The detection of radio emission from known X-ray flaring star EXO 040830−7134.7
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This is the radio light curve of known X-ray flaring star EXO 040830−7134.7 observed by MeerKAT as part of ThunderKAT. These data are part of a publication in the Monthly Notice of the Royal Astronomical Society (Driessen et al., Accepted 2021 November 25. Received 2021 November 25; in original form 2021 August 25). The light curve is from the full-time-integration, full-frequency-integration images of VW Hyi, as processed by the LOFAR Transients Pipeline (TraP). The columns in the file are: mjd: the modified Julian Date (MJD) of the observation. The MJD is given by MJD=JD-2400000.5 where JD is the Julian Date f_int_Jy: the integrated flux density of the source in Jansky (Jy) determined by the LOFAR TraP f_int_err_Jy: the uncertainty on f_int_Jy in Jansky determined by the LOFAR TraP freq_eff_Hz: the effect frequency in Hertz (Hz) as determined by the LOFAR TraP taustart_ts: the ISO 8601 time of the observation in Coordinated Universal Time (UTC) The files were made using the Pandas package, so we recommend Python users load them using <pre><code>import pandas as pd pd.read_csv(filename, comment='#')</code></pre> If you use the data shared here please ensure that you cite the MNRAS paper (Driessen at al. 2021) and the Zenodo DOI: 10.5281/zenodo.5084298. The MeerKAT telescope is operated by the South African Radio Astronomy Observatory, which is a facility of the National Research Foundation, an agency of the Department of Science and Innovation.<br> LND acknowledges support from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 694745).
本数据集为MeerKAT望远镜作为ThunderKAT项目的组成部分,对已知X射线耀发星EXO 040830−7134.7开展观测所获得的射电光变曲线。该数据隶属于Driessen等人发表于《皇家天文学会月报》(Monthly Notice of the Royal Astronomical Society,简称MNRAS)的一篇研究论文,该论文于2021年11月25日正式接收,期刊于同日收到投稿稿件,原始投稿版本完成于2021年8月25日。本次公开的光变曲线源自VW Hyi的全时间积分、全频率积分成像结果,经LOFAR瞬变源管道(LOFAR Transients Pipeline,TraP)处理得到。 数据文件各列的含义如下: 1. `mjd`:观测的修正儒略日期(modified Julian Date,MJD),其与儒略日期(Julian Date,JD)的换算关系为`MJD=JD−2400000.5`; 2. `f_int_Jy`:由LOFAR TraP测定的源积分流量密度,单位为央斯基(Jansky,Jy); 3. `f_int_err_Jy`:LOFAR TraP测定的`f_int_Jy`的测量不确定度,单位为央斯基; 4. `freq_eff_Hz`:LOFAR TraP测定的有效观测频率,单位为赫兹(Hertz,Hz); 5. `taustart_ts`:协调世界时(Coordinated Universal Time,UTC)下的ISO 8601格式观测时刻。 本数据集文件采用Pandas包生成,因此推荐Python用户通过以下代码加载数据: python import pandas as pd pd.read_csv(filename, comment='#') 若使用本数据集,请务必引用该MNRAS论文(Driessen等,2021)以及Zenodo平台的DOI:10.5281/zenodo.5084298。 MeerKAT望远镜由南非射电天文台(South African Radio Astronomy Observatory)运营,该机构隶属于南非科学与创新部下属的国家研究基金会(National Research Foundation)。 LND感谢欧洲研究理事会(European Research Council,ERC)在欧盟“地平线2020”研究与创新框架计划下提供的资助(资助协议编号:694745)。



