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19952026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

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1,023 papers · 1 filter

astro-ph.EP2026

VLTI/MATISSE observations of the hot dust around Pictoris: Observing faint objects with MATISSE

P. Priolet, J. -C. Augereau, J. Milli +32

Context: Hot exozodiacal dust has been detected around approximately 20% of nearby main-sequence stars, indicating that it is a common feature of extrasolar planetary systems. Howe…

astro-ph.EP2026

Probing Exoplanetary Chemistry with Ariel: Scientific Priorities and Observational Strategies

Olivia Venot, Yamila Miguel, Robin Baeyens +30

Over the past two decades, increasingly precise observations have revealed that exoplanet atmospheres are chemically diverse and often far from equilibrium, with processes such as…

astro-ph.EP2026

Upside down: GJ3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS

Y. Carteret, V. Bourrier, L. Parc +57

The angle between stellar spin axis and planetary orbital plane can provide key insights into the formation and dynamical evolution of planetary systems. In particular, this measur…

astro-ph.EP2026★ 1 cited

ASTEP confirmation of a pair of long-period Jupiter-sized planets with extremely low densities transiting TOI-791

Georgina Dransfield, Antoine C. Petit, Amaury H. M. J. Triaud +45

Gas giant planets with periods orbiting Sun-like stars are a relatively uncommon outcome of planetary formation, and key questions about the nature and form…

astro-ph.EP2026

Observing a 542-day transiting giant with large TTVs: The 2025 transit of HIP 41378 f and new constraints on the outer system

Pietro Leonardi, Alexandre Santerne, Luca Borsato +27

Characterizing long-period transiting exoplanets is inherently challenging due to the rarity and long duration of transit events. Yet, these systems provide unique insights into pl…

astro-ph.EP2026

The breaking of cold traps and onset of titanium in ultra-hot Jupiter atmospheres: WASP-189b in context

Stefan Pelletier, Romain Allart, Valentina Vaulato +56

Condensates are ubiquitous to all Solar System planets with significant (10mbar) atmospheres. The same is true for most exoplanets with characterised atmospheres, with even ultr…

astro-ph.EP2026

Next-generation Exo-REM atmospheric models: application to VHS 1256 b to emulate patchy clouds

Alice Radcliffe, Benjamin Charnay, Anne-Marie Lagrange +7

Condensate clouds are a defining feature of brown dwarf and exoplanet atmospheres, producing a broad range of colours on the CMD and giving rise to spectral features such as the di…

astro-ph.EP2026

Destructuring the disk of AB Aurigae: Dynamics and accretion

Anthony Boccaletti, Emmanuel Di Folco, Anne Dutrey +23

In this paper, we present near-IR polarized images of the AB Aur disk at three epochs spanning 3.85 years with SPHERE/IRDIS, as well as Halpha images obtained with SPHERE/ZIMPOL at…

astro-ph.EP2026

Towards Doppler eclipse mapping of hot Jupiters. An observational perspective on WASP-33 b with SPIRou

Vincent Yariv, Xavier Bonfils, Nicolas Cowan +7

In the last decade, ground-based high-resolution spectroscopy (HRS) has emerged as a powerful method to probe exoplanet atmospheres both in transit and thermal emission. With HRS s…

astro-ph.EP2026

The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) XI: Gas-dust interactions and radial offsets between micron and millimetre-sized grains

J. Olofsson, M. R. Jankovic, S. Marino +22

The dust observed in debris disks is the result of a collisional cascade initiated from km-sized parent bodies. Using near-infrared to sub-millimeter observations, we can pr…

astro-ph.EP2026★ 1 cited

Astrochemical Inheritance of Terrestrial Planets Water from Local Wet Silicates

Lise Boitard-Crépeau, Stefano Pantaleone, Cecilia Ceccarelli +3

The delivery of water to the inner Solar System rocky planets, including Earth, remains debated, as standard models assume that they formed from dry grains, inside the snowline of…

astro-ph.EP2026

Exploration of the inner region of the system HD 142527

T. M. H. Tran, M. Langlois, O. Flasseur +6

HD 142527 is a well-studied intermediate-mass T Tauri star surrounded by a transitional disk with a large dust cavity, spiral structures, and an accreting low-mass companion. Despi…

astro-ph.EP2026

ExoplaNeT accRetion mOnitoring sPectroscopic surveY (ENTROPY) III. Optical He I line profiles of the accreting super Jupiter Delorme 1 (AB)b

