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June 12, 2026 (v1)

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Open

From Stars Towards the Opacity Limit: Probing Dynamical Impacts on Multiplicity in NGC 1333

Mehta, Kunal De Furio, Matthew Meyer, Michael R.

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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June 12, 2026 (v1)

Poster

Open

Searching for the Onset of Magnetic Dynamos in the Earliest Protostars

Principe, David Epstein, Jillian Grosso, Nicolas

X-rays from young, pre-main sequence (pre-MS) stars play an important role in the chemical evolution of circumstellar disks and the eventual formation of planets. Low‑mass (≲2 M⊙) pre-MS stars are prolific X‑ray sources because their rapid spin and vigorous magnetic dynamo heat their coronae to several million degrees Kelvin. Decades of...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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June 12, 2026 (v1)

Poster

Open

Do Genetic Algorithms Perform Better than Brute-Force Optimization for Solar Calibrations?

Rubio, Ily Joyce, Meridith Miller, Niall

Solar calibration of the convective mixing length, $\alpha_\text{MLT}$, is a critical step in stellar modeling. However, traditional methods like brute force parameter sweeps are computationally expensive and other methods are sensitive to initial conditions. In this analysis, we study an alternative approach for solar optimization: Genetic...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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1
June 12, 2026 (v1)

Poster

Open

Solar System Scale super-Jupiters are Metal Rich: Insights from a High Contrast JWST CO2 Census

Balmer, William

The formation pathways of super-Jovian exoplanets are uncertain: did they form top down like starsand brown dwarfs, or bottom up like other exoplanets? Planets formed by core accretion shouldexhibit distinct, enriched abundances compared to their host, but correlated noise, telluric contamina-tion, and limited wavelength coverage has precluded...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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1
June 13, 2026 (v1)

Poster

Open

Stellar Clocks, Radius Inflation, and Anomalous Oscillation Amplitudes Revealed by EPRV Asteroseismology

Li, Yaguang

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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1
June 13, 2026 (v1)

Poster

Open

Mass Loss on the Red Giant Branch Decreases with Metallicity Suggesting an Operating Interior Magnetic Dynamo

Li, Yaguang

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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June 12, 2026 (v1)

Poster

Open

NGTS Clusters Survey VI. Stellar rotation in seven young open clusters within the PLATO LOPS2 field

Hughes, Alexander Gillen, Edward Battley, Matthew

The first billion years represents a critical phase of stellar evolution. Stars spin up as they evolve through the Pre-main sequence (PMS) until contraction is halted by the onset of fusion at the zero-age main sequence (ZAMS), whereby stars move from a spin up regime to a spin down regime as magnetised stellar winds carry away angular...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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1
June 12, 2026 (v1)

Poster

Open

A Sample of Bright Nearby Long Secondary Period Variables as Laboratories for Testing the Binary-Dust Scenario

Iwanek, Patryk Skowron, Dorota Kołaczek-Szymański, Piotr Antoni

We present a sample of bright, nearby Long Secondary Period (LSP) stars selected for detailed follow-up observations. Using long-term V-band photometry from the All Sky Automated Survey, we searched bright red Tycho-2 stars and identified 23 robust LSP variables brighter than 8 mag. Due to their brightness and relative proximity, these objects...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

Published in Bright Long Secondary Period Stars for Follow-up Observations, 75, 297, ISSN: 0001-5237, 2026.

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June 12, 2026 (2)

Poster

Open

Direct imaging search of young jovian exoplanets with JWST NIRCam

Girard, Julien Carter, Aarynn Biller, Beth

Stable and extremely sensitive in the near-infrared, JWST extends the detection parameter space to sub-Jupiter and/or temperate (down to 250 to 400 K effective temperature) exoplanets for the first time. We present a group of 3 NIRCam coronagraphic survey guest observer programs (4050, 5835, 6005) in cycles 2 and 3 that targeted 170 nearby...

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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June 12, 2026 (v1)

Poster

Open

TESS Rotation Periods of Candidate Single Late-M Dwarfs

Lambier, Samantha

Uploaded on June 13, 2026

Part of The 23rd Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (Tokyo, June 15-19, 2026)

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