output
19952026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2020 · astro-ph.EPShow all

87 papers · 2 filters

astro-ph.EP2020★ 47 cited

A highly non-Keplerian protoplanetary disc: Spiral structure in the gas disc of CQ Tau

Lisa Wölfer, Stefano Facchini, Nicolas T. Kurtovic +9

In the past years, high angular resolution observations have revealed that circumstellar discs appear in a variety of shapes with diverse substructures being ubiquitous. This has g…

astro-ph.EP2020★ 64 cited

A medium-resolution spectrum of the exoplanet HIP 65426 b

Simon Petrus, Mickaël Bonnefoy, Gaël Chauvin +18

Medium-resolution integral-field spectrographs (IFS) coupled with adaptive-optics such as Keck/OSIRIS, VLT/MUSE, or SINFONI are appearing as a new avenue for enhancing the detectio…

astro-ph.EP2020★ 67 cited

Size and structures of disks around very low mass stars in the Taurus star-forming region

Nicolas T. Kurtovic, Paola Pinilla, Feng Long +7

We aim to estimate if structures, such as cavities, rings, and gaps, are common in disks around VLMS and to test models of structure formation in these disks. We also aim to compar…

astro-ph.EP2020★ 20 cited

A search for companions via direct imaging in the DSHARP planet-forming disks

Sebastián Jorquera, Laura M. Pérez, Gaël Chauvin +10

The "Disk Substructures at High Angular Resolution Project" (DSHARP) has revealed an abundance and ubiquity of rings and gaps over a large sample of young planet-forming disks, whi…

astro-ph.EP2020★ 93 cited

Investigating the young AU~Mic system with SPIRou: large-scale stellar magnetic field and close-in planet mass

Baptiste Klein, Jean-François Donati, Claire Moutou +12

We present a velocimetric and spectropolarimetric analysis of 27 observations of the 22-Myr M1 star AU Microscopii (Au Mic) collected with the high-resolution (0.98-2.35 …

astro-ph.EP2020★ 24 cited

Irradiation dose affects the composition of organic refractory materials in space: Results from laboratory analogues

R. G. Urso, V. Vuitton, G. Danger +9

Context. Near- and mid-infrared observations have revealed the presence of organic refractory materials in the solar system, in cometary nuclei and on the surface of centaurs, Kuip…

astro-ph.EP2020★ 49 cited

Detection of the hydrogen Balmer lines in the ultra-hot Jupiter WASP-33b

F. Yan, A. Wyttenbach, N. Casasayas-Barris +24

Ultra-hot Jupiters (UHJs) are highly irradiated giant exoplanets with extremely high day-side temperatures, which lead to thermal dissociation of most of the molecular species. It…

astro-ph.EP2020★ 9 cited

ALMA chemical survey of disk-outflow sources in Taurus (ALMA-DOT). IV. Thioformaldehyde (HCS) in protoplanetary disks: spatial distributions and binding energies

C. Codella, L. Podio, A. Garufi +10

Aims: To trace the radial and vertical spatial distribution of H2CS, a key species of the S-bearing chemistry, in protoplanetary disks. To analyse the observed distributions in lig…

astro-ph.EP2020★ 40 cited

Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) VI. Non-detection of sodium with HARPS on the bloated super-Neptune WASP-127b

J. V. Seidel, M. Lendl, V. Bourrier +17

WASP-127b is one of the puffiest exoplanets found to date, with a mass only Neptune masses, but a radius larger than Jupiter. It is also located at the border of the Neptune…

astro-ph.EP2020★ 27 cited

Water abundance at the surface of C-complex main-belt asteroids

Pierre Beck, Jolantha Eschrig, Sandra Potin +4

Recently published space-based observations of main-belt asteroids with the AKARI telescope provide a full description of the 3 μm band, related to the presence of OH bearing miner…

astro-ph.EP2020★ 23 cited

Visible and near-infrared reflectance of hyperfine and hyperporous particulate surfaces

Robin Sultana, Olivier Poch, Pierre Beck +2

The composition of Solar System surfaces can be inferred through reflectance and emission spectroscopy, by comparing these observations to laboratory measurements and radiative tra…

astro-ph.EP2020★ 7 cited

A smoothed particle hydrodynamics algorithm for multigrain dust with separate sets of particles

Daniel Mentiplay, Daniel J. Price, Christophe Pinte +1

We present a method for simulating the dynamics of a mixture of gas and multiple species of large Stokes number dust grains, typical of evolved protoplanetary discs and debris disc…

astro-ph.EP2020★ 47 cited

Insights into the planetary dynamics of HD 206893 with ALMA

S. Marino, A. Zurlo, V. Faramaz +8

Radial substructure in the form of rings and gaps has been shown to be ubiquitous among protoplanetary discs. This could be the case in exoKuiper belts as well, and evidence for th…

astro-ph.EP2020★ 29 cited

A single-armed spiral in the protoplanetary disk around HD34282 ?

