An X-ray study of the supernova remnant G20.0-0.2 and its surroundings

Aims. We study the supernova remnant G20.0-0.2 and its surroundings to look for the high-energy counterpart of the radio nebula and to find evidence of interaction between the shock front and the interstellar medium. Methods. We used Chandra archival observations to analyze the X-ray emission from t...

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Autores principales:	Petriella, A., Paron, S.A., Giacani, E.B.
Formato:	JOUR
Materias:	ISM: clouds ISM: supernova remnants Pulsars: general Stars: formation Galactic plane surveys Interstellar mediums ISM : clouds Star-forming region Young stellar objects Electromagnetic wave emission Shock waves Surveys X ray scattering X rays Stars
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00046361_v554_n_p_Petriella
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00046361_v554_n_p_Petriella
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spelling	todo:paper_00046361_v554_n_p_Petriella2023-10-03T14:00:44Z An X-ray study of the supernova remnant G20.0-0.2 and its surroundings Petriella, A. Paron, S.A. Giacani, E.B. ISM: clouds ISM: supernova remnants Pulsars: general Stars: formation Galactic plane surveys Interstellar mediums ISM : clouds ISM: supernova remnants Pulsars: general Star-forming region Stars: formation Young stellar objects Electromagnetic wave emission Shock waves Surveys X ray scattering X rays Stars Aims. We study the supernova remnant G20.0-0.2 and its surroundings to look for the high-energy counterpart of the radio nebula and to find evidence of interaction between the shock front and the interstellar medium. Methods. We used Chandra archival observations to analyze the X-ray emission from the supernova remnant. The surrounding gas was investigated using data extracted from the Galactic Ring Survey, the VLA Galactic Plane Survey, the Galactic Legacy Infrared Midplane Survey Extraordinaire, and the Bolocam Galactic Plane Survey. Results. G20.0-0.2 shows diffuse X-ray emission from the central region of the radio remnant. Although the current data do not allow us to distinguish between a thermal or non-thermal origin for the X-ray diffuse emission, based on the radio properties we suggest a synchrotron origin as the most favorable. The hard X-ray point source CXO J182807.4-113516 appears located at the geometrical center of the remnant and is a potential candidate to be the pulsar powering the nebula. We found a molecular cloud adjacent to the flattest border of G20.0-0.2, indicating a probable interaction between the shock front of the remnant and the molecular gas. Several young stellar object candidates are found located in the brightest region of the molecular emission, as well as over a millimeter continuum source and a dark cloud. This distribution is an indication of an active star-forming region around the supernova remnant. © 2013 ESO. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046361_v554_n_p_Petriella
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	ISM: clouds ISM: supernova remnants Pulsars: general Stars: formation Galactic plane surveys Interstellar mediums ISM : clouds ISM: supernova remnants Pulsars: general Star-forming region Stars: formation Young stellar objects Electromagnetic wave emission Shock waves Surveys X ray scattering X rays Stars
spellingShingle	ISM: clouds ISM: supernova remnants Pulsars: general Stars: formation Galactic plane surveys Interstellar mediums ISM : clouds ISM: supernova remnants Pulsars: general Star-forming region Stars: formation Young stellar objects Electromagnetic wave emission Shock waves Surveys X ray scattering X rays Stars Petriella, A. Paron, S.A. Giacani, E.B. An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
topic_facet	ISM: clouds ISM: supernova remnants Pulsars: general Stars: formation Galactic plane surveys Interstellar mediums ISM : clouds ISM: supernova remnants Pulsars: general Star-forming region Stars: formation Young stellar objects Electromagnetic wave emission Shock waves Surveys X ray scattering X rays Stars
description	Aims. We study the supernova remnant G20.0-0.2 and its surroundings to look for the high-energy counterpart of the radio nebula and to find evidence of interaction between the shock front and the interstellar medium. Methods. We used Chandra archival observations to analyze the X-ray emission from the supernova remnant. The surrounding gas was investigated using data extracted from the Galactic Ring Survey, the VLA Galactic Plane Survey, the Galactic Legacy Infrared Midplane Survey Extraordinaire, and the Bolocam Galactic Plane Survey. Results. G20.0-0.2 shows diffuse X-ray emission from the central region of the radio remnant. Although the current data do not allow us to distinguish between a thermal or non-thermal origin for the X-ray diffuse emission, based on the radio properties we suggest a synchrotron origin as the most favorable. The hard X-ray point source CXO J182807.4-113516 appears located at the geometrical center of the remnant and is a potential candidate to be the pulsar powering the nebula. We found a molecular cloud adjacent to the flattest border of G20.0-0.2, indicating a probable interaction between the shock front of the remnant and the molecular gas. Several young stellar object candidates are found located in the brightest region of the molecular emission, as well as over a millimeter continuum source and a dark cloud. This distribution is an indication of an active star-forming region around the supernova remnant. © 2013 ESO.
format	JOUR
author	Petriella, A. Paron, S.A. Giacani, E.B.
author_facet	Petriella, A. Paron, S.A. Giacani, E.B.
author_sort	Petriella, A.
title	An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
title_short	An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
title_full	An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
title_fullStr	An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
title_full_unstemmed	An X-ray study of the supernova remnant G20.0-0.2 and its surroundings
title_sort	x-ray study of the supernova remnant g20.0-0.2 and its surroundings
url	http://hdl.handle.net/20.500.12110/paper_00046361_v554_n_p_Petriella
work_keys_str_mv	AT petriellaa anxraystudyofthesupernovaremnantg20002anditssurroundings AT paronsa anxraystudyofthesupernovaremnantg20002anditssurroundings AT giacanieb anxraystudyofthesupernovaremnantg20002anditssurroundings AT petriellaa xraystudyofthesupernovaremnantg20002anditssurroundings AT paronsa xraystudyofthesupernovaremnantg20002anditssurroundings AT giacanieb xraystudyofthesupernovaremnantg20002anditssurroundings
_version_	1807320374212296704

An X-ray study of the supernova remnant G20.0-0.2 and its surroundings

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