CDS

2011A&A...527A..54K

Query : 2011A&A...527A..54K

2011A&A...527A..54K - Astronomy and Astrophysics, volume 527A, 54-54 (2011/3-1)

Detectability of ultrahigh energy cosmic-ray signatures in gamma-rays.

KOTERA K., ALLARD D. and LEMOINE M.

Abstract (from CDS):

The injection of ultrahigh energy cosmic-rays in the intergalactic medium leads to the production of a GeV-TeV gamma-ray halo centered on the source location, through the production of a high electromagnetic component in the interactions of the primary particles with the radiation backgrounds. This paper examines the prospects for the detectability of such gamma-ray halos. We explore a broad range of astrophysical parameters, including the inhomogeneous distribution of magnetic fields in the large-scale structure, as well as various possible chemical compositions and injection spectra; and we consider the case of a source located outside clusters of galaxies. We demonstrate that the gamma-ray flux associated to synchrotron radiation of ultrahigh energy secondary pairs does not depend strongly on these parameters, and conclude that its magnitude ultimately depends on the energy injected into the primary cosmic-rays. We find that the gamma-ray halo produced by equal luminosity sources (with cosmic ray luminosity and source density chosen to reproduce the measured cosmic-ray spectrum) is far fainter than current or planned instrument sensitivities. Only rare and powerful steady sources, located at distances larger than several hundreds of Mpc and contributing to a fraction > 10% of the flux at 1019eV might be detectable. We also discuss the gamma-ray halos that are produced by inverse Compton/pair production cascades seeded by ultrahigh energy cosmic-rays. This depends strongly on the configuration of the extragalactic magnetic fields; it is dominated by the synchrotron signal on a degree scale if the filling factor of magnetic fields with B>10–14G is smaller than a few percent. Finally, we briefly discuss the case of nearby potential sources such as Centaurus A.

Abstract Copyright: ∼

Journal keyword(s): astroparticle physics - gamma rays: general - magnetic fields

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4399 3

Query : 2011A&A...527A..54K

Basic data :
NAME Centaurus A -- Seyfert 2 Galaxy
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		Rad (2020A&A,CTA,...), X (2009A&A,2A,...), gam (2EG,3EG,...), G (2011MNRAS,AM,...), BLL (2010A&A,[VV2000b],...), Bla (2009A&A,[IN88],...), Sy2 (2013ApJS), rG (2010Sci), IR (IRAS,ISOSS,...), AGN (2011ApJ), QSO (QSO), Bz? (2015Ap&SS), GiG ([CHM2007]), PaG (RR95), * (Gaia), cm (AT20G)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		13 25 27.61521044 -43 01 08.8050291 (Radio) [ 0.20027 0.3998 0 ] A 2020A&A...644A.159C
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		13 22 31.61111784 -42 45 32.8968361 [ 0.20027 0.3998 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		309.51590291596 +19.41727090758 [ 0.20027 0.3998 0 ]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 547 [5] / z(~) 0.001826 [0.000017] / cz 547.50 [5.00]
   D 2011MNRAS.416.2840L
Syntax of morphological type is : mtype quality bibcode
  • mtype : Hubble morphological class (spirals, ellipticals, etc)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the morphological type reference
Morphological type: 		S0pec D 2013MNRAS.435.2274W
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		25.70 17.78 33 (Opt) D 2003A&A...412...45P
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (7) :
B 8.18 [~] C 1989ESOLV.C......0L
V 6.84 [0.08] D 2007ApJS..173..185G
R 6.66 [~] C 1989ESOLV.C......0L
G 21.136463 [0.047693] C 2020yCat.1350....0G
J 4.976 [0.016] C 2006AJ....131.1163S
H 4.271 [0.017] C 2006AJ....131.1163S
K 3.942 [0.016] C 2006AJ....131.1163S
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 6
The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 2123 		: 45 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (109) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NGC 5128 1FHL J1326.1-4303 NAME Centaurus A 2XMM J132527.6-430109
2A 1322-427 2FHL J1325.6-4301 NRL 7 XSS J13253-4302
3A 1322-427 3FHL J1325.5-4300 PBC J1325.4-4301 [A94] 35
AM 1322-424 1FLE J1324-4319 PKS 1322-428 [CHM2007] HDC 790 J132527.75-4301073
APG 153 GRO J1314-42 PKS J1325-4303 [CHM2007] LDC 993 J132527.75-4301073
AT20G J132527-430104 1H 1323-428 PKS 1322-42 [CRA98] 4
AT20G J132527.7-430107 H 1322-427 PKS 1322-427 [IN88] 1322-428
CTA 59 HIPASS J1324-42 PLCKERC -857 G309.51+19.41 [KJK2017] J1325-4301
Cul 1322-42 ICRF J132527.6-430108 PMN J1325-4257 [KRL2007b] 139
Cul 1322-427 IERS B1322-427 PRC C-45 [M98c] 132233.0-424524
6dFGS gJ132527.7-430108 INTEGRAL1 11 PSCz Q13225-4245 [MEM2008] 179
2E 3038 INTREF 559 QDOT B1322304-424530 [MGL2009] BZU J1325-4301
2E 1322.5-4245 IRAS 13225-4245 QSO B1322-428 [MML2015] 5BZU J1325-4301
2EG J1324-4317 IRAS F13225-4245 RORF 1322-427 [NZ2007] 25
3EG J1324-4314 ISOSS J13253-4300 RR95 245a [OKM2018] SWIFT J1325.4-4301
EGR J1328-4337 1Jy 1322-428 RX J132524.4-430100 [PT56] 27
1ES 1322-42.7 1Jy 1322-42 RX J1325.5-4301 [SLK2004] 837
ESO 270-9 LEDA 46957 SGC 132233-4245.4 [VDD93] 184
ESO-LV 270-0090 1M 1322-427 SPB 216 [VV2000b] J132528.0-430100
0FGL J1325.4-4303 2MASX J13252775-4301073 SUMSS J132528-430110 [VV2003b] J132528.0-430100
1FGL J1325.6-4300 2MAXI J1325-429 SWIFT J1325.4-4301 [VV2006b] J132528.0-430100
1FGL J1322.0-4515 MCG-07-28-001 SWIFT J1325.4-4300 [VV2010b] J132528.0-430100
2FGL J1325.6-4300 Mills 13-4A TeV J1325-430 [VV98b] J132528.0-430100
2FGL J1324.0-4330e MOST 1322-427 2U 1322-42 [WCO2009] J132533-425925
3FGL J1324.0-4330e MRC 1322-427 3U 1322-42 Gaia DR3 6088704625623244416
3FGL J1325.4-4301 MSH 13-4-02 4U 1322-42
4FGL J1324.0-4330e NAME Cen A VSOP J1325-4301
4FGL J1325.5-4300 NAME Cen-A WMAP J1325-4301

References (4399 between 1850 and 2023) (Total 4399)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements


velocities : 10    distance : 12   

   

Observing logs


herschel : 66    ISO : 44    IUE : 37    XMM : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : NAME Centaurus A

Link by name to the catalogue in VizieR :

NGC 5128 APG 153 2E 3038 3EG J1324-4314 ESO-LV 270-0090
HIPASS J1324-42 IERS B1322-427 IRAS 13225-4245 IRAS F13225-4245 2MASX J13252775-4301073
PKS 1322-428 PKS J1325-4303 PKS 1322-42 PKS 1322-427 PMN J1325-4257
SUMSS J132528-430110 VSOP J1325-4301 WMAP J1325-4301 Gaia DR3 6088704625623244416

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2023.10.01-20:19:30

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