IRAS 04302+2247: Butterfly star in Taurus!
We present near infrared observations of IRAS 04302+2247, a Class I protostar in the Taurus-Auriga molecular cloud complex whose equatorial plane is inclined precisely edge-on to the line of sight (i = 90 degrees +/- 4 degrees). This system displays a unique quadrupolar morphology, which had not bee...
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| Format: | Conference item |
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1997
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| _version_ | 1826260276188545024 |
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| author | Lucas, P Roche, P |
| author_facet | Lucas, P Roche, P |
| author_sort | Lucas, P |
| collection | OXFORD |
| description | We present near infrared observations of IRAS 04302+2247, a Class I protostar in the Taurus-Auriga molecular cloud complex whose equatorial plane is inclined precisely edge-on to the line of sight (i = 90 degrees +/- 4 degrees). This system displays a unique quadrupolar morphology, which had not been previously predicted in any simulations of a single protostar. We use the Monte Carlo method to tailor a model to our imaging and polarimetric data, and we explain the quadrupolar structure in terms of a dusty jet or outflow which lies perpendicular to the equatorial plane. We constrain the circumstellar structure to the form of an equatorially condensed envelope with a concave bipolar cavity. The circumstellar disk is not seen, which requires that it is physically thin. With its convenient orientation and proximity (d = 140pc) this system should yield many insights into the Class I phase of evolution. |
| first_indexed | 2024-03-06T19:03:06Z |
| format | Conference item |
| id | oxford-uuid:1439a89b-6746-43d4-932b-46e26fb685f8 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:03:06Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:1439a89b-6746-43d4-932b-46e26fb685f82022-03-26T10:18:24ZIRAS 04302+2247: Butterfly star in Taurus!Conference itemhttp://purl.org/coar/resource_type/c_5794uuid:1439a89b-6746-43d4-932b-46e26fb685f8Symplectic Elements at Oxford1997Lucas, PRoche, PWe present near infrared observations of IRAS 04302+2247, a Class I protostar in the Taurus-Auriga molecular cloud complex whose equatorial plane is inclined precisely edge-on to the line of sight (i = 90 degrees +/- 4 degrees). This system displays a unique quadrupolar morphology, which had not been previously predicted in any simulations of a single protostar. We use the Monte Carlo method to tailor a model to our imaging and polarimetric data, and we explain the quadrupolar structure in terms of a dusty jet or outflow which lies perpendicular to the equatorial plane. We constrain the circumstellar structure to the form of an equatorially condensed envelope with a concave bipolar cavity. The circumstellar disk is not seen, which requires that it is physically thin. With its convenient orientation and proximity (d = 140pc) this system should yield many insights into the Class I phase of evolution. |
| spellingShingle | Lucas, P Roche, P IRAS 04302+2247: Butterfly star in Taurus! |
| title | IRAS 04302+2247: Butterfly star in Taurus! |
| title_full | IRAS 04302+2247: Butterfly star in Taurus! |
| title_fullStr | IRAS 04302+2247: Butterfly star in Taurus! |
| title_full_unstemmed | IRAS 04302+2247: Butterfly star in Taurus! |
| title_short | IRAS 04302+2247: Butterfly star in Taurus! |
| title_sort | iras 04302 2247 butterfly star in taurus |
| work_keys_str_mv | AT lucasp iras043022247butterflystarintaurus AT rochep iras043022247butterflystarintaurus |