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dc.contributor.author
Dubner, Gloria Mabel
dc.contributor.author
Castelletti, Gabriela Marta
dc.contributor.author
Kargaltsev, O.
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Pavlov, G. G.
dc.contributor.author
Bietenholz, M.
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Talavera, Angel Daniel
dc.date.available
2018-10-31T17:15:15Z
dc.date.issued
2017-04
dc.identifier.citation
Dubner, Gloria Mabel; Castelletti, Gabriela Marta; Kargaltsev, O.; Pavlov, G. G.; Bietenholz, M.; et al.; Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images; IOP Publishing; Astrophysical Journal; 840; 2; 4-2017; 1-12
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/63387
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ism: Individual Objects (Crab Nebula)
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Ism: Supernova Remnants
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Radio Continuum: Ism
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Ultraviolet: Ism
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X-Rays: Ism
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Morphological Properties of the Crab Nebula: A Detailed Multiwavelength Study Based on New VLA, HST, Chandra, and XMM-Newton Images
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-23T18:42:01Z
dc.journal.volume
840
dc.journal.number
2
dc.journal.pagination
1-12
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Dubner, Gloria Mabel. 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
dc.description.fil
Fil: Castelletti, Gabriela Marta. 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
dc.description.fil
Fil: Kargaltsev, O.. The George Washington University; Estados Unidos
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Fil: Pavlov, G. G.. Pennsylvania State University; Estados Unidos
dc.description.fil
Fil: Bietenholz, M.. University of York; Reino Unido
dc.description.fil
Fil: Talavera, Angel Daniel. European Space Astronomy Centre; Alemania
dc.journal.title
Astrophysical Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3847/1538-4357/aa6983


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