2009ApJ...698.2121A

Query : 2009ApJ...698.2121A

2009ApJ...698.2121A - Astrophys. J., 698, 2121-2130 (2009/June-3)

The large-scale cosmic-ray anisotropy as observed with Milagro.

ABDO A.A., ALLEN B.T., AUNE T., BERLEY D., CASANOVA S., CHEN C., DINGUS B.L., ELLSWORTH R.W., FLEYSHER L., FLEYSHER R., GONZALEZ M.M., GOODMAN J.A., HOFFMAN C.M., HOPPER B., HUNTEMEYER P.H., KOLTERMAN B.E., LANSDELL C.P., LINNEMANN J.T., McENERY J.E., MINCER A.I., NEMETHY P., NOYES D., PRETZ J., RYAN J.M., SAZ PARKINSON P.M., SHOUP A., SINNIS G., SMITH A.J., SULLIVAN G.W., VASILEIOU V., WALKER G.P., WILLIAMS D.A. and YODH G.B.

Abstract (from CDS):

Result. are presented of a harmonic analysis of the large-scale cosmic-ray (CR) anisotropy as observed by the Milagro observatory. We show a two-dimensional display of the sidereal anisotropy projections in right ascension (R.A.) generated by the fitting of three harmonics to 18 separate declination bands. The Milagro observatory is a water Cherenkov detector located in the Jemez mountains near Los Alamos, New Mexico. With a high duty cycle and large field of view, Milagro is an excellent instrument for measuring this anisotropy with high sensitivity at TeV energies. The analysis is conducted using a seven-year data sample consisting of more than 95 billion events, the largest such data set in existence. We observe an anisotropy with a magnitude around 0.1% for CRs with a median energy of 6 TeV. The dominant feature is a deficit region of depth (2.49±0.02 stat.±0.09 sys.) x10^–3 in the direction of the Galactic north pole centered at 189 deg R.A. We observe a steady increase in the magnitude of the signal over seven years.

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Journal keyword(s): cosmic rays - Galaxy: halo - ISM: magnetic fields - solar neighborhood - Sun: activity - supernova remnants

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 - 2026	#notes
1	NAME Vela	SNR	08 34.0	-45 50						~	1331	2

Query : 2009ApJ...698.2121A

Basic data :

NAME Vela -- SuperNova Remnant
Other object types:	`SNR (2009BASI,AJG,...)`, `X (1E,1ES,...)`, `gam (1FGL)`, `Rad (GRS)`, `UV (2RE)`
ICRS coord. (ep=J2000) :	`08 34 00.0 -45 50 00 (Radio) [ ] E 2009BASI...37...45G`
FK4 coord. (ep=B1950 eq=1950) :	`08 32 20.1 -45 39 39 [ ]`
Gal coord. (ep=J2000) :	`263.9390 -03.3683 [ ]`
Angular size (arcmin):	`255.0 255.0 90 (Rad) D` `2014BASI...42...47G`

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`NAME Vela`	`GRS G263.90 -03.00`	`2RE J0838-430`	`SNR G263.4-03.0`
`AJG 8`	`GRS G263.90 -03.30`	`2RE J083856-430913`	`SNR G263.9-03.3`
`1E 0840.0-4430`	`MSC 263.9-3.3`	`RE J0838-430`
`1ES 0839-44.5`	`NAME Vela SNR`	`RE J083854-430902`
`1FGL J0841.9-4620`	`NAME Vela XYZ`	`SNR G263.9-03.0`

References (1331 between 1850 and 2026) (Total 1331)
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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2RE J0838-430 2RE J083856-430913

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