michaelJan 17, 2025

15-Jan-2025
Not all Hot Jupiters orbit solo
A UNIGE study shows that #HotJupiters do not systematically eject their planetary neighbours during migration. This discovery overturns our perception of the architecture of #planetarySystems

https://www.eurekalert.org/news-releases/1070234

#science #astrobiology #exoplanets

Not all Hot Jupiters orbit solo

Hot Jupiters are giant planets initially known to orbit alone close to their star. During their migration towards their star, these planets were thought to accrete or eject any other planets present. However, this paradigm has been overturned by recent observations, and the final blow could come from a new study led by the University of Geneva (UNIGE). A team including the National Centre of Competence in Research (NCCR) PlanetS, the Universities of Bern (UNIBE) and Zurich (UZH) and several foreign universities has just announced the existence of a planetary system, WASP-132, with an unexpected architecture. It not only contains a Hot Jupiter but also an inner Super-Earth and an icy giant planet. These results are published in Astronomy & Astrophysics.

EurekAlert!
MPS Göttingen has movedApr 29, 2024
Coming up this week on Thursday is the next talk in our public lecture series “Was ist da draußen?” on #exoplanets. Vincent Böning from #mpsgoettingen will speak about the winds on #HotJupiters. In German. More infos here: https://www.mps.mpg.de/was-ist-da-draussen
Vortragsreihe 2024

MPS Göttingen has movedFeb 6, 2024
#HotJupiters, #TwinEarth and other #habitable worlds - the current public lecture series at #MPSGoettingen from February to May 2024 in #Göttingen is devoted to #exoplanet research. All lectures in German. More information here: https://www.mps.mpg.de/was-ist-da-draussen
Vortragsreihe 2024

Phys.orgJun 7, 2023

Referenced link: https://phys.org/news/2023-06-hot-jupiters-orbiting.html
Discuss on https://discu.eu/q/https://phys.org/news/2023-06-hot-jupiters-orbiting.html

Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/physorg_com/status/1666444415802417157#m

'#HotJupiters' may not be orbiting alone @AAS_Publishing https://hcvalidate.perfdrive.com/fb803c746e9148689b3984a31fccd902// https://phys.org/news/2023-06-hot-jupiters-orbiting.html

Show threadDr. L. C. MayorgaJan 12, 2023
In the afternoon exoplanet session we covered #exoplanetatmospheres but this time specifically #hotjupiters. Or they could've called it atmospheres 8.... HJs are great targets for all the fun high spectral resolution stuff because they are big and bright and you can even start to map them spatially with clever techniques during eclipse #AAS241
Show threadEamonn KerinsNov 8, 2022
Currently we know of more than 5000 #exoplanets #discovered using a variety of techniques and survey instruments. So far most have been found using the #TransitMethod where we look for tiny dips in #starlight as one of its #planets passes in front of it. However this method tends to more easily pick out planets that are large (like #Jupiter) and close in to their #HostStar - making them #HotJupiters. We have no planets like that in our #SolarSystem, but there are other methods we can use. (2/n)
Show threadJoe RenaudApr 27, 2022
There is so much more I could talk about like liquid ocean #tides, tides in the gaseous layer of #HotJupiters, how feedback loops can be created, and more. But this thread is long enough, so I will instead leave it here after sharing my favorite fact about the #universe...