X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248

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Fil: López Santiago, J. Institute of Astronomy and Geophysics, Universidad Complutense de Madrid, España.

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Detalles Bibliográficos
Autores principales: López Santiago, Javier, Bonito, Rosaria, Orellana, Mariana Dominga, Miceli, Marcos, Orlando, Salvatore, Ustamujic, Sabina, Albacete Colombo, Juan Facundo, de Castro, Elisa, Gómez de Castro, Ana Inés
Lenguaje:Inglés
Publicado: American Astronomical Society 2015
Materias:
Astronomía
hydrodynamics
Herbig–Haro objects
X-rays: ISM
ISM: jets and outflows
Acceso en línea:https://iopscience.iop.org/article/10.1088/0004-637X/806/1/53/pdf
http://rid.unrn.edu.ar/handle/20.500.12049/8707
Aporte de:
Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN) de Universidad Nacional de Río Negro
id I65-R171-20.500.12049-8707
record_format dspace
institution Universidad Nacional de Río Negro
institution_str I-65
repository_str R-171
collection Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN)
language Inglés
orig_language_str_mv en
topic Astronomía
hydrodynamics
Herbig–Haro objects
X-rays: ISM
ISM: jets and outflows
Astronomía
spellingShingle Astronomía
hydrodynamics
Herbig–Haro objects
X-rays: ISM
ISM: jets and outflows
Astronomía
López Santiago, Javier
Bonito, Rosaria
Orellana, Mariana Dominga
Miceli, Marcos
Orlando, Salvatore
Ustamujic, Sabina
Albacete Colombo, Juan Facundo
de Castro, Elisa
Gómez de Castro, Ana Inés
X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
topic_facet Astronomía
hydrodynamics
Herbig–Haro objects
X-rays: ISM
ISM: jets and outflows
Astronomía
description Fil: López Santiago, J. Institute of Astronomy and Geophysics, Universidad Complutense de Madrid, España.
author López Santiago, Javier
Bonito, Rosaria
Orellana, Mariana Dominga
Miceli, Marcos
Orlando, Salvatore
Ustamujic, Sabina
Albacete Colombo, Juan Facundo
de Castro, Elisa
Gómez de Castro, Ana Inés
author_facet López Santiago, Javier
Bonito, Rosaria
Orellana, Mariana Dominga
Miceli, Marcos
Orlando, Salvatore
Ustamujic, Sabina
Albacete Colombo, Juan Facundo
de Castro, Elisa
Gómez de Castro, Ana Inés
author_sort López Santiago, Javier
title X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
title_short X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
title_full X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
title_fullStr X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
title_full_unstemmed X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248
title_sort x-ray emission from stellar jets by collision against high-density molecular clouds: an application to hh 248
publisher American Astronomical Society
publishDate 2015
url https://iopscience.iop.org/article/10.1088/0004-637X/806/1/53/pdf
http://rid.unrn.edu.ar/handle/20.500.12049/8707
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AT orellanamarianadominga xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT micelimarcos xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT orlandosalvatore xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT ustamujicsabina xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT albacetecolombojuanfacundo xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT decastroelisa xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
AT gomezdecastroanaines xrayemissionfromstellarjetsbycollisionagainsthighdensitymolecularcloudsanapplicationtohh248
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spelling I65-R171-20.500.12049-87072023-09-13T15:32:49Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2015-04 Fil: López Santiago, J. Institute of Astronomy and Geophysics, Universidad Complutense de Madrid, España. Fil: Bonito, R. University of Palermo, Department of Physics; Astronomical Observatory of Palermo, Italy. Fil: Orellana, Mariana. Universidad Nacional de Río Negro. Río Negro, Argentina. Fil: Miceli, M. Astronomical Observatory of Palermo, Italy. Fil: Orlando, S. University of Palermo, Department of Physics, Italy. Fil: Ustamujic, S. Institute of Astronomy and Geophysics, Madrid, España. Fil: Albacete Colombo, J. F. Universidad Nacional de Río Negro. Río Negro, Argentina. Fil: de Castro, E. Complutense University of Madrid, Department of Astronomy, España. Fil: Gómez de Castro, A. I. Institute of Astronomy and Geophysics, Madrid, España. X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248 López Santiago, Javier Bonito, Rosaria Orellana, Mariana Dominga Miceli, Marcos Orlando, Salvatore Ustamujic, Sabina Albacete Colombo, Juan Facundo de Castro, Elisa Gómez de Castro, Ana Inés Astronomía hydrodynamics Herbig–Haro objects X-rays: ISM ISM: jets and outflows Astronomía We investigate the plausibility of detecting X-ray emission from a stellar jet that impacts a dense molecular cloud, a scenario that may be typical for classical T Tauri stars with jets in dense star-forming complexes. We first model the impact of a jet against a dense cloud using two-dimensional axisymmetric hydrodynamic simulations, exploring different configurations of the ambient environment. Then, we compare our results with XMM-Newton observations of the Herbig-Haro object HH 248, where extended X-ray emission aligned with the optical knots is detected at the edge of the nearby IC 434 cloud. Our simulations show that a jet can produce plasma with temperatures up to 10<SUP>7</SUP> K, consistent with production of X-ray emission, after impacting a dense cloud. We find that jets denser than the ambient medium but less dense than the cloud produce detectable X-ray emission only at impact with the cloud. From an exploration of the model parameter space, we constrain the physical conditions (jet density and velocity and cloud density) that reproduce the intrinsic luminosity and emission measure of the X-ray source possibly associated with HH 248 well. Thus, we suggest that the extended X-ray source close to HH 248 corresponds to a jet impacting a dense cloud. true Investigamos la plausibilidad de detectar la emisión de rayos X de un chorro estelar que impacta en una densa nube molecular, un escenario que puede ser típico de las estrellas clásicas T Tauri con chorros en densos complejos de formación estelar. Primero modelamos el impacto de un chorro contra una nube densa utilizando simulaciones hidrodinámicas bidimensionales axisimétricas, explorando diferentes configuraciones del entorno ambiental. Luego, comparamos nuestros resultados con las observaciones de XMM-Newton del objeto Herbig-Haro HH 248, donde se detecta una emisión de rayos X extendida alineada con los nudos ópticos en el borde de la nube IC 434 cercana. Nuestras simulaciones muestran que un chorro puede producir plasma con temperaturas de hasta 10<SUP>7</SUP> K, consistentes con la producción de emisión de rayos X, después de impactar una nube densa. Encontramos que los chorros más densos que el medio ambiente pero menos densos que la nube producen una emisión de rayos X detectable solo al impactar con la nube. A partir de una exploración del espacio de parámetros del modelo, restringimos las condiciones físicas (densidad y velocidad del chorro y densidad de la nube) que reproducen la luminosidad intrínseca y la medida de emisión de la fuente de rayos X posiblemente asociada con el pozo HH 248. Por lo tanto, sugerimos que la fuente de rayos X extendida cerca de HH 248 corresponde a un chorro que impacta en una nube densa. J. López-Santiago et al (2015) X-ray Emission from Stellar Jets by Collision against High-density Molecular Clouds: an Application to HH 248. Astrophysical Journal; 806 (1); 1-8 1538-4357 https://iopscience.iop.org/article/10.1088/0004-637X/806/1/53/pdf http://rid.unrn.edu.ar/handle/20.500.12049/8707 10.1088/0004-637X/806/1/53 en https://iopscience.iop.org/journal/0004-637X 806 (1) Astrophysical Journal American Astronomical Society

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