The ULF wave foreshock boundary: Cluster observations

Mostrar todas las versiones(4)

The interaction of backstreaming ions with the incoming solar wind in the upstream region of the bow shock gives rise to a number of plasma instabilities from which ultralow frequency (ULF) waves can grow. Because of their finite growth rate, the ULF waves are spatially localized in the foreshock re...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Andrés, N., Meziane, K., Mazelle, C., Bertucci, C., Gómez, D.
Formato:	INPR
Materias:	Cluster spacecraft Earth's foreshock Interplanetary magnetic field Particle acceleration Solar wind ULF waves
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_21699380_v_n_p_Andres
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_21699380_v_n_p_Andres
record_format	dspace
spelling	todo:paper_21699380_v_n_p_Andres2023-10-03T16:40:02Z The ULF wave foreshock boundary: Cluster observations Andrés, N. Meziane, K. Mazelle, C. Bertucci, C. Gómez, D. Cluster spacecraft Earth's foreshock Interplanetary magnetic field Particle acceleration Solar wind ULF waves The interaction of backstreaming ions with the incoming solar wind in the upstream region of the bow shock gives rise to a number of plasma instabilities from which ultralow frequency (ULF) waves can grow. Because of their finite growth rate, the ULF waves are spatially localized in the foreshock region. Previous studies have reported observational evidence of the existence of a ULF wave foreshock boundary, whose geometrical characteristics are very sensitive to the interplanetary magnetic field (IMF) cone angle. The statistical properties of the ULF wave foreshock boundary (UWFB) are examined in detail using Cluster data. A new identification of the UWFB is presented using a specific and accurate criterion for identification of boundary crossings. This criterion is based on the degree of IMF rotation as Cluster crosses the boundary. The obtained UWFB is compared with previous results reported in the literature as well as with theoretical predictions. Also, we examined the possible connection between the foreshock boundary properties and the ion emission mechanisms at the bow shock. © 2015 American Geophysical Union. Fil:Andrés, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bertucci, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. INPR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_21699380_v_n_p_Andres
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cluster spacecraft Earth's foreshock Interplanetary magnetic field Particle acceleration Solar wind ULF waves
spellingShingle	Cluster spacecraft Earth's foreshock Interplanetary magnetic field Particle acceleration Solar wind ULF waves Andrés, N. Meziane, K. Mazelle, C. Bertucci, C. Gómez, D. The ULF wave foreshock boundary: Cluster observations
topic_facet	Cluster spacecraft Earth's foreshock Interplanetary magnetic field Particle acceleration Solar wind ULF waves
description	The interaction of backstreaming ions with the incoming solar wind in the upstream region of the bow shock gives rise to a number of plasma instabilities from which ultralow frequency (ULF) waves can grow. Because of their finite growth rate, the ULF waves are spatially localized in the foreshock region. Previous studies have reported observational evidence of the existence of a ULF wave foreshock boundary, whose geometrical characteristics are very sensitive to the interplanetary magnetic field (IMF) cone angle. The statistical properties of the ULF wave foreshock boundary (UWFB) are examined in detail using Cluster data. A new identification of the UWFB is presented using a specific and accurate criterion for identification of boundary crossings. This criterion is based on the degree of IMF rotation as Cluster crosses the boundary. The obtained UWFB is compared with previous results reported in the literature as well as with theoretical predictions. Also, we examined the possible connection between the foreshock boundary properties and the ion emission mechanisms at the bow shock. © 2015 American Geophysical Union.
format	INPR
author	Andrés, N. Meziane, K. Mazelle, C. Bertucci, C. Gómez, D.
author_facet	Andrés, N. Meziane, K. Mazelle, C. Bertucci, C. Gómez, D.
author_sort	Andrés, N.
title	The ULF wave foreshock boundary: Cluster observations
title_short	The ULF wave foreshock boundary: Cluster observations
title_full	The ULF wave foreshock boundary: Cluster observations
title_fullStr	The ULF wave foreshock boundary: Cluster observations
title_full_unstemmed	The ULF wave foreshock boundary: Cluster observations
title_sort	ulf wave foreshock boundary: cluster observations
url	http://hdl.handle.net/20.500.12110/paper_21699380_v_n_p_Andres
work_keys_str_mv	AT andresn theulfwaveforeshockboundaryclusterobservations AT mezianek theulfwaveforeshockboundaryclusterobservations AT mazellec theulfwaveforeshockboundaryclusterobservations AT bertuccic theulfwaveforeshockboundaryclusterobservations AT gomezd theulfwaveforeshockboundaryclusterobservations AT andresn ulfwaveforeshockboundaryclusterobservations AT mezianek ulfwaveforeshockboundaryclusterobservations AT mazellec ulfwaveforeshockboundaryclusterobservations AT bertuccic ulfwaveforeshockboundaryclusterobservations AT gomezd ulfwaveforeshockboundaryclusterobservations
_version_	1807321566353031168

The ULF wave foreshock boundary: Cluster observations

Ejemplares similares