巨型射电源qso j0443.8-6141的射电连续观测

IF 0.8 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Serbian Astronomical Journal Pub Date : 2013-10-25 DOI:10.2298/SAJ1387001F

M. Filipović, K. Čajko, J. Collier, N. Tothill

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引用次数: 1

摘要

我们报告在z=0.72处发现了与QSO J0443.8-6141相关的一个巨大的双叶(叶-核-叶)无线电连续体结构。这个QSO最初是在对ROSAT全天巡天(All Sky Survey)无线电和光学频率源样本的跟踪中确定的。线性尺寸约0.77 Mpc, QSO J0443.8-6141被归类为巨型射电源(GRS);基于其物理性质，我们将QSO J0443.8-6141归类为FR II射电星系。需要高分辨率观测来可靠地识别GRSs;下一代的南方天空射电和光学巡天将是增加这些天体样本的关键。

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RADIO-CONTINUUM OBSERVATIONS OF A GIANT RADIO SOURCE QSO J0443.8-6141

We report the discovery of a giant double-lobed (lobe-core-lobe) radio-continuum structure associated with QSO J0443.8-6141 at z=0.72. This QSO was originally identified during the follow-up of a sample of ROSAT All Sky Survey sources at radio and optical frequencies. With a linear size of ~0.77 Mpc, QSO J0443.8-6141 is classified as a giant radio source (GRS); based on its physical properties, we classify QSO J0443.8-6141 as a FR II radio galaxy. High-resolution observations are required to reliably identify GRSs; the next generation of southern sky radio and optical surveys will be crucial to increasing our sample of these objects.

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来源期刊

Serbian Astronomical Journal ASTRONOMY & ASTROPHYSICS-

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Serbian Astronomical Journal publishes original observations and researches in all branches of astronomy. The journal publishes: Invited Reviews - review article on some up-to-date topic in astronomy, astrophysics and related fields (written upon invitation only), Original Scientific Papers - article in which are presented previously unpublished author''s own scientific results, Preliminary Reports - original scientific paper, but shorter in length and of preliminary nature, Professional Papers - articles offering experience useful for the improvement of professional practice i.e. article describing methods and techniques, software, presenting observational data, etc. In some cases the journal may publish other contributions, such as In Memoriam notes, Obituaries, Book Reviews, as well as Editorials, Addenda, Errata, Corrigenda, Retraction notes, etc.