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Conference Paper: Refining the UKST Hα survey's PN database using MSX
Title | Refining the UKST Hα survey's PN database using MSX |
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Authors | |
Issue Date | 1-Jan-2003 |
Publisher | Astronomical Society of the Pacific |
Abstract | We are combining images in the mid-infrared (from MSX, the US Midcourse Space Experiment) with those from the high resolution UKST/AAO Halpha survey of the Galactic Plane to investigate the relationship between the mid-infrared (MIR) and optical emission line properties of candidate Planetary Nebulae (PN) discovered by the Ha survey. Preliminary results indicate that only 10-20% of likely bona fide PN have a counterpart detected in the MIR. By sharp contrast one can readily recognize pre-main- sequence objects and HII regions emitting Ha and largely embedded in dust by the simultaneous presence of 8.3 and 21.3 mum emission suggestive of dust spanning a variety of temperatures. The sharpest criteria for recognizing true PN appear to be optical morphology and spectra (particularly the presence of [OIII]), and, where detected, MIR characteristics. |
Persistent Identifier | http://hdl.handle.net/10722/342821 |
ISBN | |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Cohen, M | - |
dc.contributor.author | Parker, QA | - |
dc.date.accessioned | 2024-05-02T03:06:06Z | - |
dc.date.available | 2024-05-02T03:06:06Z | - |
dc.date.issued | 2003-01-01 | - |
dc.identifier.isbn | 1-58381-148-6 | - |
dc.identifier.issn | 0074-1809 | - |
dc.identifier.uri | http://hdl.handle.net/10722/342821 | - |
dc.description.abstract | We are combining images in the mid-infrared (from MSX, the US Midcourse Space Experiment) with those from the high resolution UKST/AAO Halpha survey of the Galactic Plane to investigate the relationship between the mid-infrared (MIR) and optical emission line properties of candidate Planetary Nebulae (PN) discovered by the Ha survey. Preliminary results indicate that only 10-20% of likely bona fide PN have a counterpart detected in the MIR. By sharp contrast one can readily recognize pre-main- sequence objects and HII regions emitting Ha and largely embedded in dust by the simultaneous presence of 8.3 and 21.3 mum emission suggestive of dust spanning a variety of temperatures. The sharpest criteria for recognizing true PN appear to be optical morphology and spectra (particularly the presence of [OIII]), and, where detected, MIR characteristics. | - |
dc.language | eng | - |
dc.publisher | Astronomical Society of the Pacific | - |
dc.relation.ispartof | Proceedings of the 195th Symposium of the International Astronomical Union --- Highly Energetic Physical Processes and Mechanisms for Emission from Astrophysical Plasmas | - |
dc.title | Refining the UKST Hα survey's PN database using MSX | - |
dc.type | Conference_Paper | - |
dc.identifier.issue | 209 | - |
dc.identifier.spage | 33 | - |
dc.identifier.epage | 40 | - |
dc.identifier.isi | WOS:000187344400004 | - |
dc.publisher.place | SAN FRANCISCO | - |
dc.identifier.issnl | 0074-1809 | - |