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Unveiling the physical and chemical conditions in the young disk around L1527

Published online by Cambridge University Press:  04 September 2018

M. L. R. van ’t Hoff ,
J. J. Tobin ,
D. Harsono  and
E. F. van Dishoeck
M. L. R. van ’t Hoff
Affiliation:
Leiden Observatory, Leiden University, PO box 9513, NL-2300 RA, Leiden, the Netherlands email: [email protected]
J. J. Tobin
Affiliation:
Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W. Brooks Street, Norman, OK 73019, USA
D. Harsono
Affiliation:
Leiden Observatory, Leiden University, PO box 9513, NL-2300 RA, Leiden, the Netherlands email: [email protected]
E. F. van Dishoeck
Affiliation:
Leiden Observatory, Leiden University, PO box 9513, NL-2300 RA, Leiden, the Netherlands email: [email protected] Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstrasse 1, 85748 Garching, Germany
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Abstract

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Planets form in disks around young stars. The planet formation process may start when the protostar and disk are still deeply embedded within their infalling envelope. However, unlike more evolved protoplanetary disks, the physical and chemical structure of these young embedded disks are still poorly constrained. We have analyzed ALMA data for 13CO, C18O and N2D+ to constrain the temperature structure, one of the critical unknowns, in the disk around L1527. The spatial distribution of 13CO and C18O, together with the kinetic temperature derived from the optically thick 13CO emission and the non-detection of N2D+, suggest that this disk is warm enough (≳ 20 K) to prevent CO freeze-out.

Keywords

stars: individual (L1527 IRS)stars: formationastrochemistry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S332: Astrochemistry VII: Through the Cosmos from Galaxies to Planets , March 2017 , pp. 121 - 123
Copyright
Copyright © International Astronomical Union 2018 

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