JWST

来自Shiyin's note
Shen讨论 | 贡献2023年12月23日 (六) 08:51的版本 →‎MIRI
跳到导航 跳到搜索

NIRspec

  • NIRSpec is equipped with an integral field unit optimized for the spectroscopic study of complex extended objects. It will provide 900 spectra per exposure over a field of view of 3 x 3 arcminutes.(0.6-5mu)

MIRI

  • 用CAFE拟合,可以得到9.7mu的尘埃光深
  • H2的转动线S(1)-S(7),可以直接测量H2的含量
  • [Ne iii]1.56mu/[Ne ii]12.81mu, which is an indicator of the hardness of the local radiation field
  • “The SFR can be estimated with the Pf α, [Ne ii], and [Ne iii] measurements. By assuming a Case B scenario, we translate our Pf α flux to Hα and apply Equation (2) in Murphy et al. (2011) to derive the SFR in our extracted regions.
  • 可以用image-registration的方法来把图对齐,从而解天体测量。https://doi.org/10.3847/2041-8213/acaaae

sciences

  • 高红移spiral星系的比例挺高的,至少20% @z~3 [1]

projects