TYC 8998-760-1 - wide-separation high-mass co-moving imaged companion

The Young Suns Exoplanet Survey: Detection of a wide orbit planetary mass companion to a solar-type Sco-Cen member
https://arxiv.org/abs/1912.04284

Quote :

The Young Suns Exoplanet Survey (YSES) consists of a homogeneous sample of 70 young, solar-mass stars located in the Lower Centaurus-Crux subgroup of the Scorpius-Centaurus association with an average age of 15±3Myr. We report the detection of a co-moving companion around the K3IV star TYC 8998-760-1 (2MASSJ13251211-6456207) that is located at a distance of 94.6±0.3pc using SPHERE/IRDIS on the VLT. Spectroscopic observations with VLT/X-SHOOTER constrain the mass of the star to 1.00±0.02M⊙ and an age of 16.7±1.4Myr. The companion TYC 8998-760-1 b is detected at a projected separation of 1.71'', which implies a projected physical separation of 162au. Photometric measurements ranging from Y to M band provide a mass estimate of 14±3Mjup by comparison to BT-Settl and AMES-dusty isochrones, corresponding to a mass ratio of q=0.013±0.003 with respect to the primary. We rule out additional companions to TYC 8998-760-1 that are more massive than 12Mjup and farther than 12au away from the host. Future polarimetric and spectroscopic observations of this system with ground and space based observatories will facilitate testing of formation and evolution scenarios shaping the architecture of the circumstellar environment around this 'young Sun'.

https://www.eso.org/public/news/eso2011/

First Ever Image of a Multi-Planet System around a Sun-like Star Captured by ESO Telescope

The European Southern Observatory’s Very Large Telescope (ESO’s VLT) has taken the first ever image of a young, Sun-like star accompanied by two giant exoplanets. Images of systems with multiple exoplanets are extremely rare, and — until now — astronomers had never directly observed more than one planet orbiting a star similar to the Sun. The observations can help astronomers understand how planets formed and evolved around our own Sun.
(...)
The two gas giants orbit their host star at distances of 160 and about 320 times the Earth-Sun distance. This places these planets much further away from their star than Jupiter or Saturn, also two gas giants, are from the Sun; they lie at only 5 and 10 times the Earth-Sun distance, respectively. The team also found the two exoplanets are much heavier than the ones in our Solar System, the inner planet having 14 times Jupiter’s mass and the outer one six times.

Bohn’s team imaged this system during their search for young, giant planets around stars like our Sun but far younger. The star TYC 8998-760-1 is just 17 million years old and located in the Southern constellation of Musca (The Fly). Bohn describes it as a “very young version of our own Sun.”

The paper :

https://www.eso.org/public/archives/releases/sciencepapers/eso2011/eso2011a.pdf
Two directly-imaged, wide-orbit giant planets around the young, solar analogue TYC 8998-760-1

Well, it's going to be a while before we can get this system's equivalent of the HR 8799 movie.

It's going to be interesting to see what the various planet-formation models make of this system.

Now on arXiv:

Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1
https://arxiv.org/abs/2007.10991

I'm posting here since the paper's author is the same (Alexander J. Bohn) and the finding similar. Otherwise feel free to split a distinct topic: a new imaged planet around a young star from Southern Celestial Hemisphere.

http://exoplanet.eu/catalog/yses_2_b/

Among forthcoming papers in A&A

Quote :

Discovery of a directly imaged planet to the young solar analog YSES 2
2021 BOHN A., GINSKI C., KENWORTHY M., MAMAJEK E., PECAUT M et al.
Astron. & Astrophys., in press
paper

Moreover I guess TYC 8998-760-1 should be "YSES 1" being a discovery from the Young Suns Exoplanet Survey.