The KESPRINT Consortium

The KESPRINT Consortium is a multi-national collaboration for the discovery, confirmation and characterization of planet candidates from the K2 space mission. Given the limited amount of telescope time, our natural focus is the detection of the most exciting objects, rather than attempting to provide complete catalogues.

We have three main scientific goals.

1) Measure the masses of rocky planets. This requires discovering planets with ultra-short orbits orbiting bright stars, so that these measurements are achievable with current instruments.

2) Discovery of low-density planets suitable for atmospheric characterization. While low-density Earth-size planets will be out of reach, our goal to search for low-density gaseous planets of any size.

3) To conduct a search for hot and habitable zone rocky planets around all the M-dwarfs in the K2 fields, which are brighter than I=13 mag.

Our team has several pipelines for the detection of planet candidates from K2 raw light curves, and has been awarded competitive open time at international telescopes.

The Team

S. Albrecht, R. Alonso, G. Antoniciello, O. Barragán, M. Esposito, A. B. Justesen, J. Cabrera, W. D. Cochran, Sz. Csizmadia, F. Dai, H. Deeg, Ph. Eigmuller, M. Endl, A. Erikson, M. Fridlund, D. Gandolfi, S. Grziwa, E. Guenther, A. P. Hatzes, D. Hidalgo, T. Hirano, M. C. Johnson, J. Korth, J. Livingston, R. Luque, P. Montañes-Rodriguez, N. Narita, D. Nespral, G. Nowak, E. Palle, M. Patzold, C. M. Persson, J. Prieto-Arranz, H. Rauer, A. M. S. Smith, V. Van Eylen, J. N. Winn.

Telescope Resources

KESPRINT does not have any guaranteed time for the follow up efforts of planet candidates, and relies on open time applications. Nevertheless, our team has an excellent track record in this respect, and we regularly obtain time for:

  • AO, Speckle, and Lucky Imaging: AO188@Subaru Telescope, NESSI@WIYN, and FC@TCS

  • Seeing limited photometry: MUSCAT@Okayima, MUSCAT2@TCS, and CAMELOT@IAC80

  • Reconnaissance spectroscopy and moderate-precision radial velocity (3-10 m/s): FIES@NOT, and Tull@2.7m-McDonald Observatory

  • Highly stable spectrographs (~1 m/s): HARPS@3.6m-ESO, HARPS-N@TNG, HDS@SUBARU, CARMENES@CaHa, and HIRES@Keck


Latest KESPRINT papers

K2-260 b: a hot Jupiter transiting an F star, and K2-261 b: a warm Saturn around a bright G star
Johnson, M.C. et al.
Monthly Notices of the Royal Astronomical Society Volume (2018)

44 Validated Planets from K2 Campaign 10
Livingston, J.H. et al.
Astronomical Journal Volume 156 (2018)

HD 89345: a bright oscillating star hosting a transiting warm Saturn-sized planet observed by K2
Van Eylen, V. et al.
Monthly Notices of the Royal Astronomical Society Volume 478 (2018)

Complete list of papers