What is New ？

 

Compared with the previous data release, DR11 v1.0, this release introduces the following major updates.

 

1. The metallicity parameter "m_h_cnn", derived using a convolutional neural network (CNN) , has been added into the "the LAMOST MRS Parameter Catalog". The corresponding table description of this table has also been updated accordingly.

2. The table description of the "LAMOST LRS Stellar Parameter Catalog for A, F, G, and K-type stars" has been updated. Specifically, it now includes an introduction to the wavelength ranges used for atmospheric parameter measurements of A and F/G/K type stars, respectively. Additionlly, the language expression concerning parameter error estimation has been refined.

3. The spectral templates used for the atmospheric parameter measurement of M type stars in the "LAMOST LRS Catalog of gM, dM, and sdM stars" has been updated. Specifically, they have been changed from the theoretical template of "BT-Settl CIFIST2011" to the LAMOST Observed Spectral Library^[1]. Correspondingly, the language in Section 3.4 has also been refined.

 

 

 

 

 

 

1. Bing D.，A-Li,  L., Song, W.  et al.  2024, An Empirical Sample of Spectra of M-type Stars with Homogeneous Atmospheric-Parameter Labels, submitted to ApJS.