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Author
dc.contributor.author
Sárneczky, K 
Author
dc.contributor.author
Szabó, GyM 
Author
dc.contributor.author
Csák, B 
Author
dc.contributor.author
Kelemen, J 
Author
dc.contributor.author
Marschalkó, G 
Author
dc.contributor.author
Pál, A 
Author
dc.contributor.author
Szakáts, R 
Author
dc.contributor.author
Szalai, T 
Author
dc.contributor.author
Szegedi-Elek, E 
Author
dc.contributor.author
Székely, P 
Availability Date
dc.date.accessioned
2020-08-10T09:24:33Z
Availability Date
dc.date.available
2020-08-10T09:24:33Z
Release
dc.date.issued
2016
uri
dc.identifier.uri
http://hdl.handle.net/10831/48936
Abstract
dc.description.abstract
Remote investigations of the ancient solar system matter has been traditionally carried out through the observations of long-period (LP) comets that are less affected by solar irradiation than the short-period counterparts orbiting much closer to the Sun. Here we summarize the results of our decade-long survey of the distant activity of LP comets. We found that the most important separation in the dataset is based on the dynamical nature of the objects. Dynamically new comets are characterized by a higher level of activity on average: the most active new comets in our sample can be characterized by afrho values >3--4 higher than that of our most active returning comets. New comets develop more symmetric comae, suggesting a generally isotropic outflow. Contrary to this, the coma of recurrent comets can be less symmetrical, ocassionally exhibiting negative slope parameters, suggesting sudden variations in matter production. The morphological appearance of the observed comets is rather diverse. A surprisingly large fraction of the comets have long, teniouos tails, but the presence of impressive tails does not show a clear correlation with the brightness of the comets.
Language
dc.language
Angol
Title
dc.title
Activity of 50 Long-Period Comets Beyond 5.2 AU
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2020-06-03T14:05:03Z
Doi ID
dc.identifier.doi
10.3847/0004-6256/152/6/220
Wos ID
dc.identifier.wos
000390342200003
ID Scopus
dc.identifier.scopus
85009061091
MTMT ID
dc.identifier.mtmt
3146839
Issue Number
dc.identifier.issue
6
abbreviated journal
dc.identifier.jabbrev
ASTRON J
Journal
dc.identifier.jtitle
ASTRONOMICAL JOURNAL
Volume Number
dc.identifier.volume
152
Release Date
dc.description.issuedate
2016
department of Author
dc.contributor.institution
Optikai és Kvantumelektronikai Tanszék
department of Author
dc.contributor.institution
Konkoly Thege Miklós Csillagászati Intézet
department of Author
dc.contributor.institution
Csillagászati Tanszék
department of Author
dc.contributor.institution
Kísérleti Fizikai Tanszék
department of Author
dc.contributor.institution
Fizika Doktori Iskola
department of Author
dc.contributor.institution
Optikai és Kvantumelektronikai Tanszék
department of Author
dc.contributor.institution
Kísérleti Fizikai Tanszék
department of Author
dc.contributor.institution
Szegedi Tudományegyetem Bajai Obszervatóriuma
department of Author
dc.contributor.institution
MTA-ELTE Exobolygó Kutatócsoport
department of Author
dc.contributor.institution
Gothard Asztrofizikai Obszervatórium és Multidiszciplináris Kutatóközpont
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Gothard Asztrofizikai Obszervatórium és Multidiszciplináris Kutatóközpont
Author institution
dc.contributor.department
Gothard Asztrofizikai Obszervatórium és Multidiszciplináris Kutatóközpont
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Lendület Légyszem Kutatócsoport
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet
Author institution
dc.contributor.department
Konkoly Thege Miklós Csillagászati Intézet


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Activity of 50 Long-Period Comets Beyond 5.2 AU
 

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