SPECKLE IMAGING EXCLUDES LOW-MASS COMPANIONS ORBITING the EXOPLANET HOST STAR TRAPPIST-1
Astrophysical Journal Letters, ISSN: 2041-8213, Vol: 829, Issue: 1
2016
- 53Citations
- 15Captures
- 6Mentions
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Article Description
We have obtained the highest-resolution images available of TRAPPIST-1 using the Gemini-South telescope and our speckle imaging camera. Observing at 692 and 883 nm, we reached the diffraction limit of the telescope providing a best resolution of 27 mas or, at the distance of TRAPPIST-1, a spatial resolution of 0.32 au. Our imaging of the star extends from 0.32 to 14.5 au. We show that to a high confidence level, we can exclude all possible stellar and brown dwarf companions, indicating that TRAPPIST-1 is a single star.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84989168165&origin=inward; http://dx.doi.org/10.3847/2041-8205/829/1/l2; http://stacks.iop.org/2041-8205/829/i=1/a=L2?key=crossref.afd3aa9e461dc16a2683be53010206cf; http://stacks.iop.org/2041-8205/829/i=1/a=L2/pdf; https://iopscience.iop.org/article/10.3847/2041-8205/829/1/L2; https://dx.doi.org/10.3847/2041-8205/829/1/l2; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=de3fe50b-24e7-41f4-9583-9e0858b13950&ssb=03916228434&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.3847%2F2041-8205%2F829%2F1%2FL2&ssi=86deffe7-cnvj-468d-901f-86cee7faf489&ssk=botmanager_support@radware.com&ssm=400726017603923138752097302530332635&ssn=ac8e3156899bd86ba83786b2b6cd050cbcb90900c3c4-8990-4f21-a01841&sso=7c00ff8c-bc564dd29dea75e469d124fc2d5ed222aa28fc9a8c1cf7a4&ssp=62084518811726530529172710340727930&ssq=30082123212265806556429239387195614318380&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2Y5MDAwMGMxZDc2YmItMzk2MS00N2VjLTlkZGItNjdmYTVhZTY2ODdlOC0xNzI2NTI5MjM5NDUzNjAyODgzMDkyLTAyMjZlMTEyMDQwNzhhMjE4NzQ5MTUiLCJfX3V6bWYiOiI3ZjYwMDBkNzYzNGE3Ni05ZTRkLTRjMmMtYjJhMC1mYzAzNGMyZjE1MjkxNzI2NTI5MjM5NDUzNjAyODgzMDkyLTBmODZiMDY5NWY5MzkxM2E4NzUwMDUiLCJyZCI6ImlvcC5vcmcifQ==
American Astronomical Society
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