• article-nadcAbout us
    NADC now has 4 sub-centers: Lijiang Sub-Center (Lijiang Municipal Government, Yunnan Observatory, Yunnan ...
    University), Guangdong-Hong Kong-Macao Greater Bay Area Sub-center (Guangzhou University, Sun Yat-sen ...
    Hebei Normal University, West China Normal University, Liaoning Normal University), Zhijiang Laboratory Sub-center ...
  • 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-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 ...
  • 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-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-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.
  • 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 ...
  • 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 ...
  • metadataUnveiling the Hierarchical Structure of Open Star Clusters: The Perseus Double Cluster
    This approach identifies a single structure, Sub1, that separates into two substructures, Sub1-1 and ...
    Sub1-2.
    and χ Per: the distributions of the proper motions and the color-magnitude diagrams of the members of Sub1 ...
    -1 and Sub1-2 are fully consistent with those of h Per and χ Per reported in the literature.
  • metadataUnveiling the Hierarchical Structure of Open Star Clusters: The Perseus Double Cluster
    This approach identifies a single structure, Sub1, that separates into two substructures, Sub1-1 and ...
    Sub1-2.
    and χ Per: the distributions of the proper motions and the color-magnitude diagrams of the members of Sub1 ...
    -1 and Sub1-2 are fully consistent with those of h Per and χ Per reported in the literature.
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