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An SiO maser search off the galactic plane

机译：SiO maser从银河平面搜索

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We searched for the SiO J = 1 -0, v = 1 and 2 maser lines at similar to 43 GHz in 277 2MASS/MSX/IRAS sources off the Galactic plane (vertical bar b vertical bar greater than or similar to 3 degrees), which resulted in 119 (112 new) detections. Among the new detections, two are very faint objects with MSX 12 mu m flux densities below 2 Jy. These are likely to be O-rich AGB-stars associated with dwarf-galaxy tidal tails. The sample also includes medium bright MSX objects at moderately high galactic latitudes (3 degrees < vertical bar b vertical bar < 5 degrees) and in the TRAS gap at higher latitudes. A signature of a warp of the inner Galactic disk is found for a disk subsample. This warp appears relatively strongly in the area of 0 degrees < l < 45 degrees and 3 degrees < vertical bar b vertical bar < 5 degrees. We also found a group of stars that does not follow to the Galactic rotation. This feature appears in the Galactic disk at l similar to 27 degrees, and extends more than 15 degrees in the galactic latitude, like a stream of tidal debris from a dwarf galaxy.
机译：我们在银河平面以外的277个2MASS / MSX / IRAS源中搜索了垂直于43 GHz的SiO J = 1 -0，v = 1和2 maser线（垂直杆b垂直杆大于或类似于3度），结果检测到119次（新发现112次​​）。在新的检测中，有两个非常微弱的物体，MSX的通量密度低于2 Jy，为12μm。这些可能是与矮星系潮汐尾有关的富含O的AGB星。该样本还包括处于中等高银河纬度（3度<垂直条b垂直条<5度）和较高纬度的TRAS间隙中的中等亮度MSX对象。为磁盘子样本找到了内部银河系磁盘的扭曲特征。在0度

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