F. Faedi
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View article: Detailed spectroscopic and photometric analysis of the remarkable planet-hosting wide binary system HD 202772A/B
Detailed spectroscopic and photometric analysis of the remarkable planet-hosting wide binary system HD 202772A/B Open
We conducted a detailed spectroscopic and photometric characterization of the planet-hosting wide binary HD 202772A/B. No planet has been detected around HD 202772B, whereas HD 202772A, more evolved than its companion and near the end of i…
View article: Discovery of the pre-main-sequence eclipsing binary MML 48
Discovery of the pre-main-sequence eclipsing binary MML 48 Open
Aims. We present the discovery of the eclipsing binary MML 48 , which is a member of Upper Centaurus Lupus, has an associated age of 16 Myr, and is composed of two young, low-mass stars. Methods. We used space- and ground-based observation…
View article: The evolutionary history of GD1400, a white dwarf-brown dwarf binary
The evolutionary history of GD1400, a white dwarf-brown dwarf binary Open
GD1400AB was one of the first known white dwarf$+$brown dwarf binaries, and is the only one of these systems where the white dwarf is a ZZ Ceti pulsator. Here we present both radial velocity measurements and time series photometry, analysi…
View article: The evolutionary history of GD 1400AB, a white dwarf–brown dwarf binary
The evolutionary history of GD 1400AB, a white dwarf–brown dwarf binary Open
GD1400AB was one of the first known white dwarf $+$ brown dwarf binaries and is the only one of these systems where the white dwarf is a ZZ Ceti pulsator. Here, we present both radial velocity measurements and time-series photometry, analy…
View article: Trawling for transits in a sea of noise: A search for exoplanets by analysis of WASP optical light curves and follow-up (SEAWOLF)
Trawling for transits in a sea of noise: A search for exoplanets by analysis of WASP optical light curves and follow-up (SEAWOLF) Open
Studies of transiting Neptune-sized planets orbiting close to nearby bright stars can inform theories of planet formation because mass and radius and therefore mean density can be accurately estimated and compared with interior models. The…
View article: Relative calibration of the LIGO and Virgo detectors using astrophysical events from their third observing run
Relative calibration of the LIGO and Virgo detectors using astrophysical events from their third observing run Open
We explore a method to assess the relative scale of the strain measured in the different detectors of the gravitational-wave (GW) network, using binary black hole (BBH) events detected during the third observing run (O3). The number of suc…
The transiting planetary system WASP-86/KELT-12: TESS provides the casting vote Open
A transiting planetary system was discovered independently by two groups, under the names WASP-86 (Faedi et al. 2016) and KELT-12 (Stevens et al. 2017). The properties of the system determined in these works were very different, most telli…
View article: Assessing the compact-binary merger candidates reported by the MBTA pipeline in the LIGO–Virgo O3 run: probability of astrophysical origin, classification, and associated uncertainties
Assessing the compact-binary merger candidates reported by the MBTA pipeline in the LIGO–Virgo O3 run: probability of astrophysical origin, classification, and associated uncertainties Open
We describe the method used by the multi-band template analysis (MBTA) pipeline to compute the probability of astrophysical origin, p astro , of compact binary coalescence candidates in LIGO–Virgo data from the third observing run (O3). Th…
SuperWASP dispositions and false positive catalogue Open
SuperWASP, the Northern hemisphere WASP observatory, has been observing the skies from La Palma since 2004. In that time, more than 50 planets have been discovered with data contributions from SuperWASP. In the process of validating planet…
View article: The EBLM project
The EBLM project Open
Some M-dwarfs around F-/G-type stars have been measured to be hotter and larger than predicted by stellar evolution models. Inconsistencies between observations and models need to be addressed with more mass, radius, and luminosity measure…
View article: The EBLM Project VI. The mass and radius of five low-mass stars in F+M binaries discovered by the WASP survey
The EBLM Project VI. The mass and radius of five low-mass stars in F+M binaries discovered by the WASP survey Open
Some M-dwarfs around F-/G-type stars have been measured to be hotter and larger than predicted by stellar evolution models. Inconsistencies between observations and models need addressing with more mass, radius and luminosity measurements …
The EBLM Project V. Physical properties of ten fully convective, very-low-mass stars Open
Measurements of the physical properties of stars at the lower end of the main sequence are scarce. In this context we report masses, radii and surface gravities of ten very-low-mass stars in eclipsing binary systems, with orbital periods o…
View article: Fundamental properties of the pre-main sequence eclipsing stars of MML 53 and the mass of the tertiary
