File Download

There are no files associated with this item.

Supplementary

Conference Paper: The mutliple lobes and geometric model of Hubble 12: a young planetary nebula with two pairs of H2 knots

TitleThe mutliple lobes and geometric model of Hubble 12: a young planetary nebula with two pairs of H2 knots
Authors
Hsia, CChau, WCZhang, YKwok, S
Issue Date2015
Publisher29th IAU General Assembly.
Citation
The 29th General Assembly of the International Astronomical Union (IAU), Honlolulu, HI., 3-14 August 2015. How to Cite?
AbstractHubble 12 (Hb 12) is a member of the rare group of planetary nebulae (PNs) exhibiting nested shells. Its intrinsic structures and shaping mechanism are still not fully understood. We present new near-infrared narrow-band imaging observations of Hb 12 using Wide-field InfraRed Camera on the Canada-France-Hawaii Telescope (CFHT). Combining Hubble Space Telescope optical imaging and CFHT observations, we find a number of co-axial rings aligned with the bipolar lobes and two pairs of separate knots with different orientations. These rings are thought to be the manifestation of a time-variable, collimated fast wind of bipolar lobes interacting with surrounding asymptotic giant branch circumstellar medium. The existence of knots with different orientations suggests that this PN hosts a bipolar, rotating, episodic jet (BRET). We construct a three-dimensional model that allows the visualization of the nebula viewed from different orientations, and infer that this PN might have intrinsic structures similar to the young multipolar PNs, Hen 2-320 and M 2-9.
DescriptionFM 4: Poster Session: abstract no. FM4p.18
Persistent Identifierhttp://hdl.handle.net/10722/217704

 

DC FieldValueLanguage
dc.contributor.authorHsia, C-
dc.contributor.authorChau, WC-
dc.contributor.authorZhang, Y-
dc.contributor.authorKwok, S-
dc.date.accessioned2015-09-18T06:10:46Z-
dc.date.available2015-09-18T06:10:46Z-
dc.date.issued2015-
dc.identifier.citationThe 29th General Assembly of the International Astronomical Union (IAU), Honlolulu, HI., 3-14 August 2015.-
dc.identifier.urihttp://hdl.handle.net/10722/217704-
dc.descriptionFM 4: Poster Session: abstract no. FM4p.18-
dc.description.abstractHubble 12 (Hb 12) is a member of the rare group of planetary nebulae (PNs) exhibiting nested shells. Its intrinsic structures and shaping mechanism are still not fully understood. We present new near-infrared narrow-band imaging observations of Hb 12 using Wide-field InfraRed Camera on the Canada-France-Hawaii Telescope (CFHT). Combining Hubble Space Telescope optical imaging and CFHT observations, we find a number of co-axial rings aligned with the bipolar lobes and two pairs of separate knots with different orientations. These rings are thought to be the manifestation of a time-variable, collimated fast wind of bipolar lobes interacting with surrounding asymptotic giant branch circumstellar medium. The existence of knots with different orientations suggests that this PN hosts a bipolar, rotating, episodic jet (BRET). We construct a three-dimensional model that allows the visualization of the nebula viewed from different orientations, and infer that this PN might have intrinsic structures similar to the young multipolar PNs, Hen 2-320 and M 2-9.-
dc.languageeng-
dc.publisher29th IAU General Assembly. -
dc.relation.ispartofIAU General Assembly 2015-
dc.titleThe mutliple lobes and geometric model of Hubble 12: a young planetary nebula with two pairs of H2 knots-
dc.typeConference_Paper-
dc.identifier.emailHsia, C: xiazh@hku.hk-
dc.identifier.emailZhang, Y: zhangy96@hku.hk-
dc.identifier.emailKwok, S: deannote@hku.hk-
dc.identifier.authorityHsia, C=rp00706-
dc.identifier.authorityZhang, Y=rp00841-
dc.identifier.authorityKwok, S=rp00716-
dc.identifier.hkuros251737-
dc.publisher.placeUnited States-

Export via OAI-PMH Interface in XML Formats

OR

Export to Other Non-XML Formats