@inproceedings{oai:jaxa.repo.nii.ac.jp:00005020,
 author = {西村, 治 and Nishimura, Osamu},
 book = {宇宙航空研究開発機構特別資料:, JAXA Special Publication: The Energetic Cosmos; from Suzaku to ASTRO-H},
 month = {Feb},
 note = {The 3rd Suzaku international Conference "Energetic Cosmos : from Suzaku to ASTRO-H" (June 29-July 2, 2009. Grand Park Otaru Hotel), Otaru, Hokkaido Japan, We model cyclotron lines by calculating a superposition of the spectra of a number of the cyclotron lines emerging from different heights of lineforming regions with nonuniform density, temperature and magnetic field strength in each region. We found that a shallower and broader fundamental line associated with a deeper second harmonic line as observed in Vela X-1 and A0535+26 can be produced via the superposition of a large number of the cyclotron lines. Our simplified model succeeds in reproducing an asymmetric line profile, an anharmonic line ratio., Meeting sponsors: The University of Tokyo, The Institute of Physical and Chemical Research, The Japan Society for the Promotion of Science, 資料番号: AA0064574088, レポート番号: JAXA-SP-09-008E},
 pages = {232--233},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {Superposition of cyclotron lines in accreting X-ray pulsars},
 volume = {JAXA-SP-09-008E},
 year = {2010}
}