CaltechAUTHORS
  A Caltech Library Service

From Infall to Rotation Around Young Stellar Objects

Hogerheijde, Michiel R. and Boogert, Adwin C. A. and van Dishoeck, Ewine F. and Blake, Geoffrey A. (2002) From Infall to Rotation Around Young Stellar Objects. In: The Origin of Stars and Planets: The VLT View. ESO Astrophysics Symposia. Springer , Berlin, pp. 53-60. ISBN 978-3-540-43541-9. http://resolver.caltech.edu/CaltechAUTHORS:20190607-144233614

[img] PDF - Published Version
See Usage Policy.

1461Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20190607-144233614

Abstract

We present evidence of a short-lived, transitional stage between the fully embedded and optically visible stages of low-mass star formation. This stage is characterized by a large (2000 AU radius) disk with close-to Keplerian motions, but with a significant inward component to the velocity field. Millimeter-interferometric observations of HCO+ J=1-0 and 3-2 first identified this structure around the embedded object L1489 IRS, with inward motions present on scales of several hundred AU. Subsequent R≈25,000 M-band spectroscopy showed that the inward motions extend to within 0.1 AU from the star. We conclude that angular-momentum transfer is crucial in determining the final density distribution in the disk and the initial conditions for planet formation.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/10856518_6DOIArticle
ORCID:
AuthorORCID
van Dishoeck, Ewine F.0000-0001-7591-1907
Blake, Geoffrey A.0000-0003-0787-1610
Additional Information:© 2002 Springer-Verlag Berlin Heidelberg. First Online: 15 October 2003.
Subject Keywords:Planet Formation; Tauri Star; Circumstellar Disk; Young Stellar Object; Cloud Core
Record Number:CaltechAUTHORS:20190607-144233614
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190607-144233614
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96213
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:08 Jun 2019 17:56
Last Modified:08 Jun 2019 17:56

Repository Staff Only: item control page