KID 201920032 - APHC0110114
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by
zoo3hans
KID 201920032 seems to have at least one planet with a period around 28.2 days.
See also http://talk.planethunters.org/#/boards/BPH0000007/discussions/DPH00008nt
page 7 (Arvin)
page 14 (Mark)
Posted
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by
Dolorous_Edd
Target listed under GO1069_LC
Also see https://www.cfa.harvard.edu/~avanderb/k2c1/ep201920032.html
Also it is UV source GALEXASC J113625.68+074510.7
Star is TYC 857-832-1
SkyView DSS 2 Red 1'x1'
SDSS
Colors are:
SDSS:
g-r = 0.84 ; u-g = 1.42
r - i = 0.18 ; g-r = 0.84
2MASS
H - K = 0.115 ; J - H = 0.489
Posted
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by
ajamyajax
Re 201920032 update: speculative, but also maybe interesting that a weak P=23.4 signal appeared from one of the circular aperture files (#1-I think). That is close to one of the possible second test transits I mentioned before. It is still blended at times however, so difficult to discern otherwise.
p.s. And thank you HM and DE for more info or links in your posts.
Posted
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by
ajamyajax
On the other hand -- if I remove the P=28.2x transit and do not detrend each aperture data file, I get a short period signal that starts around P=1.95895. The rounded P=3.9179 signal seen here also could then be a harmonic at 2x that value. And 23.x could be a harmonic signal also of that period... So work and testing on this data continues. And this is best seen in the PRF (Pixel Response Function) series which is why that is shown here. Also note the individual aperture signal strength could change with the removal of the primary transit data. And glitches and outlier data can amplify signals, but not removing any of those just yet.
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ajamyajax
DE: took a look at your data posted earlier, but couldn't be sure. I hope you keep at it though and come up with a better possible second signal than I have.
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by
Dolorous_Edd
in response to ajamyajax's comment.
OK, accidently removed it
Will just repost it
Caveat: this is just detrend went wrong, dips are probably introduced by bad detrending
Posted