A French-Spanish research team has found very serious clues for the presence of a first hydrostatic core in a protostellar core located in the Perseus molecular cloud. The first hydrostatic core is a critical phase in the evolution pathway of a prestellar core towards the formation of a star. It’s a challenging premiere because this phase is very short, as compared with astronomical time scales, hence very difficult to pin point. The study has been led by a CNRS researcher from the LERMA laboratory (Laboratoire d'Etudes du rayonnement et de la Matiere en Astrophysique et Atmosphères LERMA – CNRS/Observatoire de Paris/UPMC/Université de Cergy Pontoise/ENS) ), using the NOEMA Interferometer operated by IRAM. It is published in the Astronomy and Astrophysics journal dated May 12, 2015.
|Map in four rotational lines of methanol simultaneously observed with NOEMA. The contours show the distrubution of the 30-20 line displayed in the top left panel. The pink crosses show the position of the protostellar objects. The methanol emission is particularly intense in the molecular outflows ejected by the 2 protostellar objects. Credits: M. Gerin.|
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