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Query : 2013MNRAS.433.1796F |
2013MNRAS.433.1796F - Mon. Not. R. Astron. Soc., 433, 1796-1801 (2013/August-2)
The possibility of a self-gravitating disc around L1527 IRS ?
FORGAN D. and RICE K.
Abstract (from CDS):
We investigate this possibility using simple self-gravitating disc models. To match the observed mass accretion rates requires a disc-to-star mass ratio of at least ∼ 0.5, which produces sub-mm fluxes that are similar to those observed for L1527 IRS in the absence of irradiation from the envelope or central star. If irradiation is significant, then the predicted fluxes exceed the observed fluxes by around an order of magnitude. Our model also indicates that the stresses produced by the gravitational instability are low enough to prevent disc fragmentation.
As such, we conclude that observations do not rule out the possibility that the disc around L1527 IRS is self-gravitating, but it is more likely that despite being a very young system, this disc may already have left the self-gravitating phase.
Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)
Journal keyword(s): planets and satellites: formation - protoplanetary discs - planetary systems - stars: pre-main-sequence
Simbad objects: 2
Number of rows : 2 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | IRAS 04368+2557 | Y*O | 04 39 53.97816 | +26 03 09.6804 | ~ | 278 | 0 | |||||
2 | NAME Taurus Complex | SFR | 04 41.0 | +25 52 | ~ | 4418 | 0 |
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