XMM-Newton Large Programme Details



PROPOSAL OVERVIEW
Proposal Title Where in the Milky Way is the North Polar Spur
Proposal Category Supernovae, Supernova Remnants, Diffuse (Galactic) Emission and Isolated Neutron Stars
Proposal Type LARGE PROGRAM
Proposal Id 74189
Number of Observations 19
Total exposure time (ks) 444

PI DETAILS
PI Dr K.D. Kuntz
Institute Johns Hopkins University
Country UNITED STATES

CO-INVESTIGATORS
Name Country
S. Snowden UNITED STATES
R. Lallement FRANCE
D. Koutroumpa FRANCE
L. Puspitarini FRANCE
I. Grenier FRANCE
J. Casandjian FRANCE

ABSTRACT
The North Polar Spur (NPS) is a region of strong diffuse X-ray emission that extends in a wide arc from l,b =25deg,10deg to 330deg,75deg. Conventional wisdom says that the NPS is the limb-brightened edge of the Loop I superbubble, roughly centered on, and likely powered by the Sco-Cen OB association, placing it at a distance of 100-200 pc. However, it has also been seen as a supershell centered on the Galactic center, and the implications for the plasma and energy involved are extreme. We propose to determine the location of the NPS using a series of overlapping observations of the southern terminus. Comparison with the Galactic distribution of X-ray absorbing material will allow us to determine if the NPS is absorption bounded, and by which ISM features, thus revealing the distance to the NPS.

PAPERS
Authors marked in red are (co-)investigators in the proposal

Classification of papers are:
- CLASS 1:   papers that present specific XMM-Newton observations
- CLASS 2: papers that refer to published XMM-Newton results with complementary observations, follow-up analysis, or theoretical analysis
- CLASS 3: further deliveries which resulted from the program and which are made available to the community (e.g. source catalogues, processed images or spectra in public data base)
- CLASS 4: comments and suggestions from PI

CLASS 1 (6 references)
  1. " On the distance to the North Polar Spur and the local CO-H2 factor "
    Lallement, R.; Snowden, S.; Kuntz, K. D.; Dame, T. M.; Koutroumpa, D.; Grenier, I.; Casandjian, J. M.;
    2016 - Astronomy & Astrophysics, Volume 595, id.A131, pp.
    Number of Citations: 13
    https://ui.adsabs.harvard.edu/search/q=bibcode:2016A&A...595A.131L
    DOI: 10.1051/0004-6361/201629453

  2. " The Million Optical - Radio/X-ray Associations (MORX) Catalogue "
    Flesch, Eric W.;
    2016 - Publications of the Astronomical Society of Australia, Volume 33, id.e052 pp.
    Number of Citations: 17
    https://ui.adsabs.harvard.edu/search/q=bibcode:2016PASA...33...52F
    DOI: 10.1017/pasa.2016.44

  3. " An Analysis of the North Polar Spur Using HaloSat "
    LaRocca, Daniel M.; Kaaret, Philip; Kuntz, K. D.; Hodges-Kluck, Edmund; Zajczyk, Anna; Bluem, Jesse; Ringuette, Rebecca; Jahoda, Keith M.;
    2020 - The Astrophysical Journal, Volume 904, Issue 1, id.54, pp.
    Number of Citations: 2
    https://ui.adsabs.harvard.edu/search/q=bibcode:2020ApJ...904...54L
    DOI: 10.3847/1538-4357/abbdfd

  4. " Classification of 4XMM-DR9 sources by machine learning "
    Zhang, Yanxia; Zhao, Yongheng; Wu, Xue-Bing;
    2021 - Monthly Notices of the Royal Astronomical Society, Volume 503, Issue 4, pp.5263-5273
    Number of Citations: 0
    https://ui.adsabs.harvard.edu/search/q=bibcode:2021MNRAS.503.5263Z
    DOI: 10.1093/mnras/stab744

  5. " ESASky SSOSS: Solar System Object Search Service and the case of Psyche "
    Racero, E.; Giordano, F.; Carry, B.; Berthier, J.; Mueller, T.; Mahlke, M.; Valtchanov, I.; Baines, D.; Kruk, S.; Merin, B.; Besse, S.; Kueppers, M.; Puga, E.; Gonzalez Nunez, J.; Rodriguez, P.; de la Calle, I.; Lopez-Marti, B.; Norman, H.; Wangblad, M.; Lopez-Caniego, M.; Alvarez Crespo, N.;
    2022 - Astronomy & Astrophysics, Volume 659, id.A38, pp.
    Number of Citations: 0
    https://ui.adsabs.harvard.edu/search/q=bibcode:2022A&A...659A..38R
    DOI: 10.1051/0004-6361/202140899

  6. " North Polar Spur/Loop I: gigantic outskirt of the Northern Fermi bubble or nearby hot gas cavity blown by supernovae? "
    Lallement, Rosine;
    2023 - Comptes Rendus. Physique, vol. 23, issue S2, pp. 1-24
    Number of Citations: 2
    https://ui.adsabs.harvard.edu/search/q=bibcode:2023CRPhy..23S...1L
    DOI: 10.3847/1538-4357/acf45a