1 Concept Map for Star Formation accretion disk bipolar jet birth line cloud-cloud collision cocoon cold gas disturbance dust grains fragmentation free fall contraction interstellar cloud main sequence nearby hot stars protostar protostellar disk shock wave T Tauri star supernova explosion shock wave free-fall contraction protostar cocoon birth line protostellar disk T Tauri star bi-polar jet supernova explosion cloud-cloud collision nearby hot stars galaxy disturbance compresses an leading to inside a arriving at the ejecting a Interstellar Cloud accretion disk main sequence cold gas dust grains fragmentation contains forming a
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