Forming the Dusty Ring in HR4796A

SJ Kenyon; Kenneth Wood; BA Whitney; MJ Wolff

Forming the Dusty Ring in HR4796A

SJ Kenyon
, Kenneth Wood
, BA Whitney
, MJ Wolff

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We describe planetesimal accretion calculations for the dusty ring observed in the nearby AO 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 similar to 10 Myr. The ring has a radial optical depth of similar to 1. These results agree with limits derived from infrared images and from the excess infrared luminosity.

Original language	English
Pages (from-to)	L119
Number of pages	5
Journal	Astrophysical Journal
Volume	524
Publication status	Published - 20 Oct 1999

Keywords

circumstellar matter
planetary systems
solar system : formation
stars : formation
stars : individual (HR 4796A)
BETA-PICTORIS
GIANT PLANETS
GAS
AGE

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title = "Forming the Dusty Ring in HR4796A",

abstract = "We describe planetesimal accretion calculations for the dusty ring observed in the nearby AO 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 similar to 10 Myr. The ring has a radial optical depth of similar to 1. These results agree with limits derived from infrared images and from the excess infrared luminosity.",

keywords = "circumstellar matter, planetary systems, solar system : formation, stars : formation, stars : individual (HR 4796A), BETA-PICTORIS, GIANT PLANETS, GAS, AGE",

author = "SJ Kenyon and Kenneth Wood and BA Whitney and MJ Wolff",

year = "1999",

month = oct,

day = "20",

language = "English",

volume = "524",

pages = "L119",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

}

TY - JOUR

T1 - Forming the Dusty Ring in HR4796A

AU - Kenyon, SJ

AU - Wood, Kenneth

AU - Whitney, BA

AU - Wolff, MJ

PY - 1999/10/20

Y1 - 1999/10/20

N2 - We describe planetesimal accretion calculations for the dusty ring observed in the nearby AO 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 similar to 10 Myr. The ring has a radial optical depth of similar to 1. These results agree with limits derived from infrared images and from the excess infrared luminosity.

AB - We describe planetesimal accretion calculations for the dusty ring observed in the nearby AO 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 similar to 10 Myr. The ring has a radial optical depth of similar to 1. These results agree with limits derived from infrared images and from the excess infrared luminosity.

KW - circumstellar matter

KW - planetary systems

KW - solar system : formation

KW - stars : formation

KW - stars : individual (HR 4796A)

KW - BETA-PICTORIS

KW - GIANT PLANETS

KW - GAS

KW - AGE

M3 - Article

SN - 0004-637X

VL - 524

SP - L119

JO - Astrophysical Journal

JF - Astrophysical Journal

ER -

Forming the Dusty Ring in HR4796A

Abstract

Keywords

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