Concluding remarks from Ignas Snellen, chair of SOC and director of the Leiden Observatory.
A great conference, well organised for such a massive turnout of ~800 #exoplanet astronomers.
A lot to digest here, especially regarding #JWST results. #Exoplanets5
Caught a long-term collaborator Prof. Jenkins next to his poster on LTT9779 b, with evidence for silicate and titanium clouds.
Poster by Jenkins et al. #Exoplanets5
Conferences inspire.
But not only in the obvious, tey inspire because scientists readily admit their failures.
When hundreds of scientists express how they have failed in what you have struggled to do, too, it inspires.
It becomes clear that you did not fail because you are bad at your job, but because nature doesn't yield her secrets easily.
It means you are not falling behind.
That motivates trying even harder until breakthroughs eventually happen.
And they will happen.
What we have learned in #exoplanets5?
Most rocky exoplanets are bare rocks without atmospheres.
Astronomers hardly ever agree on anything.
More data is always needed.
A new tool for estimating #exoplanet radii and masses, if only one of them is known.
The tools applies the assumption that small #exoplanets have three compositional modes: fully rocky, water worlds, and mini-Neptunes with thick gaseous envelopes.
Poster by Parviainen et al. #exoplanets5
Another great poster by Cortés-Zuleta et al. about multiwavelength caracterisation of #planets. #exoplanets5
It is great because it demonstrates beyond any doubt that my hypothesis, that AD Leo is orbited by a gaseous #planet in spin-orbit resonance, is definitely wrong.
This is achieved with infrared radial velocities.
To be shown wrong is to learn, so it is great!
As a case study, we look at TOI-2048 with lots of stellar variability and rotation, so it is a young star in Group X (a young cluster). So they looked for new members in Gaia. They tried to determine the age of group X from rotation (I guess assuming their are all of the same age given they’re in a cluster??) The age of group X is consistent with NGC smth.
There is also a planet so they modelled the lightcurve components.
What about size? The youngest planets are VERY large. #exoplanets5
TOI-1227 b is a planet currently Jupiter sized but will shrink. So no hot Jupiter future for this one, but sub-Neptune. Not everyone can be as hot as a hot Jupiter right? 🙃
There are some other results I shall not toot about 🤓
Young planets in clusters enable accurate mass determinations!
#exoplanets5
Bibiana Prinoth (moved!)
Mikko Tuomi
Hugh Osborn