1999ApJ...524L.119K

Query : 1999ApJ...524L.119K

1999ApJ...524L.119K - Astrophys. J., 524, L119-L123 (1999/October-3)

Forming the dusty ring in HR 4796A.

KENYON S.J., WOOD K., WHITNEY B.A. and WOLFF M.J.

Abstract (from CDS):

We describe planetesimal accretion calculations for the dusty ring observed in the nearby A0 star HR 4796A. Models with initial masses of 10-20 times the minimum-mass solar nebula produce a ring with a width of 7-15 AU and a height of 0.3-0.6 AU at 70 AU in ∼10 Myr. The ring has a radial optical depth of ∼1. These results agree with limits derived from infrared images and from the excess infrared luminosity.

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Journal keyword(s): Stars: Circumstellar Matter - Stars: Planetary Systems - Solar System: Formation - Stars: Formation - Stars: Individual: Bright Star Number: HR 4796A

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
2 HD 98800 TT* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 401 0
3 HD 108970 * 12 32 09.9757273920 -73 00 03.804565428   6.984 5.874     K1III 28 0
4 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
5 HD 141569 Or* 15 49 57.7482550392 -03 55 16.341617064 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 578 0
6 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1

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