The ALMA Survey of 70 μm dark High-mass clumps in Early Stages

The ASHES survey is designed to systematically characterize the earliest stages and constrain theories of high-mass star formation. We use ALMA to observe dust continuum and line emission from a total of thirty-nine 3.6–70 μm dark prestellar clump candidates, embedded in infrared dark clouds (IRDCs). We have mosaicked each clump (~1 arcmin2) in continuum and line emission with the 12 m, 7 m, and Total Power (TP) arrays at 224 GHz (1.34 mm), resulting in ~1.2" resolution (∼4800 au, at the average source distance).

Publications


  
ASHES I. Pilot Survey: Clump Fragmentation                            
Sanhueza et al. (2019)
 
ASHES II. Molecular Outflows in the Extreme Early Stages of Protocluster Formation
Li, Sanhueza et al. (2020)


 
ASHES III. A Young Molecular Outflow Driven by a Decelerating Jet
Tafoya, Sanhueza et al. (2021)
 
ASHES IV. Star Formation Signatures in G023.477           
Morii, Sanhueza et al. (2021)


 
ASHES V. Deuterated Molecules in the 70 μm Dark IRDC G14.492-00.139
Sakai, Sanhueza et al. (2022)
 
ASHES VI. The Core-scale CO Depletion           
Sabatini et al. (2022)


 
ASHES VII. Chemistry of Embedded Dense Cores
Li, Sanhueza et al. (2022)
 
ASHES VIII. Dynamics of Embedded Dense Cores           
Li, Sanhueza et al. (2023)


 
ASHES IX. Physical Properties and Spatial Distribution of Cores in IRDCs
Morii, Sanhueza et al. (2023)
 
ASHES X. Hot Gas Reveals Deeply Embedded Star Formation           
Izumi, Sanhueza et al. (2024)


 
ASHES XI. Statistical Study of Early Fragmentation
Morii, Sanhueza et al. (2024)