Gavin Boyle
A5045057252- Stellar, planetary, and galactic studies
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Spacecraft and Cryogenic Technologies
- Gamma-ray bursts and supernovae
- Adaptive optics and wavefront sensing
- Space Exploration and Technology
- Methane Hydrates and Related Phenomena
- Atmospheric Ozone and Climate
- Geophysics and Gravity Measurements
- Planetary Science and Exploration
Cavendish Hospital
2023-2024
Obstech (Chile)
2023-2024
We report the discovery and characterization of three new transiting giant planets orbiting TOI-6628, TOI-3837, TOI-5027 one warm sub-Saturn TOI-2328, whose transits events were detected in light curves Transiting Exoplanet Survey Satellite (TESS) space mission. By combining TESS with ground-based photometric spectroscopic follow-up observations, we confirm planetary nature observed radial velocity variations. TOI-6628 b has a mass 0.74±0.06 M_ radius 0.98 -0.05 R_J orbits metal-rich star...
TOI-2525 is a K-type star with an estimated mass of M = 0.849$_{-0.033}^{+0.024}$ M$_\odot$ and radius R 0.785$_{-0.007}^{+0.007}$ R$_\odot$ observed by the TESS mission in 22 sectors (within 1 39). The light curves yield significant transit events two companions, which show strong timing variations (TTVs) semi-amplitude $\sim$6 hours. We performed TTV dynamical, photo-dynamical curve analysis data, combined radial velocity (RV) measurements from FEROS PFS, we confirmed planetary nature...
We report on the confirmation and follow-up characterization of two long-period transiting substellar companions low-eccentricity orbits around TIC 4672985 TOI-2529, whose transit events were detected by TESS space mission. Ground-based photometric spectroscopic from different facilities, confirmed nature b , a massive gas giant in transition between super-Jupiters brown dwarfs mass regime. From joint analysis we derived following orbital parameters: P = 69.0480 −0.0005 +0.0004 d, M p 12.74...
Abstract High-eccentricity tidal migration predicts the existence of highly eccentric proto hot Jupiters on “tidal circularization track,” meaning that they might eventually become Jupiters, but their migratory journey remains incomplete. Having experienced moderate amounts evolution orbital elements, Jupiter systems can be powerful test beds for underlying mechanisms eccentricity growth. Notably, may used discriminating between variants high-eccentricity migration, each predicting a...
We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single transit events in light curves generated from full frame images Transiting Exoplanet Survey Satellite (TESS). Follow-up radial velocity measurements additional used to determine periods confirm planetary nature candidates. The planets orbit slightly metal-rich late F- early G-type stars. find that TOI 4406b has a mass $M_P$= 0.30 $\pm$...
Abstract The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions exoplanet systems. Given that have likely experienced minimal dynamical disruptions, spin–orbit orientations these inform typical outcomes quiescent planet formation, as well primordial stellar obliquity distribution. However, few measurements been made to constrain We present Rossiter–McLaughlin measurement warm Jupiter TOI-2202 b, obtained using Carnegie Planet Finder...
Abstract We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by TESS space mission confirmed through ground-based photometry radial velocity measurements taken at La Silla observatory with FEROS. TOI-2373 b is a warm Jupiter its host star every ∼13.3 days, one most massive known exoplanet precisely determined mass radius around similar to Sun, an estimated m p = <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Abstract We present the discovery and characterization of a pair warm Jovian-mass exoplanets orbiting Sun-like star TOI-6695, based on Transiting Exoplanet Survey Satellite (TESS) transits precise radial velocity (RV) measurements obtained with FEROS, HARPS, CHIRON, CORALIE, PFS. The transiting exoplanet TOI-6695b has an orbital period ∼80.4 days, radius 0.85 R jup , mass 0.21 M . outer planet minimum 1.45 about 242.4 confidently constrained by Doppler time-series data. TOI-6695 system...
