Odgovor korisnicima

    Instead we get this... which to be fair is pretty good....

  14. 15. sij
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  15. 15. sij

    Our Kardashev Scale video crossed the million mark! Check it out if you haven't already

  16. 11. sij

    def forecasterlight(M): c1=1.008 t1=2.04 s1=0.279 t2=131.6 s2=0.589 t3=26637.2 s3=-0.044 s4=0.881 c2=c1*t1**(s1-s2) c3=c2*t2**(s2-s3) c4=c3*t3**(s3-s4) if M<t1: R=c1*M**s1 elif t1<M<t2: R=c2*M**s2 elif t2<M<t3: R=c3*M**s3 elif t3<M: R=c4*M**s4 return R

  17. 11. sij

    Method marginalized detrending in action - note how the different methods (colored lines) disagree for the in-transit segment due to the need to extrapolate (always dangerous!). This disagreement leads to inflation of the in-transit errors and an overall robust reconstruction.

  18. 4. sij
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  19. 2. sij
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  20. 24. pro 2019.

    This beautiful artistic impression of photon paths in the vicinity of a black hole looks a lot like the halo drive concept with boomerang geodesics. Image credit Nicolle Fuller/NSF

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