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IN-SYNC VI. Identification and Radial Velocity Extraction for 100+ Double-Lined Spectroscopic Binaries in the APOGEE/IN-SYNC Fields
M. A. Fernandez, Kevin R. Covey, Nathan De Lee +15
We present radial velocity measurements for 70 high confidence, and 34 potential binary systems in fields containing the Perseus Molecular Cloud, Pleiades, NGC 2264, and the Orion…
IN-SYNC III: The dynamical state of IC 348 - A super-virial velocity dispersion and a puzzling sign of convergence
Michiel Cottaar, Kevin R. Covey, Jonathan B. Foster +11
Most field stars will have encountered the highest stellar density and hence the largest number of interactions in their birth environment. Yet the stellar dynamics during this cru…
ALMA Observations of the IRDC Clump G34.43+00.24 MM3: DNC/HNC Ratio
Takeshi Sakai, Nami Sakai, Kenji Furuya +6
We have observed the clump G34.43+00.24 MM3 associated with an infrared dark cloud in DNC =3--2, HNC =3--2, and NH =3--2 with the Atacama Large Millimeter/s…
ALMA Observations of the IRDC Clump G34.43+00.24 MM3: 278 GHz Class I Methanol Masers
Takahiro Yanagida, Takeshi Sakai, Tomoya Hirota +7
We have observed a molecular clump (MM3) associated with the infrared dark cloud G34.43+00.24 in the CH3OH J_K=9_{-1}--8_0 E, 5_0-4_0 E, and 5_{-1}-4_{-1} E lines at sub-arcsecond…
IN-SYNC I: Homogeneous Stellar Parameters from High Resolution APOGEE Spectra for Thousands of Pre-main Sequence Star
Michiel Cottaar, Kevin R. Covey, Michael R. Meyer +12
Over two years 8,859 high-resolution H-band spectra of 3,493 young (1 - 10 Myr) stars were gathered by the multi-object spectrograph of the APOGEE project as part of the IN-SYNC an…
ALMA Observations of the IRDC Clump G34.43+00.24 MM3: Hot Core and Molecular Outflows
Takeshi Sakai, Nami Sakai, Jonathan B. Foster +7
We have observed a cluster forming clump (MM3) associated with the infrared dark cloud G34.43+00.24 in the 1.3 mm continuum and the CH3OH, CS, 13CS, SiO, CH3CH2CN, and HCOOCH3 line…
SMA Observations of Class 0 Protostars: A High-Angular Resolution Survey of Protostellar Binary Systems
Xuepeng Chen, Hector G. Arce, Qizhou Zhang +8
We present high angular resolution 1.3 mm and 850 um dust continuum data obtained with the Submillimeter Array toward 33 Class 0 protostars in nearby clouds (distance < 500 pc), wh…
Dense Cores in Perseus: The Influence of Stellar Content and Cluster Environment
Jonathan B. Foster, Erik W. Rosolowsky, Jens Kauffman +5
We present the chemistry, temperature, and dynamical state of a sample of 193 dense cores or core candidates in the Perseus Molecular cloud and compare the properties of cores asso…