Abstract We constrain the sky-projected obliquities of two low-density hot Neptune planets, HATS-38 b and WASP-139 b, orbiting nearby G K stars using Rossiter–McLaughlin (RM) observations with VLT/ESPRESSO, yielding <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>λ</mml:mi> <mml:mo>=</mml:mo> <mml:mo>−</mml:mo> <mml:msubsup> <mml:mrow> <mml:mn>108</mml:mn> </mml:mrow> <mml:mn>16</mml:mn> <mml:mo>+</mml:mo> <mml:mn>11</mml:mn> </mml:msubsup> </mml:math> deg...
We report on the confirmation and follow-up characterization of two long-period transiting substellar companions low-eccentricity orbits around TIC 4672985 TOI-2529, whose transit events were detected by TESS space mission. Ground-based photometric spectroscopic from different facilities, confirmed nature b, a massive gas giant, in transition between super Jupiters brown dwarfs mass regime. From joint analysis we derived following orbital parameters: P = 69.0480 d, Mp 12.74 Mjup, Rp 1.026...
We constrain the sky-projected obliquities of two low-density hot Neptune planets HATS-38 b and WASP-139 orbiting nearby G K stars using Rossiter-McLaughlin (RM) observations with VLT/ESPRESSO, yielding $\lambda = -108_{-16}^{+11}$ deg $-85.6_{-4.2}^{+7.7}$ deg, respectively. To model RM effect, we use a new publicly available code, \texttt{ironman}, which is capable jointly fitting transit photometry, Keplerian radial velocities, effects. The have residual eccentricities ($e=...
We report the discovery and characterization of three new transiting giant planets orbiting TOI-6628, TOI-3837 TOI-5027, one warm sub-Saturn TOI-2328, whose transits events were detected in lightcurves Transiting Exoplanet Survey Satellite \textbf{(TESS)} space mission. By combining TESS with ground-based photometric spectroscopic follow-up observations we confirm planetary nature observed radial velocity variations. TOI-6628~$b$ has a mass 0.75$\pm$0.06~$M_\mathrm{J}$, radius...
Essential information about the formation and evolution of planetary systems can be found in their architectures -- particular, stellar obliquity ($\psi$) as they serve a signature dynamical evolution. Here, we present ESPRESSO observations Rossiter-Mclaughlin (RM) effect 8 warm gas giants, revealing that independent eccentricities, all them have relatively aligned orbits. Our 5 Jupiters WASP-106 b, WASP-130 TOI-558 TOI-4515 TOI-5027 b sky-projected obliquities $|\lambda|\simeq0-10$ deg...
TOI-2525 is a K-type star with an estimated mass of M = 0.849$_{-0.033}^{+0.024}$ M$_\odot$ and radius R 0.785$_{-0.007}^{+0.007}$ R$_\odot$ observed by the TESS mission in 22 sectors (within 1 39). The light curves yield significant transit events two companions, which show strong timing variations (TTVs) semi-amplitude $\sim$6 hours. We performed TTV dynamical, photo-dynamical curve analysis data, combined radial velocity (RV) measurements from FEROS PFS, we confirmed planetary nature...
We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single transit events in light curves generated from full frame images Transiting Exoplanet Survey Satellite (TESS). Follow-up radial velocity measurements additional used to determine periods confirm planetary nature candidates. The planets orbit slightly metal-rich late F- early G-type stars. find that TOI 4406b has a mass $M_P$= 0.30 $\pm$...
High-eccentricity tidal migration predicts the existence of highly eccentric proto-hot Jupiters on "tidal circularization track," meaning that they might eventually become hot Jupiters, but their migratory journey remains incomplete. Having experienced moderate amounts reprocessing orbital elements, systems can be powerful test beds for underlying mechanisms eccentricity growth. Notably, may used discriminating between variants high-eccentricity migration, each predicting a distinct...
The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions exoplanet systems. Given that have likely experienced minimal dynamical disruptions, spin-orbit orientations these inform typical outcomes quiescent planet formation, as well primordial stellar obliquity distribution. However, few measurements been made to constrain We present Rossiter-McLaughlin measurement warm Jupiter TOI-2202 b, obtained using Carnegie Planet Finder...