eprintid: 10180530
rev_number: 10
eprint_status: archive
userid: 699
dir: disk0/10/18/05/30
datestamp: 2023-11-07 13:43:29
lastmod: 2024-10-03 11:56:28
status_changed: 2023-11-07 13:43:29
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Ghag, K
creators_name: Pathare, P
creators_name: Raghav, A
creators_name: Nicolaou, G
creators_name: Shaikh, Z
creators_name: Dhamane, O
creators_name: Panchal, U
creators_name: Kumbhar, K
creators_name: Tari, P
creators_name: Sathe, B
creators_name: Pawaskar, V
creators_name: Hilbert, G
title: Studying the polytropic behavior of an ICME using Multi-spacecraft observation by STEREO-A, STEREO-B, and WIND
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F63
keywords: Coronal mass ejection; Polytropic process; Multi-spacecraft observations
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: The polytropic behavior describes the relationship between macroscopic properties of plasma species and provides useful information in understanding physical mechanisms in space plasma. Through the value of the polytropic index, which governs the polytropic relationship, we can identify the energy transfer in plasma systems. In this paper, we determine the polytropic index of proton plasma within an Interplanetary Coronal Mass Ejection (ICME), which has been observed by three different spacecraft at ∼1 AU, each separated by ∼20∘ degrees in longitude during the analyzed observations. By performing this multi-spacecraft analysis, we provide evidence that the polytropic index does not vary significantly across the structure of the observed ICME. This may imply that the ICME evolution process is nearly coherent. Moreover, the polytropic index values we derive here can set boundary conditions in existing and future ICME evolution models.
date: 2024-01-01
date_type: published
publisher: Elsevier BV
official_url: https://doi.org/10.1016/j.asr.2023.09.010
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2093335
doi: 10.1016/j.asr.2023.09.010
lyricists_name: Nicolaou, Georgios
lyricists_id: GNICO14
actors_name: Nicolaou, Georgios
actors_id: GNICO14
actors_role: owner
full_text_status: public
publication: Advances in Space Research
volume: 73
number: 1
pagerange: 1064-1072
issn: 0273-1177
citation:        Ghag, K;    Pathare, P;    Raghav, A;    Nicolaou, G;    Shaikh, Z;    Dhamane, O;    Panchal, U;                     ... Hilbert, G; + view all <#>        Ghag, K;  Pathare, P;  Raghav, A;  Nicolaou, G;  Shaikh, Z;  Dhamane, O;  Panchal, U;  Kumbhar, K;  Tari, P;  Sathe, B;  Pawaskar, V;  Hilbert, G;   - view fewer <#>    (2024)    Studying the polytropic behavior of an ICME using Multi-spacecraft observation by STEREO-A, STEREO-B, and WIND.                   Advances in Space Research , 73  (1)   pp. 1064-1072.    10.1016/j.asr.2023.09.010 <https://doi.org/10.1016/j.asr.2023.09.010>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10180530/1/Polytropic%20study%20of%20ICME%20%28Simple_template%29.pdf