output
19952026
most citedObservational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant

19.6k citations

801 papers

astro-ph.EP2026

Leveraging Impact Parameter to Mitigate the Transit Light Source Effect: Early Insights from TRAPPIST-1

Ana Glidden, Alexander I. Shapiro, Sara Seager +19

Stellar activity complicates exoplanet transmission spectra, particularly for smaller planets around M dwarfs with JWST. The transit light source (TLS) effect, the imprinting of sp…

astro-ph.EP2026

JWST-TST High Contrast: First Direct Spectroscopy of GJ 504 b reveals Clouds and Possible Metal Enrichment

Aneesh Baburaj, Jean-Baptiste Ruffio, Marshall Perrin +27

Characterizing the coldest directly imaged companions through direct spectroscopy has only recently become possible with the James Webb Space Telescope. We present moderate-resolut…

astro-ph.EP2026

JWST Observations of Asteroid 2024 YR4 Rule Out a 2032 Lunar Impact and Demonstrate a New Regime for Planetary Defense Follow-up

Julien de Wit, Andrew S. Rivkin, Marco Micheli +12

At the end of its discovery apparition, the 60 m near-Earth object 2024 YR4 was associated with a non-zero probability of lunar impact during its 2032 December 22 close appro…

astro-ph.IM2026★ 14 cited

The Vera C. Rubin Observatory Data Preview 1

Vera C Rubin Observatory Team, Tatiana Acero Cuellar, Emily Acosta +325

We present Rubin Data Preview 1 DP1, the first data from the NSF DOE Vera C Rubin Observatory, comprising raw and calibrated single epoch images, coadds, difference images, detecti…

astro-ph.CO2026★ 1 cited

VENUS: Strong-lensing model of MACS J1931.8-2635 -- revealing the farthest multiply imaged supernova

Joseph F. V. Allingham, Adi Zitrin, Vasily Kokorev +42

We present a parametric strong-lensing model for the galaxy cluster MACS J1931.8-2635 (), accompanying the detection of the spectroscopically confirmed SN Eos at $z = 5…

astro-ph.EP2025★ 25 cited

JWST-TST DREAMS: NIRSpec/PRISM Transmission Spectroscopy of the Habitable Zone Planet TRAPPIST-1 e

Néstor Espinoza, Natalie H. Allen, Ana Glidden +32

TRAPPIST-1 e is one of the very few rocky exoplanets that is both amenable to atmospheric characterization and that resides in the habitable zone of its star -- located at a distan…

astro-ph.EP2025★ 22 cited

JWST-TST DREAMS: Secondary Atmosphere Constraints for the Habitable Zone Planet TRAPPIST-1 e

Ana Glidden, Sukrit Ranjan, Sara Seager +25

The TRAPPIST-1 system offers one of the best opportunities to characterize temperate terrestrial planets beyond our own solar system. Within the TRAPPIST-1 system, planet e stands…

astro-ph.EP2025★ 8 cited

NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)

Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić +305

We report on the observation and measurement of astrometry, photometry, morphology, and activityof the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-…

astro-ph.EP2025★ 10 cited

The Atmosphere of Titan in Late Northern Summer from JWST and Keck Observations

Conor A. Nixon, Bruno Bézard, Thomas Cornet +42

Saturn's moon Titan undergoes a long annual cycle of 29.45 Earth years. Titan's northern winter and spring were investigated in detail by the Cassini-Huygens spacecraft (2004-2017)…

astro-ph.EP2025★ 6 cited

First Detection of Molecular Activity in the Largest Known Oort Cloud Comet: ALMA Imaging of C/2014 UN271 (Bernardinelli-Bernstein) at 16.6 au from the Sun

Nathan X. Roth, Stefanie N. Milam, Martin A. Cordiner +12

We report observations of comet C/2014 UN271 (Bernardinelli-Bernstein) carried out on UT 2024 March 8 and 17 at a heliocentric distance () of 16.6 au using the Atac…

astro-ph.EP2024★ 11 cited

JWST-TST DREAMS: Non-Uniform Dayside Emission for WASP-17b from MIRI/LRS

Daniel Valentine, Hannah R. Wakeford, Ryan C. Challener +23

We present the first spectroscopic characterisation of the dayside atmosphere of WASP-17b in the mid-infrared using a single JWST MIRI/LRS eclipse observation. From forward-model f…

