Threshold energy estimate of the proposed MACE γ -ray telescope at Hanle

M. L. Sapru; A. K. Tickoo; V. K. Dhar; S. Thoudam; R. C. Rannot; R. Koul

Threshold energy estimate of the proposed MACE γ -ray telescope at Hanle

M. L. Sapru, A. K. Tickoo, V. K. Dhar, S. Thoudam, R. C. Rannot, R. Koul

Physics

Bhabha Atomic Research Center

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

The fact that EGRET detected over 250 objects above 100 MeV while only a handful of sources have been detected above 100 GeV indicates that there is a good chance of detecting a significant number of these sources (particularly those which do not show a signature of steepening or cut off up to a few GeV), if the threshold energy of ground based telescopes is lowered to ∼ 20 GeV. In the present study, we report the threshold energy estimate of the MACE (Major Atmospheric Cerenkov Experiment) imaging telescope, proposed to be installed in the campus of Indian Astronomical Observatory at Hanle (32.8 N, 78.9 - E, 4200m asl). The results of the Monte Carlo simulations carried out with CORSIKA code, suggest that using a pixel threshold of ≥ 4pe and a nearest neighbour quadruplet trigger, γ -ray energy threshold of ∼ 15GeV is achievable by the MACE telescope. Details of the simulation work for estimating the threshold energy along with results obtained are presented in this paper.

Original language	British English
Pages	263-266
Number of pages	4
State	Published - 2005
Event	29th International Cosmic Ray Conference, ICRC 2005 - Pune, India Duration: 3 Aug 2005 → 10 Aug 2005

Conference

Conference	29th International Cosmic Ray Conference, ICRC 2005
Country/Territory	India
City	Pune
Period	3/08/05 → 10/08/05

Cite this

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title = "Threshold energy estimate of the proposed MACE γ -ray telescope at Hanle",

abstract = "The fact that EGRET detected over 250 objects above 100 MeV while only a handful of sources have been detected above 100 GeV indicates that there is a good chance of detecting a significant number of these sources (particularly those which do not show a signature of steepening or cut off up to a few GeV), if the threshold energy of ground based telescopes is lowered to ∼ 20 GeV. In the present study, we report the threshold energy estimate of the MACE (Major Atmospheric Cerenkov Experiment) imaging telescope, proposed to be installed in the campus of Indian Astronomical Observatory at Hanle (32.8 N, 78.9 - E, 4200m asl). The results of the Monte Carlo simulations carried out with CORSIKA code, suggest that using a pixel threshold of ≥ 4pe and a nearest neighbour quadruplet trigger, γ -ray energy threshold of ∼ 15GeV is achievable by the MACE telescope. Details of the simulation work for estimating the threshold energy along with results obtained are presented in this paper.",

author = "Sapru, {M. L.} and Tickoo, {A. K.} and Dhar, {V. K.} and S. Thoudam and Rannot, {R. C.} and R. Koul",

year = "2005",

language = "British English",

pages = "263--266",

note = "29th International Cosmic Ray Conference, ICRC 2005 ; Conference date: 03-08-2005 Through 10-08-2005",

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TY - CONF

T1 - Threshold energy estimate of the proposed MACE γ -ray telescope at Hanle

AU - Sapru, M. L.

AU - Tickoo, A. K.

AU - Dhar, V. K.

AU - Thoudam, S.

AU - Rannot, R. C.

AU - Koul, R.

PY - 2005

Y1 - 2005

N2 - The fact that EGRET detected over 250 objects above 100 MeV while only a handful of sources have been detected above 100 GeV indicates that there is a good chance of detecting a significant number of these sources (particularly those which do not show a signature of steepening or cut off up to a few GeV), if the threshold energy of ground based telescopes is lowered to ∼ 20 GeV. In the present study, we report the threshold energy estimate of the MACE (Major Atmospheric Cerenkov Experiment) imaging telescope, proposed to be installed in the campus of Indian Astronomical Observatory at Hanle (32.8 N, 78.9 - E, 4200m asl). The results of the Monte Carlo simulations carried out with CORSIKA code, suggest that using a pixel threshold of ≥ 4pe and a nearest neighbour quadruplet trigger, γ -ray energy threshold of ∼ 15GeV is achievable by the MACE telescope. Details of the simulation work for estimating the threshold energy along with results obtained are presented in this paper.

AB - The fact that EGRET detected over 250 objects above 100 MeV while only a handful of sources have been detected above 100 GeV indicates that there is a good chance of detecting a significant number of these sources (particularly those which do not show a signature of steepening or cut off up to a few GeV), if the threshold energy of ground based telescopes is lowered to ∼ 20 GeV. In the present study, we report the threshold energy estimate of the MACE (Major Atmospheric Cerenkov Experiment) imaging telescope, proposed to be installed in the campus of Indian Astronomical Observatory at Hanle (32.8 N, 78.9 - E, 4200m asl). The results of the Monte Carlo simulations carried out with CORSIKA code, suggest that using a pixel threshold of ≥ 4pe and a nearest neighbour quadruplet trigger, γ -ray energy threshold of ∼ 15GeV is achievable by the MACE telescope. Details of the simulation work for estimating the threshold energy along with results obtained are presented in this paper.

UR - http://www.scopus.com/inward/record.url?scp=84898965691&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84898965691

SP - 263

EP - 266

T2 - 29th International Cosmic Ray Conference, ICRC 2005

Y2 - 3 August 2005 through 10 August 2005

ER -

Threshold energy estimate of the proposed MACE γ -ray telescope at Hanle

Abstract

Conference

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