A dataset provided by the European Space Agency

Name: Where in the Milky Way is the North Polar Spur
Published: 2016-11-04T23:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	076008
Title	Where in the Milky Way is the North Polar Spur
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760080101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760080201 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760080301
DOI	https://doi.org/10.5270/esa-3p1d6oe
Principal Investigator, PI	Dr K.D. Kuntz
Abstract	The North Polar Spur (NPS) is a region of strong diffuse X-ray emission that isgenerally thought to be the edge of the Loop I superbubble, at a distance of~150pc. However, it may also be the limb of a supershell at the Galactic center.The implications for the plasma, energy, and dynamics involved are extreme. Wewill determine the location of the NPS using a series of overlappingobservations of the southern terminus of the NPS. Comparison with the Galacticdistribution of X-ray absorbing material will allow us to constrain the distanceto the X-ray emission. This proposal requests the reobservation of threepointings from our accepted AO-13 large project which were contaminated by softprotons beyond usage.
Publications	On the distance to the North Polar Spur and the local CO-H2 factor \|Lallement R. Snowden S. et al. \| A&A \| 595-131 \| 2016 \| 2016A&A...595A.131L \| http://ui.adsabs.harvard.edu/#abs/2016A&A...595A.131L An Analysis of the North Polar Spur Using HaloSat \|LaRocca Daniel M. Kaaret Philip et al. \| ApJ \| 904-54 \| 2020 \| 2020ApJ...904...54L \| http://ui.adsabs.harvard.edu/#abs/2020ApJ...904...54L 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 North Polar Spur/Loop I: gigantic outskirt of the Northern Fermi bubble or nearby hot gas cavity blown by supernovae? \|Lallement Rosine \| CRPhy \| 23-1 \| 2023 \| 2023CRPhy..23S...1L \| http://ui.adsabs.harvard.edu/#abs/2023CRPhy..23S...1L The Fermi/eROSITA bubbles: a look into the nuclear outflow from the Milky Way \|Sarkar Kartick C. \| A&ARv \| 32-1 \| 2024 \| 2024A&ARv..32....1S \| http://ui.adsabs.harvard.edu/#abs/2024A&ARv..32....1S The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R 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 Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M 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	2015-09-14T03:43:24Z/2015-10-10T20:57:12Z
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	2016-11-04T23:00:00Z
Last Update	2026-07-09
Keywords	"soft protons", "galactic center", "xray absorbing material", "xray emission", "galactic distribution", "southern terminus", "dynamics involved", "north polar spur", "diffuse xray emission"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr K.D. Kuntz, 2016, 'Where in the Milky Way is the North Polar Spur', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-3p1d6oe
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.