<blockquote>
<p>The battle over Gliese 581 and Gliese 667C?</p>
<p>Is there a direction that a majority of the professional community is leaning?</p>
</blockquote>
<p>The <a href="http://exoplanet.eu/team/" rel="nofollow noreferrer">Exoplanets Team</a> maintains the &quot;<a href="http://exoplanet.eu/" rel="nofollow noreferrer">Extrasolar Planets Encyclopaedia</a>&quot; which is updated daily.</p>
<p>The UI is a bit fiddly on a mobile device but the raw data can be downloaded to desktop applications that are able to work with it. Links expire quickly so I can only post 'root URLs'.</p>
<p>If you use the variable <code>star_name=&quot;GJ 667 C&quot;</code> for the search term on the webpage: <a href="http://exoplanet.eu/diagrams/" rel="nofollow noreferrer">http://exoplanet.eu/diagrams/</a> you can create this:</p>
<p><a href="https://i.sstatic.net/fIMX1.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fIMX1.png" alt="Plot of GJ 667 C Planet's Mass and Radius" /></a></p>
<p>Use the search bar at the URL: <a href="http://exoplanet.eu/catalog/" rel="nofollow noreferrer">http://exoplanet.eu/catalog/</a> for this result:</p>
<p><a href="https://i.sstatic.net/FjP6Q.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/FjP6Q.jpg" alt="Catalog of GJ 667 C's Planets" /></a></p>
<p>Wikipedia's information page on the: <a href="https://en.wikipedia.org/wiki/Extrasolar_Planets_Encyclopaedia" rel="nofollow noreferrer">Extrasolar Planets Encyclopaedia</a> website.</p>

CC BY-SA 4.0
2018-06-14T01:09:13.620Z
I checked ADS again today and it still looks like we need better data before there is a consensus for more than 3 planets orbiting GJ 581 and 2 planets orbiting GJ 667C. Other signals may be due to stellar effects.
Jack R. Woods
CC BY-SA 4.0
2018-06-04T15:38:09.893Z
2018-06-04T15:38:09.893Z
2020-06-17T09:47:40.653Z
Rob
<p>In 2014, Robertson et al. made a case that stellar activity is masquerading as planets (<a href="http://adsabs.harvard.edu/abs/2014Sci...345..440R" rel="noreferrer">here</a> and <a href="http://adsabs.harvard.edu/abs/2014ApJ...793L..24R" rel="noreferrer">here</a>) for these well-known systems. In both cases, they claim that the only real planets discovered so far are planets "b" and "c". In 2015, Anglada-Escude et al. questioned the methods of Robertson et al. (<a href="http://adsabs.harvard.edu/abs/2015Sci...347.1080A" rel="noreferrer">here</a>). Also in 2015, Brewer et al. suggested that there is evidence for multiple planets at Gliese 581 <a href="http://adsabs.harvard.edu/abs/2015MNRAS.448.3206B" rel="noreferrer">here</a> (note, I only have access to the abstract - fulltext is <a href="https://arxiv.org/pdf/1501.06952.pdf" rel="noreferrer">here</a>). Is there a direction that a majority of the professional community is leaning?</p>

<exoplanet>
The battle over Gliese 581 and Gliese 667C?
Jack R. Woods
# The battle over Gliese 581 and Gliese 667C?

(Asked by: username_0 on 2015-09-17)

In 2014, Robertson et al. made a case that stellar activity is masquerading as planets ([here](http://adsabs.harvard.edu/abs/2014Sci...345..440R) and [here](http://adsabs.harvard.edu/abs/2014ApJ...793L..24R)) for these well-known systems. In both cases, they claim that the only real planets discovered so far are planets "b" and "c". In 2015, Anglada-Escude et al. questioned the methods of Robertson et al. ([here](http://adsabs.harvard.edu/abs/2015Sci...347.1080A)). Also in 2015, Brewer et al. suggested that there is evidence for multiple planets at Gliese 581 [here](http://adsabs.harvard.edu/abs/2015MNRAS.448.3206B) (note, I only have access to the abstract - fulltext is [here](https://arxiv.org/pdf/1501.06952.pdf)). Is there a direction that a majority of the professional community is leaning?

**Tags:** exoplanet

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## 1 answers

### Answer by username_1 on 2018-06-04. Score: 0

> The battle over Gliese 581 and Gliese 667C?
>
> Is there a direction that a majority of the professional community is leaning?

The [Exoplanets Team](http://exoplanet.eu/team/) maintains the "[Extrasolar Planets Encyclopaedia](http://exoplanet.eu/)" which is updated daily.

The UI is a bit fiddly on a mobile device but the raw data can be downloaded to desktop applications that are able to work with it. Links expire quickly so I can only post 'root URLs'.

If you use the variable `star_name="GJ 667 C"` for the search term on the webpage: <http://exoplanet.eu/diagrams/> you can create this:

[![Plot of GJ 667 C Planet's Mass and Radius](https://i.sstatic.net/fIMX1.png)](https://i.sstatic.net/fIMX1.png)

Use the search bar at the URL: <http://exoplanet.eu/catalog/> for this result:

[![Catalog of GJ 667 C's Planets](https://i.sstatic.net/FjP6Q.jpg)](https://i.sstatic.net/FjP6Q.jpg)

Wikipedia's information page on the: [Extrasolar Planets Encyclopaedia](https://en.wikipedia.org/wiki/Extrasolar_Planets_Encyclopaedia) website.

> **Comments:**
> **username_0**: I checked ADS again today and it still looks like we need better data before there is a consensus for more than 3 planets orbiting GJ 581 and 2 planets orbiting GJ 667C. Other signals may be due to stellar effects.  

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