SIMBAD references

2021ApJS..256...25T - Astrophys. J., Suppl. Ser., 256, 25-25 (2021/October-0)

Molecular cloud cores with high deuterium fractions: Nobeyama mapping survey.

TATEMATSU K., KIM G., LIU T., EVANS II N.J., YI H.-W., LEE J.-E., WU Y., HIRANO N., LIU S.-Y., DUTTA S., SAHU D., SANHUEZA P., KIM K.-T., JUVELA M., TOTH L.V., FEHER O., HE J., GE J., FENG S., CHOI M., KANG M., THOMPSON M.A., FULLER G.A., LI D., RISTORCELLI I., WANG K., DI FRANCESCO J., EDEN D., OHASHI S., KANDORI R., VASTEL C., HIROTA T., SAKAI T., LU X., NGUYEN LU'O'NG Q., SHINNAGA H., KIM J. (The JCMT Large Program "SCOPE" Collaboration)

Abstract (from CDS):

We present the results of on-the-fly mapping observations of 44 fields containing 107 SCUBA-2 cores in the emission lines of molecules N₂H⁺, HC₃N, and CCS at 82-94 GHz using the Nobeyama 45 m telescope. This study aimed at investigating the physical properties of cores that show high deuterium fractions and might be close to the onset of star formation. We found that the distributions of the N₂H⁺ and HC₃N line emissions are approximately similar to the distribution of the 850 µm dust continuum emission, whereas the CCS line emission is often undetected or is distributed in a clumpy structure surrounding the peak position of the 850 µm dust continuum emission. Occasionally (12%), we observe CCS emission, which is an early-type gas tracer toward the young stellar object, probably due to local high excitation. Evolution toward star formation does not immediately affect the nonthermal velocity dispersion.

Journal keyword(s): Interstellar clouds

VizieR on-line data: <Available at CDS (J/ApJS/256/25): table4.dat table6.dat tablea1.dat tablea2.dat tablea3.dat tablea4.dat tablea5.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 18

Full paper

View the references in ADS

To bookmark this query, right click on this link: simbad:2021ApJS..256...25T and select 'bookmark this link' or equivalent in the popup menu