Name | 067460 |
Title | Crucial measurements of Sgr A* variability with XMM and VLT |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674600601 |
DOI | https://doi.org/10.5270/esa-4sp5gg3 |
Author | Dr Andrea Goldwurm |
Description | We propose simultaneous XMM and VLT observations of Sgr A* to study the physical processes at work during its near-infrared/X-ray flares. The aim is to obtain for the first time accurate spectral shape of the flares simultaneously in both X-ray and NIR bands. This is the fundamental, still missing, measurement needed to constrain the flare emission mechanism, that will be within reach with the implementation of the laser guide NACO prism spectroscopy mode at the VLT at the time of the proposed observations. With this program we will also further constrain the powerful activity that Sgr A* experienced in the past, through the monitoring of long term variations of the iron line emission from the surrounding molecular clouds. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2012-03-13T03:52:36Z/2012-03-21T10:09:18Z |
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 | 2013-04-11T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Andrea Goldwurm, 2013, 067460, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4sp5gg3 |