A dataset provided by the European Space Agency

Name 089065
Title Monitoring the intermittent extreme HBL 1ES 2344+514
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0890650101

DOI https://doi.org/10.57780/esa-91r3p8i
Author Mr Axel Arbet-Engels
Description We propose to monitor 1ES 2344+514 over seven months with the goal of better
understanding its intermittent extreme behaviour. 1ES 2344+514 is a nearby
(z=0.044) high energy peaked BL Lac. So far, clear extreme behaviour of the
source has been observed only in high states. During an X-ray flare in 1996, a
shift of the synchrotron peak to frequencies above 3*10**18 Hz was reported. A
similarly extreme behaviour was not found in subsequent MWL campaigns during low
states, thus suggesting the extreme behaviour being a feature of high states.
Still, the small number of published MWL observations does not allow for a
coherent picture of the complex spectral behaviour of 1ES 2344+514.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2021-08-05T19:50:32Z/2021-08-06T04:25:32Z
Version 19.16_20210326_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 2022-08-25T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Mr Axel Arbet-Engels, 2022, 089065, 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-91r3p8i