Press Releases on TW Hya and HL Tau

image credit: Carrasco-Gonzalez et al.; Bill Saxton, NRAO/AUI/NSF The last two weeks were busy - we released two press releases, both happened to be about observed substructure in disks.
The first one is on the iconic HL Tauri disk that we observed with the EVLA at optically thin wavelengths where we resolved a possible clump in the innermost ring.
For more information, you can read The second press release is about our ALMA observations of the TW Hya disk. These are pretty much the highest resolution observations ALMA can do aimed at the closest disk to us. Observations in the foreseeable future will not get much better than this. We found surprising ringed substructure, that is several ring/gap features, much narrower than seen in HL Tau. In addition to that, the inner gap that was predicted from analysis of the spectral intensity distribution before was finally imaged and found to be of 1 AU size. It is exciting to consider that these are likely the signposts of planets forming in the innermost regions of the system.

You can check out image credit: image credit: S. Andrews (Harvard-Smithsonian CfA), ALMA (ESO/NAOJ/NRAO)
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