“Stellar library”的版本间差异

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无编辑摘要
无编辑摘要
 
第37行: 第37行:
:22 ages, 400 Myr to 15 Gyr
:22 ages, 400 Myr to 15 Gyr
:85个读入的顺序是按照文件名排序的,可以在~/MANGA/DAP/1.1.1/external/templates/m11_stelib目录下,用ls *_s.fits查看
:85个读入的顺序是按照文件名排序的,可以在~/MANGA/DAP/1.1.1/external/templates/m11_stelib目录下,用ls *_s.fits查看

*MILES extended
:covers the optical and the infrared wavelength range between 3500 and 50000
: based on empirical stellar spectra
:Age> 1 Gyr, for metallicities between [Fe/H] = -0.40 and 0.26, for initial mass functions of various types and slopes, and on the basis of two different sets of isochrones.

2016年9月20日 (二) 02:46的最新版本

MaNGA里面用了11个库,下面的主要是对DAP里面的用的库的注释

/home/shen/MANGA/DAP/1.1.1/external/templates/m11_marcs/*_s.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/m11_stelib/*_s.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/m11_stelib_zsol/*_s.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/m11_elodie/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/m11_miles/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/miles/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/miles_avg/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/miles_thin/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/stelib/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/miuscat/*.fits
/home/shen/MANGA/DAP/1.1.1/external/templates/miuscat_thin/*.fits

以上文件路径可通过

MDAP_DEFINE_AVAILABLE_TEMPLATE_LIBRARIES, tpl_library_keys, template_libraries, tpl_vacuum_wave,dapsrc=dapsrc                                           



M11-STELIB

  • stellar library STELIB by Le Borgne et al. (2003).
  • Usable wavelength range for all ages is 3201.0 - 7900.0 AA!
  • 原始分辨率:0.5 A/pixel, and a FWHM of the resolution element of 3.1 angstroms. Resampled this to 1 A/pixel to reduce the oversampling of the spectra. The resampled spectra are named *_s.fits; the original spectra do not have the _s suffix. When constructing the library to fit the spectra, only the *_s.fits spectra are read.
  • IMF
'.ss' ==> Salpeter IMF
'.kr' ==> Kroupa IMF
'.cha' ==> Chabrier IMF
  • DAP 只用了3个金属丰度,一共85个SSP

ssp_M11_MILES.ss.z001 (z=0.01)

24 ages, 200 Myr to 15 Gyr,3201.0 - 9296.5 AA 12192 flux point

ssp_M11_MILES.ss.z002 (solar metallicity)

39 ages, 30 Myr to 15 Gyr

ssp_M11_MILES.ss.z004 (z=0.04)

22 ages, 400 Myr to 15 Gyr

:85个读入的顺序是按照文件名排序的,可以在~/MANGA/DAP/1.1.1/external/templates/m11_stelib目录下,用ls *_s.fits查看

  • MILES extended
covers the optical and the infrared wavelength range between 3500 and 50000
based on empirical stellar spectra
Age> 1 Gyr, for metallicities between [Fe/H] = -0.40 and 0.26, for initial mass functions of various types and slopes, and on the basis of two different sets of isochrones.