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Anto Idicherian Lonappan

@antolonappan.me

27 followers 44 following 4 posts

🌀 Cosmologist | UCSD Postdoc 🔭 Cosmic Microwave Background | @simonsobservatory.org, CMB-S4, LiteBIRD.

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Anto Idicherian Lonappan @antolonappan.me · 03/07/2026

I am delighted to share that I have been granted membership in The International Astronomical Union (IAU).

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Anto Idicherian Lonappan @antolonappan.me · 18/06/2026

Threads thinner than a proton. A mountain of mass per atom's width. Stretched across the observable universe. Cosmic strings — if they exist — would be the most extreme objects in the cosmos. We just looked for them in ACT DR6 🌀 📜 arxiv.org/abs/2606.19337 👩‍🎓 @keerthanaramesh.bsky.social

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Reposted by Anto Idicherian Lonappan

Prof. Brian Keating @drbriankeating.bsky.social · 10/08/2025

I’ve spent years searching for evidence that the universe might have a preferred direction—something that would shake the foundations of cosmology. Our new paper just dropped in Physical Review D. It’s about a strange twist in the cosmic microwave background: anisotropic birefringence.

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Anto Idicherian Lonappan @antolonappan.me · 18/04/2025

New preprint 🔭 “Hunting B‑modes from anisotropic cosmic birefringence”. We measure the amplitude parameter as 0.42 × 10⁻⁴ (1 σ) and set a 95 % CL upper limit of 1 × 10⁻⁴. Dive in 👉 arxiv.org/abs/2504.13154 #CMB #cosmology

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Reposted by Anto Idicherian Lonappan

Simons Observatory @simonsobservatory.org · 10/04/2025

This week, we are trying to assess performance of our Large Aperture Telescope by looking at the planet Mars. For our telescope, it appears as a point, so we can understand our optical response and pointing by observing it. Image credit: Mark Devlin. ☄️🔭

The Simons Observatory LAT with its aperture open, looking at the sky at night. Red safety lights illuminate the bottom of the telescope structure, while a few stars shine in the background.

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Reposted by Anto Idicherian Lonappan

Prof. Brian Keating @drbriankeating.bsky.social · 30/03/2025

The @simonsobservatory.org Large Aperture Telescope beneath the Milky Way by @felipecarrero.bsky.social

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