| SuperWASP Results | |
|
+13Szaniu pochimax tommi59 jyril atomic7732 Daniel lodp Phill Borislav marasama Lazarus Edasich Sirius_Alpha 17 posters |
|
Author | Message |
---|
Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: SuperWASP Results 15th April 2016, 4:06 am | |
| WASP-142 b was the one said to have been discovered by a student. | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 4th July 2016, 8:52 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Shellface Neptune-Mass
Number of posts : 283 Location : g2 17.∞ 997 t Registration date : 2013-02-14
| Subject: Re: SuperWASP Results 5th July 2016, 11:33 am | |
| In the K2 proposal including WASP-118, WASP-107 is also described: - Quote :
- WASP-107b is a warm Saturn in a 5.7-day orbit around a K6 star…
- Quote :
- With a mass 2.2 times that of Neptune and 0.40 times that of Saturn, but a radius 0.94 times that of Jupiter, WASP-107b is in the transition region between ice giants and gas giants. This sets a lower limit on the planetary mass above which large gaseous envelopes can be accreted and retained by proto-planets on their way to becoming gas giants. WASP-107b will prove useful to planetary formation theory, which faces the challenge of explaining how ice giants avoid the runaway gas accretion that otherwise would have turned them into gas giants.
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 10th July 2016, 8:41 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: SuperWASP Results 11th July 2016, 3:43 am | |
| A parade of SuperWASP planets lately! Yet I don't get why EPE is refusing to update the exoplanet count lately: there are nearly or more than 85-90 confirmed exoplanets missing from Kepler, K2, KELT, HAT-South, WASP, Doppler, imaging and microlensing method as well - the most recently announced included too! | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 27th July 2016, 2:28 am | |
| From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b http://arxiv.org/abs/1607.07859 - Quote :
- We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18Mj and radius 1.35Rj. This is one of the least massive planets discovered by the WASP project. It orbits a bright host star (V = 10.16) of spectral type G5 with a period of 4.17 days.WASP-127b is a low density planet which has an extended atmosphere with a scale height of 2500+/-400 km, making it an ideal candidate for transmission spectroscopy. WASP-136b and WASP-138b are both hot Jupiters with mass and radii of 1.51 Mj and 1.38 Rj, and 1.22 Mj and 1.09 Rj, respectively. WASP-136b is in a 5.22-day orbit around an F9 subgiant star with a mass of 1.41 Msun and a radius of 2.21 Rsun. The discovery of WASP-136b could help constraint the characteristics of the giant planet population around evolved stars. WASP-138b orbits an F7 star with a period of 3.63 days. Its radius agrees with theoretical values from standard models, suggesting the presence of a heavy element core with a mass of 10 Mearth. The discovery of these new planets helps in exploring the diverse compositional range of short-period planets, and will aid our understanding of the physical characteristics of both gas giants and low density planets.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 15th August 2016, 8:30 pm | |
| WASP-86b and WASP-102b: super-dense versus bloated planets http://arxiv.org/abs/1608.04225WASP-86 b is excessively dense, with a composition of > 80% heavy elements. _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 13th December 2016, 9:54 pm | |
| Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems https://arxiv.org/abs/1612.04166 - Quote :
- We report the detection of two new systems containing transiting planets. Both were identified by WASP as worthy transiting planet candidates. Radial-velocity observations quickly verified that the photometric signals were indeed produced by two transiting hot Jupiters. Our observations also show the presence of additional Doppler signals. In addition to short-period hot Jupiters, we find that the WASP-53 and WASP-81 systems also host brown dwarfs, on fairly eccentric orbits with semi-major axes of a few astronomical units. WASP-53c is over 16 MJupsinic and WASP-81c is 57 MJupsinic. The presence of these tight, massive companions restricts theories of how the inner planets were assembled. We propose two alternative interpretations: a formation of the hot Jupiters within the snow line, or the late dynamical arrival of the brown dwarfs after disc-dispersal.
