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VLA cm-wave survey of young stellar objects in the Oph A cluster: constraining extreme UV- and X-ray-driven disk photo-evaporation -- A pathfinder for Square Kilometre Array studies
A. Coutens, H. B. Liu, I. Jiménez-Serra +28
Observations of young stellar objects (YSOs) in centimeter bands can probe the continuum emission from growing dust grains, ionized winds, and magnetospheric activity, which are in…
Probing CO and N Snow Surfaces in Protoplanetary Disks with NH Emission
Chunhua Qi, Karin I. Öberg, Catherine C. Espaillat +6
Snowlines of major volatiles regulate the gas and solid C/N/O ratios in the planet-forming midplanes of protoplanetary disks. Snow surfaces are the 2D extensions of snowlines in th…
Multiple Rings of Millimeter Dust Emission in the HD 15115 Debris Disk
Meredith A. MacGregor, Alycia J. Weinberger, Erika R. Nesvold +8
We present observations of the HD 15115 debris disk from ALMA at 1.3 mm that capture this intriguing system with the highest resolution ( or AU) at mil…
Kuiper Belt-Like Hot and Cold Populations of Planetesimal Inclinations in the Pictoris Belt Revealed by ALMA
Luca Matrà, Mark C. Wyatt, David J. Wilner +4
The inclination distribution of the Kuiper belt provides unique constraints on its origin and dynamical evolution, motivating vertically resolved observations of extrasolar planete…
On the Ubiquity and Stellar Luminosity Dependence of Exocometary CO Gas: Detection around M Dwarf TWA 7
Luca Matrà, Karin I. Öberg, David J. Wilner +2
Millimeter observations of CO gas in planetesimal belts show a high detection rate around A stars, but few detections for later type stars. We present the first CO detection in a p…