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典型文献
Extragalactic H I Survey with FAST:First Look at the Pilot Survey Results
文献摘要:
We present the first data release of H I sources extracted from a pilot extragalactic survey using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). We extracted sources from three-dimensional (3D) spectral data cubes datacubes to perform interactive searching and computing, yielding global parameters for each source, extending redshift ranges of H I emission up to z=0.04. A total of 544 extragalactic H I sources has been detected by the pilot FAST H I drift scan survey covering part of the sky region in R.A. (R.A. orα) and decl. (decl. orδ) range 00h47m 6.5; (2) 61 sources with 5.1?S/N?6.5;(3) 28 sources with relatively poor baselines; (4) 33 sources that are partly masked by strong radio frequency interferences (RFIs). In addition, we find 16 H I sources that have not been matched with any counterparts in the existing galaxy catalogs. This data release can provide guidance for the future extragalactic H I survey with FAST.
文献关键词:
作者姓名:
Jiangang Kang;Ming Zhu;Mei Ai;Haiyang Yu;Chun Sun
作者机构:
National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;CAS Key Laboratory of FAST,National FAST,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China;Beijing Normal University,Beijing 100875,China
引用格式:
[1]Jiangang Kang;Ming Zhu;Mei Ai;Haiyang Yu;Chun Sun-.Extragalactic H I Survey with FAST:First Look at the Pilot Survey Results)[J].天文和天体物理学研究,2022(06):215-233
A类:
Extragalactic,datacubes,decl,00h47m,J2000,23h22m,and+24,+43,Vizier,flagged,RFIs
B类:
Survey,FAST,First,Look,Pilot,Results,We,present,first,release,sources,extracted,from,pilot,extragalactic,survey,using,Five,hundred,Aperture,Spherical,radio,Telescope,three,dimensional,spectral,perform,interactive,searching,computing,yielding,global,parameters,each,extending,redshift,ranges,emission,up,total,has,been,detected,by,drift,scan,covering,sky,region,Of,which,are,matched,optical,counterparts,via,examination,digital,databases,collected,NED,center,them,have,velocities,Furthermore,we,galaxies,mass,significant,study,low,systems,local,universe,catalogs,all,detections,signal,noise,ratio,greater,than,classified,into,four,categories,their,qualities,code,relatively,poor,baselines,that,partly,masked,strong,frequency,interferences,In,addition,find,not,any,existing,galaxy,This,provide,guidance,future
AB值:
0.514404
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