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Serendipitous Discovery and Parallax of a Nearby L Dwarf

机译:附近L矮星的偶然发现和视差

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摘要

A field star seredipitously observed in a parallax program proved to have a proper motion of 562 mas yr~(-1) and a parallax of 82 ± 2 mas. The star is identified with 2MASS J07003664 + 3157266. A Keck LRIS spectrum shows its spectral type to be L3.5, as expected from its infrared and optical colors and absolute magnitude. This object had not been previously recognized as an L dwarf, perhaps because of crowding at its relatively low Galactic latitude (b = +15°.8).
机译:在视差程序中观察到的一颗野外恒星被证明具有562 mas yr〜(-1)的适当运动和82±2 mass的视差。用2MASS J07003664 + 3157266标识该恒星。KeckLRIS光谱显示其光谱类型为L3.5,这是根据其红外和光学颜色以及绝对量级所预期的。该物体先前未被认为是L矮星,可能是因为它在相对较低的银河纬度上拥挤(b = + 15°.8)。

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