Untitled

Bahmanabadi, M.; Anvari, A.; Rastegarzadeh, Gohar; Samimi, J.; Rachti, M. Lamehi

doi:10.1023/a:1008040520742

Cited by 6 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our array is constructed of four slab of plastic scintillation detectors (100×100×2 cm 3 ). They are housed in white painted pyramidal boxes [11] which arranged in a square; at 51 • 20 ′ E and 35 • 43 ′ N, elevation 1200 m (≡ 890 g cm −2 ). Two different experimental configurations were used in the experimental set up.…”

Section: Experimental Arrangementmentioning

confidence: 99%

Observation of EGRET gamma-ray sources by an Extensive Air Shower experiment

Ghomi

Bahmanabadi

Samimi

2005

A&A

Self Cite

View full text Add to dashboard Cite

Abstract. Ultra-high-energy (E > 100 TeV) Extensive Air Showers (EASs) have been monitored for a period of five years (1997)(1998)(1999)(2000)(2001)(2002)(2003), using a small array of scintillator detectors in Tehran, Iran. The data have been analyzed taking into account the dependence of source counts on zenith angle. During a calendar year different sources come into the field of view of the detector at varying zenith angles. Because of varying thickness of the overlaying atmosphere, the shower count rate is extremely dependent on zenith angle, which has been carefully analyzed over time (Bahmanabadi et al. 2002, Exp. Astron., 13, 39). High energy gamma-ray sources from the EGRET third catalogue where observed and the data were analyzed using an excess method. Upper limits were obtained for a number of EGRET sources, including 6 AGNs or probably AGNs and 4 unidentified sources.

show abstract

Section: Experimental Arrangementmentioning

confidence: 99%

Observation of EGRET gamma-ray sources by an Extensive Air Shower experiment

Ghomi

Bahmanabadi

Samimi

2005

A&A

Self Cite

View full text Add to dashboard Cite

show abstract

“…Each scintillator is housed in a pyramidal steel box with a height of 15 cm. The interior surface of each box is coated with white paint (Bahmanabadi et al 1998) and a 5 cm diameter photo multiplier tube (PMT, EMI 9813 KB) is placed at the vertex of the pyramidal box. Figure 1 shows a schematic diagram of the array and its electronic circuit which logs each EAS event.…”

Section: Introductionmentioning

confidence: 99%

Galactic Anisotropy of Cosmic Ray Intensity Observed by an Air Shower Experiment

Bahmanabadi

Ghomi

Sheidaei

et al. 2006

Publ. – Astron. Soc. Aust

View full text Add to dashboard Cite

Abstract:We have monitored multi-TeV cosmic rays by a small air shower array in Tehran (35843 0 N, 51820 0 E, 1200 m = 890 g cm -2 ). More than 1.1 6 10 6 extensive air shower events were recorded. These observations enabled us to analyse sidereal variation of the galactic cosmic ray intensity. The observed sidereal daily variation is compared to the expected variation which includes the Compton-Getting effect due to the motion of the earth in the Galaxy. In addition to the Compton-Getting effect, an anisotropy has been observed which is due to a unidirectional anisotropy of cosmic ray flow along the Galactic arms.

show abstract

Observation of cosmic ray flux deficit in the direction of the sun using a charged particle traking telescope

Bahmanabadi

2017

Astroparticle Physics

View full text Add to dashboard Cite

Untitled

Cited by 6 publications

References 9 publications

Observation of EGRET gamma-ray sources by an Extensive Air Shower experiment

Observation of EGRET gamma-ray sources by an Extensive Air Shower experiment

Galactic Anisotropy of Cosmic Ray Intensity Observed by an Air Shower Experiment

Observation of cosmic ray flux deficit in the direction of the sun using a charged particle traking telescope

Contact Info

Product

Resources

About