LAMOST光谱巡天第十二次数据发布第〇版

LAMOST第十二次巡天数据发布第〇版（LAMOST DR12 V0 ），释放了 2023年9月18日到2024年6月15日之间获取的光谱数据，包括低分辨率光谱和中分辨率光谱两部分。其中低分辨率观测了319个天区，中分辨率观测了499个天区。共释放低分辨率光谱数 672,482条，其中包括664,030条恒星、2,232条星系、6,220条类星体。还包括一个有461,719 颗AFGK恒星的光谱参数星表。另外，释放中分辨率合并光谱2,214,652条，中分辨率单次曝光光谱 7,032,745条，还有632,732颗恒星光谱参数。

The 0th version of LAMOST's 12th Survey Data Release (LAMOST DR12 V0) releases spectroscopic data acquired between September 18, 2023 and June 15, 2024, which consists of two parts: low-resolution spectroscopy (LRS) and medium-resolution spectroscopy (MRS). A total of 319 sky fields were observed in low-resolution mode, while 499 sky fields were observed in medium-resolution mode. In total, 672,482 low-resolution spectra are released, including 664,030 stellar spectra, 2,232 galaxy spectra, and 6,220 quasar spectra. Additionally, a spectroscopic parameter catalog containing 461,719 AFGK-type stars is provided. For medium-resolution data, 2,214,652 merged medium-resolution spectra, 7,032,745 single-exposure medium-resolution spectra, and a spectroscopic parameter catalog for 632,732 stars are also released.

搜集汇总

背景与挑战

背景概述

LAMOST DR12 v0是LAMOST望远镜在2023年9月至2024年6月期间观测的光谱数据发布，包含低分辨率和中分辨率光谱，总计释放超过672,000个低分辨率光谱和220万个中分辨率合并光谱，并提供了恒星参数目录。数据覆盖光学波段，专注于宇宙学和恒星研究，总数据量约18.16 GB，以有条件在线方式共享。