RedDots

...searching for nearest red Earths to the Sun. Want to be involved? Join us: access data & participate in science discussions! #RedDots

[RedDots @RedDotsSpace]

Nothing to do? #FF @BarnardsStar_b, the official twitter account of a whole new world!

[RedDots @RedDotsSpace]

The paper describing the results is still undergoing revision, but you can check the current version in https://t.co/PyqxM1ZbAo comments welcome! Once accepted, we will tell you a bit more... spoiler alert! one of the planet candidates is within the habitable zone of the star ;)

[RedDots @RedDotsSpace]

Combining @RedDots data with public data from the programme "Bright M-Dwarf Systems with Transiting Planets" https://t.co/FSkIoyIvPW) reveals the presence of a compact planetary system with -at least- three terrestrial planet candidates!!!

[RedDots @RedDotsSpace]

#GJ1061 is a red dwarf, and the 20th nearest star-system to the Sun. It was one of the targets of the #reddots2 campaign. Compared to #proximacentauri #gj1061 is a more quiet star

[RedDots @RedDotsSpace]

Do you know what is #GJ1061 ? If you don't, you will hear about it soon ;)

[Carmenes Exoplanets @CARMENES_exopl]

Barnard's Star b #1 of the list “The Most Fascinating Exoplanets of 2018”.
“A candidate super-Earth planet orbiting near the snow line of Barnard’s star”
(Ribas, et al. 2018, Nature 563, 365, https://t.co/e0Kk1coc9d) #barnardsstar @BarnardsStar_b @CARMENES_exopl @RedDotsSpace

[Barnard's Star b @BarnardsStar_b]

📣📣 Paper finally sent to review! See the evidence for VERY slow rotation and activity cycle of Barnard's star by Borja Toledo & collaborators! Featuring 20+ yrs of spectroscopic data and hundreds of contributed @AAVSO observations from pro-am astronomers around the globe! 📣📣

[Barnard's Star b @BarnardsStar_b]

See 'Prospects for detecting the astrometric signature of Barnard's Star b' by Lev Tal-Or & co (submitted to A&A) via https://t.co/AsQWZm4WU1 A bit technical, but punchline is : it will be hard enve with a perfectly working @ESAGaia! why? it is about the orbital inclination...

[Barnard's Star b @BarnardsStar_b]

We have been asked wether @ESAGaia could detect @BarnardsStar_b using the astrometric method. Gaia is operating and producing data, so what can we expect? Our colleagues have been thinking about it for a while and have written a paper!

[RedDots @RedDotsSpace]

IMPORTANT remark 📣📣: The planet paper @nature has a companion paper with a detailed analysis of the photometry incl. our collaborators from @AAVSO & others. We couldn't fit it all in one paper, and preparing it has taken a bit longer. We hope for a release soon as well.

[RedDots @RedDotsSpace]

Indeed! Terrible mistake. #Ross128 is the awesome and quite very nearby red dwarf with a small temperate planet called #Ross128b. Mental short circuit in the heat of the moment. The RedDots star is #Ross154 (or #GJ729 to friends & family)

[RedDots @RedDotsSpace]

Both stars show significant radial motion. #Ross128 is a ferocious red dwarf that rotates very fast,and it provides a wonderful firework display in terms of flares, spots and rotation. It is the 8th closest star to the Sun but, we will not talk about #Ross128 today! 7/20

[RedDots @RedDotsSpace]

Indeed! Terrible mistake. #Ross128 is the awesome and quite very nearby red dwarf with a small temperate planet. Mental short circuit in the heat of the moment. The RedDots star is #Ross154 (or GJ 729 to friends & family)

[RedDots @RedDotsSpace]

In 2017, Red Dots monitored #ProximaCentauri again for additional planets, and expanded the search to two other very nearby stars : #Ross128 and #BarnardsStar. A lot of analysis is underway an all these stars. 3/20

[Barnard's Star b @BarnardsStar_b]

You like the artists impressions? This is how the actual evidence of Barnard's Star b existence look like. A ton of points following a subtle wobble of ~4.5 km/h every 230 days...

[RedDots @RedDotsSpace]

We created an 'official' account for Barnard's star b @BarnardsStar_b where you can follow the updates and new findings on this awesome planet. Even some expected skepticism about the detection after our colleagues review the huge amounts of data available ;)

[RedDots @RedDotsSpace]

See release article based on @IEEC_Space one in https://t.co/7wIUqLN5yy website. Enjoy!

https://t.co/Qj9IVxzAJq

[RedDots @RedDotsSpace]

Paper available tomorrow @Nature . Get awesome videos and artistic impressions from our partner institutions and friends including @IEEC_Space @ESO @QMUL @CARMENES_exopl and many more. 20/20

[RedDots @RedDotsSpace]

Welcome to the new world @Barnardsstarb!
https://t.co/48soInyUW5 via @YouTube
thx @IEEC_Space for the video!
19/20

[RedDots @RedDotsSpace]

There are some caveats on the detection (read the paper! correlated noise, Gaussian process, and all the good stuff), but we think that chances of not being there are rather small. 18/20

[RedDots @RedDotsSpace]

Barnard’s star luminosity is only 3% that of the Sun. At its orbital distance of 40% of an Astronomical Unit (that is roughly the orbital of Mercury), the temperature at its upper atmosphere must be around -150 C… 17/20

[RedDots @RedDotsSpace]

@BarnardsStarb is more massive than Earth, but doesn’t really tell us much of how it may look like. It could be anything from a large ‘mostly’ rocky world, or a mini-Neptune. One thing is for certain, it must be a pretty gloomy place. 16/20