H2D+ observations give an age of at least one million years for a cloud core forming Sun-like stars

Sandra Brünken (), Olli Sipilä, Edward T. Chambers, Jorma Harju, Paola Caselli, Oskar Asvany, Cornelia E. Honingh, Tomasz Kamiński, Karl M. Menten, Jürgen Stutzki and Stephan Schlemmer ()
Additional contact information
Sandra Brünken: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
Olli Sipilä: PO Box 64, 00014 University of Helsinki
Edward T. Chambers: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
Jorma Harju: PO Box 64, 00014 University of Helsinki
Paola Caselli: Max-Planck Institut für Extraterrestrische Physik, Gießenbachstraße 1, 85741 Garching bei München, Germany
Oskar Asvany: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
Cornelia E. Honingh: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
Tomasz Kamiński: Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Karl M. Menten: Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
Jürgen Stutzki: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany
Stephan Schlemmer: I. Physikalisches Institut, Universität zu Köln, Zülpicher Straße 77, 50937 Köln, Germany

Nature, 2014, vol. 516, issue 7530, 219-221

Abstract: Observations of emission and absorption lines of the deuterated trihydrogen cation (H2D+) from a dense interstellar cloud core, combined with chemical modelling, reveal that the core needed at least one million years to form Sun-like stars.

Date: 2014
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DOI: 10.1038/nature13924

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