Search for brown dwarfs: true masses of some planet candidates

Search for brown dwarf companions of stars

Notably the true mass of the planet candidate HD 190228b is 65.7 Jupiter masses (i=4.3 degrees), while HD 43848b comes out at over 100 Jupiter masses, so it is a star.

Similar works have been submitted, but EPE seems ignoring them.

HD 43848 b is still listed at EPE as planet/brown dwarf, as well as SCR J1845-6357 B.

HD 190228b has been dropped into the "unconfirmed" section.

Lazarus wrote:

HD 190228b has been dropped into the "unconfirmed" section.

At least HD 43848 has also moved in same section.

SCR 1845 is yet an intruder...

SCR 1845 b, was it disproven?

Sirius_Alpha wrote:

SCR 1845 b, was it disproven?

It is a brown dwarf companion (45-65 Mj) not a 8 Mj planet. I don't get why EPE keeps listing it between "candidates detected by imaging".

On the other hand Ross 458 C (DT Virginis C) seems to be confirmed as 6 Mj planet at 1.160 AUs. But doesn't appear.

Since as I speak things seem to happen...who knows?

Do you have a reference for the mass of SCR 1845 B?

There are a fair few objects which seem to meet the inclusion criteria for EPE which aren't there. Taking this paper as a reference, it seems that DH Tau B, Oph 1622a and b, CHXR 73b, HD 203030b, FU Tau B and EK 60 B should all be listed on EPE. On the other hand, these objects may be better regarded as very low mass brown dwarfs.

Lazarus wrote:

There are a fair few objects which seem to meet the inclusion criteria for EPE which aren't there. Taking this paper as a reference, it seems that DH Tau B, Oph 1622a and b, CHXR 73b, HD 203030b, FU Tau B and EK 60 B should all be listed on EPE. On the other hand, these objects may be better regarded as very low mass brown dwarfs.

Low mass BDs - HD 203030 b, Oph 1622 a and d, FU Tau B.

True superplanets - CHXR 73b, EK 60 b (yet unpublished!), Ross 458 C (6 Mj!!) and DH Tau B.

Update, Schneider!

You can e-mail him about it if you want lol.

Sirius_Alpha wrote:

You can e-mail him about it if you want lol.

I did it time ago. No answer
I'm serious.

It's now in the unconfirmed category.
http://exoplanet.eu/planet.php?p1=SCR+1845&p2=b

Sirius_Alpha wrote:

It's now in the unconfirmed category.
http://exoplanet.eu/planet.php?p1=SCR+1845&p2=b

So everything gets clearer. Though Corot-3 b's presence is still controverse.

Well CoRoT-3b has a mass below the brown dwarf desert, so planetary nature is a definite possibility. (Still seems to be some uncertainty as to how much of a heavy element core it has though...)

Lazarus wrote:

Well CoRoT-3b has a mass below the brown dwarf desert, so planetary nature is a definite possibility. (Still seems to be some uncertainty as to how much of a heavy element core it has though...)

Oh so? I thought 11-13 Mj were the "thresold" between planets and brown dwarfs, even accounting stellar host's metallicity.