output
19922026
most citedThe Sloan Digital Sky Survey: Technical Summary

10.4k citations

Showing 2025 · astro-ph.EPShow all

25 papers · 2 filters

astro-ph.EP2025★ 1 cited

The quest for Magrathea planets. II. Orbital stability of exoplanets formed around double white dwarfs

Arianna Nigioni, Diego Turrini, Camilla Danielski +2

Planetary formation might occur at different stages of the stellar evolution of compact binaries. In recent years, the formation of second-generation planets has been tested in cir…

astro-ph.EP2025★ 15 cited

Experiments reveal extreme water generation during planet formation

Francesca Miozzi, Anat Shahar, Edward D. Young +7

The most abundant type of planet discovered in the Galaxy has no analogue in our Solar System and is believed to consist of a rocky interior with an overlying thick H2 dominated en…

astro-ph.EP2025★ 1 cited

Methane on the temperate exo-Saturn TOI-199b

Aaron Bello-Arufe, Renyu Hu, Mantas Zilinskas +10

Temperate ( K) gas giants represent an unexplored frontier in exoplanet atmospheric spectroscopy. Orbiting a G-type star every days, the Saturn-mass exopl…

astro-ph.EP2025★ 6 cited

Horizontal and vertical exoplanet thermal structure from a JWST spectroscopic eclipse map

Ryan C. Challener, Megan Weiner Mansfield, Patricio E. Cubillos +33

Highly-irradiated giant exoplanets known as "ultra-hot Jupiters" are anticipated to exhibit large variations of atmospheric temperature and chemistry as a function of longitude, la…

astro-ph.EP2025

Searching for GEMS: TOI-5916 b & TOI-6158 b are two Saturn-density planets orbiting M2 dwarfs

Shane O'Brien, Amber Wong, Te Han +20

We confirm the planetary nature of (1) TOI-5916 b and (2) TOI-6158 b, two Exoplanets Transiting M-dwarf Stars (GEMS), both discovered by the Transiting Exoplanet Survey Satellite (…

astro-ph.EP2025★ 3 cited

MANGOS II: Five new giant planets orbiting low-mass stars

G. Dransfield, M. Timmermans, D. Sebastian +47

Giant planets orbiting low-mass stars on short orbits present a conundrum, as in the most extreme cases their existence cannot be reconciled with current models of core accretion.…

astro-ph.EP2025★ 13 cited

Constraining exoplanet interiors using observations of their atmospheres

Tim Lichtenberg, Oliver Shorttle, Johanna Teske +1

Astronomical surveys have identified numerous exoplanets with bulk compositions that are unlike the planets of the Solar System, including rocky super-Earths and gas-enveloped sub-…

astro-ph.EP2025★ 7 cited

Water solubility in silicate melts: The effects of melt composition under reducing conditions and implications for nebular ingassing on rocky planets

Maggie A. Thompson, Paolo A. Sossi, Dan J. Bower +3

Rocky planet atmospheres form and evolve through interactions between the planet's surface and interior. If a growing rocky planet acquires enough mass prior to the dissipation of…

astro-ph.EP2025★ 4 cited

The OATMEAL Survey. III. An Aligned Transiting Warm Brown Dwarf and Evidence for Quiescent Brown Dwarf Migration

Noah Vowell, Jiayin Dong, Joseph E. Rodriguez +7

We present the first measurement of the sky-projected orbital obliquity of a benchmark transiting brown dwarf host, HIP 33609, as a part of the Orbital Architectures of Transiting…

astro-ph.EP2025

MINDS: The very low-mass star and brown dwarf sample II. Probing disk settling, dust properties, and dust-gas interplay with JWST/MIRI

Hyerin Jang, Aditya M. Arabhavi, Till Kaeufer +11

Disks around very low-mass stars (VLMS) provide environments for the formation of Earth-like planets. Mid-infrared observations have revealed that these disks exhibit weak silicate…

astro-ph.EP2025★ 2 cited

Do White Dwarfs Sample Water-Rich Planetary Material?

