What question did this study set out to answer?

The study aims to quantify the astrometric noise induced by stellar activity to determine the detection limits for low-mass planets around Sun-like stars.

May 24, 2026Monthly Notices of the Royal Astronomical SocietyOpen Access

Astrometric exoplanet detection survives solar-like stellar contamination

View Full Paper

Ask AI

Bookmark

The study aims to quantify the astrometric noise induced by stellar activity to determine the detection limits for low-mass planets around Sun-like stars.
Analyzed high-resolution images of the Sun across three wavelength regions over nearly a decade
Measured photometric centroid jitter during high and low activity periods of the Solar cycle
Simulated starspot effects to evaluate detection limits for Earth-like exoplanets
Found the typical astrometric jitter of the Sun at λ = 607.2 nm to be 0.342 μas/pc
Observed jitter ranging between 0.058 μas/pc (low activity) and 1.294 μas/pc (high activity)
Established detection limits for Earth-like exoplanets to be below the set noise floor but greater than Mars around Solar-analog stars

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Randomized trial quantifies astrometric jitter in Solar-like stars, highlighting detection limits for Earth-like exoplanets.

Cite This Study

Deagan et al. (2026) studied this question.

synapsesocial.com/papers/6a1295ae48a0ea1665671e5d https://doi.org/10.1093/mnras/stag966

View Full Paper

Ask AI

Bookmark

Astrometric exoplanet detection survives solar-like stellar contamination

Key Points

Discussion

Implication

Cite This Study

Astrometric exoplanet detection survives solar-like stellar contamination

Key Points

Discussion

Implication

Cite This Study

Keep reading

Keep reading