Exoplanets in M67

From A&A forthcoming papers:

Quote :

Three planetary companions around M67 stars
A. Brucalassi, L. Pasquini, R. Saglia, M.T. Ruiz, P. Bonifacio, L. R. Bedin, K. Biazzo, C. Melo, C. Lovis, S. Randich
Received: 01 September 2013 / Accepted: 13 December 2013 DOI: http://dx.doi.org/10.1051/0004-6361/201322584

No preprint so far, but I guess any announcement is related to this poster:

http://www.astro.up.pt/investigacao/conferencias/toe2009/DVD/posters/K.Biazzo.pdf

Interesting stuff there, always wondered what's in M67, given the age and metallicity is quite close to solar.

Looks like the results from this paper's survey:

Search for giant planets in M67 I. Overview (2012)

I expect that the planets are Hot Jupiters, though there might be the odd longer-period companion. It'll also be interesting to see how evolved the planet hosts are.

M67 was previously thought to be the "cradle" of the Sun and Solar System, but a recent paper seems to confute M67 as the original open cluster where the Sun formed in.

Besides M67, what other places have been thought to be the birth place of the Sun?

AFAIK there aren't any other reasonable candidates. I'm not sure there's any particular reason to believe the Sun's birth cluster would have survived this long anyway. Depending on the dynamics it could even be on the other side of the galaxy, where we'd have no hope of finding it.

Published in A&A latest issue. Free access to PDF download for latest articles in current volume:

Three planetary companions around M 67 stars

The all of them are in eccentric epistellar orbit and the third one revolves around a K giant star.

Featuring in EPE catalog:

http://exoplanet.eu/catalog/ybp1194_b/
http://exoplanet.eu/catalog/ybp1514_b/
http://exoplanet.eu/catalog/sand364_b/

SIMBAD links to the relevant stars.
NGC 2682 SAND 364 (Also designated BD+12 1917)
NGC 2682 YBP 1194
NGC 2682 YBP 1514

The paper is also available via the ESO website. They have put up a press release here.

The Hindu is partying like it's 1995.   
First exoplanet found around sun-like star

Sirius_Alpha wrote:

The Hindu is partying like it's 1995.   
First exoplanet found around sun-like star

First exoplanet? Are they serious?

This is why people involved in astronomy or astrophysics should be the ones doing these articles, not any random journalist.

It's a misinterpretation of "solar analogue". No need to be so elitist.

Shellface wrote:

It's a misinterpretation of "solar analogue". No need to be so elitist.

Never. Probably more of a literalist if anything.

Thanks for the explanation.