Detection of diffuse TeV gamma-ray emission from the neaby starburst galaxy NGC 253

被引：27

作者：

Itoh, C

Enomoto, R ^{[1
]}

Yanagita, S

Yoshida, T

Asahara, A

Bicknell, GV

Clay, RW

Edwards, PG

Gunji, S

Hara, S

Hara, T

Hattori, T

Hayashi, S

Kabuki, S

Kajino, F

Katagiri, H

Kawachi, A

Kifune, T

Kubo, H

Kushida, J

Matsubara, Y

Mizumoto, Y

Mori, M

Moro, H

Muraishi, H

Muraki, Y

Naito, T

Nakase, T

Nishida, D

Nishijima, K

Okumura, K

Ohishi, M

Patterson, JR

Protheroe, RJ

Sakurazawa, K

Swaby, DL

Tanimori, T

Tokanai, F

Tsuchiya, K

Tsunoo, H

Uchida, T

Watanabe, A

Watanabe, S

Yoshikoshi, T

机构：

[1] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan

[2] Ibaraki Univ, Fac Sci, Mito, Ibaraki 3108512, Japan

[3] Kyoto Univ, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan

[4] Australian Natl Univ, Mt Stromlo & Siding Spring Observ, Weston, ACT 2611, Australia

[5] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia

[6] Inst Space & Aeronaut Studies, Sagamihara, Kanagawa 2298510, Japan

[7] Yamagata Univ, Dept Phys, Yamagata 9908560, Japan

[8] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[9] Yamanashi Gakuin Univ, Fac Management Informat, Kofu, Yamanashi 4008575, Japan

[10] Tokai Univ, Dept Phys, Hiratsuka, Kanagawa 2591292, Japan

[11] Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan

[12] Shinshu Univ, Fac Engn, Nagano 3808553, Japan

[13] Nagoya Univ, STE Lab, Nagoya, Aichi 4648601, Japan

[14] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[15] Ibaraki Prefectural Univ Hlth Sci, Dept Radiol Sci, Ibaraki 3000394, Japan

[16] Osaka City Univ, Dept Phys, Osaka 5588585, Japan

来源：

ASTRONOMY & ASTROPHYSICS | 2002年 / 396卷 / 01期

关键词：

gamma rays : observation; galaxies : individual : NGC 253; galaxies : starburst; cosmic rays;

D O I：

10.1051/0004-6361:20021565

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC 253. At a distance of similar to2.5 Mpc, NGC 253 is one of the nearest starburst galaxies. This relative closeness, coupled with the high star formation rate in the galaxy, make it a good candidate TeV gamma-ray source. Observations were carried out in 2000 and 2001 with the CANGAROO-II 10 m imaging atmospheric Cerenkov telescope. TeV gamma-ray emission is detected at the similar to11sigma level with a flux of (7.8 +/- 2.5) x 10(-12) cm(-2) s(-1) at energies > 0.5 TeV. The data indicate that the emission region is broader than the point spread function of our telescope.

引用

页码：L1 / L4

页数：4

共 21 条

[1] The energy spectrum of TeV gamma rays from the Crab Nebula as measured by the HEGRA system of imaging air Cerenkov telescopes [J].

Aharonian, FA ;

Akhperjanian, AG ;

Barrio, JA ;

Bernlöhr, K ;

Bojahr, H ;

Calle, I ;

Contreras, JL ;

Cortina, J ;

Denninghoff, S ;

Fonseca, V ;

Gonzalez, JC ;

Götting, N ;

Heinzelmann, G ;

Hemberger, M ;

Hermann, G ;

Heusler, A ;

Hofmann, W ;

Horns, D ;

Ibarra, A ;

Kankanyan, R ;

Kestel, M ;

Kettler, J ;

Köhler, C ;

Kohnle, A ;

Konopelko, A ;

Kornmeyer, H ;

Kranich, D ;

Krawczynski, H ;

Lampeitl, H ;

Lindner, A ;

Lorenz, E ;

Lucarelli, F ;

Magnussen, N ;

Mang, O ;

Meyer, H ;

Mirzoyan, R ;

Moralejo, A ;

Padilla, L ;

Panter, M ;

Plaga, R ;

Plyasheshnikov, A ;

Prahl, J ;

Pühlhofer, G ;

Rauterberg, G ;

Röhring, A ;

Sahakian, V ;

Samorski, M ;

Schilling, M ;

Schmele, D ;

Schröder, F .

ASTROPHYSICAL JOURNAL, 2000, 539 (01) :317-324

[2] Limits on the TeV flux of diffuse gamma rays as measured with the HEGRA air shower array [J].

