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Title: Accretion shocks in the laboratory: Design of an experiment to study star formation

Abstract

Here, we present the design of a laboratory-astrophysics experiment to study magnetospheric accretion relevant to young, pre-main-sequence stars. Spectra of young stars show evidence of hotspots created when streams of accreting material impact the surface of the star and create shocks. The structures that form during this process are poorly understood, as the surfaces of young stars cannot be spatially resolved. Our experiment would create a scaled "accretion shock" at a major (several kJ) laser facility. The experiment drives a plasma jet (the "accretion stream") into a solid block (the "stellar surface"), in the presence of a parallel magnetic field analogous to the star's local field.

Authors:
ORCiD logo [1];  [1];  [1];  [2]
  1. Univ. of Michigan, Ann Arbor, MI (United States)
  2. Rice Univ., Houston, TX (United States)
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
OSTI Identifier:
1452683
Alternate Identifier(s):
OSTI ID: 1397409
Grant/Contract Number:  
NA0003527; NA0002956
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
High Energy Density Physics
Additional Journal Information:
Journal Volume: 23; Journal Issue: C; Journal ID: ISSN 1574-1818
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 79 ASTRONOMY AND ASTROPHYSICS; Laboratory astrophysics; Star formation; Accretion; Shocks; Jets

Citation Formats

Young, Rachel P., Kuranz, C. C., Drake, R. P., and Hartigan, P.. Accretion shocks in the laboratory: Design of an experiment to study star formation. United States: N. p., 2017. Web. doi:10.1016/j.hedp.2017.01.004.
Young, Rachel P., Kuranz, C. C., Drake, R. P., & Hartigan, P.. Accretion shocks in the laboratory: Design of an experiment to study star formation. United States. doi:10.1016/j.hedp.2017.01.004.
Young, Rachel P., Kuranz, C. C., Drake, R. P., and Hartigan, P.. Mon . "Accretion shocks in the laboratory: Design of an experiment to study star formation". United States. doi:10.1016/j.hedp.2017.01.004. https://www.osti.gov/servlets/purl/1452683.
@article{osti_1452683,
title = {Accretion shocks in the laboratory: Design of an experiment to study star formation},
author = {Young, Rachel P. and Kuranz, C. C. and Drake, R. P. and Hartigan, P.},
abstractNote = {Here, we present the design of a laboratory-astrophysics experiment to study magnetospheric accretion relevant to young, pre-main-sequence stars. Spectra of young stars show evidence of hotspots created when streams of accreting material impact the surface of the star and create shocks. The structures that form during this process are poorly understood, as the surfaces of young stars cannot be spatially resolved. Our experiment would create a scaled "accretion shock" at a major (several kJ) laser facility. The experiment drives a plasma jet (the "accretion stream") into a solid block (the "stellar surface"), in the presence of a parallel magnetic field analogous to the star's local field.},
doi = {10.1016/j.hedp.2017.01.004},
journal = {High Energy Density Physics},
number = C,
volume = 23,
place = {United States},
year = {Mon Feb 13 00:00:00 EST 2017},
month = {Mon Feb 13 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 1 work
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