A dataset provided by the European Space Agency

Name 011249
Title A Study of the Local Bubble spectrum by X-ray shadowing the Aquila Rift cloud


DOI https://doi.org/10.5270/esa-f2cw33k
Author Dr Bernd Aschenbach
Description GT- The nearby molecular cloud Aquila Rift at a distance of 100 pc marks the
interface between the Local Bubble (LB) and the Loop I superbubble. Background
emission up to at least 1.5 keV is efficiently blocked off by N(H)=1.5 10^{22}
cm^{-2}. Thus we will study the pure LB spectrum in this energy range. The
spectral resolution of EPIC pn will allow us to measure relative line
intensities and thus to distinguish between collisional ionization equilibrium
and non-equilibrium plasma states. In particular, the open question of a 3/4 keV
contribution of the LB to the X-ray background can be resolved. On- and off-
cloud observations can allow to discriminate between fore- and background
spectra. Three adjacent 20 ksec observations will cover the steepest gradient.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2003-09-15T02:22:42Z/2003-09-19T11:35:19Z
Version 17.56_20190403_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 2004-10-31T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Bernd Aschenbach, 2004, 011249, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-f2cw33k