Performance and calibration of the NIKA camera at the IRAM 30 m telescope
Performance and calibration of the NIKA camera at the IRAM 30 m telescope
复制标题
IRAM 30 m 望远镜上 NIKA 相机的性能和校准
DOI：
10.1051/0004-6361/201423557
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发表时间：
2014
影响因子：
6.5
通讯作者：
R. Zylka
中科院分区：
文献类型：
--
作者：
A. Catalano;M. Calvo;N. Ponthieu;R. Adam;A. Adane;P. Ade;P. André;A. Beelen;B. Belier;A. Benoȋt;A. Bideaud;N. Billot;N. Boudou;O. Bourrion;G. Coiffard;B. Comis;A. D’Addabbo;F. Désert;S. Doyle;J. Goupy;C. Kramer;S. Leclercq;J. Macías;J. Martino;P. Mauskopf;P. Mauskopf;F. Mayet;A. Monfardini;F. Pajot;E. Pascale;L. Perotto;V. Révéret;L. Rodriguez;G. Savini;K. Schuster;A. Sievers;C. Tucker;R. Zylka
新IRAM KID阵列（NIKA）仪器是一种双波段成像相机，与冷却在100 mK的动力学电感探测器（KID）一起工作。NIKA的设计目的是从皮科Veleta的IRAM 30米望远镜以1.25和2.14毫米的波长观测天空，估计分辨率分别为13角秒和18角秒。这项工作展示了NIKA相机在2014年初作为IRAM公共用户设施向天体物理界开放之前的性能。NIKA是最终NIKA 2仪器的测试台，该仪器将于2015年底安装。2012年11月和2013年6月的最后一次NIKA观测活动被用来评估这一性能，并改善对系统效应的控制。我们在这里讨论的读出电子学的动态调谐，以优化KID工作点相对于背景的变化和大气吸收校正的新技术。这些改进显著提高了NIKA的整体线性度、灵敏度和绝对校准性能。这一点在点状源的观测中得到了证明，对于1.25和2.14 mm阵列，在最佳天气条件下，我们得到的最佳灵敏度（所有有效探测器的平均值）分别为40和14 mJy.s^1/2。介绍了NIKA对著名扩展源（DR 21复合体和马头星云）的观测结果。这种性能使NIKA相机成为一种具有竞争力的天体物理仪器。
The New IRAM KID Array (NIKA) instrument is a dual-band imaging camera operating with Kinetic Inductance Detectors (KID) cooled at 100 mK. NIKA is designed to observe the sky at wavelengths of 1.25 and 2.14 mm from the IRAM 30m telescope at Pico Veleta with an estimated resolution of 13 arcsec and 18 arcsec respectively. This work presents the performance of the NIKA camera prior to its opening to the astrophysical community as an IRAM common user facility in early 2014. NIKA is a test-bench for the final NIKA2 instrument to be installed at the end of 2015. The last NIKA observation campaigns on November 2012 and June 2013 have been used to evaluate this performance and to improve the control of systematic effects. We discuss here the dynamical tuning of the readout electronics to optimize the KID working point with respect to background changes and the new technique of atmospheric absorption correction. These modifications improve significantly the overall linearity, sensitivity and absolute calibration performance of NIKA. This is proved on observations of point-like sources for which we obtain a best sensitivity (averaged over all valid detectors) of 40 and 14 mJy.s^1/2 for optimal weather conditions for the 1.25 and 2.14 mm arrays, respectively. NIKA observations of well known extended sources (DR21 complex and the Horsehead nebula) are presented. This performance makes the NIKA camera a competitive astrophysical instrument.
朝向 z = 3 的分子爱因斯坦环 93 亚毫米星系 MM18423 5938
DOI：
10.1088/2041-8205/739/1/l30
发表时间：
2011
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
Lestrade;Jean-Francois
通讯作者：
Jean-Francois
改进动感电感探测器的毫米波光度测定
影响因子：
6.5
作者：
Calvo M
通讯作者：
Calvo M