盖亚科学警报和塞尔维亚-保加利亚迷你网络望远镜的观测设施

IF 0.8 4区 物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS
G. Damljanovic, O. Vince, S. Boeva
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引用次数: 1

摘要

2013年12月19日,欧洲航天局(ESA)的天体测量任务“盖亚”发射升空。盖亚任务的任务之一是制作一份包含超过10亿颗恒星和50多万个星系外源的天体测量目录。类星体(qso)是活跃的星系核天体(agn),作为星系外源和射电发射器,其坐标可以通过甚长基线干涉测量(VLBI)技术很好地确定,精度可以达到亚毫弧秒。qso是准惯性国际天体参考系(ICRF)的定义源,因为它们的核心射电形态、可忽略的固有运动(直到每年亚毫角秒)和明显的点状性质。紧凑的agn,在光学领域可见,对于未来盖亚光学参考系与最精确的无线电参考系的直接连接是有用的。除了上面提到的活动,盖亚还有其他的目标,比如跟踪瞬变物体。盖亚对光度警报最重要的要求之一是快速观测和减少响应,即在24小时内提交观测结果。出于这个原因,我们开发了一个管道。根据我们在贝尔格莱德天文台维多耶维察天文台(ASV)的新望远镜(D(cm)/F(cm)=60/600)的可能性,我们加入了gaya -瞬变天体后续网络(gaya - funto)进行光度警报。此外,鉴于同保加利亚同事(首先是保加利亚)的合作,我们中的一个人(保加利亚)发起了一个对盖亚-乐趣-和其他天文目的有用的塞尔维亚-保加利亚望远镜的当地小型网络。在接下来的一年里,我们期望在ASV站点上安装一个新的1.4米望远镜。数据处理(从观测到校准服务器)的速度可能在一天之内。在这里,我们概述了我们在Gaia-FUN-TO的活动,包括建立塞尔维亚-保加利亚迷你网络(在三个地点的五个望远镜,塞尔维亚的ASV,保加利亚的Belogradchik和Rozhen), Gaia-FUN-TO测试观测和一些结果。[南斯拉夫]塞族共和国部长项目;176011:天体与系统动力学与运动学[j]。176004:恒星物理学。176021:邻近星系中可见和不可见物质:理论与观测]
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gaia science alerts and the observing facilities of the Serbian-Bulgarian mini-network telescopes
The astrometric European Space Agency (ESA) Gaia mission was launched in December 19, 2013. One of the tasks of the Gaia mission is production of an astrometric catalog of over one billion stars and more than 500000 extragalactic sources. The quasars (QSOs), as extragalactic sources and radio emitters, are active galactic nuclei objects (AGNs) whose coordinates are well determined via Very Long Baseline Interferometry (VLBI) technique and may reach sub-milliarcsecond accuracy. The QSOs are the defining sources of the quasi-inertial International Celestial Reference Frame (ICRF) because of their core radio morphology, negligible proper motions (until sub-milliarcsecond per year), and apparent point-like nature. Compact AGNs, visible in optical domain, are useful for a direct link of the future Gaia optical reference frame with the most accurate radio one. Apart from the above mentioned activities, Gaia has other goals such as follow-up of transient objects. One of the most important Gaia's requirements for photometric alerts is a fast observation and reduction response, that is, submition of observations within 24 hours. For this reason we have developed a pipeline. In line with possibilities of our new telescope (D(cm)/F(cm)=60/600) at the Astronomical Station Vidojevica (ASV, of the Astronomical Observatory in Belgrade), we joined the Gaia-Follow-Up Network for Transients Objects (Gaia-FUN-TO) for the photometric alerts. Moreover, in view of the cooperation with Bulgarian colleagues (in the frst place, SV), one of us (GD) initiated a local mini-network of Serbian { Bulgarian telescopes useful for the Gaia-FUN-TO and other astronomical purposes. During the next year we expect a new 1.4 m telescope at ASV site. The speed of data processing (from observation to calibration server) could be one day. Here, we present an overview of our activities in the Gaia-FUN-TO which includes establishing Serbian { Bulgarian mini-network (of five telescopes at three sites, ASV in Serbia, Belogradchik and Rozhen in Bulgaria), the Gaia-FUN-TO test observations, and some results. [Projekat Ministarstva nauke Republike Srbije, br. 176011: Dynamics and kinematics of celestial bodies and systems, br. 176004: Stellar physics, i br. 176021: Visible and invisible matter in nearby galaxies: theory and observations]
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来源期刊
Serbian Astronomical Journal
Serbian Astronomical Journal ASTRONOMY & ASTROPHYSICS-
CiteScore
1.00
自引率
0.00%
发文量
6
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.
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