activity
20122024
most citedA hot Uranus transiting the nearby M dwarf GJ3470. Detected with HARPS velocimetry. Captured in transit with TRAPPIST photometry

139 citations · 3.7k across the 97 of their papers we have counts for

collaborators
Showing 2021Show all

11 papers · 1 filter

astro-ph.EP2021★ 26 cited

The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter

T. Azevedo Silva, O. D. S. Demangeon, S. C. C. Barros +28

Most of the currently known planets are small worlds with radii between that of the Earth and that of Neptune. The characterization of planets in this regime shows a large diversit…

astro-ph.EP2021★ 50 cited

The young HD 73583 (TOI-560) planetary system: Two 10-M mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf

O. Barragán, D. J. Armstrong, D. Gandolfi +103

We present the discovery and characterisation of two transiting planets observed by \textit{TESS} in the light curves of the young and bright (V=9.67) star HD73583 (TOI-560). We pe…

astro-ph.EP2021★ 45 cited

TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet

Ares Osborn, David J. Armstrong, Bryson Cale +125

We present the bright (V), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 \pm…

astro-ph.SR2021★ 30 cited

TESS Data for Asteroseismology (T'DA) Stellar Variability Classification Pipeline: Set-Up and Application to the Kepler Q9 Data

Jeroen Audenaert, James S. Kuszlewicz, Rasmus Handberg +16

The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from 27 days to about 1 year of continuous observations.…

astro-ph.EP2021★ 9 cited

TESS and HARPS reveal two sub-Neptunes around TOI 1062

J. F. Otegi, F. Bouchy, R. Helled +46

The Transiting Exoplanet Survey Satellite (\textit{TESS}) mission was designed to perform an all-sky search of planets around bright and nearby stars. Here we report the discovery…

astro-ph.EP2021★ 16 cited

TOI-220 : a warm sub-Neptune discovered by TESS

S. Hoyer, D. Gandolfi, D. J. Armstrong +77

In this paper we report the discovery of TOI-220 , a new sub-Neptune detected by the Transiting Exoplanet Survey Satellite (TESS) and confirmed by radial velocity follow-up obse…

astro-ph.EP2021★ 27 cited

A transit timing variation observed for the long-period extremely low density exoplanet HIP 41378f

Edward M. Bryant, Daniel Bayliss, Alexandre Santerne +47

HIP 41378 f is a temperate planet with period of 542.08 days and an extremely low density of g cm. It transits the bright star HIP 41378…

astro-ph.EP2021★ 11 cited

NGTS 15b, 16b, 17b and 18b: four hot Jupiters from the Next Generation Transit Survey

Rosanna H. Tilbrook, Matthew R. Burleigh, Jean C. Costes +36

We report the discovery of four new hot Jupiters with the Next Generation Transit Survey (NGTS). NGTS-15b, NGTS-16b, NGTS-17b, and NGTS-18b are short-period (d) planets orbiti…

astro-ph.EP2021★ 20 cited

Revisiting the Kepler field with TESS: Improved ephemerides using TESS 2min data

Matthew P. Battley, Michelle Kunimoto, David J. Armstrong +1

Up to date planet ephemerides are becoming increasingly important as exoplanet science moves from detecting exoplanets to characterising their architectures and atmospheres in dept…

astro-ph.EP2021★ 17 cited

A hot mini-Neptune in the radius valley orbiting solar analogue HD 110113

H. P. Osborn, D. J. Armstrong, L. D. Nielsen +53

We report the discovery of HD 110113 b (TOI-755.01), a transiting mini-Neptune exoplanet on a 2.5-day orbit around the solar-analogue HD 110113 (Teff = 5730K). Using TESS photometr…

astro-ph.EP2021★ 18 cited

NGTS-14Ab: a Neptune-sized transiting planet in the desert

A. M. S. Smith, J. S. Acton, D. R. Anderson +35

Context: The sub-Jovian or Neptunian desert is a previously-identified region of parameter space where there is a relative dearth of intermediate-mass planets at short orbital peri…