2011A&A...525A.138G

Query : 2011A&A...525A.138G

2011A&A...525A.138G - Astronomy and Astrophysics, volume 525A138-138 (2011/1-1)

All-sky galactic radiation at 45 MHz and spectral index between 45 and 408 MHz.

GUZMAN A.E., MAY J., ALVAREZ H. and MAEDA K.

Abstract (from CDS):

We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45MHz. We use our observations, the published all-sky map at 408MHz, and a bibliographical compilation to produce a map corrected for zero-level offset and extragalactic contribution.We present full sky maps of the Galactic emission at 45MHz and the Galactic spectral index between 45 and 408MHz with an angular resolution of 5°. The spectral index varies between 2.1 and 2.7, reaching values below 2.5 at low latitude because of thermal free-free absorption and its maximum in the zone next to the Northern Spur.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: structure - radio continuum: ISM - radiation mechanisms: non-thermal - ISM: magnetic fields - cosmic rays

VizieR on-line data: <Available at CDS (J/A+A/525/A138): wlb45.fits>

Simbad objects: 20

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Number of rows : 20
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 NAME SGP reg 00 51 26.275 -27 07 41.70           ~ 606 0
2 NGC 1316 rG 03 22 41.789 -37 12 29.52 9.81 9.15 8.53 7.66   ~ 1491 1
3 ESO 252-18A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 714 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
6 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
7 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
8 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
9 NAME Crux-Scutum Spiral Arm reg 12 30 -60.0           ~ 323 0
10 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
11 NAME NGP reg 12 51 26.275 +27 07 41.70           ~ 1274 0
12 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
13 NAME Car-Sgr Arm PoG 15 00 -40.0           ~ 581 1
14 NAME Nor Arm PoG 16 00 -50.0           ~ 485 0
15 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
16 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
17 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1
18 NAME Centaurus Arm PoG ~ ~           ~ 88 0
19 NAME Polar Spur SNR ~ ~           ~ 11 0
20 NAME Local Arm reg ~ ~           ~ 649 0

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