K2 still producing nice results

K2, the second life of the Kepler satellite is stil observing and producing nice results. I myself, am part of the KESPRINT consortium (an international collaboration joined from the former KEST and ESPRINT consortium). Analysing the publically available K2 data, we look for promising planet candidates and confirm their planetary nature and determine their masses by radial velocity follow up observations.

Looking at ADS today, I saw we were quite productive. As this list only shows K2 planets confirmed by our consortium you can imagen the number of characzterised planets detected by the K2 mission to be much higher.

Here is a list of some papers related to the KEST and KESPRINT Consortium:

  • Gandolfi et al. 2017: The transiting multi-planet system HD3167: a 5.7 MEarth Super-Earth and a 8.3 MEarth mini-Neptune
  • Guenther et al. 2017: K2-106, a system containing a metal rich planet and a planet of lower density
  • Nespral et al. 2017: Mass determination of K2-19b and K2-19c from radial velocities and transit timing variations
  • Fridlund et al. 2017: EPIC 210894022b – A short period super-Earth transiting a metal poor, evolved old star
  • Nowak et al. 2017: EPIC 219388192b—An Inhabitant of the Brown Dwarf Desert in the Ruprecht 147 Open Cluster
  • Eigmüller et al. 2017: K2-60b and K2-107b. A Sub-Jovian and a Jovian Planet from the K2 Mission
  • Barragán et al. 2017: EPIC 218916923 b: a low-mass warm Jupiter on a 29-day orbit transiting an active K0 V star
  • Smith et al. 2017: K2-99: a subgiant hosting a transiting warm Jupiter in an eccentric orbit and a long-period companion
  • Barragán et al. 2016: EPIC 211391664b: A 32 M Neptune-size Planet in a 10 Day Orbit Transiting an F8 Star
  • Grizwa et al. 2016: K2-31b, a Grazing Transiting Hot Jupiter on a 1.26-day Orbit around a Bright G7V Star
  • Johnson et al. 2016: Two Hot Jupiters from K2 Campaign 4


The ressurection of Kepler

A very nice article about the possible future of Kepler can be found here.

It seems they have good idea what is still possible to do with Kepler. and thats much. It will be possible to have pointing in the ecliptic plane of about 40-80 days each. So Kepler will not be able to continue its long pointing but can instead search with short pointings at different positions of the sky for shorter period planets. So it will be more like CoRoT, but with higher accuracy and not the limitations to the eyes of CoRoT but to the ecliptic. The final decission on the future of Kepler will be made in mid-2014.

Kepler Science Conference 2

This week the Second Kepler Science Conference takes place. We already saw in the last days many Kepler related publications going online on astroph. First the KOI 351 seven-planet-system was announced by two groups. Last week the Radial Velocity measurements by two groups (using Keck and Harps North) of Kepler 78b were reported giving it a mass similar to the Earth.

Now a publication about the frequency of earth sized planets based on Kepler data ist out.

Lets see what else will be presented until Friday