astro-ph.EP2024★ 6 cited

The Thermal Structure and Composition of Jupiter's Great Red Spot From JWST/MIRI

Jake Harkett, Leigh N. Fletcher, Oliver R. T. King +15

Jupiter's Great Red Spot (GRS) was mapped by the James Webb Space Telescope (JWST)/Mid-Infrared Instrument (4.9-27.9 micron) in July and August 2022. These observations took place…

astro-ph.GA2024★ 9 cited

Revealing ringed galaxies in group environments

Julia Fernandez, . Sol Alonso, Valeria Mesa +1

Aims. We explore galaxies with ringed structures inhabiting poor and rich groups with the aim of assessing the effects of local density environments on ringed galaxy properties. Me…

astro-ph.GA2023★ 59 cited

The UNCOVER Survey: A First-look HST+JWST Catalog of Galaxy Redshifts and Stellar Population Properties Spanning

Bingjie Wang, Joel Leja, Ivo Labbé +41

The recent UNCOVER survey with the James Webb Space Telescope (JWST) exploits the nearby cluster Abell 2744 to create the deepest view of our universe to date by leveraging strong…

astro-ph.EP2023★ 24 cited

Saturn's Atmosphere in Northern Summer Revealed by JWST/MIRI

Leigh N. Fletcher, Oliver R. T. King, Jake Harkett +8

Saturn's northern summertime hemisphere was mapped by JWST/MIRI (4.9-27.9 m) in November 2022, tracing the seasonal evolution of temperatures, aerosols, and chemical species in…

astro-ph.EP2023★ 42 cited

JWST/NIRSpec Observations of the Planetary Mass Companion TWA 27B

K. L. Luhman, P. Tremblin, S. M. Birkmann +8

We present 1-5um spectroscopy of the young planetary mass companion TWA 27B (2M1207B) performed with NIRSpec on board the James Webb Space Telescope. In these data, the fundamental…

astro-ph.GA2023★ 32 cited

JWST-TST Proper Motions: I. High-Precision NIRISS Calibration and Large Magellanic Cloud Kinematics

M. Libralato, A. Bellini, R. P. van der Marel +27

We develop and disseminate effective point-spread functions and geometric-distortion solutions for high-precision astrometry and photometry with the JWST NIRISS instrument. We corr…

astro-ph.IM2023★ 122 cited

The James Webb Space Telescope Mission: Optical Telescope Element Design, Development, and Performance

Michael W. McElwain, Lee D. Feinberg, Marshall D. Perrin +126

The James Webb Space Telescope (JWST) is a large, infrared space telescope that has recently started its science program which will enable breakthroughs in astrophysics and planeta…

astro-ph.IM2022★ 1 cited

Planetary Exploration Horizon 2061 Report, Chapter 4: From planetary exploration goals to technology requirements

Jérémie Lasue, Pierre Bousquet, Michel Blanc +19

This chapter reviews for each province and destination of the Solar System the representative space missions that will have to be designed and implemented by 2061 to address the si…

astro-ph.GA2022★ 19 cited

Webb's PEARLS: Bright 1.5--2.0 micron Dropouts in the Spitzer/IRAC Dark Field

Haojing Yan, Seth H. Cohen, Rogier A. Windhorst +35

Using the first epoch of four-band NIRCam observations obtained by the James Webb Space Telescope (JWST) Prime Extragalactic Areas for Reionization and Lensing Science Program in t…

astro-ph.IM2022★ 440 cited

The Science Performance of JWST as Characterized in Commissioning

Jane Rigby, Marshall Perrin, Michael McElwain +623

This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performanc…

astro-ph.SR2021★ 37 cited

Triply eclipsing triple stars in the northern TESS fields: TICs 193993801, 388459317 and 52041148

T. Borkovits, T. Mitnyan, S. A. Rappaport +23

In this work we report the discovery and analysis of three new triply eclipsing triple star systems found with the TESS mission during its observations of the northern skies: TICs…

physics.ed-ph2021

La Serena School for Data Science: multidisciplinary hands-on education in the era of big data

A. Bayo, M. J. Graham, D. Norman +4

La Serena School for Data Science is a multidisciplinary program with six editions so far and a constant format: during 10-14 days, a group of 30 students (15 from the US, 15…

astro-ph.EP2020

Spitzer's Solar System studies of asteroids, planets and the zodiacal cloud

David Trilling, Carey Lisse, Dale P. Cruikshank +13

In its 16 years of scientific measurements, the Spitzer Space Telescope performed a number of ground-breaking infrared measurements of Solar System objects. In this second of two p…