A dataset provided by the European Space Agency

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
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674600701
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674600801
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674601001
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674601101

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