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Observational results for five short-period and five long-period comets

机译：五个短期和五个长期彗星的观察结果

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摘要

In this work we studied the activity of a group of long and short period comets at different heliocentric distances in order to explore and compare their dust production and characteristics. The targets observed were the comets 22P/Kopff, 29P/Schwassmann-Wachmann 1, 218P/LINEAR, 221P/LINEAR, 318P/McNaught-Hartley, C/2010 FB87 (WISE-Garradd), C/2010 G2 (Hill), C/2011 KP36, C/2011 L4 (PANSTARRS) and C/2013 US10 (Catalina). Several of these objects have never been studied before. We analyzed images in V and R filters taken with the 2.15 m telescope at Complejo Astronomico El Leoncito (CASLEO), Argentina, to characterize their dust coma features and to investigate the morphology, photometry and dust production. The morphological analysis shown many differences among the sample of objects observed, showing several structures from the large twisted regions to collimated jets that do not follow the anti-solar direction. The Afp values measured in a reference aperture of radius p = 10(4) km shown a scenario of bodies ranging from dust poor to very active ones. This is confirmed by the quantitative estimate of the dust mass-loss rate obtained from the photometric data.
机译：在这项工作中，我们研究了一组长短短期彗星的活动，以便在不同的香料距离，以便探索并比较他们的粉尘生产和特性。观察到的目标是彗星22p / kopff，29p / schwassmann-wachmann 1,218p / linear，221p / linear，318p / mcnaught-hartley，c / 2010 fb87（Wise-garradd），C / 2010 G2（Hill），C / 2011年KP36，C / 2011 L4（Panstarrs）和C / 2013 US10（Catalina）。这些物品中的一些从未研究过。我们在阿根廷Complejo Astronomico El Leoncito（Casleo）的2.15米望远镜的V和R过滤器中分析了V和R过滤器的图像，以表征他们的尘埃昏迷功能，并研究了形态，测光和粉尘生产。形态学分析在观察到的物体样本中显示了许多差异，从而显示出从大扭曲区域到不遵循防太阳方向的准直喷射的若干结构。在RADIUS P = 10（4）km的参考光圈中测量的AFP值显示了从贫困尘埃到非常活跃的体的场景。这通过从光度数据获得的粉尘质量损失率的定量估计来确认。

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  • 来源
    《Planetary and space science》 |2020年第1期|104779.1-104779.8|共8页
  • 作者

    Garcia R. S.; Gil-Hutton R.; Garcia-Migani E.;

  • 作者单位

    Univ Nacl San Juan CONICET Fac Ciencias Exactas Fis & Nat Grp Ciencias Planetarias Dept Geofis & Astron Av JI de La Roza 590 Oeste J5402DCS Rivadavia San Juan Argentina;

    Univ Nacl San Juan CONICET Fac Ciencias Exactas Fis & Nat Grp Ciencias Planetarias Dept Geofis & Astron Av JI de La Roza 590 Oeste J5402DCS Rivadavia San Juan Argentina;

    Univ Nacl San Juan CONICET Fac Ciencias Exactas Fis & Nat Grp Ciencias Planetarias Dept Geofis & Astron Av JI de La Roza 590 Oeste J5402DCS Rivadavia San Juan Argentina;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Comets; Dust; Photometry; Image processing;

    机译：彗星;灰尘;测光;图像处理;

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