• article-nadcAbout us
    Currently, NADC has 4 sub-centers: Lijiang Branch (Lijiang Municipal Government, Yunnan Observatory, ...
    (Guangzhou University, Sun Yat-sen University, Shenzhen Observatory), Technical R&D Innovation Sub-Center ...
    (Tianjin University), Education Research and Application Sub-Center (Central China Normal University ...
  • article-nadc被哈勃光芒掩盖的孤勇者们： 大型轨道天文台计划中的其它空间望远镜
    1990年4月24日，哈勃空间望远镜由发现号航天飞机搭载升空，开创了天文学研究的新时代。
    图2 康普顿伽马射线天文台（CGRO）艺术渲染图 康普顿伽马射线天文台于1991年4月5日由亚特兰蒂斯号航天飞机搭载升空，运行在高度为450km的近地轨道上，以此避免范艾伦辐射带的影响。
    康普顿伽马射线天文台重约17吨，其中天文仪器重约7吨，在当时是由航天飞机发射的最重的民用航天器。
    1999年7月23日，钱德拉X射线天文台由哥伦比亚号航天飞机搭载升空，其运行轨道为椭圆形，近地点1万公里，远地点14万公里，轨道周期为64小时，望远镜在轨期间由史密松天体物理台负责操控和运作。
    斯皮策空间望远镜在美国佛罗里达州的卡纳维尔角由德尔塔Ⅱ型火箭发射升空，运行在一条位于地球公转轨道后方、环绕太阳的轨道上，并以每年0.1天文单位的速度逐渐远离地球，这导致望远镜一旦出现故障将无法使用航天飞机对其进行维修 ...
  • metadataALMA对红移6类星体谱线观测处理数据
    这里是处理后的多频道数据文件。数据发表在 Shao et al. 2017, ApJ, 845, 138; Wang et al. 2019, ApJ, 887, 40 ...
  • article-nadcNADC研发基于时序数据模型的多时标光变曲线生成工具
    近期，国家天文科学数据中心张震、许允飞、崔辰州、樊东卫等人开展了光变曲线数据管理的研究，并开发了“自定义时标光变曲线生成工具”（LCGCT）。
    时域天文研究中，光变的采样率需求覆盖了从几十毫秒到几年的时标，因此，需要一种能够快速生成某一目标天体在一定时间尺度内自定义时间采样率的光变曲线的工具，以优化暂现信号的搜索、变源周期提取以及数据可视化。
  • article-nadc“恒星检索展示平台”上线了！
    中国虚拟天文台在“公众频道”已上线推出了“恒星检索展示平台”。该平台基于DSS数据可视化展示，可在线进行恒星数据检索。
    这是一扇足不出户、不分昼夜的观星窗口，任何人只要能够通过浏览器上网登录中国虚拟天文台网站公众频道(http://public.china-vo.org/)，就可以看到全天的恒星，甚至是星团、星云和星系。
  • metadataA New Magnetic Parameter of Active Regions Distinguishing Large Eruptive and Confined Solar Flares
    We calculate mean characteristic twist parameters α <SUB>FPIL</SUB> within the "flaring polarity inversion ...
    line" region and α <SUB>HFED</SUB> within the area of high photospheric magnetic free energy density ...
    We find that in about 90% of eruptive flares, α <SUB>FPIL</SUB>/Φ<SUB>AR</SUB> and α <SUB>HFED</SUB>/ ...
    Φ<SUB>AR</SUB> are beyond critical values (2.2 × 10<SUP>-24</SUP> and 3.2 × 10<SUP>-24</SUP> Mm<SUP>- ...
    This indicates that the new parameter α/Φ<SUB>AR</SUB> is well able to distinguish eruptive flares from ...
  • metadataA New Magnetic Parameter of Active Regions Distinguishing Large Eruptive and Confined Solar Flares
    We calculate mean characteristic twist parameters α <SUB>FPIL</SUB> within the "flaring polarity inversion ...
    line" region and α <SUB>HFED</SUB> within the area of high photospheric magnetic free energy density ...
    We find that in about 90% of eruptive flares, α <SUB>FPIL</SUB>/Φ<SUB>AR</SUB> and α <SUB>HFED</SUB>/ ...