Isabella L. Trierweiler, Carl Melis, Érika Le Bourdais +9

Polluted white dwarfs offer a unique way to directly probe the compositions of exoplanetary bodies. We examine the water content of accreted material using the oxygen abundances of…

astro-ph.EP2025★ 5 cited

The SPACE Program. I. The featureless spectrum of HD 86226 c challenges sub-Neptune atmosphere trends

K. Angelique Kahle, Jasmina Blecic, Reza Ashtari +26

Sub-Neptune exoplanets are the most abundant type of planet known today. As they do not have a Solar System counterpart, many open questions exist about their composition and forma…

astro-ph.EP2025★ 4 cited

Planets Around Solar Twins/Analogs (PASTA) II: chemical abundances, systematic offsets, and clues to planet formation

Qinghui Sun, Chenyang Ji, Sharon Xuesong Wang +5

Context. Previous studies have suggested that the Sun is relatively depleted in refractory elements compared to other solar twins or analogs, potentially as a result of planet form…

astro-ph.EP2025★ 4 cited

Scaling K2 VIII: Short-Period Sub-Neptune Occurrence Rates Peak Around Early-Type M Dwarfs

Kevin K. Hardegree-Ullman, Galen J. Bergsten, Jessie L. Christiansen +6

We uniformly combined data from the NASA Kepler and K2 missions to compute planet occurrence rates across the entire FGK and M dwarf stellar range. The K2 mission, driven by target…

astro-ph.EP2025★ 5 cited

MINDS. Young binary systems with JWST/MIRI: Variable water-rich primaries and extended emission

Nicolas T. Kurtovic, Sierra L. Grant, Milou Temmink +16

As part of the JWST GTO program MINDS, we analyze the mid-infrared emission of three Class II binary systems: VW Cha, WX Cha, and RW Aur, to investigate the impact of stellar multi…

astro-ph.EP2025

Spectroscopic Characterization of LOFAR Radio-emitting M dwarfs

E. Koo, G. Stefansson, R. D. Kavanagh +20

Recent observations with the LOw Frequency ARray (LOFAR) have revealed 19 nearby M dwarfs showing bright circularly polarised radio emission. One of the possible sources of such em…

astro-ph.EP2025★ 6 cited

JWST/MIRI observations of the young TWA 27 system: hydrocarbon disk chemistry, silicate clouds, evidence for a CPD

P. Patapis, M. Morales-Calderón, A. M. Arabhavi +39

The Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) enables the characterisation of young self-luminous gas giants at previously inaccessible wavelengths, r…

astro-ph.EP2025★ 2 cited

An Earth-Sized Planet in a 5.4h Orbit Around a Nearby K dwarf

Kaya Han Taş, Gudmundur Stefansson, Syarief N. M. Fariz +25

We present the discovery and confirmation of the ultra-short period (USP) planet TOI-2431 b orbiting a nearby ( pc) late K star ( = $4109 \pm 28 \, {\rm…

astro-ph.EP2025★ 12 cited

Hundreds of TESS exoplanets might be larger than we thought

Te Han, Paul Robertson, Timothy D. Brandt +5

The radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blo…

astro-ph.EP2025★ 13 cited

Tracing the formation and migration history: molecular signatures in the atmosphere of misaligned hot Jupiter WASP-94Ab using JWST NIRSpec/G395H

Eva-Maria Ahrer, Siddharth Gandhi, Lili Alderson +12

The discovery of hot Jupiters that orbit very close to their host stars has long challenged traditional models of planetary formation and migration. Characterising their atmospheri…

astro-ph.EP2025★ 28 cited

MINDS: The very low-mass star and brown dwarf sample. Detections and trends in the inner disk gas

A. M. Arabhavi, I. Kamp, Th. Henning +22

Planet-forming disks around brown dwarfs and very low-mass stars (VLMS) are on average less massive and are expected to undergo faster radial solid transport than their higher mass…

astro-ph.EP2025★ 7 cited

The NEID Earth Twin Survey. II. Dynamical Masses in Seven High-acceleration Star Systems

Mark R. Giovinazzi, Cullen H. Blake, Paul Robertson +26

We present a set of companion dynamical masses and orbital parameters of seven star systems from the NEID Earth Twin Survey with significant absolute astrometric accelerations betw…

astro-ph.EP2025★ 2 cited

Diversity of Exoplanets

Diana Valencia, Amaya Moro-Martin, Johanna Teske

This review article delves into the study of low-mass exoplanets: super-Earths, mini-Neptunes and the new categories within and between that we are starting to discover. We provide…

astro-ph.EP2025★ 6 cited

GEMS JWST: Transmission spectroscopy of TOI-5205b reveals significant stellar contamination and a metal-poor atmosphere

Caleb I. Cañas, Jacob Lustig-Yaeger, Shang-Min Tsai +21

Recent discoveries of transiting giant exoplanets () around M dwarfs (GEMS) present an opportunity to investigate their atmospheric compositions and…