Fundamental properties of the pre-main sequence eclipsing stars of MML 53 and the mass of the tertiary Open
We present the most comprehensive analysis to date of the Upper Centaurus Lupus eclipsing binary MML 53 (with P EB = 2.097892 d), and for the first time, confirm the bound-nature of the third star (in a P 3 ∼ 9 yr orbit) by constraining it…
The EBLM Project Open
Measurements of the physical properties of stars at the lower end of the main sequence are scarce. In this context we report masses, radii and surface gravities of ten very-low-mass stars in eclipsing binary systems, with orbital periods o…
HD 219666 b: a hot-Neptune from TESS Sector 1 Open
We report on the confirmation and mass determination of a transiting planet orbiting the old and inactive G7 dwarf star HD 219666 ( M ⋆ = 0.92 ± 0.03 M ⊙ , R ⋆ = 1.03 ± 0.03 R ⊙ , τ ⋆ = 10 ± 2 Gyr). With a mass of M b = 16.6 ± 1.3 M ⊕ , a …
View article: Fundamental properties of the pre-main sequence eclipsing stars of MML 53 and the mass of the tertiary
Fundamental properties of the pre-main sequence eclipsing stars of MML 53 and the mass of the tertiary Open
We present the most comprehensive analysis to date of the Upper Centaurus Lupus eclipsing binary MML 53 (with P EB = 2.097892 d), and for the first time, confirm the bound-nature of the third star (in a P 3 ∼ 9 yr orbit) by constraining it…
K2-265 b: a transiting rocky super-Earth Open
\nWe report the discovery of the super-Earth K2-265 b detected with K2 photometry. The planet orbits a bright (Vmag = 11.1) star of spectral type G8V with a period of 2.37 days. We obtained high-precision follow-up radial velocity measurem…
Machine-learning approaches to exoplanet transit detection and candidate validation in wide-field ground-based surveys Open
Since the start of the Wide-angle Search for Planets (WASP) program, more than 160 transiting exoplanets have been discovered in the WASP data. In the past, possible transit-like events identified by the WASP pipeline have been vetted by h…
Spin-Orbit Alignment Of Planetary Systems (Soaps): The Case Of 64 Kepler Planets And Planet Candidates Open
The obliquity is the physical property that can be used to probe the history of formation and evolution of planetary systems describing their current orbital configuration. We study the exoplanetary architectures based on obliquity measure…
The Next Generation Transit Survey (NGTS) Open
We describe the Next Generation Transit Survey (NGTS), which is a ground-based project searching for transiting exoplanets orbiting bright stars. NGTS builds on the legacy of previous surveys, most notably WASP, and is designed to achieve …
NGTS-1b: a hot Jupiter transiting an M-dwarf Open
We present the discovery of NGTS-1b, a hot Jupiter transiting an early M-dwarf host (Teff,* = $3916\, ^{+71}_{-63}$ K) in a P = 2.647 d orbit discovered as part of the Next Generation Transit Survey (NGTS). The planet has a mass of $0.812\…
The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert Open
To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets' mass and radius with a good precision is essential. In this paper, we report the discovery of three transiting exoplanets by the…
Precise masses for the transiting planetary system HD 106315 with HARPS Open
Context. The multi-planetary system HD 106315 was recently found in K2 data. The planets have periods of P_b ~ 9.55 and P_c ~ 21.06 days, and radii of r_b = 2.44 ± 0.17 R⊕ and r_c = 4.35 ± 0.23 R⊕. The brightness of the host star (V = 9.0 …
The EBLM Project Open
We present 2271 radial velocity measurements taken on 118 single-line binary\nstars, taken over eight years with the CORALIE spectrograph. The binaries\nconsist of F/G/K primaries and M-dwarf secondaries. They were initially\ndiscovered ph…
The EBLM Project IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot-Jupiters Open
We present 2271 radial velocity measurements taken on 118 single-line binary stars, taken over eight years with the CORALIE spectrograph. The binaries consist of F/G/K primaries and M-dwarf secondaries. They were initially discovered photo…
The EBLM project Open
We report the discovery of an eclipsing binary system with mass-ratio q ∼ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light curves with the Euler…
The EBLM project III. A Saturn-size low-mass star at the hydrogen-burning limit Open
We report the discovery of an eclipsing binary system with mass-ratio q $\sim$ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light curves with the …
The Homogeneous Study of Transiting Systems (HoSTS) – II. The influence of the line list on stellar parameters Open
The use of high-resolution, high signal-to-noise stellar spectra is essential in order to determine the most accurate and precise stellar atmospheric parameters via spectroscopy. This is particularly important for determining the fundament…
From dense hot Jupiter to low-density Neptune: The discovery of WASP-127b, WASP-136b, and WASP-138b Open
We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18±0.02 MJ and radius 1.37±0.04 RJ. This is one of the least massive planets discovered by the WASP project. It …