LP 415-17 - Three super-Earths around an K Dwarf

A system of three transiting super-Earths in a cool dwarf star
https://arxiv.org/abs/1801.06249

Quote :

We present the detection of three super-Earths transiting the cool star LP415-17, monitored by K2 mission in its 13th campaign. High resolution spectra obtained with HARPS-N/TNG showed that the star is a mid-late K dwarf. Using spectral synthesis models we infer its effective temperature, surface gravity and metallicity and subse- quently determined from evolutionary models a stellar radius of 0.58 R Sun. The planets have radii of 1.8, 2.6 and 1.9 R Earth and orbital periods of 6.34, 13.85 and 40.72 days. High resolution images discard any significant contamination by an intervening star in the line of sight. The orbit of the furthest planet has radius of 0.18 AU, close to the inner edge of the habitable zone. The system is suitable to improve our understanding of formation and dynamical evolution of super-Earth systems in the rocky - gaseous threshold, their atmospheres, internal structure, composition and interactions with host stars.

Edit: Corrected goofy mistake.

It's seems by the paper that the Star is middle to late K dwarf star.

Ah yep! Corrected. Thanks. I saw the name and had LP 358-499 and LP 358-348 in my head still (partially because I was checking to make sure this was indeed a new system). Thanks! Corrected the title.

Another paper on the same star.

EPIC 210897587: A Bright Metal-Poor M Dwarf with Three Transiting Super-Earths
https://arxiv.org/abs/1801.06957

Sirius_Alpha wrote:

Another paper on the same star.

EPIC 210897587: A Bright Metal-Poor M Dwarf with Three Transiting Super-Earths
https://arxiv.org/abs/1801.06957

So it’s a M or K dwarf star?

Daniel wrote:

So it’s a M or K dwarf star?

Yes

Anyway it's become K2-155.