activity
20102026
most citedSix transiting planets and a chain of Laplace resonances in TOI-178

195 citations · 1.5k across the 66 of their papers we have counts for

collaborators

68 papers

astro-ph.EP2026

NGTS clusters survey - VII. An Enigmatic Short-Period Circumsecondary Disk Candidate in Orion

Niamh Mallaghan, Ernst J. W. de Mooij, Christopher A. Watson +31

Young stellar systems provide key insights into the processes governing star/planet formation, often exhibiting complex and evolving photometric variability. In this paper, we pres…

astro-ph.EP2026

The Longest-period Young Transiting Exoplanets. A Duo of Puffy Giants inside a Debris Disk

Carlos del Burgo, Alejandro Suárez Mascareño, Ana Heras Pastor +35

We identify two large-radius planets around the F-type star HD 114082 as the longest-period young transiting exoplanets known. From the first transit, detected by NASA's Transiting…

astro-ph.IM2026

High-Precision Photometry with a scientific CMOS Camera: II On-Sky Testing of the Marana camera at the NGTS facility

Ioannis Apergis, Daniel Bayliss, Paul Chote +24

Modern scientific CMOS cameras offer very fast readout speeds and low read noise. In this study, we evaluate the performance of the Andor Marana CMOS camera through on-sky testing…

astro-ph.EP2026

Two warm sub-Saturn mass planets identified from the TESS Full Frame Images

Felipe I. Rojas, Rafael Brahm, Andrés Jordán +47

Context. Characterization of warm giants is crucial to constrain giant planet formation and evolution. Measuring the mass and radius of these planets, combined with their moderated…

astro-ph.EP2026★ 2 cited

TIC-65910228 b / NGTS-38 b, a 180 day transiting warm super-Jupiter

Toby Rodel, Solène Ulmer-Moll, Samuel Gill +63

We present the discovery of TIC-65910228 b / NGTS-38 b, a giant exoplanet with a radius of R and a mass of M on a long-…

astro-ph.EP2026★ 1 cited

Mass estimates of the young TOI-451 transiting planets: Multidimensional Gaussian Process on stellar spectroscopic and photometric signals

Oscar Barragán, Manuel Mallorquín, Jorge Fernández-Fernández +30

The young TOI-451 planetary system, aged 125 Myr, provides a unique opportunity to test theories of planetary internal structures and atmospheric mass loss through examination of i…

astro-ph.EP2025

NGTS-11 c: a transiting Neptune-mass planet interior to the warm Saturn NGTS-11 b

David R. Anderson, Jose I. Vines, Katharine Hesse +56

We report the discovery of NGTS-11 c, a transiting warm Neptune ( d; ; ), in an…

astro-ph.EP2025★ 3 cited

Detection and characterisation of a 106-day transiting Jupiter : TOI-2449 b / NGTS-36 b

S. Ulmer-Moll, S. Gill, R. Brahm +64

Only a handful of transiting giant exoplanets with orbital periods longer than 100 days are known. These warm exoplanets are valuable objects as their radius and mass can be measur…

astro-ph.EP2024★ 10 cited

TOI-4504: Exceptionally large Transit Timing Variations induced by two resonant warm gas giants in a three planet system

Michaela Vítková, Rafael Brahm, Trifon Trifonov +24

We present a joint analysis of TTVs and Doppler data for the transiting exoplanet system TOI-4504. TOI-4504 c is a warm Jupiter-mass planet that exhibits the largest known transit…

astro-ph.EP2024

NGTS-33b: A Young Super-Jupiter Hosted by a Fast Rotating Massive Hot Star

Douglas R. Alves, James S. Jenkins, Jose I. Vines +22

In the last few decades planet search surveys have been focusing on solar type stars, and only recently the high-mass regimes. This is mostly due to challenges arising from the lac…

astro-ph.EP2024

TOI-2490b- The most eccentric brown dwarf transiting in the brown dwarf desert

Beth A. Henderson, Sarah L. Casewell, Andrés Jordán +40

We report the discovery of the most eccentric transiting brown dwarf in the brown dwarf desert, TOI02490b. The brown dwarf desert is the lack of brown dwarfs around main sequence s…

