Planetary system around metal-poor star HIP 11952

Closed.

http://twiki.oats.inaf.it/twiki/pub/GAPS/HIP11952/hip11952v1.pdf

It seems an incomplete research paper through, if not in progress.

Now on arXiv.
http://arxiv.org/abs/1302.3093

Strange as I can understand that in case of low mass planets (gj 581 g,f) it could happen but 2 jovian planets was announced and now disproven

Moreover I don't get why only HIP 11952 c has been removed by EPE list...

How is that website working? :?

tommi59 wrote:

Strange as I can understand that in case of low mass planets (gj 581 g,f) it could happen but 2 jovian planets was announced and now disproven

The paper mentions that the RV errors are quite high due to the star's relatively hot temperature and lack of metals. Maybe that had something to do with it?

I can't say I'm surprised. I know it's wholly unscientific, but looking at the RV plot for HIP 11952 in the original discovery paper, the fit didn't seem too convincing to me. It kinda looked as if it wasn't statistically significant.

Anyone tried the original velocity set in Systemic?

I can't get Systemic to work anymore :\

Sirius_Alpha wrote:

I can't get Systemic to work anymore :\

Neither can I. The old version worked perfectly: the newest one crashes at once.

Maybe all the recent Java security updates broke it?

Lazarus wrote:

Maybe all the recent Java security updates broke it?

I don't know, but several system setting have changed, like no more defaultsystem.dat file, you can load only one system as systemic opens.

I remember having to do that specifically myself before I was just entirely unable to run it. I've got an issue where trying to run the file just opens the jar file to reveal the component classes and files instead of running it.

I wonder how much effort would be required to build a new Systemic-like programme.

Was considering doing something like that to teach myself OpenCL...

From A&A forthcoming:

Reanalysis of the FEROS observations of HIP 11952
A. Müller, V. Roccatagliata, Th. Henning, D. Fedele, A. Pasquali, E. Caffau, M. V. Rodríguez-Ledesma, M. Mohler-Fischer, U. Seemann, R. J. Klement
Received: 18 March 2013 / Accepted: 04 June 2013
DOI: http://dx.doi.org/10.1051/0004-6361/201321497

It's now up. Apparently there was a problem with the barycentric correction in the FEROS-DRS pipeline. After fixing the barycentric correction the FEROS results show no evidence for the planets.

Now on arXiv.
http://arxiv.org/abs/1307.5072