J. de Boer, C. Ginski, G. Chauvin +17

During the evolution of protoplanetary disks into planetary systems we expect to detect signatures that trace mechanisms such as planet-disk interaction. Protoplanetary disks displ…

astro-ph.EP2020★ 26 cited

Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B

K. Ward-Duong, J. Patience, K. Follette +55

We present new near-infrared Gemini Planet Imager (GPI) spectroscopy of HD 206893 B, a substellar companion orbiting within the debris disk of its F5V star. The , , , and…

astro-ph.EP2020★ 29 cited

Detection of CHCN in Titan's Atmosphere

A. E. Thelen, M. A. Cordiner, C. A. Nixon +6

Titan harbors a dense, organic-rich atmosphere primarily composed of N and CH, with lesser amounts of hydrocarbons and nitrogen-bearing species. As a result of high sensiti…

astro-ph.EP2020★ 87 cited

Planetary system LHS 1140 revisited with ESPRESSO and TESS

J. Lillo-Box, P. Figueira, A. Leleu +17

LHS 1140 is an M dwarf known to host two known transiting planets at orbital periods of 3.77 and 24.7 days. The external planet (LHS 1140 b) is a rocky super-Earth that is located…

astro-ph.EP2020★ 30 cited

Dust trapping around Lagrangian points in protoplanetary disks

Matias Montesinos, Juan Garrido-Deutelmoser, Johan Olofsson +5

Trojans are defined as objects that share the orbit of a planet at the stable Lagrangian points and . In the Solar System, these bodies show a broad size distribution ra…

astro-ph.EP2020★ 128 cited

Direct confirmation of the radial-velocity planet Pic c

M. Nowak, S. Lacour, A. -M. Lagrange +90

Methods used to detect giant exoplanets can be broadly divided into two categories: indirect and direct. Indirect methods are more sensitive to planets with a small orbital period,…

astro-ph.EP2020★ 38 cited

A data-driven approach to constraining the atmospheric temperature structure of KELT-9b

L. Fossati, D. Shulyak, A. G. Sreejith +10

Context. Observationally constraining the atmospheric temperature-pressure (TP) profile of exoplanets is an important step forward for improving planetary atmosphere models, furthe…

astro-ph.EP2020★ 30 cited

Non-Keplerian spirals, a gas-pressure dust trap and an eccentric gas cavity in the circumbinary disc around HD 142527

Himanshi Garg, Christophe Pinte, Valentin Christiaens +7

We present ALMA observations of the CO, CO, CO J=2-1 transitions and the 1.3\,mm continuum emission for the circumbinary disc around HD 142527, at an angular r…

astro-ph.EP2020★ 9 cited

Spectral investigation of Ceres analogue mixtures: in-depth analysis of crater central peak material (ccp) on Ceres

A. Galiano, F. Dirri, E. Palomba +3

In order to investigate the causes of different spectral slope in ccps, different grain-sizes of Ceres analogue mixtures were produced, heated to remove absorption of atmospheric w…

astro-ph.EP2020★ 64 cited

Infrared detection of aliphatic organics on a cometary nucleus

A. Raponi, M. Ciarniello, F. Capaccioni +28

The ESA Rosetta mission has acquired unprecedented measurements of comet 67/P-Churyumov-Gerasimenko (hereafter 67P) nucleus surface, whose composition, as determined by in situ and…

astro-ph.EP2020★ 21 cited

Spectral reflectance analysis of type 3 carbonaceous chondrites and search for their asteroidal parent bodies

Jolantha Escrig, Lydie Bonal, Pierre Beck +1

Non-differentiated asteroids are among the most primitive objects in our Solar System, having escaped intense heating mechanisms. To help us understand the information contained in…