论文标题
对当地组NGC 6822中与恒星形成区域相关的敏感搜索与恒星形成区域相关的敏感搜索
A sensitive search for water masers associated with star formation regions in the Local Group galaxy NGC 6822
论文作者
论文摘要
我们报告了当地组NGC 6822中对水泥的敏感搜索的结果，而Karl G. Jansky非常大。这些观察结果提供了四个候选物的初次检测，这些检测与两个红外线恒星形成区（Hubble I/III和Hubble IV）有关。候选MASER检测均与速度范围相抵消，在速度范围内，观察到来自HI中性气体的强烈发射到NGC 6822，最接近40 kms $^{ - 1} $。我们的观察结果包括NL1K的位置，NL1K是NGC 6822中先前的暂定水酶检测。我们没有从该位置检测到任何敏感性极限的发射，大约比原始的Sardina射电望远镜观测值高约5倍。
We report the results of a sensitive search for water maser emission in the Local Group Galaxy NGC 6822 with the Karl G. Jansky Very Large Array. The observations provide tentative single-epoch detections of four candidates, associated with two infrared-bright star formation regions (Hubble I/III and Hubble IV). The candidate maser detections are all offset from the velocity range where strong emission from HI neutral gas is observed toward NGC 6822, with the closest offset by 40 kms$^{-1}$. Our observations include the location of NL1K, a previous tentative water maser detection in NGC 6822. We do not detect any emission from this location with a sensitivity limit approximately a factor of 5 better than the original Sardina Radio Telescope observations.
