Cancer and COVID-19 vaccines: a complex global picture Comment

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Yusuf A., Sarfati D., Booth C. M., Pramesh C. S., Lombe D., Aggarwal A., ...More

LANCET ONCOLOGY, vol.22, no.6, pp.749-751, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Editorial Material
  • Volume: 22 Issue: 6
  • Publication Date: 2021
  • Doi Number: 10.1016/s1470-2045(21)00244-8
  • Journal Name: LANCET ONCOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CAB Abstracts, CINAHL, EMBASE, MEDLINE
  • Page Numbers: pp.749-751
  • Hacettepe University Affiliated: Yes


ASCA and GINGA X-ray data from the magnetic Cataclysmic Variable BY Cam show that the spectrum is strongly affected by complex absorption, probably from the pre-shock accretion column. The intrinsic emission from the shock is significantly better described by the theoretically expected multi-temperature structure rather than a single temperature plasma, but with cyclotron cooling probably suppressing the highest temperature bremsstrahlung components. Reflection of this multi-temperature emission from the white dwarf surface is also significantly detected. All these spectral complexities are required to gain a physically self-consistent picture of the X-ray spectrum.