Thermal-infrared detection of optical outflow sources in OMC-1 South

Nathan Smith; John Bally; Ralph Y. Shuping; Mark Morris; Thomas L. Hayward

doi:10.1086/423318

Thermal-infrared detection of optical outflow sources in OMC-1 South

Nathan Smith, John Bally, Ralph Y. Shuping, Mark Morris, Thomas L. Hayward

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

27 Scopus citations

Abstract

We present the first thermal-infrared imaging photometry for several embedded sources in the OMC-1 South cloud core in the Orion Nebula, and we propose that some of these drive the optical Herbig-Haro jets emerging from the region. Thermal-infrared images at 8.8 and 11.7 μm obtained at Gemini South show a handful of sources in OMC-1 South with no visual-wavelength counterparts, although a few can be seen in recent near-infrared data. For the three brightest mid-infrared sources, we also present 18.75 μm photometry obtained with the Keck telescope. The most prominent blueshifted outflows in the Orion Nebula at visual wavelengths, such as HH 202, HH 203/204, HH 529, and HH 269, all originate from OMC-1S. The brightest infrared source in OMC-1S at 11.7 μm is located at the base of the prominent jet that powers HH 202 and is likely to be the sought-after driver of this outflow. The second brightest infrared source is located at the base of the HH 529 jet. We consider the possibility that HH 203/204 and HH 269 trace parts of a single bent outflow from the third brightest infrared source. While there may be some lingering ambiguity about which infrared stars drive specific jets, there is now a sufficient number of embedded sources to plausibly account for the multiple outflows from OMC-1S.

Original language	English (US)
Pages (from-to)	L117-L120
Journal	Astrophysical Journal
Volume	610
Issue number	2 II
DOIs	https://doi.org/10.1086/423318
State	Published - Aug 1 2004
Externally published	Yes

Keywords

H II regions
ISM: Herbig-Haro objects
ISM: individual (Orion Nebula)
ISM: jets and outflows
Stars: formation
Stars: pre-main-sequence

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/423318

Cite this

@article{29325254312c4fe6a9f018f6041a8c08,

title = "Thermal-infrared detection of optical outflow sources in OMC-1 South",

abstract = "We present the first thermal-infrared imaging photometry for several embedded sources in the OMC-1 South cloud core in the Orion Nebula, and we propose that some of these drive the optical Herbig-Haro jets emerging from the region. Thermal-infrared images at 8.8 and 11.7 μm obtained at Gemini South show a handful of sources in OMC-1 South with no visual-wavelength counterparts, although a few can be seen in recent near-infrared data. For the three brightest mid-infrared sources, we also present 18.75 μm photometry obtained with the Keck telescope. The most prominent blueshifted outflows in the Orion Nebula at visual wavelengths, such as HH 202, HH 203/204, HH 529, and HH 269, all originate from OMC-1S. The brightest infrared source in OMC-1S at 11.7 μm is located at the base of the prominent jet that powers HH 202 and is likely to be the sought-after driver of this outflow. The second brightest infrared source is located at the base of the HH 529 jet. We consider the possibility that HH 203/204 and HH 269 trace parts of a single bent outflow from the third brightest infrared source. While there may be some lingering ambiguity about which infrared stars drive specific jets, there is now a sufficient number of embedded sources to plausibly account for the multiple outflows from OMC-1S.",

keywords = "H II regions, ISM: Herbig-Haro objects, ISM: individual (Orion Nebula), ISM: jets and outflows, Stars: formation, Stars: pre-main-sequence",

author = "Nathan Smith and John Bally and Shuping, {Ralph Y.} and Mark Morris and Hayward, {Thomas L.}",

note = "Funding Information: Support for N. S. was provided by NASA through grant HF-01166.01A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. Additional support was provided by NSF grant AST 98-19820 and NASA grants NCC2-1052 and NAG-12279 to the University of Colorado. Funding Information: 1Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (US), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil), and CONICET (Argentina).",

year = "2004",

month = aug,

day = "1",

doi = "10.1086/423318",

language = "English (US)",

volume = "610",

pages = "L117--L120",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2 II",

}

TY - JOUR

T1 - Thermal-infrared detection of optical outflow sources in OMC-1 South

AU - Smith, Nathan

AU - Bally, John

AU - Shuping, Ralph Y.

AU - Morris, Mark

AU - Hayward, Thomas L.

N1 - Funding Information: Support for N. S. was provided by NASA through grant HF-01166.01A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. Additional support was provided by NSF grant AST 98-19820 and NASA grants NCC2-1052 and NAG-12279 to the University of Colorado. Funding Information: 1Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (US), the Particle Physics and Astronomy Research Council (UK), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil), and CONICET (Argentina).

PY - 2004/8/1

Y1 - 2004/8/1

N2 - We present the first thermal-infrared imaging photometry for several embedded sources in the OMC-1 South cloud core in the Orion Nebula, and we propose that some of these drive the optical Herbig-Haro jets emerging from the region. Thermal-infrared images at 8.8 and 11.7 μm obtained at Gemini South show a handful of sources in OMC-1 South with no visual-wavelength counterparts, although a few can be seen in recent near-infrared data. For the three brightest mid-infrared sources, we also present 18.75 μm photometry obtained with the Keck telescope. The most prominent blueshifted outflows in the Orion Nebula at visual wavelengths, such as HH 202, HH 203/204, HH 529, and HH 269, all originate from OMC-1S. The brightest infrared source in OMC-1S at 11.7 μm is located at the base of the prominent jet that powers HH 202 and is likely to be the sought-after driver of this outflow. The second brightest infrared source is located at the base of the HH 529 jet. We consider the possibility that HH 203/204 and HH 269 trace parts of a single bent outflow from the third brightest infrared source. While there may be some lingering ambiguity about which infrared stars drive specific jets, there is now a sufficient number of embedded sources to plausibly account for the multiple outflows from OMC-1S.

AB - We present the first thermal-infrared imaging photometry for several embedded sources in the OMC-1 South cloud core in the Orion Nebula, and we propose that some of these drive the optical Herbig-Haro jets emerging from the region. Thermal-infrared images at 8.8 and 11.7 μm obtained at Gemini South show a handful of sources in OMC-1 South with no visual-wavelength counterparts, although a few can be seen in recent near-infrared data. For the three brightest mid-infrared sources, we also present 18.75 μm photometry obtained with the Keck telescope. The most prominent blueshifted outflows in the Orion Nebula at visual wavelengths, such as HH 202, HH 203/204, HH 529, and HH 269, all originate from OMC-1S. The brightest infrared source in OMC-1S at 11.7 μm is located at the base of the prominent jet that powers HH 202 and is likely to be the sought-after driver of this outflow. The second brightest infrared source is located at the base of the HH 529 jet. We consider the possibility that HH 203/204 and HH 269 trace parts of a single bent outflow from the third brightest infrared source. While there may be some lingering ambiguity about which infrared stars drive specific jets, there is now a sufficient number of embedded sources to plausibly account for the multiple outflows from OMC-1S.

KW - H II regions

KW - ISM: Herbig-Haro objects

KW - ISM: individual (Orion Nebula)

KW - ISM: jets and outflows

KW - Stars: formation

KW - Stars: pre-main-sequence

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U2 - 10.1086/423318

DO - 10.1086/423318

M3 - Article

AN - SCOPUS:4043121145

SN - 0004-637X

VL - 610

SP - L117-L120

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

Thermal-infrared detection of optical outflow sources in OMC-1 South

Abstract

Keywords

ASJC Scopus subject areas

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