更新射电Σ - D关系银河超新星遗迹- II

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

Serbian Astronomical Journal Pub Date : 2014-11-09 DOI:10.2298/SAJ1489025P

M. Pavlović, A. Dobardžić, B. Vukoti'c, D. Urošević

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引用次数: 31

摘要

在本文中，我们提出了更新的经验射电表面-亮度-直径(?- d)关系的银河系超新星遗迹(SNRs)校准使用110信噪比与可靠的距离。我们将正交拟合和核密度平滑应用于?？ D平面，并将结果与最新的理论?-从信噪比的无线电演化模拟中导出的D关系。我们认为，经验和模拟之间的最佳一致?？从标定样本中滤除混合形态的信噪比和低亮度、小直径的信噪比，得到D关系。从我们的完整和过滤的校准样本中估计了到5个新发现的残余和27个新候选壳信噪比的距离。

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Updated radio Σ - D relation for galactic supernova remnants - II

In this paper we present the updated empirical radio surface- brightness-to-diameter (?-D) relation for Galactic supernova remnants (SNRs) calibrated using 110 SNRs with reliable distances. We apply orthogonal fitting procedure and kernel density smoothing in the ? ? D plane and compare the results with the latest theoretical ? - D relations derived from simulations of radio evolution of SNRs. We argue that the best agreement between the empirical and simulated ? ? D relations is achieved if the mixed-morphology SNRs and SNRs of both, low brightness and small diameter, are filtered out from the calibration sample. The distances to 5 newly discovered remnants and 27 new candidates for shell SNRs are estimated from our full and filtered calibration samples.

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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related fields (written upon invitation only), Original Scientific Papers - article in which are presented previously unpublished author''s own scientific results, Preliminary Reports - original scientific paper, but shorter in length and of preliminary nature, Professional Papers -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.