Searching for Molecular Jets from High-mass Protostars
We report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the 7 mm core...
| 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 Supplement Series |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4365/aca4c6 |
| _version_ | 1797697256064811008 |
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| author | Tatiana M. Rodríguez Peter Hofner Isaac Edelman Esteban D. Araya Viviana Rosero |
| author_facet | Tatiana M. Rodríguez Peter Hofner Isaac Edelman Esteban D. Araya Viviana Rosero |
| author_sort | Tatiana M. Rodríguez |
| collection | DOAJ |
| description | We report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the 7 mm core, and the high masses (≈100 M _⊙ ) and densities (≈10 ^7 cm ^−3 ) of the cores suggest that the central objects are very young high-mass protostars. We detected SiO J = 1–0 emission associated with six target sources. In all cases, the morphology and spectrum of the emission is consistent with what is expected for molecular jets along an outflow axis, thus confirming the jet nature of 60% of our sample. Our data suggest a positive correlation between the SiO luminosity L _SiO , and both the bolometric luminosity L _Bol and the radio luminosity S _ν d ^2 of the driving sources. |
| first_indexed | 2024-03-12T03:37:44Z |
| format | Article |
| id | doaj.art-660f4516593a4aed92d5d6e967167e83 |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-03-12T03:37:44Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-660f4516593a4aed92d5d6e967167e832023-09-03T13:08:02ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492023-01-0126423010.3847/1538-4365/aca4c6Searching for Molecular Jets from High-mass ProtostarsTatiana M. Rodríguez0https://orcid.org/0000-0003-0090-9137Peter Hofner1Isaac Edelman2https://orcid.org/0000-0001-8745-2613Esteban D. Araya3https://orcid.org/0000-0001-6755-9106Viviana Rosero4https://orcid.org/0000-0001-8596-1756Physics Department, New Mexico Tech , 801 Leroy Pl., Socorro, NM 87801, USAPhysics Department, New Mexico Tech , 801 Leroy Pl., Socorro, NM 87801, USA; Adjunct Astronomer at the National Radio Astronomy Observatory , 1003 Lopezville Road, Socorro, NM 87801, USAPhysics Department, New Mexico Tech , 801 Leroy Pl., Socorro, NM 87801, USAPhysics Department, New Mexico Tech , 801 Leroy Pl., Socorro, NM 87801, USA; Physics Department, Western Illinois University , 1 University Circle, Macomb, IL 61455, USANational Radio Astronomy Observatory , 1003 Lopezville Rd., Socorro, NM 87801, USAWe report Very Large Array observations in the Q band toward 10 ionized jet candidates to search for SiO emission, a well-known shocked gas tracer. We detected 7 mm continuum counterparts toward 90% of the jet candidates. In most cases, the jet candidate is located toward the center of the 7 mm core, and the high masses (≈100 M _⊙ ) and densities (≈10 ^7 cm ^−3 ) of the cores suggest that the central objects are very young high-mass protostars. We detected SiO J = 1–0 emission associated with six target sources. In all cases, the morphology and spectrum of the emission is consistent with what is expected for molecular jets along an outflow axis, thus confirming the jet nature of 60% of our sample. Our data suggest a positive correlation between the SiO luminosity L _SiO , and both the bolometric luminosity L _Bol and the radio luminosity S _ν d ^2 of the driving sources.https://doi.org/10.3847/1538-4365/aca4c6JetsRadio jetsStar formationProtostarsYoung stellar objects |
| spellingShingle | Tatiana M. Rodríguez Peter Hofner Isaac Edelman Esteban D. Araya Viviana Rosero Searching for Molecular Jets from High-mass Protostars The Astrophysical Journal Supplement Series Jets Radio jets Star formation Protostars Young stellar objects |
| title | Searching for Molecular Jets from High-mass Protostars |
| title_full | Searching for Molecular Jets from High-mass Protostars |
| title_fullStr | Searching for Molecular Jets from High-mass Protostars |
| title_full_unstemmed | Searching for Molecular Jets from High-mass Protostars |
| title_short | Searching for Molecular Jets from High-mass Protostars |
| title_sort | searching for molecular jets from high mass protostars |
| topic | Jets Radio jets Star formation Protostars Young stellar objects |
| url | https://doi.org/10.3847/1538-4365/aca4c6 |
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