    Φ<SUB>AR</SUB> are beyond critical values (2.2 × 10<SUP>-24</SUP> and 3.2 × 10<SUP>-24</SUP> Mm<SUP>- ...
    This indicates that the new parameter α/Φ<SUB>AR</SUB> is well able to distinguish eruptive flares from ...
  • metadataA New Magnetic Parameter of Active Regions Distinguishing Large Eruptive and Confined Solar Flares
    We calculate mean characteristic twist parameters α <SUB>FPIL</SUB> within the "flaring polarity inversion ...
    line" region and α <SUB>HFED</SUB> within the area of high photospheric magnetic free energy density ...
    We find that in about 90% of eruptive flares, α <SUB>FPIL</SUB>/Φ<SUB>AR</SUB> and α <SUB>HFED</SUB>/ ...
    Φ<SUB>AR</SUB> are beyond critical values (2.2 × 10<SUP>-24</SUP> and 3.2 × 10<SUP>-24</SUP> Mm<SUP>- ...
    This indicates that the new parameter α/Φ<SUB>AR</SUB> is well able to distinguish eruptive flares from ...
  • metadataA New Magnetic Parameter of Active Regions Distinguishing Large Eruptive and Confined Solar Flares
    We calculate mean characteristic twist parameters α <SUB>FPIL</SUB> within the "flaring polarity inversion ...
    line" region and α <SUB>HFED</SUB> within the area of high photospheric magnetic free energy density ...
    We find that in about 90% of eruptive flares, α <SUB>FPIL</SUB>/Φ<SUB>AR</SUB> and α <SUB>HFED</SUB>/ ...
    Φ<SUB>AR</SUB> are beyond critical values (2.2 × 10<SUP>-24</SUP> and 3.2 × 10<SUP>-24</SUP> Mm<SUP>- ...
    This indicates that the new parameter α/Φ<SUB>AR</SUB> is well able to distinguish eruptive flares from ...
  • article-nadc国家天文科学数据中心火流星项目公布2023年度最佳火流星榜单
    上传人：王智琛 发现时间：2023年12月14日19:58:57 流星特点：流星图像正，伴有飞机轨迹，画面感很强。 图10 王智琛作品 10.
  • metadataMagnetic Helicity Budget of Solar Active Regions Prolific of Eruptive and Confined Flares
    Our results support that the ratio of current-carrying to total helicity, | {H}<SUB>{{J</SUB>}}| /| { ...
    H}<SUB>{ \mathcal V </SUB>}| , shows a strong ability to indicate the eruptive potential of a solar AR ...
    However, | {H}<SUB>{{J</SUB>}}| /| {H}<SUB>{ \mathcal V </SUB>}| does not seem to be indicative for the ...
    the total relative helicity normalized to the magnetic flux at the NLFF model’s lower boundary, {H}<SUB ...
    >{ \mathcal V </SUB>}/{φ }<SUP>2</SUP>, represents no indicator for the eruptivity.
  • metadataMagnetic Helicity Budget of Solar Active Regions Prolific of Eruptive and Confined Flares
    Our results support that the ratio of current-carrying to total helicity, | {H}<SUB>{{J</SUB>}}| /| { ...
    H}<SUB>{ \mathcal V </SUB>}| , shows a strong ability to indicate the eruptive potential of a solar AR ...
    However, | {H}<SUB>{{J</SUB>}}| /| {H}<SUB>{ \mathcal V </SUB>}| does not seem to be indicative for the ...
    the total relative helicity normalized to the magnetic flux at the NLFF model’s lower boundary, {H}<SUB ...
    >{ \mathcal V </SUB>}/{φ }<SUP>2</SUP>, represents no indicator for the eruptivity.
  • article-nadcFAST第十三批科学数据开放
    FAST 27 PT2021_0047 Xun Shi Pulsar scintillation arclets monitoring: probing sub-AU ...
    Properties of Pulsar Single Pulses with FAST 47 PT2021_0092 Weiyang Wang Monitoring sub-pulse ...
