4565582
doi
10.5281/zenodo.4565582
oai:zenodo.org:4565582
user-coolstars20half
Two new close (sep~3arcsec) and nearby common parallax and proper motion pairs at d~15pc (F1+M4_phot) and d~11pc (M4.5+T1_phot) in Gaia EDR3
Scholz, Ralf-Dieter
Leibniz Institute for Astrophysics Potsdam (AIP)
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
Bimary stars -- Brown dwarfs -- Solar neighbourhood
<p>Among 88 nearby stars at d<20pc with lacking colours but<br>
measured parallaxes in Gaia EDR3 we found two new close<br>
(separations~3arcsec) common parallax and proper motion<br>
(CPPM) companions. The companion of a nearby<br>
(d=14.98pc) F1 star, HD 105452 B, was already imaged<br>
with the Hubble Space Telescope and now confirmed with Gaia.<br>
We classified it photometrically as M4 dwarf.<br>
The other CPPM companion, SCR J1214-2345 B orbits an M4.5<br>
dwarf at d=10.77pc and represents the faintest brown dwarf<br>
discovery with Gaia. It was imaged in the <br>
VISTA Hemisphere Survey and partly detected in the<br>
near-infrared. Our photometric classification of<br>
T1+-3 needs spectroscopic confirmation.</p>
A corresponding short paper was published in RNAAS: https://iopscience.iop.org/article/10.3847/2515-5172/abea23
(see also: https://arxiv.org/abs/2103.00144 )
Zenodo
2021-02-26
info:eu-repo/semantics/conferencePoster
4565581
user-coolstars20half
1615533330.19563
698743
md5:ea35b56a7693f2ca9afccecd74031639
https://zenodo.org/records/4565582/files/ScholzRD_poster_CS2021.pdf
public
10.5281/zenodo.4565581
isVersionOf
doi