Dust morphology and composition in FU orionis systems

E. F. Polomski; Chick E Woodward; Elizabeth K. Holmes; Harold M. Butner; David K. Lynch; Ray W. Russell; Michael L. Sitko; Diane H. Wooden; C. M. Telesco; R. Piña

doi:10.1086/426907

Dust morphology and composition in FU orionis systems

E. F. Polomski, Chick E Woodward, Elizabeth K. Holmes, Harold M. Butner, David K. Lynch, Ray W. Russell, Michael L. Sitko, Diane H. Wooden, C. M. Telesco, R. Piña

Physics and Astronomy (Twin Cities)

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Abstract

FU Orionis stars are a small group of pre-main-sequence stars known for large-amplitude optical variability. These objects also exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present high spatial resolution mid-IR imaging and spectroscopy, submillimeter photometry, and 3-4 μm photometry of four FU Ori-class objects, RNO 1B and C, Z CMa, and Par 21, and one object classified as a pre-FU Ori star, V380 Ori. We resolve multiple IR sources and extended emission in the RNO 1B/C system, and we discuss in detail their association with disk activity and the source of the Infrared Astronomical Satellite far-IR and radio maser emission in this field. We derive dust temperatures and masses for all sources and discuss how dust composition and morphology is related to the evolutionary stage of these objects.

Original language	English (US)
Pages (from-to)	1035-1048
Number of pages	14
Journal	Astronomical Journal
Volume	129
Issue number	2
DOIs	https://doi.org/10.1086/426907
State	Published - Feb 2005

Keywords

Infrared: stars
Planetary systems: protoplanetary disks
Stars: pre-main-sequence

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title = "Dust morphology and composition in FU orionis systems",

abstract = "FU Orionis stars are a small group of pre-main-sequence stars known for large-amplitude optical variability. These objects also exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present high spatial resolution mid-IR imaging and spectroscopy, submillimeter photometry, and 3-4 μm photometry of four FU Ori-class objects, RNO 1B and C, Z CMa, and Par 21, and one object classified as a pre-FU Ori star, V380 Ori. We resolve multiple IR sources and extended emission in the RNO 1B/C system, and we discuss in detail their association with disk activity and the source of the Infrared Astronomical Satellite far-IR and radio maser emission in this field. We derive dust temperatures and masses for all sources and discuss how dust composition and morphology is related to the evolutionary stage of these objects.",

keywords = "Infrared: stars, Planetary systems: protoplanetary disks, Stars: pre-main-sequence",

author = "Polomski, {E. F.} and Woodward, {Chick E} and Holmes, {Elizabeth K.} and Butner, {Harold M.} and Lynch, {David K.} and Russell, {Ray W.} and Sitko, {Michael L.} and Wooden, {Diane H.} and Telesco, {C. M.} and R. Pi{\~n}a",

year = "2005",

month = feb,

doi = "10.1086/426907",

language = "English (US)",

volume = "129",

pages = "1035--1048",

journal = "Astronomical Journal",

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TY - JOUR

T1 - Dust morphology and composition in FU orionis systems

AU - Polomski, E. F.

AU - Woodward, Chick E

AU - Holmes, Elizabeth K.

AU - Butner, Harold M.

AU - Lynch, David K.

AU - Russell, Ray W.

AU - Sitko, Michael L.

AU - Wooden, Diane H.

AU - Telesco, C. M.

AU - Piña, R.

PY - 2005/2

Y1 - 2005/2

N2 - FU Orionis stars are a small group of pre-main-sequence stars known for large-amplitude optical variability. These objects also exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present high spatial resolution mid-IR imaging and spectroscopy, submillimeter photometry, and 3-4 μm photometry of four FU Ori-class objects, RNO 1B and C, Z CMa, and Par 21, and one object classified as a pre-FU Ori star, V380 Ori. We resolve multiple IR sources and extended emission in the RNO 1B/C system, and we discuss in detail their association with disk activity and the source of the Infrared Astronomical Satellite far-IR and radio maser emission in this field. We derive dust temperatures and masses for all sources and discuss how dust composition and morphology is related to the evolutionary stage of these objects.

AB - FU Orionis stars are a small group of pre-main-sequence stars known for large-amplitude optical variability. These objects also exhibit multiwavelength phenomena suggestive of active accretion from a circumstellar disk. We present high spatial resolution mid-IR imaging and spectroscopy, submillimeter photometry, and 3-4 μm photometry of four FU Ori-class objects, RNO 1B and C, Z CMa, and Par 21, and one object classified as a pre-FU Ori star, V380 Ori. We resolve multiple IR sources and extended emission in the RNO 1B/C system, and we discuss in detail their association with disk activity and the source of the Infrared Astronomical Satellite far-IR and radio maser emission in this field. We derive dust temperatures and masses for all sources and discuss how dust composition and morphology is related to the evolutionary stage of these objects.

KW - Infrared: stars

KW - Planetary systems: protoplanetary disks

KW - Stars: pre-main-sequence

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U2 - 10.1086/426907

DO - 10.1086/426907

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SN - 0004-6256

VL - 129

SP - 1035

EP - 1048

JO - Astronomical Journal

JF - Astronomical Journal

IS - 2

ER -

Dust morphology and composition in FU orionis systems

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Keywords

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