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19982026
most citedStellar and total baryon mass fractions in groups and clusters since redshift 1

328 citations · 5.9k across the 235 of their papers we have counts for

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astro-ph.SR2026

SPIRITS 19q: Dust Production by a Subsolar-metallicity Carbon-rich Wolf-Rayet Star in NGC 2403

Sam Rose, Ryan M. Lau, Jacob E. Jencson +20

We present JWST/NIRSpec IFU observations of SPIRITS 19q, the highly dust-producing carbon-rich (WC) binary candidate located in a subsolar-metallicity region of the nearby spiral g…

astro-ph.SR2026

Euclid: The convective-transition gap of 47 Tuc

M. Libralato, M. Griggio, R. Gerasimov +140

We report the first detection of the `convective-transition gap' (also known as `M-dwarf gap') in the globular cluster 47 Tuc (NGC 104) thanks to Euclid data. This feature, linked…

astro-ph.SR2026

A Statistical Survey of Faint Solar X-ray Transients Observed by NuSTAR

Reed B. Masek, Lindsay Glesener, Jessie Duncan +14

In this paper, we use a highly sensitive telescope to characterize solar X-ray transients ranging from microflares in active regions down to weakly energetic brightenings in the qu…

astro-ph.SR2025

Euclid Quick Data Release (Q1) Ultracool dwarfs in the Euclid Deep Field North

A. Mohandasan, R. L. Smart, C. Reylé +176

Ultracool dwarfs (UCDs) encompass the lowest mass stars and brown dwarfs, defining the stellar substellar boundary. They have significant potential for advancing the understanding…

astro-ph.SR2025

Carbon Stars From Gaia DR3 and the Space Density of Dwarf Carbon Stars

Benjamin R. Roulston, Naunet Leonhardes-Barboza, Paul J. Green +1

Carbon stars (with atmospheric C/O) range widely in temperature and luminosity, from low mass dwarfs to asymptotic giant branch stars (AGB). The main sequence dwarf carbon (dC)…

astro-ph.SR2025

JWST 1.5 μm and 4.8 μm Photometry of Y Dwarfs

Loïc Albert, Sandy K. Leggett, Per Calissendorff +20

Brown dwarfs lack nuclear fusion and cool with time; the coldest known have an effective temperature below 500 K, and are known as Y dwarfs. We present a James Webb Space Telescope…

astro-ph.SR2024★ 1 cited

Euclid: High-precision imaging astrometry and photometry from Early Release Observations. I. Internal kinematics of NGC 6397 by combining Euclid and Gaia data

M. Libralato, L. R. Bedin, M. Griggio +175

The instruments at the focus of the Euclid space observatory offer superb, diffraction-limited imaging over an unprecedented (from space) wide field of view of 0.57 deg. This e…

astro-ph.SR2023★ 15 cited

VLTI/GRAVITY Observations and Characterization of the Brown Dwarf Companion HD 72946 B

W. O. Balmer, L. Pueyo, T. Stolker +96

Tension remains between the observed and modeled properties of substellar objects, but objects in binary orbits, with known dynamical masses can provide a way forward. HD 72946 B i…

astro-ph.SR2023

The Solar Origin of an In Situ Type III Radio Burst Event

Meiqi Wang, Bin Chen, Sijie Yu +4

Solar type III radio bursts are generated by beams of energetic electrons that travel along open magnetic field lines through the corona and into interplanetary space. However, und…

astro-ph.SR2019★ 43 cited

TOI-503: The first known brown dwarf-Am star binary from the TESS mission

Ján Šubjak, Rishikesh Sharma, Theron W. Carmichael +76

We report the discovery of an intermediate-mass transiting brown dwarf, TOI-503b, from the TESS mission. TOI-503b is the first brown dwarf discovered by TESS and orbits a metallic-…

astro-ph.SR2016★ 217 cited

The Radial Distribution of H2 and CO in TW Hya as Revealed by Resolved ALMA Observations of CO Isotopologues

Kamber R. Schwarz, Edwin A. Bergin, L. Ilsedore Cleeves +5

CO is widely used as a tracer of molecular gas. However, there is now mounting evidence that gas phase carbon is depleted in the disk around TW Hya. Previous efforts to quantify th…

astro-ph.SR2011

EVLA observations of the nebula around G79.29+0.46

G. Umana, C. S. Buemi, C. Trigilio +5

We have observed the radio nebula surrounding the Galactic LBV candidate G79.29+0.46 with the EVLA at 6 cm. These new radio observations allow a morphological comparison between th…

astro-ph.SR2009★ 21 cited

Detection of X-rays from the jet-driving Symbiotic Star MWC 560

Matthias Stute, Raghvendra Sahai

We report the detection of X-ray emission from the jet-driving symbiotic star MWC 560. We observed MWC 560 with XMM-Newton for 36 ks. We fitted the spectra from the EPIC pn, MOS1 a…