Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program

分类： 天文学 >> 天文学 提交时间： 2023-02-19

Elise Darragh-Ford John F. Wu Yao-Yuan Mao Risa H. Wechsler Marla Geha Jaime E. Forero-Romero ChangHoon Hahn Nitya Kallivayalil John Moustakas Ethan O. Nadler Marta Nowotka J. E. G. Peek Erik J. Tollerud Benjamin Weiner J. Aguilar S. Ahlen D. Brooks A. P. Cooper A. de la Macorra A. Dey

摘要： We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method. Our selection consists of a set of color and surface brightness cuts, combined with modern machine learning methods, to optimally target low-redshift dwarf galaxies (z 95% complete in target selection at z < 0.03 between 19 展开 -->

同行评议状态:待评议

 点击量 32  下载量 29  评论