Gayathri Viswanath, Mickaël Bonnefoy, Catherine Dougados +8

High-resolution spectroscopic observations of helium emission lines provide a powerful probe of accretion geometry in classical T Tauri stars, revealing regions not well traced by…

astro-ph.EP2026

Weighing the mass of LHS 3844 b

Alejandro Hacker, Nicola Astudillo-Defru, Rodrigo F. Díaz +7

Context: LHS 3844 b (TOI-136 b) is a ultra short-period, Earth-size exoplanet detected by TESS. It is one of the most favourable object for atmospheric characterisation and the stu…

astro-ph.EP2026★ 1 cited

The multi-planet system TOI-5624: Four transiting sub-Neptunes with an outer companion revealed by transit-timing variations

A. Bonfanti, D. Gandolfi, P. Leonardi +96

Following the 2022 alert of a TESS object of interest transiting TOI-5624 (a G7 V star 100 pc away), a CHEOPS campaign in 2023 detected four planetary signals at $P_b\approx3…

astro-ph.EP2026★ 3 cited

Super-Earth masses and stellar abundances from NIRPS reveal tentative evidence for water-rich formation around M dwarfs

Drew Weisserman, Nicole Gromek, Ryan Cloutier +98

Tracing the compositional link between terrestrial super-Earths and their host stars provides clues to their dominant formation pathway. By constraining the stellar abundances of r…

astro-ph.EP2026

Panchromatic View of the Frigid Jovian Exoplanet COCONUTS-2 b

Matthieu Ravet, Mickaël Bonnefoy, Gaël Chauvin +24

We use a high signal-to-noise MIRI-LRS spectrum (5.45 - 11 m, R ) of COCONUTS-2~b revealing prominent molecular features of HO, CH and NH. This dataset…

astro-ph.EP2026

Influence of CO versus CH on organic haze formation in atmospheres of diverse terrestrial exoplanets

Sai Wang, Zhengbo Yang, Haixin Li +9

Context. Terrestrial exoplanets are expected to host secondary, high-metallicity atmospheres derived from outgassing of volatiles such as N2, CO2, H2O, CH4, and CO. Photochemical o…

astro-ph.EP2026★ 1 cited

Large Dust Grains and a Possible Dust Trap in the Polar Circumbinary Disc of HD 98800B

Álvaro Ribas, Thomas Lack, Francesco Zagaria +6

HD 98800 is a nearby hierarchical quadruple system comprising two binaries orbiting each other. Surprisingly, despite its 10 Myr age and dynamic environment, the Ba-Bb compo…

astro-ph.EP2026★ 1 cited

TOI-4552 b: A new ultra-short period rocky world revealed by NIRPS and TESS

Avidaan Srivastava, René Doyon, François Bouchy +57

A particularly intriguing subclass of rocky exoplanets are the ultra-short period (USP) worlds that orbit their host stars in less than a day. These planets are particularly rare a…

astro-ph.EP2026

Ortho-Para Chemistry of H2CO in the Protoplanetary Disk TW Hya

M. Gaillard, A. Faure, P. Hily-Blant +4

The spatial distribution of the chemical reservoirs in protoplanetary disks is key to elucidate the composition of planets, especially habitable ones. However, the partitioning of…

astro-ph.EP2026★ 1 cited

exoALMA XX: Tomographic Detection of Embedded Planets in Protoplanetary Disks

Andres F. Izquierdo, Jaehan Bae, Stefano Facchini +32

The exoALMA Large Program has revealed a wealth of substructures in the dust and molecular line emission of several protoplanetary discs, suggesting that planet formation may unfol…

astro-ph.EP2026★ 1 cited

exoALMA XXIII. Estimating Disk and Planet Properties from Dust Morphologies with DBNets2.0

Alessandro Ruzza, Giuseppe Lodato, Giovanni Rosotti +21

The exoALMA large program provided an unprecedented view of the morphology and kinematics of 15 circumstellar disks, offering a biased but homogenous and well-characterized sample…

astro-ph.EP2026★ 3 cited

exoALMA XXI: The Morphology and Dynamics of Vertical Flows

Myriam Benisty, Andres F. Izquierdo, Jochen Stadler +33

Vertical gas flows, such as winds and meridional circulations, are natural outcomes of protoplanetary disk processes and play a critical role in the earliest stages of planet forma…