%0 Generic %1 howell2016speckle %A Howell, Steve B. %A Everett, Mark E. %A Horch, Elliott P. %A Winters, Jennifer G. %A Hirsch, Lea %A Nusdeo, Dan %A Scott, Nicholas J. %D 2016 %K exoplanet mdwarf multiplicity myown %T Speckle Imaging Excludes Low-Mass Companions Orbiting the Exoplanet Host Star TRAPPIST-1 %U http://arxiv.org/abs/1610.05269 %X 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.

@misc{howell2016speckle, abstract = {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.}, added-at = {2016-10-19T17:09:16.000+0200}, author = {Howell, Steve B. and Everett, Mark E. and Horch, Elliott P. and Winters, Jennifer G. and Hirsch, Lea and Nusdeo, Dan and Scott, Nicholas J.}, biburl = {https://www.bibsonomy.org/bibtex/23654e1e6ca18384fba95595f86f46832/superjenwinters}, description = {Speckle Imaging Excludes Low-Mass Companions Orbiting the Exoplanet Host Star TRAPPIST-1}, interhash = {fce36ee0378a70c79a2bdd7d1033c440}, intrahash = {3654e1e6ca18384fba95595f86f46832}, keywords = {exoplanet mdwarf multiplicity myown}, note = {cite arxiv:1610.05269Comment: Accepted in ApJ Letters, 13 Sept. 2016 issue}, timestamp = {2016-10-19T17:09:16.000+0200}, title = {Speckle Imaging Excludes Low-Mass Companions Orbiting the Exoplanet Host Star TRAPPIST-1}, url = {http://arxiv.org/abs/1610.05269}, year = 2016 }