2019A&A...629A..87D

Query : 2019A&A...629A..87D

2019A&A...629A..87D - Astronomy and Astrophysics, volume 629A, 87-87 (2019/9-1)

Rotating baryonic dark halos.

DE PAOLIS F., GURZADYAN A.V., NUCITA A.A., GURZADYAN V.G., QADIR A., KASHIN A., AMEKHYAN A., SARGSYAN S., JETZER P., INGROSSO G. and TAHIR N.

Abstract (from CDS):

Galactic halos are of great importance for our understanding of both the dark matter nature and primordial non-Gaussianity in the perturbation spectrum, a powerful discriminant of the physical mechanisms that generated the cosmological fluctuations observed today. In this paper we analyze Planck data towards the galaxy M 104 (Sombrero) and find an asymmetry in the microwave temperature which extends up to about 1° from the galactic center. This frequency-independent asymmetry is consistent with that induced by the Doppler effect due to the galactic rotation and we find a probability of less than about 0.2% that it is due to a random fluctuation of the microwave background. In addition, Planck data indicate the relatively complex dynamics of the M 104 galactic halo, and this appears to be in agreement with previous studies. In view of our previous analysis of the dark halos of nearby galaxies, this finding confirms the efficiency of the method used in revealing and mapping the dark halos around relatively nearby edge-on galaxies.

Abstract Copyright: © ESO 2019

Journal keyword(s): galaxies: general - galaxies: individual: M 104 - galaxies: halos

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12651 1
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5839 1
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7067 0
4 NAME M 81-82 Group GrG 09 55 +69.1           ~ 717 0
5 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4450 3
6 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5861 6
7 M 65 GiP 11 18 55.9084654776 +13 05 32.300703672   9.6       ~ 445 1
8 M 66 GiP 11 20 15.0 +12 59 29 9.85 9.65 8.92     ~ 1386 4
9 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1396 3
10 [RZ2004] GCl 2200 GlC 12 40 12.388 -11 38 13.01   21.108 20.44 19.967   ~ 3 0
11 [RZ2004] GCl 682 GlC 12 40 52.22 -11 50 52.7   21.704 21.01 20.570   ~ 2 0
12 M 64 SyG 12 56 43.696 +21 40 57.57   9.36 8.52     ~ 940 2
13 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1224 2
14 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4486 3
15 NAME Local Group GrG ~ ~           ~ 8393 0

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