
| Proposal ID | 050410 |
| Title | A Complete Sample of the Brightest Type 2 AGN in the SDSS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0504100201 |
| DOI | https://doi.org/10.5270/esa-4ekwupy |
| Principal Investigator, PI | Prof Tim Heckman |
| Abstract | We propose to obtain XMM-Newton data for a complete sample of the 20 brightestType 2 AGN drawn from ~100000 low-z AGN in the SDSS DR4. The sample members havea flux in the OIII5007 emission line of at least 4E-14 ergs/cm2/s. This samplehas approved Spitzer spectroscopic observations and each galaxy has a wealth ofinformation about the AGN and its host galaxy derived homogeneously from theSDSS (including the black hole mass, OIII luminosity, and Eddington ratio forthe AGN and the mass, structure, and stellar content of the galaxy). We will usethese combined data to determine the fraction of Compton-thick AGN and todetermine whether they differ systematically in terms of the properties of theAGN and the host galaxy, providing new insights into AGN physics. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-05-18T14:22:12Z/2008-04-21T16:29:59Z |
| 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 | 2009-06-07T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "sdss dr4", "complete sample", "brightest type", "approved spitzer spectroscopic", "XMM-Newton", "xmm newton data", "5007 emission line", "eddington ratio", "SDSS", "agn physics", "XMM", "blackhole mass", "agn drawn", "compton thick agn", "combined data", "stellar content" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Tim Heckman, 2009, 'A Complete Sample of the Brightest Type 2 AGN in the SDSS', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-4ekwupy |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |