2013A&A...550A.123P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST03:03:22

2013A&A...550A.123P - Astronomy and Astrophysics, volume 550A, 123-123 (2013/2-1)

On the potential of the Cherenkov Telescope array for the study of cosmic-ray diffusion in molecular clouds.

PEDALETTI G., TORRES D.F., GABICI S., DE ONA WILHELMI E., MAZIN D. and STAMATESCU V.

Abstract (from CDS):

Molecular clouds act as primary targets for cosmic-ray interactions and are expected to shine in γ-rays as a by-product of these interactions. Indeed, several detected γ-ray sources both in HE and VHE γ-rays (HE: 100MeV<E<100GeV; VHE: E>100GeV) have been directly or indirectly associated with molecular clouds. Information on the local diffusion coefficient and the cosmic-ray population can be inferred from the observed γ-ray signals. In this work we explore the capability of the forthcoming Cherenkov Telescope Array observatory (CTA) to provide such measurements. We investigate the expected emission from clouds hosting an accelerator, surveying the parameter space for different modes of acceleration, age of the source, cloud density profile, and cosmic-ray diffusion coefficient. We present some of the most interesting cases for CTA regarding this science topic. The simulated γ-ray fluxes depend strongly on the input parameters. In several cases, we find that it will be possible to constrain both the properties of the accelerator and the propagation mode of cosmic rays in the cloud from CTA data alone.

Abstract Copyright:

Journal keyword(s): astroparticle physics - radiation mechanisms: non-thermal - ISM: clouds - cosmic rays - gamma rays: ISM

Simbad objects: 11

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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 - 2020
#notes
1 NAME Per V Cld 03 28 43 +29 02.3           ~ 5 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3479 0
3 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5596 4
4 NAME Ori A MoC 05 38 -07.1           ~ 2675 0
5 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1164 0
6 NAME Mon R2 HII 06 07 46.6 -06 22 59           ~ 650 2
7 NAME Cha Dark Cloud SFR 11 55 -78.0           ~ 557 1
8 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3027 0
9 NAME CrA Dark Cloud MoC 19 01 51 -36 58.9           ~ 394 0
10 NAME Cep Cloud SFR 22 00.0 +76 30           ~ 99 0
11 NAME Gould Belt PoG ~ ~           ~ 711 1

    Equat.    Gal    SGal    Ecl

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2020.07.10-03:03:22

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