Indirect search for dark matter with a combined analysis of dwarf spheroidal galaxies from VERITAS

被引：0

作者：

Acharyya, A.

Adams, C. B. ^{[2
]}

Bangale, P. ^{[3
]}

Bartkoske, J. T. ^{[4
]}

Batista, P. ^{[5
]}

Benbow, W. ^{[6
]}

Christiansen, J. L. ^{[7
]}

Chromey, A. J. ^{[6
]}

Duerr, A. ^{[4
]}

Errando, M. ^{[8
]}

Falcone, A. ^{[9
]}

Feng, Q. ^{[4
]}

Foote, G. M. ^{[3
]}

Fortson, L. ^{[10
]}

Furniss, A. ^{[11
]}

Hanlon, W. ^{[6
]}

Hanna, D. ^{[12
]}

Hervet, O. ^{[13
,14
]}

Hinrichs, C. E. ^{[6
,15
]}

Holder, J.

Humensky, T. B. ^{[1
,16
,17
]}

Jin, W. ^{[18
]}

Johnson, M. N. ^{[13
,14
]}

Kaaret, P. ^{[19
]}

Kertzman, M. ^{[20
]}

Kieda, D.

Kleiner, T. K.

Korzoun, N.

Kumar, S. ^{[21
]}

Lang, M. J. ^{[22
]}

Lundy, M. ^{[12
]}

Maier, G.

Mcgrath, C. E. ^{[23
]}

Millard, M. J. ^{[19
]}

Mooney, C. L.

Moriarty, P. ^{[22
]}

Mukherjee, R. ^{[24
]}

Ning, W. ^{[18
]}

Brien, S. o ' ^{[25
,26
]}

Ong, R. A. ^{[18
]}

Park, N. ^{[27
]}

Pohl, M. ^{[5
,28
]}

Pueschel, E. ^{[29
]}

Quinn, J. ^{[23
]}

Rabinowitz, P. L.

Ragan, K. ^{[12
]}

Reynolds, P. T. ^{[30
]}

Ribeiro, D. ^{[10
]}

Roache, E.

Ryan, J. L. ^{[18
]}

机构：

[1] Univ Southern Denmark, CP3 Origins, Campusvej 55, Odense M, Denmark

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

[3] Univ Delaware, Bartol Res Inst, Dept Phys & Astron, Newark, DE 19716 USA

[4] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[5] DESY, Platanenallee 6, D-15738 Zeuthen, Germany

[6] Ctr Astrophys Harvard & Smithsonian, Cambridge, MA 02138 USA

[7] Calif Polytech State Univ San Luis Obispo, Phys Dept, San Luis Obispo, CA 94307 USA

[8] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[9] Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

[10] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[11] Calif State Univ East Bay, Dept Phys, Hayward, CA 94542 USA

[12] McGill Univ, Dept Phys, Quebec City, PQ H3A 2T8, Canada

[13] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[14] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA

[15] Dartmouth Coll, Dept Phys & Astron, 6127 Wilder Lab, Hannover, NH 03755, Germany

[16] Univ Maryland, Dept Phys, College Pk, MD USA

[17] NASA GSFC, Greenbelt, MD 20771 USA

[18] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[19] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[20] Depauw Univ, Sociol, Greencastle, IN 46135 USA

[21] Univ Maryland, Dept Phys, College Pk, MD USA

[22] Natl Univ Ireland Galway, Dept Microbiol, Univ Rd, Galway H91 TK33, Ireland

[23] Univ Coll Dublin, Sch Phys, Dublin, Ireland

[24] COLUMBIA UNIV BARNARD COLL, DEPT PHYS, NEW YORK, NY 10027 USA

[25] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 2S8, Canada

[26] Queens Univ, Arthur B McDonald Canadian Astroparticle Phys Res, 64 Bader Lane, Kingston, ON K7L 3N6, Canada

[27] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada

[28] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany

[29] Ruhr Univ Bochum, CES, D-44780 Bochum, Germany

[30] Munster Technol Univ, Dept Biol Sci, Cork T12 P928, Ireland

[31] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[32] Seoul Natl Univ, SNU Astron Res Ctr, Dept Phys & Astron, Seoul 08826, South Korea

[33] Indiana Univ, Purdue Univ Indianapolis, Dept Psychol, Indianapolis, IN 46202 USA

[34] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

来源：

PHYSICAL REVIEW D | 2024年 / 110卷 / 06期

基金：

美国国家科学基金会; 新加坡国家研究基金会; 加拿大自然科学与工程研究理事会;

关键词：

ANNIHILATION; PROFILES; SATELLITES; LIMITS;

D O I：

10.1103/PhysRevD.110.063034

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Understanding the nature and identity of dark matter is a key goal in the physics community. In the case that TeV-scale dark matter particles decay or annihilate into Standard Model particles, very-high-energy (VHE) gamma rays (greater than 100 GeV) will be present in the final state. The Very Energetic Radiation Imaging Telescope Array System (VERITAS) is an imaging atmospheric Cherenkov telescope array that can indirectly detect VHE gamma rays in an energy range of 100 GeV to > 30 TeV. Dwarf spheroidal galaxies (dSphs) are ideal candidates in the search for dark matter due to their high dark matter content, high mass-to-light ratios, and their low gamma-ray fluxes from astrophysical processes. This study uses a legacy dataset of 638 h collected on 17 dSphs, built over 11 years with an observing strategy optimized according to the dark matter content of the targets. The study addresses a broad dark matter particle mass range, extending from 200 GeV to 30 PeV. In the absence of a detection, we set the upper limits on the dark matter velocity-weighted annihilation cross section.

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页数：14

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