Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images

We present a detailed analysis of the morphological properties of the Crab Nebula across the electromagnetic spectrum based on new and previous high-quality data from radio to X-rays. In the radio range we obtained an image of the entire nebula at 3 GHz with subarcsecond angular resolution using the...

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Autores principales:	Dubner, G., Castelletti, G., Kargaltsev, O., Pavlov, G.G., Bietenholz, M., Talavera, A.
Formato:	JOUR
Materias:	ISM: individual objects (Crab Nebula) ISM: supernova remnants radio continuum: ISM ultraviolet: ISM X-rays: ISM
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_0004637X_v840_n2_p_Dubner
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_0004637X_v840_n2_p_Dubner
record_format	dspace
spelling	todo:paper_0004637X_v840_n2_p_Dubner2023-10-03T14:02:42Z Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images Dubner, G. Castelletti, G. Kargaltsev, O. Pavlov, G.G. Bietenholz, M. Talavera, A. ISM: individual objects (Crab Nebula) ISM: supernova remnants radio continuum: ISM ultraviolet: ISM X-rays: ISM We present a detailed analysis of the morphological properties of the Crab Nebula across the electromagnetic spectrum based on new and previous high-quality data from radio to X-rays. In the radio range we obtained an image of the entire nebula at 3 GHz with subarcsecond angular resolution using the VLA (NRAO) and an image at 100 GHz of the central region using the ALMA array. Simultaneously with the VLA observations we performed HST WFPC3 near-infrared ( μm) and Chandra X-ray (0.5-8 keV band) observations of the central region of the nebula. In addition we produced a new UV image of the Crab Nebula at 291 nm by co-adding 75 individual exposures of the Optical-UV Monitor on board XMM-Newton. The high-angular resolution and high-dynamic range radio image at 3 GHz allowed us to improve the detection and characterization of peculiar morphological features including arches with foot brightening and intercrossed loop-like structures, likely originating in plasma confined to magnetic field lines. Based on the new radio image, we carried out a detailed multiwavelength correlation. In the central area, the comparison of the almost simultaneous images confirms that the wisps in the three spectral ranges do not generally coincide in location, the radio emission being the most discordant, which is suggestive of the existence of two different synchrotron components. The X-ray pulsar jet does not have a radio counterpart. Instead, another jet-like feature is seen in radio, though with different curvature and starting point. © 2017. The American Astronomical Society. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v840_n2_p_Dubner
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: individual objects (Crab Nebula) ISM: supernova remnants radio continuum: ISM ultraviolet: ISM X-rays: ISM
spellingShingle	ISM: individual objects (Crab Nebula) ISM: supernova remnants radio continuum: ISM ultraviolet: ISM X-rays: ISM Dubner, G. Castelletti, G. Kargaltsev, O. Pavlov, G.G. Bietenholz, M. Talavera, A. Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
topic_facet	ISM: individual objects (Crab Nebula) ISM: supernova remnants radio continuum: ISM ultraviolet: ISM X-rays: ISM
description	We present a detailed analysis of the morphological properties of the Crab Nebula across the electromagnetic spectrum based on new and previous high-quality data from radio to X-rays. In the radio range we obtained an image of the entire nebula at 3 GHz with subarcsecond angular resolution using the VLA (NRAO) and an image at 100 GHz of the central region using the ALMA array. Simultaneously with the VLA observations we performed HST WFPC3 near-infrared ( μm) and Chandra X-ray (0.5-8 keV band) observations of the central region of the nebula. In addition we produced a new UV image of the Crab Nebula at 291 nm by co-adding 75 individual exposures of the Optical-UV Monitor on board XMM-Newton. The high-angular resolution and high-dynamic range radio image at 3 GHz allowed us to improve the detection and characterization of peculiar morphological features including arches with foot brightening and intercrossed loop-like structures, likely originating in plasma confined to magnetic field lines. Based on the new radio image, we carried out a detailed multiwavelength correlation. In the central area, the comparison of the almost simultaneous images confirms that the wisps in the three spectral ranges do not generally coincide in location, the radio emission being the most discordant, which is suggestive of the existence of two different synchrotron components. The X-ray pulsar jet does not have a radio counterpart. Instead, another jet-like feature is seen in radio, though with different curvature and starting point. © 2017. The American Astronomical Society. All rights reserved.
format	JOUR
author	Dubner, G. Castelletti, G. Kargaltsev, O. Pavlov, G.G. Bietenholz, M. Talavera, A.
author_facet	Dubner, G. Castelletti, G. Kargaltsev, O. Pavlov, G.G. Bietenholz, M. Talavera, A.
author_sort	Dubner, G.
title	Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
title_short	Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
title_full	Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
title_fullStr	Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
title_full_unstemmed	Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
title_sort	morphological properties of the crab nebula: a detailed multiwavelength study based on new vla, hst, chandra, and xmm-newton images
url	http://hdl.handle.net/20.500.12110/paper_0004637X_v840_n2_p_Dubner
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_version_	1807318867384467456

Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images

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