HATSouth Results

Page 2 of 2 Previous  1, 2

Go down

Re: HATSouth Results

Post by Sirius_Alpha on 12th December 2017, 9:26 pm

HATS-50b through HATS-53b: four transiting hot Jupiters orbiting G-type stars discovered by the HATSouth survey
https://arxiv.org/abs/1712.04324

We report the discovery of four close-in transiting exoplanets, HATS-50 through HATS-53, discovered using the HATSouth three-continent network of homogeneous and automated telescopes. These new exoplanets belong to the class of hot Jupiters and orbit G-type dwarf stars, with brightness in the range V=12.5-14.0 mag. While HATS-53 has many physical characteristics similar to the Sun, the other three stars appear to be metal rich, larger and more massive. Three of the new exoplanets, namely HATS-50, HATS-51 and HATS-53, have low density and similar orbital period. Instead, HATS-52 is more dense and has a shorter orbital period. It also receives an intensive radiation from its parent star and, consequently, presents a high equilibrium temperature. HATS-50 shows a marginal additional transit feature consistent with an ultra-short period hot super Neptune, which will be able to be confirmed with TESS photometry.

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3662
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: HATSouth Results

Post by Sirius_Alpha on 5th April 2018, 8:48 pm

HATS-39b, HATS-40b, HATS-41b, and HATS-42b: Three Inflated Hot Jupiters and a Super-Jupiter Transiting F Stars
https://arxiv.org/abs/1804.01623

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3662
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: HATSouth Results

Post by Sirius_Alpha on 15th May 2018, 9:41 pm

HATS-59b,c: A Transiting Hot Jupiter and a Cold Massive Giant Planet Around a Sun-Like Star
https://arxiv.org/abs/1805.05925

We report the first discovery of a multi-planetary system by the HATSouth network, HATS-59b,c, a planetary system with an inner transiting hot Jupiter and an outer cold massive giant planet, which was detected via radial velocity. The inner transiting planet, HATS-59b, is on an eccentric orbit with e=0.1290.049, orbiting a V=13.9510.030 mag solar-like star (M∗=1.0380.039M⊙, and R∗=1.0360.067R⊙) with a period of 5.4160770.000017 days. The outer companion, HATS-59c is on a circular orbit with msini=12.81.1MJ, and a period of 142214 days. The inner planet has a mass of 0.8060.069MJ and a radius of 1.1260.077MJ, yielding a density of 0.700.16gcm−3. Unlike most of the planetary systems that include only a single hot Jupiter, HATS-59b,c includes, in addition to the transiting hot Jupiter, a massive outer companion. The architecture of this system is valuable for understanding planet migration.

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3662
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: HATSouth Results

Post by Lazarus on 16th May 2018, 5:47 pm

Interesting that HATS-59c is on a near-circular orbit. Not sure how well that fits with the idea that it scattered HATS-59b into the inner system, although the mass ratio is quite high.
avatar
Lazarus
dF star
dF star

Number of posts : 2979
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: HATSouth Results

Post by Sponsored content


Sponsored content


Back to top Go down

Page 2 of 2 Previous  1, 2

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum