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A JWST, ALMA, and VLA Survey of the Ophiuchus A Star-forming Region: Unveiling Hidden Dust Mass and Connecting Infrared Outflows to Their Radio Origins

I.C. Radley, J.D. Ilee, G. Busquet, H.B. Liu, K.M. Pontoppidan, A. Ribas, M. Audard, E. Bianchi, T.L. Bourke, C. Codella
September 28, 2026
Published Date

Research Abstract & Technology Focus

We present an infrared, millimeter, and radio survey of 20 Class 0–III young stellar objects in the Ophiuchus A L1688 star-forming cluster, combining high-resolution (7–25 au) Very Large Array (VLA) and James Webb Space Telescope observations with archival Atacama Large Millimeter/submillimeter Array data. We implement physically motivated models to derive dust and ionized gas properties, spectral behaviour, and their relative contributions through the millimeter-to-centimeter radio spectral energy distribution. Our models reveal circumstellar dust disks that are, on average, tens to hundreds of times more massive than millimeter-only estimates (subject to uncertainties arising from the choice of dust opacity) and contain millimeter-sized grains even at the Class 0 stage. Owing to the VLA’s high resolution, we are able to connect outflows to their origins, detecting protostellar jet emission on scales of tens to thousands of au. Our results represent a homogeneous characterization of the dust and ionized gas properties in Ophiuchus and present a potential solution to the long-standing “missing disk mass” problem. However, our understanding is still limited by resolution and sensitivity at frequencies
Physics Astrophysics Astronomy Angular resolution (graph drawing) Infrared Telescope

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What is the core focus of the research titled 'A JWST, ALMA, and VLA Survey of the Ophiuchus A Star-forming Region: Unveiling Hidden Dust Mass and Connecting Infrared Outflows to Their Radio Origins'?

This literature focuses on: We present an infrared, millimeter, and radio survey of 20 Class 0–III young stellar objects in the Ophiuchus A L1688 star-forming cluster, combining high-resolution (7–25 au) Very Large Array (VLA) and James Webb Space Telescope observations with...

Are there open-source GitHub repositories related to A JWST, ALMA, and VLA Survey of the Ophiuchus A Star-forming Region: Unveiling Hidden Dust Mass and Connecting Infrared Outflows to Their Radio Origins?

Yes, open-source projects like diinki/linux-antiquity (A highly tasteful Linux-theme, reminiscent of art-nouveau and old drawings related to astronomy, science, and mythology.) are actively building upon these concepts.

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What other academic literature is closely related to 'A JWST, ALMA, and VLA Survey of the Ophiuchus A Star-forming Region: Unveiling Hidden Dust Mass and Connecting Infrared Outflows to Their Radio Origins'?

Yes, highly correlated activity was mapped. An entry titled 'The Ultraviolet Slopes of Early Universe Galaxies: The Impact of Bursty Star Formation, Dust, and Nebular Continuum Emission' discusses this: Abstract JWST has enabled the detection of the ultraviolet (UV) continuum of galaxies at z > 10, revealing extremely blue, potential...

Are there commercial applications of 'A JWST, ALMA, and VLA Survey of the Ophiuchus A Star-forming Region: Unveiling Hidden Dust Mass and Connecting Infrared Outflows to Their Radio Origins' in market news publications?

Yes, highly correlated activity was mapped. An entry titled 'A PhD student in Sydney just found a “Rosetta Stone” for years of unexplained radio bursts from the Milky Way: a dead star is stripping material from its companion in a 1.4-hour orbit, giving astronomers their clearest look yet at what produces at least some of these mysterious signals.' discusses this: ASKAP J1745−5051 links a 1.34497-hour radio pulse to an accreting white dwarf binary, giving astronomers a reference case for long-period radio tra...

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