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Artículo

The activity of comet C/2014 E2 (Jacques) from pre and post-perihelion images

García Migani, Esteban AndrésIcon ; Gil Hutton, Ricardo AlfredoIcon ; García, R.
Fecha de publicación: 09/2022
Editorial: Elsevier
Revista: Planetary and Space Science
ISSN: 0032-0633
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

We present ground-based optical and infrared imaging observations of long period comet C/2014 E2 (Jacques) before and after its perihelion passage. The aim of this work is to characterize the activity of the comet C/2014 E2 (Jacques) in its pre- and post-perihelion stages. Both from the morphological and photometric point of view, as well as its gas production (CO or CO2). We observed the comet with the 2.15 m telescope at CASLEO whit R broadband. For the analysis of the inner coma of the comet we used a series of enhancement filters in order to find dust structures. To estimate the dust production of the comet we made photometric measurements to calculate the Afρ parameter. To estimate the gas production we used NEOWISE infrared images of the comet. It was possible to identify two jet-like structures coming out from the nuclear region of the comet, one in the sun-ward direction (which is most likely the dust tail) and the other which probably is due to ejected dust from an active region in the nucleus. These two features were observed in pre- and post-perihelion observations. The A(0)fρ values calculated for comet Jacques (in cm) were: 909 47, 1014 21, 706 23 for pre-perihelion at 1:27au and 450 21, 444 20,41118forpost-perihelion at 1:64au. The values derived for QCO (in molecules s1) were: < 5:24 1027;<5:921028;<1:411028.While for QCO2 (in molecules s1) were: < 4:621026;<5:211027;<1:24 1027. These values are upper limits since we can't discern between CO and CO2 emission.
Palabras clave: COMETS: INDIVIDUAL: C/2014 E2 (JACQUES) , METHODS: OBSERVATIONAL
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/160255
URL: https://www.sciencedirect.com/science/article/abs/pii/S0032063322000927
DOI: https://doi.org/10.1016/j.pss.2022.105506
Colecciones
Articulos(CCT - SAN JUAN)
Articulos de CENTRO CIENTIFICO TECNOLOGICO CONICET - SAN JUAN
Citación
García Migani, Esteban Andrés; Gil Hutton, Ricardo Alfredo; García, R.; The activity of comet C/2014 E2 (Jacques) from pre and post-perihelion images; Elsevier; Planetary and Space Science; 218; 9-2022; 1-8
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