| Proposal ID | 014844 |
| Title | The Anisotropic Radiation Transfer due to Resonance Scattering in MCVs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148440101 |
| DOI | https://doi.org/10.5270/esa-mqgbewo |
| Principal Investigator, PI | Mr Yukikatsu TERADA |
| Abstract | The aim of this proposal is to confirm a new idea of anisotropic transfer forresonance photons in an accretion column on magnetic cataclysmic variables,which we have proposed to explain unusually strong Fe-K lines observed from somepolars with ASCA (Terada et al 1999). We have then confirmed the idea vianumerical simulations and via detection of rotational modulation in the Fe-Kline EW with ASCA (Terada et al 2001). However, the observational confirmationof the line beaming effect has so far been confirmed only from a few polars,and with marginal significance. With Newton, we expect to measure the effectfrom a much larger sample, with a much higher significance. The effect, ifestablished, will afford a valuable new diagnostic tool of the plasmas in MCVs. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2002-12-16T21:53:55Z/2002-12-17T06:06:34Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2004-02-01T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "larger sample", "anisotropic radiation transfer", "via detection", "accretion column", "resonance scattering", "resonance photons", "anisotropic transfer", "line ew", "asca terada 1999", "diagnostic tool", "magnetic cataclysmic variables", "marginal significance", "rotational modulation", "asca terada 2001" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Yukikatsu TERADA, 2004, 'The Anisotropic Radiation Transfer due to Resonance Scattering in MCVs', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-mqgbewo |