We also attempted to measure the Rossiter--McLaughlin effect for both hot Jupiters. In the case of WASP-81b we fail to detect a signal. For WASP-53b we find that the planet is aligned with respect to the stellar spin axis. In addition we explore the prospect of transit timing variations, and of using Gaia's astrometry to measure the true masses of both brown dwarfs and also their relative inclination with respect to the inner transiting hot Jupiters. _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: SuperWASP Results 14th December 2016, 6:12 am | |
| WASP-53 b and WASP-81 b are finally announced along with additional companions. Great update. | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 15th January 2017, 9:40 pm | |
| The discoveries of WASP-91b, WASP-105b and WASP-107b: two warm Jupiters and a planet in the transition region between ice giants and gas giants https://arxiv.org/abs/1701.03776 _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 25th April 2017, 8:25 pm | |
| WASP-167b/KELT-13b: Joint discovery of a hot Jupiter transiting a rapidly-rotating F1V star https://arxiv.org/abs/1704.07771 - Quote :
- We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting hot Jupiter with a 2.02-d orbit around a V = 10.5, F1V star with [Fe/H] = 0.1 ± 0.1. The 1.5 RJup planet was confirmed by Doppler tomography of the stellar line profiles during transit. We place a limit of < 8 MJup on its mass. The planet is in a retrograde orbit with a sky-projected spin-orbit angle of λ=−165∘±5∘. This is in agreement with the known tendency for orbits around hotter stars to be more likely to be misaligned. WASP-167/KELT-13 is one of the few systems where the stellar rotation period is less than the planetary orbital period. We find evidence of non-radial stellar pulsations in the host star, making it a δ-Scuti or γ-Dor variable. The similarity to WASP-33, a previously known hot-Jupiter host with pulsations, adds to the suggestion that close-in planets might be able to excite stellar pulsations.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 17th October 2017, 9:37 pm | |
| The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert https://arxiv.org/abs/1710.06321 _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 4th February 2018, 9:47 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: SuperWASP Results 5th February 2018, 5:36 am | |
| It seems there are just us and Nasa Exoplanet Archive updating exoplanet counts. EPE isn't updating anything but Bibliography. | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 6th March 2018, 9:43 pm | |
| New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE and TRAPPIST-South https://arxiv.org/abs/1803.02224 - Quote :
- We report the discovery of eight hot-Jupiter exoplanets from the WASP-South transit survey. WASP-144b has a mass of 0.44 Mj, a radius of 0.85 Rj, and is in a 2.27-d orbit around a V = 12.9, K2 star which shows a 21-d rotational modulation. WASP-145Ab is a 0.89 Mj planet in a 1.77-d orbit with a grazing transit, which means that the planetary radius is not well constrained. The host is a V = 11.5, K2 star with a companion 5 arcsecs away and 1.4 mags fainter. WASP-158b is a relatively massive planet at 2.8 Mj with a radius of 1.1 Rj and a 3.66-d orbit. It transits a V = 12.1, F6 star. WASP-159b is a bloated hot Jupiter (1.4 Rj and 0.55 Mj) in a 3.8-d orbit around a V = 12.9, F9 star. WASP-162b is a massive planet in a relatively long and highly eccentric orbit (5.2 Mj, P = 9.6 d, e = 0.43). It transits a V = 12.2, K0 star. WASP-168b is a bloated hot Jupiter (0.42 Mj, 1.5 Rj) in a 4.15-d orbit with a grazing transit. The host is a V = 12.1, F9 star. WASP-172b is a bloated hot Jupiter (0.5 Mj; 1.6 Rj) in a 5.48-d orbit around a V = 11.0, F1 star. It is likely to be the best planet of those reported here for atmospheric characterisation. WASP-173Ab is a massive planet (3.7 Mj) with a 1.2 Rj radius in a circular orbit with a period of 1.39 d. The host is a V = 11.3, G3 star, being the brighter component of the double-star system WDS23366-3437, with a companion 6 arcsecs away and 0.8 mags fainter. One of the two stars shows a rotational modulation of 7.9 d.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Edasich dK star
Number of posts : 2295 Location : Tau Ceti g - Mid Latitudes Registration date : 2008-06-02
| Subject: Re: SuperWASP Results 7th March 2018, 5:51 am | |
| Some new transiting exoplanets in "scarcely populated" sky fields, Caelum and Crater. | |
|
| |
Lazarus dF star
Number of posts : 3337 Registration date : 2008-06-12