Aharonian, FA ;

Akhperjanian, AG ;

Barrio, JA ;

Bernlöhr, K ;

Bojahr, H ;

Bolz, O ;

Börst, H ;

Contreras, JL ;

Cortina, J ;

Denninghoff, S ;

Fonseca, V ;

Gebauer, HJ ;

Gonzalez, JC ;

Götting, N ;

Heinzelmann, G ;

Hermann, G ;

Heusler, A ;

Hofmann, W ;

Horns, D ;

Ibarra, S ;

Iserlohe, C ;

Jung, I ;

Kankanyan, R ;

Kestel, M ;

Kettler, J ;

Kohnle, A ;

Konopelko, A ;

Kornmayer, H ;

Kranich, D ;

Krawczynski, H ;

Lampeitl, H ;

Lopez, M ;

Lorenz, E ;

Lucarelli, F ;

Magnussen, N ;

Mang, O ;

Meyer, H ;

Mirzoyan, R ;

Moralejo, A ;

Oña, E ;

Padilla, L ;

Panter, M ;

Plaga, R ;

Plyasheshnikov, A ;

Prahl, J ;

Pühlhofer, G ;

Rauterberg, G ;

Rhode, W ;

Röhring, A ;

Rowell, GP .

ASTROPARTICLE PHYSICS, 2002, 17 (04) :459-475

[3] GAMMA-RAY OBSERVATIONS OF NGC-253 AND M82 WITH OSSE [J].

BHATTACHARYA, D ;

THE, LS ;

KURFESS, JD ;

CLAYTON, DD ;

GEHRELS, N ;

LEISING, MD ;

GRABELSKY, DA ;

JOHNSON, WN ;

JUNG, GV ;

KINZER, RL ;

PURCELL, WR ;

STRICKMAN, MS ;

ULMER, MP .

ASTROPHYSICAL JOURNAL, 1994, 437 (01) :173-178

[4] Diffuse gamma-ray emission from starburst galaxies and M31 [J].

Blom, JJ ;

Paglione, TAD ;

Carramiñana, A .

ASTROPHYSICAL JOURNAL, 1999, 516 (02) :744-749

[5]

Cappi M, 1999, ASTRON ASTROPHYS, V350, P777

[6] DISCOVERY OF A SYNCHROTRON-EMITTING HALO AROUND NGC-253 [J].

CARILLI, CL ;

HOLDAWAY, MA ;

HO, PTP ;

DEPREE, CG .

ASTROPHYSICAL JOURNAL, 1992, 399 (01) :L59-&

[7] EXTRA-GALACTIC DISTANCE SCALE .4. DISTANCES OF NEAREST GROUPS AND FIELD GALAXIES FROM SECONDARY INDICATORS [J].

DEVAUCOULEURS, G .

ASTROPHYSICAL JOURNAL, 1978, 224 (03) :710-717

[8] Design study of CANGAROO-III, stereoscopic imaging atmospheric Cherenkov telescopes for sub-TeV γ-ray detection [J].

Enomoto, R ;

Hara, S ;

Asahara, A ;

Bicknell, GV ;

Edwards, PG ;

Gunji, S ;

Hara, T ;

Jimbo, J ;

Kajino, F ;

Katagiri, H ;

Kataoka, J ;

Kawachi, A ;

Kifune, T ;

Kubo, H ;

Kushida, J ;

Matsubara, Y ;

Mizumoto, Y ;

Mori, M ;

Moriya, M ;

Muraishi, H ;

Muraki, Y ;

Naito, T ;

Nakase, T ;

Nishijima, K ;

Okumura, K ;

Patterson, JR ;

Sakurazawa, K ;

Swaby, DL ;

Takano, K ;

Tanimori, T ;

Tamura, T ;

Tsuchiya, K ;

Uruma, K ;

Yanagita, S ;

Yoshida, T ;

Yoshikoshi, T ;

Yuki, A .

ASTROPARTICLE PHYSICS, 2002, 16 (03) :235-244

[9] The acceleration of cosmic-ray protons in the supernova remnant RX J1713.7-3946 [J].

Enomoto, R ;

Tanimori, T ;

Naito, T ;

Yoshida, T ;

Yanagita, S ;

Mori, M ;

Edwards, PG ;

Asahara, A ;

Bicknell, GV ;

Gunji, S ;

Hara, S ;

Hara, T ;

Hayashi, S ;

Itoh, C ;

Kabuki, S ;

Kajino, F ;

Katagiri, H ;

Kataoka, J ;

Kawachi, A ;

Kifune, T ;

Kubo, H ;

Kushida, J ;

Maeda, S ;

Maeshiro, A ;

Matsubara, Y ;

Mizumoto, Y ;

Moriya, M ;

Muraishi, H ;

Muraki, Y ;

Nakase, T ;

Nishijima, K ;

Ohishi, M ;

Okumura, K ;

Patterson, JR ;

Sakurazawa, K ;

Suzuki, R ;

Swaby, DL ;

Takano, K ;

Takano, T ;

Tokanai, F ;

Tsuchiya, K ;

Tsunoo, H ;

Uruma, K ;

Watanabe, A ;

Yoshikoshi, T .

NATURE, 2002, 416 (6883) :823-826

[10]

Fegan DJ, 1996, SPACE SCI REV, V75, P137, DOI 10.1007/BF00195031

← 1 2 3 →