A dataset provided by the European Space Agency

Proposal ID 030321
Title Simultaneous XMM-Newton - RXTE observations of 1E1740.7-2942
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0303210201

DOI https://doi.org/10.5270/esa-t2n6lwq
Principal Investigator, PI Dr Emrah Kalemci
Abstract It has been known that sources that have high absorption column density (NH)also have high dust column density along the line of sight. The differentialdelays caused by small angle scattering from dust may have important effects onthe power spectra of Galactic black holes (GBHs) at low energies, and impactstudies that use the relation between the rms amplitude of variability andenergy to determine the origin of QPOs from these sources. We propose to observehigh NH (1E23 cm-2) GBH 1E1740.7-2942 for 20 ks simultaneously with XMM-Newtonand RXTE. By comparing the power spectra from the PSF in XMM-Newton (usingimaging and excluding the scattering halo) and the RXTE data, we willinvestigate the effects of small angle scattering on the timing properties of GBHs.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2005-10-02T01:15:14Z/2005-10-02T07:53:47Z
Version 21.51_20241115_1113
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 2006-10-21T00:00:00Z
Last Update 2026-07-09
Keywords "nh 1e23 cm", "XMM-Newton", "dust column density", "differential delays", "galactic blackhole gbhs", "rxte data", "XMM", "power spectra", "gbh 1e1740", "low energies", "rms amplitude", "angle scattering", "xmm newton rxte", "scattering halo", "xmm newton"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Emrah Kalemci, 2006, 'Simultaneous XMM-Newton - RXTE observations of 1E1740.7-2942', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-t2n6lwq
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.