Studying the molecular ambient towards the young stellar object EGO G35.04-0.47
- Autores
- Paron, Sergio Ariel; Ortega, Martin Eduardo; Astort, Ana; Rubio, Monica; Fariña, Cecilia
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We are performing a systematic study of the interstellar medium around extended green objects (EGOs), likely massive young stellar objects driving outflows. EGO G35.04-0.47 is located towards a dark cloud at the north-western edge of an H II region. Recently, H2 jets were discovered towards this source, mainly towards its south-west, where the H2 1-0 S(1) emission peaks. Therefore, the source was catalogued as the molecular hydrogen emission-line object MHO 2429. In order to study the molecular ambient towards this star-forming site, we observed a region around the aforementioned EGO using the Atacama Submillimeter Telescope Experiment in the 12CO J = 3-2, 13CO J = 3-2, HCO+ J = 4-3, and CS J = 7-6 lines with an angular and spectral resolution of 22´´ and 0.11 km s-1, respectively. The observations revealed a molecular clump where the EGO is embedded at vLSR ? 51 km s-1, in coincidence with the velocity of a Class I 95 GHz methanol maser previously detected. Analyzing the 12CO line we discovered high velocity molecular gas in the range from 34 to 47 km s-1, most likely a blueshifted outflow driven by the EGO. The alignment and shape of this molecular structure coincide with those of the south-west lobe of MHO 2429, mainly between 46 and 47 km s-1, confirming that we are mapping its CO counterpart. Performing a spectral energy distribution analysis of EGO G35.04-0.47, we found that its central object should be an intermediate-mass young stellar object accreting mass at a rate similar to those found in some massive YSOs. We suggest that this source can become a massive YSO.
Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Astort, Ana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Rubio, Monica. Universidad de Chile. Facultad de Ciencias Fisicas y Matematicas; Chile
Fil: Fariña, Cecilia. Isaac Newton Group of Telescopes; España - Materia
-
Ism: Clouds
Ism: Hii Region
Jets
Outflows - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/17405
Ver los metadatos del registro completo
| id |
CONICETDig_be865095b8f153fb599a3cb3f9e3f489 |
|---|---|
| oai_identifier_str |
oai:ri.conicet.gov.ar:11336/17405 |
| network_acronym_str |
CONICETDig |
| repository_id_str |
3498 |
| network_name_str |
CONICET Digital (CONICET) |
| spelling |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47Paron, Sergio ArielOrtega, Martin EduardoAstort, AnaRubio, MonicaFariña, CeciliaIsm: CloudsIsm: Hii RegionJetsOutflowshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We are performing a systematic study of the interstellar medium around extended green objects (EGOs), likely massive young stellar objects driving outflows. EGO G35.04-0.47 is located towards a dark cloud at the north-western edge of an H II region. Recently, H2 jets were discovered towards this source, mainly towards its south-west, where the H2 1-0 S(1) emission peaks. Therefore, the source was catalogued as the molecular hydrogen emission-line object MHO 2429. In order to study the molecular ambient towards this star-forming site, we observed a region around the aforementioned EGO using the Atacama Submillimeter Telescope Experiment in the 12CO J = 3-2, 13CO J = 3-2, HCO+ J = 4-3, and CS J = 7-6 lines with an angular and spectral resolution of 22´´ and 0.11 km s-1, respectively. The observations revealed a molecular clump where the EGO is embedded at vLSR ? 51 km s-1, in coincidence with the velocity of a Class I 95 GHz methanol maser previously detected. Analyzing the 12CO line we discovered high velocity molecular gas in the range from 34 to 47 km s-1, most likely a blueshifted outflow driven by the EGO. The alignment and shape of this molecular structure coincide with those of the south-west lobe of MHO 2429, mainly between 46 and 47 km s-1, confirming that we are mapping its CO counterpart. Performing a spectral energy distribution analysis of EGO G35.04-0.47, we found that its central object should be an intermediate-mass young stellar object accreting mass at a rate similar to those found in some massive YSOs. We suggest that this source can become a massive YSO.Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Astort, Ana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Rubio, Monica. Universidad de Chile. Facultad de Ciencias Fisicas y Matematicas; ChileFil: Fariña, Cecilia. Isaac Newton Group of Telescopes; EspañaOxford University Press2014-02-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17405Paron, Sergio Ariel; Ortega, Martin Eduardo; Astort, Ana; Rubio, Monica; Fariña, Cecilia; Studying the molecular ambient towards the young stellar object EGO G35.04-0.47; Oxford University Press; Publications of the Astronomical Society of Japan; 66; 1; 10-2-2014; 18,1-110004-62642053-051Xenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pasj/article-lookup/doi/10.1093/pasj/pst018info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/pdf/1309.6962.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.1093/pasj/pst018info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:22:48Zoai:ri.conicet.gov.ar:11336/17405instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:22:48.502CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| title |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| spellingShingle |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 Paron, Sergio Ariel Ism: Clouds Ism: Hii Region Jets Outflows |
| title_short |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| title_full |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| title_fullStr |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| title_full_unstemmed |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| title_sort |
