output
20012026
most citedBAT AGN Spectroscopic Survey - V. X-ray properties of the Swift/BAT 70-month AGN catalog

555 citations

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22 papers · 1 filter

astro-ph.EP2026★ 1 cited

Planetary-Mass Exosatellite Detected Around the Substellar Companion of a Star

Kevin Hoy, Alice Zurlo, Pablo A. Peña R. +10

Despite more than 6000 exoplanets being discovered to date, no satellite orbiting an exoplanet, an exomoon, has ever been confidently detected. While there are some candidates, the…

astro-ph.EP2026

Spin-Orbit Geometry of AU Mic b and c from Back-to-Back Transits Observed Contemporaneously with Magellan PFS, LCOGT, and CHEOPS

Zitao Lin, Gyula M. Szabó, Krzysztof Sz. Zieliński +37

Young planets offer a unique window into the early stages of planetary evolution. AU Mic is one of the nearest (9.8 pc) pre-main sequence stars (~20 Myr), hosting two transiting Ne…

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★ 5 cited

Astrometric exomoon detection by means of optical interferometry

T. O. Winterhalder, A. Mérand, J. Kammerer +12

Context: With no conclusive detection to date, the search for exomoons, satellites of planets orbiting other stars, remains a formidable challenge. Detecting these objects, compili…

astro-ph.EP2025

New Orbital Constraints for YSES 1 b and HR 2562 B from High-Precision Astrometry and Planetary Radial Velocities

Jonathan Roberts, William Thompson, Jason J. Wang +20

We present new VLTI/GRAVITY astrometry and updated orbit fits for the directly imaged companions YSES 1 b and HR 2562 B, substellar objects straddling the planet-brown dwarf bounda…

astro-ph.EP2025★ 7 cited

A High Geometric Albedo for LTT9779b Points Towards a Metal-rich Atmosphere and Silicate Clouds

Suman Saha, James S. Jenkins, Vivien Parmentier +7

Aims: In this work, we aim to confirm the high albedo of the benchmark ultrahot Neptune LTT9779b using 20 secondary eclipse measurements of the planet observed with CHEOPS. In addi…

astro-ph.EP2025★ 10 cited

A closer look at LTT 9779b: The ESPRESSO endeavour to pierce the atmospheric veil

R. Ramírez Reyes, James S. Jenkins, Elyar Sedaghati +9

The proliferation of exoplanet discoveries in exotic environments like the Neptune desert challenges our understanding of planetary atmospheres under intense irradiation. The unexp…

astro-ph.EP2024★ 62 cited

A Benchmark JWST Near-Infrared Spectrum for the Exoplanet WASP-39b

A. L. Carter, E. M. May, N. Espinoza +77

Observing exoplanets through transmission spectroscopy supplies detailed information on their atmospheric composition, physics, and chemistry. Prior to JWST, these observations wer…

astro-ph.EP2022★ 4 cited

Colors of Irregular Satellites of Saturn with DECam

J. Peña, C. Fuentes

We report g-r and r-i new colors for 21 Saturn Irregular Satellites, among them, 4 previously unreported. This is the highest number of Saturn Irregular satellites reported in a si…

astro-ph.EP2021★ 52 cited

A wide-orbit giant planet in the high-mass b Centauri binary system

Markus Janson, Raffaele Gratton, Laetitia Rodet +24

Planet formation occurs around a wide range of stellar masses and stellar system architectures. An improved understanding of the formation process can be achieved by studying it ac…

astro-ph.EP2021★ 124 cited

Molecules with ALMA at Planet-forming Scales (MAPS) XIV: Revealing disk substructures in multi-wavelength continuum emission

Anibal Sierra, Laura M. Pérez, Ke Zhang +25

Constraining dust properties of planet-forming disks via high angular resolution observations is fundamental to understanding how solids are trapped in substructures and how dust g…

astro-ph.EP2021★ 253 cited

A Circumplanetary Disk Around PDS70c

Myriam Benisty, Jaehan Bae, Stefano Facchini +14

PDS70 is a unique system in which two protoplanets, PDS70b and c, have been discovered within the dust-depleted cavity of their disk, at 22 and 34au respectively, by direct i…

astro-ph.EP2021★ 75 cited

Spiral Arms and a Massive Dust Disk with non-Keplerian Kinematics: Possible Evidence for Gravitational Instability in the Disk of Elias 2-27

T. Paneque-Carreño, L. M. Perez, M. Benisty +16

To determine the origin of the spiral structure observed in the dust continuum emission of Elias 2-27 we analyze multi-wavelength continuum ALMA data with a resolution of 0.2…

astro-ph.EP2020★ 85 cited

An Ultra-Hot Neptune in the Neptune desert

James S. Jenkins, Matías R. Díaz, Nicolás T. Kurtovic +81

About one out of 200 Sun-like stars has a planet with an orbital period shorter than one day: an ultra-short-period planet (Sanchis-ojeda et al. 2014; Winn et al. 2018). All of the…

astro-ph.EP2020★ 41 cited

A multiple planet system of super-Earths orbiting the brightest red dwarf star GJ887

S. V. Jeffers, S. Dreizler, J. R. Barnes +29

The nearest exoplanets to the Sun are our best possibilities for detailed characterization. We report the discovery of a compact multi-planet system of super-Earths orbiting the ne…

astro-ph.EP2019★ 10 cited

A multi-wavelength study of the debris disc around 49 Cet

Nicole Pawellek, Attila Moór, Julien Milli +17

In a multi-wavelength study of thermal emission and scattered light images we analyse the dust properties and structure of the debris disc around the A1-type main sequence star 49~…

astro-ph.EP2019★ 35 cited

The B-Star Exoplanet Abundance Study: a co-moving 16-25 Mjup companion to the young binary system HIP 79098

Markus Janson, Ruben Asensio-Torres, Damien Andre +13

Wide low-mass substellar companions are known to be very rare among low-mass stars, but appear to become increasingly common with increasing stellar mass. However, B-type stars, wh…

astro-ph.EP2017★ 14 cited

Transiting Exoplanet Monitoring Project (TEMP). III. On the Relocation of the Kepler-9~b Transit

Songhu Wang, Dong-Hong Wu, Brett C. Addison +24

The Kepler-9 system harbors three known transiting planets. The system holds significant interest for several reasons. First, the outer two planets exhibit a period ratio that is c…

astro-ph.EP2016★ 40 cited

Magnetic fields in protoplanetary disks: from MHD simulations to ALMA observations

Gesa H. -M. Bertrang, Mario Flock, Sebastian Wolf

Magnetic fields significantly influence the evolution of protoplanetary disks and the formation of planets, following the predictions of numerous magnetohydrodynamic (MHD) simulati…

astro-ph.EP2014★ 26 cited

The curious case of HD41248. A pair of static signals buried behind red-noise

James S. Jenkins, Mikko Tuomi

Gaining a better understanding of the effects of stellar induced radial velocity noise is critical for the future of exoplanet studies, since the discovery of the lowest-mass plane…

astro-ph.EP2014★ 100 cited

The properties of planets around giant stars

M. I. Jones, J. S. Jenkins, P. Bluhm +2

Context: More than 50 exoplanets have been found around giant stars, revealing different properties when compared to planets orbiting solar-type stars. In particular, they are Supe…

astro-ph.EP2011

Study of Planetary Systems around Giant Stars

M. I. Jones, J. S. Jenkins, P. Rojo

More than 450 exoplanets have currently been detected, most of them by the radial velocity (RV) technique. While the majority of exoplanets have been found around main-sequence (MS…