On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves
Suprathermal populations with energetic distributions deviating from a standard Maxwellian are ubiquitous in dusty plasmas from space environments, as a proof that these systems are out of thermal equilibrium. The excess of free energy may have important implications in the relaxation processes by t...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , |
| منشور في: |
2018
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| الوصول للمادة أونلاين: | http://hdl.handle.net/20.500.12458/342 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034819433&doi=10.1016%2fj.pss.2017.11.011&partnerID=40&md5=f494e83d9e62b6ad310966a1cbcacafd |
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| _version_ | 1857415063158128640 |
|---|---|
| author | Lazar, M. |
| author2 | Fichtner, H. Poedts, S. Ioannis Kourakis |
| author2_role | author author author |
| author_facet | Lazar, M. Fichtner, H. Poedts, S. Ioannis Kourakis |
| author_role | author |
| dc.creator.none.fl_str_mv | Lazar, M. Fichtner, H. Poedts, S. Ioannis Kourakis |
| dc.date.none.fl_str_mv | 2018 2019-02-28T08:21:11Z 2019-02-28T08:21:11Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | 0032-0633 http://hdl.handle.net/20.500.12458/342 10.1016/j.pss.2017.11.011 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034819433&doi=10.1016%2fj.pss.2017.11.011&partnerID=40&md5=f494e83d9e62b6ad310966a1cbcacafd |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier Ltd |
| dc.relation.none.fl_str_mv | Planetary and Space Science 156 130 138 |
| dc.title.none.fl_str_mv | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| dc.type.none.fl_str_mv | Controlled Vocabulary for Resource Type Genres::text::periodical::journal::contribution to journal::journal article |
| description | Suprathermal populations with energetic distributions deviating from a standard Maxwellian are ubiquitous in dusty plasmas from space environments, as a proof that these systems are out of thermal equilibrium. The excess of free energy may have important implications in the relaxation processes by the plasma waves and fluctuations, as well as in their dissipation. In order to emphasize the effects of suprathermal populations a new realistic interpretation is proposed on the basis of an advanced Kappa modeling in accord with the observations. This article is focused on the kinetic description of dust-modified ion acoustic (DIA) waves in the presence of Kappa-distributed (suprathermal) particles. Our methodology follows closely recent considerations on the structural characteristics of Kappa distributions, contrasting the high-energy tails enhanced by the suprathermal populations with the Maxwellian (thermal) core of the distribution. The effects on DIA waves are found to be highly dependent on the nature of suprathermal particles: both the wave-frequency and Landau damping rate are inhibited by the suprathermal electrons, while the suprathermal ions have an opposite influence. © 2017 Elsevier Ltd |
| id | sorbonner_0b9c572308499029fd0b414d71ed7a91 |
| identifier_str_mv | 0032-0633 10.1016/j.pss.2017.11.011 |
| language_invalid_str_mv | en |
| network_acronym_str | sorbonner |
| network_name_str | Sorbonne University Abu Dhabi repository |
| oai_identifier_str | oai:depot.sorbonne.ae:20.500.12458/342 |
| publishDate | 2018 |
| publisher.none.fl_str_mv | Elsevier Ltd |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic wavesLazar, M.Fichtner, H.Poedts, S.Ioannis KourakisSuprathermal populations with energetic distributions deviating from a standard Maxwellian are ubiquitous in dusty plasmas from space environments, as a proof that these systems are out of thermal equilibrium. The excess of free energy may have important implications in the relaxation processes by the plasma waves and fluctuations, as well as in their dissipation. In order to emphasize the effects of suprathermal populations a new realistic interpretation is proposed on the basis of an advanced Kappa modeling in accord with the observations. This article is focused on the kinetic description of dust-modified ion acoustic (DIA) waves in the presence of Kappa-distributed (suprathermal) particles. Our methodology follows closely recent considerations on the structural characteristics of Kappa distributions, contrasting the high-energy tails enhanced by the suprathermal populations with the Maxwellian (thermal) core of the distribution. The effects on DIA waves are found to be highly dependent on the nature of suprathermal particles: both the wave-frequency and Landau damping rate are inhibited by the suprathermal electrons, while the suprathermal ions have an opposite influence. © 2017 Elsevier LtdElsevier Ltd2019-02-28T08:21:11Z2019-02-28T08:21:11Z2018Controlled Vocabulary for Resource Type Genres::text::periodical::journal::contribution to journal::journal articleapplication/pdf0032-0633http://hdl.handle.net/20.500.12458/34210.1016/j.pss.2017.11.011https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034819433&doi=10.1016%2fj.pss.2017.11.011&partnerID=40&md5=f494e83d9e62b6ad310966a1cbcacafdenPlanetary and Space Science156130138oai:depot.sorbonne.ae:20.500.12458/3422023-12-05T06:08:37Z |
| spellingShingle | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves Lazar, M. |
| title | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| title_full | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| title_fullStr | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| title_full_unstemmed | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| title_short | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| title_sort | On the effects of suprathermal populations in dusty plasmas: The case of dust-ion-acoustic waves |
| url | http://hdl.handle.net/20.500.12458/342 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034819433&doi=10.1016%2fj.pss.2017.11.011&partnerID=40&md5=f494e83d9e62b6ad310966a1cbcacafd |