Velocity-coherent Filaments in NGC 1333: Evidence for Accretion Flow?

Velocity-coherent Filaments in NGC 1333: Evidence for Accretion Flow?

Recent observations of global velocity gradients across and along molecular filaments have been interpreted as signs of gas accreting onto and along these filaments, potentially feeding star-forming cores and protoclusters. The behavior of velocity gradients in filaments, however, has not been studi...

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Veröffentlicht in:The Astrophysical journal 2020-03, Vol.891 (1), p.84
Hauptverfasser: Chen, Michael Chun-Yuan, Francesco, James Di, Rosolowsky, Erik, Keown, Jared, Pineda, Jaime E., Friesen, Rachel K., Caselli, Paola, Chen, How-Huan, Matzner, Christopher D., Offner, Stella S., Punanova, Anna, Redaelli, Elena, Scibelli, Samantha, Shirley, Yancy
Format: Artikel
Sprache:eng
Schlagworte:
Ammonia
Astrophysics
Cubes
Deposition
Filaments
Interstellar filaments
Interstellar medium
Interstellar molecules
Molecular clouds
Molecular gas
Molecular spectroscopy
Radio astronomy
Spine
Star clusters
Star formation
Velocity
Velocity gradient
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Beschreibung
Zusammenfassung:Recent observations of global velocity gradients across and along molecular filaments have been interpreted as signs of gas accreting onto and along these filaments, potentially feeding star-forming cores and protoclusters. The behavior of velocity gradients in filaments, however, has not been studied in detail, particularly on small scales (
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/ab7378