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.
Description
Speckle Imaging Excludes Low-Mass Companions Orbiting the Exoplanet Host
Star TRAPPIST-1
%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
}