Analysis of the Serpens South Filamentary Cloud: CLASSy Results

L. LOONEY; MANUEL FERNANDEZ LOPEZ; D. SEGURA-COX; H.G. ARCE; K. LEE; CLASSY COLABORATION

Congreso; American Astronomical Society, AAS Meeting #223; 2014

We present a study of the Serpens South cloud, which is part of the CARMA Large Area Star-formation Survey (CLASSy) project. We observed a 210 square arcminute area of the Serpens South region, mapped at 7" resolution using the CARMA 23-dish mode in the HCN, HCO+, and N2H+ J=1-0 emission lines. The CARMA 23-dish mode combines simultaneous interferometric data from the 3.5 m, 6.1 m, and 10 m antennas and autocorrelation spectra from the 10-m antennas to reconstruct full spatial images of the molecular emission lines, tracing the structures from the large to small scales to better understand how clouds evolve to form stars. Serpens South is thought to be a very young star-forming region (a few 10E5 yr) with a central cluster of protostars lying at the origin of a radial filamentary structure. The CLASSy images allow us to analyze in detail the spatial structure and gas kinematics of the central hub and the substructure of the filaments. The northern 1 pc filament is clearly resolved into a more collimated strips of gas. Its connection with the central hub is not physically as clear as the connection of the southwestern and southeast filaments. These filaments are also resolved into several collimated structures, many of which are also velocity separated given the high-spectral resolution of the CLASSy data (0.15 km/s). Afrikaans Albanian Arabic Armenian Azerbaijani Basque Belarusian Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Detect language Dutch English Estonian Filipino Finnish French Galician Georgian German Greek Haitian Creole Hebrew Hindi Hungarian Icelandic Indonesian Irish Italian Japanese Korean Latin Latvian Lithuanian Macedonian Malay Maltese Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swahili Swedish Thai Turkish Ukrainian Urdu Vietnamese Welsh Yiddish⇄ Afrikaans Albanian Arabic Armenian Azerbaijani Basque Belarusian Bulgarian Catalan Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Estonian Filipino Finnish French Galician Georgian German Greek Haitian Creole Hebrew Hindi Hungarian Icelandic Indonesian Irish Italian Japanese Korean Latin Latvian Lithuanian Macedonian Malay Maltese Norwegian Persian Polish Portuguese Romanian Russian Serbian Slovak Slovenian Spanish Swahili Swedish Thai Turkish Ukrainian Urdu Vietnamese Welsh Yiddish English (auto-detected) » Spanish