Studying the molecular ambient towards the young stellar object EGO G35.04-0.47 |
| dc.creator.none.fl_str_mv |
Paron, Sergio Ariel Ortega, Martin Eduardo Astort, Ana Rubio, Monica Fariña, Cecilia |
| author |
Paron, Sergio Ariel |
| author_facet |
Paron, Sergio Ariel Ortega, Martin Eduardo Astort, Ana Rubio, Monica Fariña, Cecilia |
| author_role |
author |
| author2 |
Ortega, Martin Eduardo Astort, Ana Rubio, Monica Fariña, Cecilia |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Ism: Clouds Ism: Hii Region Jets Outflows |
| topic |
Ism: Clouds Ism: Hii Region Jets Outflows |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
We are performing a systematic study of the interstellar medium around extended green objects (EGOs), likely massive young stellar objects driving outflows. EGO G35.04-0.47 is located towards a dark cloud at the north-western edge of an H II region. Recently, H2 jets were discovered towards this source, mainly towards its south-west, where the H2 1-0 S(1) emission peaks. Therefore, the source was catalogued as the molecular hydrogen emission-line object MHO 2429. In order to study the molecular ambient towards this star-forming site, we observed a region around the aforementioned EGO using the Atacama Submillimeter Telescope Experiment in the 12CO J = 3-2, 13CO J = 3-2, HCO+ J = 4-3, and CS J = 7-6 lines with an angular and spectral resolution of 22´´ and 0.11 km s-1, respectively. The observations revealed a molecular clump where the EGO is embedded at vLSR ? 51 km s-1, in coincidence with the velocity of a Class I 95 GHz methanol maser previously detected. Analyzing the 12CO line we discovered high velocity molecular gas in the range from 34 to 47 km s-1, most likely a blueshifted outflow driven by the EGO. The alignment and shape of this molecular structure coincide with those of the south-west lobe of MHO 2429, mainly between 46 and 47 km s-1, confirming that we are mapping its CO counterpart. Performing a spectral energy distribution analysis of EGO G35.04-0.47, we found that its central object should be an intermediate-mass young stellar object accreting mass at a rate similar to those found in some massive YSOs. We suggest that this source can become a massive YSO. Fil: Paron, Sergio Ariel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Ortega, Martin Eduardo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Astort, Ana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Rubio, Monica. Universidad de Chile. Facultad de Ciencias Fisicas y Matematicas; Chile Fil: Fariña, Cecilia. Isaac Newton Group of Telescopes; España |
| description |
We are performing a systematic study of the interstellar medium around extended green objects (EGOs), likely massive young stellar objects driving outflows. EGO G35.04-0.47 is located towards a dark cloud at the north-western edge of an H II region. Recently, H2 jets were discovered towards this source, mainly towards its south-west, where the H2 1-0 S(1) emission peaks. Therefore, the source was catalogued as the molecular hydrogen emission-line object MHO 2429. In order to study the molecular ambient towards this star-forming site, we observed a region around the aforementioned EGO using the Atacama Submillimeter Telescope Experiment in the 12CO J = 3-2, 13CO J = 3-2, HCO+ J = 4-3, and CS J = 7-6 lines with an angular and spectral resolution of 22´´ and 0.11 km s-1, respectively. The observations revealed a molecular clump where the EGO is embedded at vLSR ? 51 km s-1, in coincidence with the velocity of a Class I 95 GHz methanol maser previously detected. Analyzing the 12CO line we discovered high velocity molecular gas in the range from 34 to 47 km s-1, most likely a blueshifted outflow driven by the EGO. The alignment and shape of this molecular structure coincide with those of the south-west lobe of MHO 2429, mainly between 46 and 47 km s-1, confirming that we are mapping its CO counterpart. Performing a spectral energy distribution analysis of EGO G35.04-0.47, we found that its central object should be an intermediate-mass young stellar object accreting mass at a rate similar to those found in some massive YSOs. We suggest that this source can become a massive YSO. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014-02-10 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/17405 Paron, Sergio Ariel; Ortega, Martin Eduardo; Astort, Ana; Rubio, Monica; Fariña, Cecilia; Studying the molecular ambient towards the young stellar object EGO G35.04-0.47; Oxford University Press; Publications of the Astronomical Society of Japan; 66; 1; 10-2-2014; 18,1-11 0004-6264 2053-051X |
| url |
http://hdl.handle.net/11336/17405 |
| identifier_str_mv |
Paron, Sergio Ariel; Ortega, Martin Eduardo; Astort, Ana; Rubio, Monica; Fariña, Cecilia; Studying the molecular ambient towards the young stellar object EGO G35.04-0.47; Oxford University Press; Publications of the Astronomical Society of Japan; 66; 1; 10-2-2014; 18,1-11 0004-6264 2053-051X |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pasj/article-lookup/doi/10.1093/pasj/pst018 info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/pdf/1309.6962.pdf info:eu-repo/semantics/altIdentifier/doi/10.1093/pasj/pst018 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
| dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Oxford University Press |
| publisher.none.fl_str_mv |
Oxford University Press |
| dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
| reponame_str |
CONICET Digital (CONICET) |
| collection |
CONICET Digital (CONICET) |
| instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
| repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
| repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
| _version_ |
1846083375232712704 |
| score |
13.22299 |