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| Query : 2023MNRAS.524.4212S |
2023MNRAS.524.4212S - Mon. Not. R. Astron. Soc., 524, 4212-4218 (2023/September-3)
On the Hα faintness of the North Polar Spur.
SOFUE Y., KATAOKA J. and IWASHITA R.
Abstract (from CDS):
The ratio of Hα intensity to 1.4-GHz radio continuum intensity in the North Polar Spur (NPS) is measured to be ≲ 50, two orders of magnitude smaller than the values of ∼104 observed in the typical shell-type old supernova remnants of the Cygnus Loop and S147. The extremely low Hα-to-radio intensity ratio favours the Galactic Centre explosion model for the NPS, which postulates a giant shock wave at a distance of several kiloparsecs in the hot and low-density Galactic halo with a low hydrogen recombination rate, over the local supernova(e) remnant model.
Abstract Copyright: © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
Journal keyword(s): shock waves - ISM: bubbles - ISM: individual objects: (North Polar Spur) - Galaxy: centre - galaxies: individual: (the Milky Way)
Simbad objects: 11
| Number of rows : 11 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | M 31 | AGN | 00 42 44.330 | +41 16 07.50 | 4.86 | 4.36 | 3.44 | ~ | 13622 | 1 | ||
| 2 | NGC 253 | SyG | 00 47 33.134 | -25 17 19.68 | 8.03 | 6.94 | 8.1 | ~ | 3588 | 2 | ||
| 3 | SNR G180.0-01.7 | SNR | 05 39 00.000 | +27 50 00.00 | ~ | 294 | 2 | |||||
| 4 | M 82 | AGN | 09 55 52.430 | +69 40 46.93 | 9.61 | 9.30 | 8.41 | ~ | 6156 | 6 | ||
| 5 | NGC 3079 | Sy2 | 10 01 57.8789863992 | +55 40 47.449758324 | 11.57 | 11.54 | 10.86 | ~ | 1476 | 3 | ||
| 6 | NAME North Polar Spur | ISM | 12 00 | +00.0 | ~ | 405 | 1 | |||||
| 7 | NAME Loop I | SR? | 15 01 | -38.7 | ~ | 414 | 2 | |||||
| 8 | NAME Upper Sco-Cen | As* | 16 15 | -24.2 | ~ | 1497 | 1 | |||||
| 9 | NAME Galactic Center | reg | 17 45 39.60213 | -29 00 22.0000 | ~ | 16269 | 0 | |||||
| 10 | NAME Aql Rift | DNe | 18 32 | -01.0 | ~ | 355 | 1 | |||||
| 11 | NAME Cyg Loop | SNR | 20 51.0 | +30 40 | ~ | 964 | 0 |
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