  • article-nadc国家天文科学数据中心PaperData论文数据服务新版升级
    申请原因：申请DOI的原因（可从下拉列表选择，也可以自定义填写）。 论文接收证明：接收通知等文章被接收的证据，请上传不大于1M的pdf/jpg/png文件。
    PaperData服务为用户提供了安全、更规范的储存环境，界面友好、简便易用，有效提升了天文数据资源传播效率和引用规范，助力数据的开放共享。
  • article-nadc10岁小学生发现超新星，虚拟天文台开启科研新模式
    10月5日，他们在《天文学家电报（The Astronomer's Telegram）》上发表通信Atel #8120，确认这颗由廖家铭发现的超新星侯选体是一颗IIP型超新星。
    图一 廖家铭发现的超新星（拍摄处理：星明天文台）   图二 《天文学家电报》通信Atel #8120 确认廖家铭发现的超新星侯选体为IIP型超新星 公众超新星搜寻项目 由星明天文台和中国虚拟天文台合作开展的公众超新星搜寻项目 ...
    图三 廖家铭发现超新星页面截图 用户打开中国虚拟天文台的公众频道，进入超新星搜寻项目页面后，点击“开始搜寻”。如果当时有还未被用户查看对比过的新图，就可以看到屏幕上出现了两张黑白图片。
  • article-nadc国家天文科学数据中心助力爱因斯坦探针（EP）卫星第一批图像发布
    月发射入轨以来，两台有效载荷宽视场X射线望远镜（WXT）和后随X射线望远镜（FXT）在轨测试和仪器定标期间获取了多组宇宙天体的X射线科学观测数据，已探测到新的暂现源17例、恒星耀发168例，并发布全球电报 ...
    未来，中心将持续支持EP科学数据的分析与应用，助力科学研究，为EP科学创新产出奠定基础。
    射线望远镜（WXT）首次报告的暂现源（X射线数据版权EP科学中心） 图2展示的伽马射线暴候选体（EP240219a）是宽视场X射线望远镜（WXT）最早发现的若干暂现源之一，是EP卫星团队第一个在天文学家电报上报道的暂现源 ...
  • metadataStellar Parameterization of LAMOST M Dwarf Stars
    In this paper, we present a catalog of the spectroscopic stellar parameters (T<SUB>eff</SUB> and [M/H ...
    We train a SLAM model using LAMOST spectra with APOGEE Data Release 16 labels with 2800 K < T<SUB> ...
    eff</SUB> < 4500K and -2 dex < [M/H] < 0.5 dex.
    The SLAM T<SUB>eff</SUB> is in agreement to within ∼50 K compared to the previous study determined by ...
  • metadataStellar Parameterization of LAMOST M Dwarf Stars
    In this paper, we present a catalog of the spectroscopic stellar parameters (T<SUB>eff</SUB> and [M/H ...
    We train a SLAM model using LAMOST spectra with APOGEE Data Release 16 labels with 2800 K < T<SUB> ...
    eff</SUB> < 4500K and -2 dex < [M/H] < 0.5 dex.
    The SLAM T<SUB>eff</SUB> is in agreement to within ∼50 K compared to the previous study determined by ...
  • metadataStellar Parameterization of LAMOST M Dwarf Stars
    In this paper, we present a catalog of the spectroscopic stellar parameters (T<SUB>eff</SUB> and [M/H ...
    We train a SLAM model using LAMOST spectra with APOGEE Data Release 16 labels with 2800 K < T<SUB> ...
    eff</SUB> < 4500K and -2 dex < [M/H] < 0.5 dex.
    The SLAM T<SUB>eff</SUB> is in agreement to within ∼50 K compared to the previous study determined by ...
  • metadataStellar Parameterization of LAMOST M Dwarf Stars
    In this paper, we present a catalog of the spectroscopic stellar parameters (T<SUB>eff</SUB> and [M/H ...
    We train a SLAM model using LAMOST spectra with APOGEE Data Release 16 labels with 2800 K < T<SUB> ...
    eff</SUB> < 4500K and -2 dex < [M/H] < 0.5 dex.
    The SLAM T<SUB>eff</SUB> is in agreement to within ∼50 K compared to the previous study determined by ...
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