output
20152026
most citedA Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy

533 citations

80 papers

astro-ph.EP2026

The Neptunian ridge planet WASP-156 b does not have a polar orbit

M. Lafarga, J. I. Espinoza-Retamal, H. M. Cegla +26

The population of short-period exo-Neptunes is thought to be shaped by an interplay between different dynamical mechanisms, such as orbital migration and tidal effects, and photoev…

astro-ph.EP2024★ 96 cited

Sulphur dioxide in the mid-infrared transmission spectrum of WASP-39b

Diana Powell, Adina D. Feinstein, Elspeth K. H. Lee +70

The recent inference of sulphur dioxide (SO) in the atmosphere of the hot (1100 K), Saturn-mass exoplanet WASP-39b from near-infrared JWST observations suggests that phot…

astro-ph.EP2023★ 19 cited

The SOPHIE search for northern extrasolar planets-XIX. A system including a cold sub-Neptune potentially transiting a V = 6.5 star HD88986

N. Heidari, I. Boisse, N. C. Hara +51

Transiting planets with orbital periods longer than 40 d are extremely rare among the 5000+ planets discovered so far. The lack of discoveries of this population poses a challenge…

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.EP2023★ 145 cited

A broadband thermal emission spectrum of the ultra-hot Jupiter WASP-18b

Louis-Philippe Coulombe, Björn Benneke, Ryan Challener +73

Close-in giant exoplanets with temperatures greater than 2,000 K (''ultra-hot Jupiters'') have been the subject of extensive efforts to determine their atmospheric properties using…

astro-ph.EP2022★ 13 cited

A systematic validation of hot Neptunes in TESS data

Christian Magliano, Giovanni Covone, Richa Dobal +26

We statistically validated a sample of hot Neptune candidates applying a two-step vetting technique using DAVE and TRICERATOPS. We performed a systematic validation of 250 transit-…

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★ 13 cited

A dense mini-Neptune orbiting the bright young star HD 18599

Jose I. Vines, James S. Jenkins, Zaira Berdiñas +23

Very little is known about the young planet population because the detection of small planets orbiting young stars is obscured by the effects of stellar activity and fast rotation…

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…

astro-ph.EP2022★ 23 cited

TOI-2196 b: Rare planet in the hot Neptune desert transiting a G-type star

Carina M. Persson, Iskra Y. Georgieva, Davide Gandolfi +52

Highly irradiated planets in the hot Neptune desert are usually either small (R < 2 Rearth) and rocky or they are gas giants with radii of >1 Rjup. Here, we report on the intermedi…

astro-ph.EP2022★ 29 cited

TOI-836: A super-Earth and mini-Neptune transiting a nearby K-dwarf

Faith Hawthorn, Daniel Bayliss, Thomas G. Wilson +137

We present the discovery of two exoplanets transiting TOI-836 (TIC 440887364) using data from TESS Sector 11 and Sector 38. TOI-836 is a bright ( mag), high proper motion…

astro-ph.EP2022★ 15 cited

The Hot Neptune WASP-166~b with ESPRESSO I: Refining the Planetary Architecture and Stellar Variability

L. Doyle, H. M. Cegla, E. Bryant +24

In this paper, we present high-resolution spectroscopic transit observations from ESPRESSO of the super-Neptune WASP-166~b. In addition to spectroscopic ESPRESSO data, we analyse p…

astro-ph.EP2022★ 38 cited

X-SHYNE: X-shooter spectra of young exoplanet analogs. I. A medium-resolution 0.65-2.5 one-shot spectrum of VHS\,1256-1257 b

Simon Petrus, Gaël Chauvin, Mickaël Bonnefoy +10

We present simultaneous 0.65-2.5 microns medium resolution (3300 < R < 8100) VLT/X-Shooter spectra of the young low-mass (19+/-5MJup) L-T transition object VHS 1256-1257 b, a known…

astro-ph.EP2022★ 29 cited

Two long-period transiting exoplanets on eccentric orbits: NGTS-20 b (TOI-5152 b) and TOI-5153 b

S. Ulmer-Moll, M. Lendl, S. Gill +50

Long-period transiting planets provide the opportunity to better understand the formation and evolution of planetary systems. Their atmospheric properties remain largely unaltered…

astro-ph.EP2022★ 26 cited

Three new brown dwarfs and a massive hot Jupiter revealed by TESS around early-type stars

Psaridi A., Bouchy F., Lendl M. +40

The detection and characterization of exoplanets and brown dwarfs (BDs) around massive AF-type stars is essential to investigate and constrain the impact of stellar mass on planet…

astro-ph.SR2022★ 125 cited

ARIADNE: Measuring accurate and precise stellar parameters through SED fitting

Jose I. Vines, James S. Jenkins

Accurately measuring stellar parameters is a key goal to increase our understanding of the observable universe. However, current methods are limited by many factors, in particular,…

astro-ph.SR2022★ 11 cited

Periodic stellar variability from almost a million NGTS light curves

Joshua T. Briegal, Edward Gillen, Didier Queloz +25

We analyse 829,481 stars from the Next Generation Transit Survey (NGTS) to extract variability periods. We utilise a generalisation of the autocorrelation function (the G-ACF), whi…

astro-ph.EP2022★ 51 cited

Precise radial velocities of giant stars XVI. Planet occurrence rates from the combined analysis of the Lick, EXPRESS, and PPPS giant star surveys

Vera Wolthoff, Sabine Reffert, Andreas Quirrenbach +3

RV surveys of evolved stars allow us to probe a higher stellar mass range compared to main-sequence samples. Differences between the planet populations can be caused by either the…

astro-ph.GA2021★ 136 cited

Normal, Dust-Obscured Galaxies in the Epoch of Reionization

Y. Fudamoto, P. A. Oesch, S. Schouws +26

Over the past decades, rest-frame ultraviolet (UV) observations have provided large samples of UV luminous galaxies at redshift (z) greater than 6, during the so-called epoch of re…

astro-ph.EP2021★ 25 cited

NGTS-19b : A high mass transiting brown dwarf in a 17-day eccentric orbit

Jack S. Acton, Michael R. Goad, Matthew R. Burleigh +34

We present the discovery of NGTS-19b, a high mass transiting brown dwarf discovered by the Next Generation Transit Survey (NGTS). We investigate the system using follow up photomet…

astro-ph.SR2021★ 25 cited

Long-term stellar activity variations and their effect on radial-velocity measurements

Jean C. Costes, Christopher A. Watson, Ernst de Mooij +8

Long-term stellar activity variations can affect the detectability of long-period and Earth-analogue extrasolar planets. We have, for 54 stars, analysed the long-term trend of five…

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.SR2021★ 52 cited

Stellar flares detected with the Next Generation Transit Survey

James A. G. Jackman, Peter J. Wheatley, Jack S. Acton +19

We present the results of a search for stellar flares in the first data release from the Next Generation Transit Survey (NGTS). We have found 610 flares from 339 stars, with spectr…