| Subject: Re: SuperWASP Results 19th March 2018, 4:15 pm | |
| Extending the time baseline of two SuperWASP systems with Hipparcos photometry. McDonald & Kerins, "Pre-discovery transits of the exoplanets WASP-18 b and WASP-33 b from Hipparcos" https://arxiv.org/abs/1803.06187 | |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 17th July 2018, 8:34 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 18th July 2018, 8:57 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 19th July 2018, 8:48 pm | |
| WASP-128b: a transiting brown dwarf in the dynamical-tide regime https://arxiv.org/abs/1807.07557 - Quote :
- Massive companions in close orbits around G dwarfs are thought to undergo rapid orbital decay due to runaway tidal dissipation. We report here the discovery of WASP-128b, a brown dwarf discovered by the WASP survey transiting a G0V host on a 2.2d orbit, where the measured stellar rotation rate places the companion in a regime where tidal interaction is dominated by dynamical tides. Under the assumption of dynamical equilibrium, we derive a value of the stellar tidal quality factor logQ′⋆=6.96±0.19. A combined analysis of ground-based photometry and high-resolution spectroscopy reveals a mass and radius of the host, M⋆=1.16±0.04M⊙, R⋆=1.16±0.02R⊙, and for the companion, Mb=37.5±0.8MJup, Rb=0.94±0.02RJup, placing WASP-128b in the driest parts of the brown dwarf desert, and suggesting a mild inflation for its age. We estimate a remaining lifetime for WASP-128b similar to that of some ultra-short period massive hot Jupiters.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 13th September 2018, 8:45 pm | |
| WASP-189b: an ultra-hot Jupiter transiting the bright A star HR 5599 in a polar orbit https://arxiv.org/abs/1809.04897 - Quote :
- We report the discovery of WASP-189b: an ultra-hot Jupiter in a 2.72-d transiting orbit around the V=6.6 A star WASP-189 (HR 5599). We detected periodic dimmings in the star's lightcurve, first with the WASP-South survey facility then with the TRAPPIST-South telescope. We confirmed that a planet is the cause of those dimmings via line-profile tomography and radial-velocity measurements using the HARPS and CORALIE spectrographs. Those reveal WASP-189b to be an ultra-hot Jupiter (MP = 2.13 ± 0.28 MJup; RP = 1.374 ± 0.082 RJup) in a polar orbit (λ=89.3±1.4∘; Ψ=90.0±5.8∘) around a rapidly rotating A6IV-V star (Teff = 8000 ± 100 K; v∗sini∗ ≈ 100 km\, s−1). We calculate a predicted equilibrium temperature of Teql = 2641 ± 34 K, assuming zero albedo and efficient redistribution, which is the third hottest for the known exoplanets. WASP-189 is the brightest known host of a transiting hot Jupiter and the third-brightest known host of any transiting exoplanet. We note that of the eight hot-Jupiter systems with Teff > 7000 K, seven have strongly misaligned orbits, and two of the three systems with Teff ≥ 8000 K have polar orbits (the third is aligned).
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 20th September 2018, 8:47 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 13th November 2018, 9:39 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 14th November 2018, 9:54 pm | |
| _________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sirius_Alpha Admin
Number of posts : 4320 Location : Earth Registration date : 2008-04-06
| Subject: Re: SuperWASP Results 23rd December 2018, 11:31 pm | |
| The discovery of WASP-134b, WASP-134c, WASP-137b, WASP-143b and WASP-146b: three hot Jupiters and a pair of warm Jupiters orbiting Solar-type stars https://arxiv.org/abs/1812.09264 - Quote :
- We report the discovery by WASP of five planets orbiting moderately bright (V = 11.0-12.9) Solar-type stars. WASP-137b, WASP-143b and WASP-146b are typical hot Jupiters in orbits of 3-4 d and with masses in the range 0.68--1.11 MJup. WASP-134 is a metal-rich ([Fe/H] = +0.40 ± 0.07]) G4 star orbited by two warm Jupiters: WASP-134b (Mpl = 1.41 MJup; P=10.1 d; e=0.15±0.01; Teql = 950 K) and WASP-134c (Mplsini = 0.70 MJup; P=70.0 d; e=0.17±0.09; Teql = 500 K). From observations of the Rossiter-McLaughlin effect of WASP-134b, we find its orbit to be misaligned with the spin of its star (λ=−44±10∘). WASP-134 is a rare example of a system with a short-period giant planet and a nearby giant companion. In-situ formation or disc migration seem more likely explanations for such systems than does high-eccentricity migration.
_________________ Caps Lock: Cruise control for 'Cool'!
| |
|
| |
Sponsored content
| Subject: Re: SuperWASP Results | |
| |
|
| |
| SuperWASP Results | |
|