A dataset provided by the European Space Agency

Name: X-ray activity cycles on young, solar-like stars: eps Eri
Published: 2017-02-16T23:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	076049
Title	X-ray activity cycles on young, solar-like stars: eps Eri
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760490301 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760490401
DOI	https://doi.org/10.5270/esa-2ituyk6
Principal Investigator, PI	Dr Beate Stelzer
Abstract	We propose to start an XMM-Newton monitoring campaign of the young, solar analogepsEri with the aim to understand dynamo cycles in the early life of the Sun.XMM-Newton has recently detected an X-ray cycle in another young solar-analog,iotaHor, displaying cycle characteristics suggesting violent activity of the Sunat age of ~600Myr. Such behaviour may affect the evolution of planetatmospheres. To verify if the peculiarities of the cycle on iotaHor arecharacteristic for the dynamos on such young stars we intend to search for theX-ray cycle of epsEri, the second youngest star with known CaII cycle(Pcyc=3.0yrs). We ask to make two snapshots during AO14 to cover together withan upcoming, already scheduled observation ~1/3 of the calcium cycle.
Publications	An X-ray activity cycle on the young solar-like star u220a Eridani \|Coffaro M. Stelzer B. et al. \| A&A \| 636-49 \| 2020 \| 2020A&A...636A..49C \| http://ui.adsabs.harvard.edu/#abs/2020A&A...636A..49C Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Characterizing X-ray activity cycles of young solar-like stars with solar observations \|Coffaro Martina Stelzer Beate \| AN \| 343-10066 \| 2022 \| 2022AN....34310066C \| http://ui.adsabs.harvard.edu/#abs/2022AN....34310066C In the Trenches of the Solar-Stellar Connection. VI. Total EclipSS \|Ayres Thomas Buzasi Derek \| ApJS \| 263-41 \| 2022 \| 2022ApJS..263...41A \| http://ui.adsabs.harvard.edu/#abs/2022ApJS..263...41A A multi-wavelength view of the multiple activity cycles of u03f5 Eridani \|Fuhrmeister B. Coffaro M. et al. \| A&A \| 672-149 \| 2023 \| 2023A&A...672A.149F \| http://ui.adsabs.harvard.edu/#abs/2023A&A...672A.149F Robust constraints on feebly interacting particles using XMM-Newton \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque Pedro De la Torre Balaji Shyam \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D New 511 keV Line Data Provide Strongest sub-GeV Dark Matter Constraints \|De la Torre Luque Pedro Balaji Shyam \| ApJ \| 973-L6 \| 2024 \| 2024ApJ...973L...6D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...973L...6D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2015-07-19T01:54:29Z/2016-02-01T01:33:21Z
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	2017-02-16T23:00:00Z
Last Update	2026-07-09
Keywords	"XMM-Newton", "xray cycle", "dynamo cycles", "calcium cycle", "planet atmospheres", "caii cycle pcyc", "XMM", "solar analog", "violent activity", "solar analog epseri", "eps eri", "displaying cycle characteristics", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Beate Stelzer, 2017, 'X-ray activity cycles on young, solar-like stars: eps Eri', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-2ituyk6
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.