Transiting hot Uranus at GJ 3470

So... a group of amateurs claims to have detected a herd of giant transiting planets at GJ 3470, but the discovery paper for the b planet at least presents us four years of HARPS RVs wherein such planets should have been obvious.

GJ 3470 c: A Saturn-like Exoplanet Candidate in the Habitable Zone of GJ 3470
https://arxiv.org/abs/2007.07373

At the risk of sounding rude, I have gotten into arguments with these people before on Facebook and it's readily apparent to me that at least some of them do not fundamentally grasp the science they're trying to work with, and I think this paper really shows that.

Well we will see in near future if there are really other transiting planets .This intriguing paper surely enforce some professionals to have a look at this star more closely. I wonder whether anybody looked for another planets around that star after discovering planet b

Out of interest, what's the highest mass that would have evaded detection? Presumably if GJ 3470 c exists it would have to be a super-puff like HIP 41378 f, or the Kepler-51 planets...

It's on exoplanet.eu now......
http://exoplanet.eu/catalog/gj_3470_c/

Transiting Trojan exoplanets finally found?    

GJ3470-d and GJ3470-e: Discovery of Co-Orbiting Exoplanets in a Horseshoe Exchange Orbit

Quote :

We report the discovery of a pair of exoplanets co-orbiting the red dwarf star GJ3470. The larger planet, GJ3470-d, was observed in a 14.9617-days orbit and the smaller planet, GJ3470-e, in a 14.9467-days orbit. GJ3470-d is sub-Jupiter size with a 1.4% depth and a duration of 3 hours, 4 minutes. The smaller planet, GJ3470-e, currently leads the larger planet by approximately 1.146-days and is extending that lead by about 7.5-minutes (JD 0.0052) per orbital cycle. It has an average depth of 0.5% and an average duration of 3 hours, 2 minutes. The larger planet, GJ3470-d, has been observed on seven separate occasions over a 3-year period, allowing for a very precise orbital period calculation. The last transit was observed by three separate observatories in Oklahoma and Arizona. The smaller planet, GJ3470-e, has been observed on five occasions over 2-years. Our data appears consistent with two exoplanets in a Horseshoe Exchange orbit. When confirmed, these will be the second and third exoplanets discovered and characterized by amateur astronomers without professional data or assistance. It will also be the first ever discovery of co-orbiting exoplanets in a Horseshoe Exchange orbit.

No. Both TESS photometry and HARPS RV's disprove the c, d and e candidates that Alberto and his group have been publicizing. That all aside, it's pretty clear from reading their paper that their methodology is flawed. Expect a paper on arXiv about this soon.

Planets at short 15 days period can not be missed by tess and another large 9.2 earth radius .It is bizarre claim .Those amateurs are clearly delusional or on lsd