A dataset provided by the European Space Agency

Name 084075
Title A new class of disk-accreting white dwarfs\: diagnosing boundary layers


DOI https://doi.org/10.57780/esa-wj33kgu
Author Dr Raimundo Lopes de Oliveira
Description SU Lyn is a purely accretion-powered symbiotic star revealed for us from X-rays.
Its weak high-exciting emission lines rendered it invisible to optical surveys.
While indicating that the already significant total estimated Galactic
population of symbiotics (virgul3x10^5) is biased and thus underestimated, this
discovery opens a new window on accretion and evolution of symbiotics. Here we
propose XMM-Newton observations of two targets to go deeper in the subject\: (i)
SU Lyn, to better understand the response of the accretion disk and boundary
layer to changes in accretion rate, and (ii) IGR J17164-3803, in an exploratory
effort to validate it as a member of the class.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2020-03-30T21:33:28Z/2020-03-31T14:01:48Z
Version 18.02_20200221_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 2021-04-16T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Raimundo Lopes de Oliveira, 2021, 084075, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-wj33kgu