A dataset provided by the European Space Agency

Name 040502
Title Unabsorbed type 2 Seyfert galaxies: a challenge for Unified Models


DOI https://doi.org/10.5270/esa-1j3imjr
Author Dr Stefano Bianchi
Description We propose to observe with XMM-Newton a sample of .bona-fide. Seyfert 2 galaxies
with no X-ray absorption. The selected sources are a conservative subsample
taken from the Panessa & Bassani (2002) sample, including only Seyfert 2s where
no column density in excess of the Galactic one has ever been observed in the
X-rays, within sensitive limits. The primary goal of this proposal is to find
objects unabsorbed in the X-rays and without broad optical lines, which would
represent a serious challenge to simple AGN Unification Models. The key to find
genuine .unabsorbed Seyfert 2s., excluding variability issues, is to perform
simultaneous X-ray and optical spectroscopy. We therefore intend to coordinate
ground-based optical observations with the XMM-Newton observations.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2006-10-06T14:47:22Z/2006-11-23T08:28:28Z
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 2008-01-04T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Stefano Bianchi, 2008, 040502, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-1j3imjr