Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N
This paper presents the results of full polarization observations of the massive star-forming region W75N, conducted with ∼3″ spatial resolutions at 345 GHz using the Submillimeter Array. The magnetic field structures in the dense cores of the region are derived using the linearly polarized continuu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/ace690 |
| _version_ | 1797694435583066112 |
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| author | Lingzhen Zeng Qizhou Zhang Felipe O. Alves Tao-Chung Ching Josep M. Girart Junhao Liu |
| author_facet | Lingzhen Zeng Qizhou Zhang Felipe O. Alves Tao-Chung Ching Josep M. Girart Junhao Liu |
| author_sort | Lingzhen Zeng |
| collection | DOAJ |
| description | This paper presents the results of full polarization observations of the massive star-forming region W75N, conducted with ∼3″ spatial resolutions at 345 GHz using the Submillimeter Array. The magnetic field structures in the dense cores of the region are derived using the linearly polarized continuum emission. The overall magnetic field strength and orientation are found to agree with those from the previous observations. The plane-of-sky component of the magnetic field in the region was calculated to be ∼0.8 ± 0.1 mG using the angular dispersion function method. Further analyses involving the polarization-intensity gradient-local gravity method and H ^13 CO ^+ (4–3) line data indicated that the cloud is undergoing global gravitational collapse and the magnetic field is shaped by gravity and outflows in the dense core regions. |
| first_indexed | 2024-03-12T02:57:56Z |
| format | Article |
| id | doaj.art-420eac23124c469994a45467846b74c7 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T02:57:56Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-420eac23124c469994a45467846b74c72023-09-03T15:11:02ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195419910.3847/1538-4357/ace690Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75NLingzhen Zeng0https://orcid.org/0000-0001-6924-9072Qizhou Zhang1https://orcid.org/0000-0003-2384-6589Felipe O. Alves2https://orcid.org/0000-0002-7945-064XTao-Chung Ching3https://orcid.org/0000-0001-8516-2532Josep M. Girart4https://orcid.org/0000-0002-3829-5591Junhao Liu5https://orcid.org/0000-0002-4774-2998Center for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA ; lingzhen.zeng@cfa.harvard.eduCenter for Astrophysics ∣ Harvard & Smithsonian , 60 Garden Street, Cambridge, MA 02138, USA ; lingzhen.zeng@cfa.harvard.eduCenter for Astrochemical Studies, Max-Planck-Institut für extraterrestrische Physik (MPE) , Gieβenbachstr. 1, D-85741 Garching, GermanyResearch Center for Intelligent Computing Platforms , Zhejiang Lab, Hangzhou 311100, People's Republic of China; National Radio Astronomy Observatory , 1003 Lopezville Road, Socorro, NM 87801, USAInstitut de Ciències de l’Espai (ICE) , CSIC, Can Magrans s/n, E-08193 Cerdanyola del Vallès, Catalonia, Spain; Institut d’Estudis Espacials de Catalunya (IEEC) , E-08034 Barcelona, Catalonia, SpainEast Asian Observatory , 660 N. A’ohōkū Place, University Park, Hilo, HI 96720, USAThis paper presents the results of full polarization observations of the massive star-forming region W75N, conducted with ∼3″ spatial resolutions at 345 GHz using the Submillimeter Array. The magnetic field structures in the dense cores of the region are derived using the linearly polarized continuum emission. The overall magnetic field strength and orientation are found to agree with those from the previous observations. The plane-of-sky component of the magnetic field in the region was calculated to be ∼0.8 ± 0.1 mG using the angular dispersion function method. Further analyses involving the polarization-intensity gradient-local gravity method and H ^13 CO ^+ (4–3) line data indicated that the cloud is undergoing global gravitational collapse and the magnetic field is shaped by gravity and outflows in the dense core regions.https://doi.org/10.3847/1538-4357/ace690Circumstellar matterInterstellar mediumMagnetic fieldsStar formation |
| spellingShingle | Lingzhen Zeng Qizhou Zhang Felipe O. Alves Tao-Chung Ching Josep M. Girart Junhao Liu Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N The Astrophysical Journal Circumstellar matter Interstellar medium Magnetic fields Star formation |
| title | Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N |
| title_full | Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N |
| title_fullStr | Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N |
| title_full_unstemmed | Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N |
| title_short | Submillimeter Observations of Magnetic Fields in Massive Star-forming Region W75N |
| title_sort | submillimeter observations of magnetic fields in massive star forming region w75n |
| topic | Circumstellar matter Interstellar medium Magnetic fields Star formation |
| url | https://doi.org/10.3847/1538-4357/ace690 |
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