astro-ph.EP2024★ 10 cited

Photo-dynamical characterisation of the TOI-178 resonant chain

A. Leleu, J. -B. Delisle, L. Delrez +104

The TOI-178 system consists of a nearby late K-dwarf transited by six planets in the super-Earth to mini-Neptune regime, with radii ranging from 1.2 to 2.9 earth radius and orbital…

astro-ph.EP2024★ 1 cited

TOI-2447 b / NGTS-29 b: a 69-day Saturn around a Solar analogue

Samuel Gill, Daniel Bayliss, Solène Ulmer-Moll +63

Discovering transiting exoplanets with relatively long orbital periods (10 days) is crucial to facilitate the study of cool exoplanet atmospheres () and to u…

astro-ph.EP2024★ 2 cited

Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data

Sean M. O'Brien, Megan E. Schwamb, Samuel Gill +35

We present the results from the first two years of the Planet Hunters NGTS citizen science project, which searches for transiting planet candidates in data from the Next Generation…

astro-ph.EP2024★ 1 cited

NGTS-30 b/TOI-4862 b: An 1 Gyr old 98-day transiting warm Jupiter

M. P. Battley, K. A. Collins, S. Ulmer-Moll +63

Long-period transiting exoplanets bridge the gap between the bulk of transit- and Doppler-based exoplanet discoveries, providing key insights into the formation and evolution of pl…

astro-ph.EP2024

NGTS-28Ab: A short period transiting brown dwarf

Beth A. Henderson, Sarah L. Casewell, Michael R. Goad +43

We report the discovery of a brown dwarf orbiting a M1 host star. We first identified the brown dwarf within the Next Generation Transit Survey data, with supporting observations f…

astro-ph.EP2024

A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS

Matias I. Jones, Yared Reinarz, Rafael Brahm +48

We report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose t…

astro-ph.EP2023★ 64 cited

A resonant sextuplet of sub-Neptunes transiting the bright star HD 110067

R. Luque, H. P. Osborn, A. Leleu +149

Planets with radii between that of the Earth and Neptune (hereafter referred to as sub-Neptunes) are found in close-in orbits around more than half of all Sun-like stars. Yet, thei…

astro-ph.EP2023★ 2 cited

TESS Duotransit Candidates from the Southern Ecliptic Hemisphere

Faith Hawthorn, Sam Gill, Daniel Bayliss +20

Discovering transiting exoplanets with long orbital periods allows us to study warm and cool planetary systems with temperatures similar to the planets in our own Solar system. The…

astro-ph.EP2023★ 20 cited

Transit Timing Variations in the three-planet system: TOI-270

Laurel Kaye, Shreyas Vissapragada, Maximilian N. Gunther +69

We present ground and space-based photometric observations of TOI-270 (L231-32), a system of three transiting planets consisting of one super-Earth and two sub-Neptunes discovered…

astro-ph.SR2023★ 8 cited

NGTS clusters survey V: Rotation in the Orion Star-forming Complex

Gareth D. Smith, Edward Gillen, Simon T. Hodgkin +16

We present a study of rotation across 30 square degrees of the Orion Star-forming Complex, following a 200 d photometric monitoring campaign by the Next Generation Transit Su…

astro-ph.EP2023★ 15 cited

WASP-131 b with ESPRESSO I: A bloated sub-Saturn on a polar orbit around a differentially rotating solar-type star

L. Doyle, H. M. Cegla, D. R. Anderson +17

In this paper, we present observations of two high-resolution transit datasets obtained with ESPRESSO of the bloated sub-Saturn planet WASP-131~b. We have simultaneous photometric…

astro-ph.EP2022★ 8 cited

The discovery of three hot Jupiters, NGTS-23b, 24b and 25b, and updated parameters for HATS-54b from the Next Generation Transit Survey

David G. Jackson, Christopher A. Watson, Ernst J. W. de Mooij +35

We report the discovery of three new hot Jupiters with the Next Generation Transit Survey (NGTS) as well as updated parameters for HATS-54b, which was independently discovered by N…

astro-ph.EP2022★ 6 cited

NGTS-21b: An Inflated Super-Jupiter Orbiting a Metal-poor K dwarf

Douglas R. Alves, James S. Jenkins, Jose I. Vines +29

We report the discovery of NGTS-21b, a massive hot Jupiter orbiting a low-mass star as part of the Next Generation Transit Survey (NGTS). The planet has a mass and radius of $2.36…