Two new massive planets detected around the star HD 27894
June 12, 2017 by Tomasz Nowakowski report
Panels a) and b) illustrate the 3PKM signals of planets HD 27894 b and c, phase folded to their periods of about 18 and 36 days, respectively. Panel c) illustrates the Doppler signal induced by planet d, and panel d) shows the residuals of the 3PKM. Credit: Trifonov et al., 2017.
Gas giant planet HD 27894 b appears to have at least two massive companions, according to a new study published June 1 in a paper on arXiv.org. One of the newly discovered alien worlds is a Saturn-mass planet, while the other one is a cold exoworld several times more massive than Jupiter.
Located about 138 light years away from the Earth, HD 27894 is a non-active solar-type star of spectral type K2V approximately 20 percent less massive than the sun. In 2005, HD 27894 b was detected using radial velocity measurements conducted with the use of the European Southern Observatory's (ESO) High Accuracy Radial velocity Planet Searcher (HARPS) at the La Silla Observatory in Chile.
Read more at:
https://phys.org/news/2017-06-massive-planets-star-hd.html#jCp
