VERITAS deep observations of the dwarf spheroidal galaxy Segue 1

E. Aliu; S. Archambault; T. Arlen; T. Aune; M. Beilicke; W. Benbow; A. Bouvier; S. M. Bradbury; J. H. Buckley; V. Bugaev; K. Byrum; A. Cannon; A. Cesarini; J. L. Christiansen; L. Ciupik; E. Collins-Hughes; M. P. Connolly; W. Cui; G. Decerprit; R. Dickherber; J. Dumm; M. Errando; A. Falcone; Q. Feng; F. Ferrer; J. P. Finley; G. Finnegan; L. Fortson; A. Furniss; N. Galante; D. Gall; S. Godambe; S. Griffin; J. Grube; G. Gyuk; D. Hanna; J. Holder; H. Huan; G. Hughes; T. B. Humensky; P. Kaaret; N. Karlsson; M. Kertzman; Y. Khassen; D. Kieda; H. Krawczynski; F. Krennrich; K. Lee; A. S. Madhavan; G. Maier; P. Majumdar; S. McArthur; A. McCann; P. Moriarty; R. Mukherjee; R. A. Ong; M. Orr; A. N. Otte; N. Park; J. S. Perkins; M. Pohl; H. Prokoph; J. Quinn; K. Ragan; L. C. Reyes; P. T. Reynolds; E. Roache; H. J. Rose; J. Ruppel; D. B. Saxon; M. Schroedter; G. H. Sembroski; G. D. Entürk; C. Skole; A. W. Smith; D. Staszak; I. Telezhinsky; G. Teić; M. Theiling; S. Thibadeau; K. Tsurusaki; A. Varlotta; V. V. Vassiliev; S. Vincent; M. Vivier; R. G. Wagner; S. P. Wakely; J. E. Ward; T. C. Weekes; A. Weinstein; T. Weisgarber; D. A. Williams; B. Zitzer

doi:10.1103/PhysRevD.85.062001

VERITAS deep observations of the dwarf spheroidal galaxy Segue 1

E. Aliu
, S. Archambault
, T. Arlen
, T. Aune
, M. Beilicke
, W. Benbow
, A. Bouvier
, S. M. Bradbury
, J. H. Buckley
, V. Bugaev
, K. Byrum
, A. Cannon
, A. Cesarini
, J. L. Christiansen
, L. Ciupik
, E. Collins-Hughes
, M. P. Connolly
, W. Cui
, G. Decerprit
, R. Dickherber

J. Dumm, M. Errando, A. Falcone, Q. Feng, F. Ferrer, J. P. Finley, G. Finnegan, L. Fortson, A. Furniss, N. Galante, D. Gall, S. Godambe, S. Griffin, J. Grube, G. Gyuk, D. Hanna, J. Holder, H. Huan, G. Hughes, T. B. Humensky, P. Kaaret, N. Karlsson, M. Kertzman, Y. Khassen, D. Kieda, H. Krawczynski, F. Krennrich, K. Lee, A. S. Madhavan, G. Maier, P. Majumdar, S. McArthur, A. McCann, P. Moriarty, R. Mukherjee, R. A. Ong, M. Orr, A. N. Otte, N. Park, J. S. Perkins, M. Pohl, H. Prokoph, J. Quinn, K. Ragan, L. C. Reyes, P. T. Reynolds, E. Roache, H. J. Rose, J. Ruppel, D. B. Saxon, M. Schroedter, G. H. Sembroski, G. D. Entürk, C. Skole, A. W. Smith, D. Staszak, I. Telezhinsky, G. Teić, M. Theiling, S. Thibadeau, K. Tsurusaki, A. Varlotta, V. V. Vassiliev, S. Vincent, M. Vivier, R. G. Wagner, S. P. Wakely, J. E. Ward, T. C. Weekes, A. Weinstein, T. Weisgarber, D. A. Williams, B. Zitzer

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University of California, Los Angeles
Santa Cruz Institute for Particle Physics
Washington University in St. Louis
Harvard & Smithsonian
University of Leeds
Argonne National Laboratory
University College Dublin
University of Galway
California Polytechnic State University, San Luis Obispo
Adler Planetarium
Purdue University
DESY
University of Minnesota
Methodology Center at Penn State
University of Utah
University of Iowa
The Bartol Research Institute
University of Chicago
Columbia University
DePauw University
Iowa State University
Galway-Mayo Institute of Technology
NASA Goddard Space Flight Center
University of Maryland Baltimore County
University of Potsdam
South Campus

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

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Abstract

The VERITAS array of Cherenkov telescopes has carried out a deep observational program on the nearby dwarf spheroidal galaxy Segue 1. We report on the results of nearly 48 hours of good quality selected data, taken between January 2010 and May 2011. No significant γ-ray emission is detected at the nominal position of Segue 1, and upper limits on the integrated flux are derived. According to recent studies, Segue 1 is the most dark matter-dominated dwarf spheroidal galaxy currently known. We derive stringent bounds on various annihilating and decaying dark matter particle models. The upper limits on the velocity-weighted annihilation cross-section are σv95 ^%CL10 ^-23cm3s ^-1, improving our limits from previous observations of dwarf spheroidal galaxies by at least a factor of 2 for dark matter particle masses m _χ300GeV. The lower limits on the decay lifetime are at the level of τ95 ^%CL1024s. Finally, we address the interpretation of the cosmic ray lepton anomalies measured by ATIC and PAMELA in terms of dark matter annihilation, and show that the VERITAS observations of Segue 1 disfavor such a scenario.

Original language	English
Article number	062001
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	85
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevD.85.062001
Publication status	Published - 5 Mar 2012
Externally published	Yes

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10.1103/PhysRevD.85.062001

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Aliu, E., Archambault, S., Arlen, T., Aune, T., Beilicke, M., Benbow, W., Bouvier, A., Bradbury, S. M., Buckley, J. H., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Christiansen, J. L., Ciupik, L., Collins-Hughes, E., Connolly, M. P., Cui, W., Decerprit, G., ... Zitzer, B. (2012). VERITAS deep observations of the dwarf spheroidal galaxy Segue 1. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(6), Article 062001. https://doi.org/10.1103/PhysRevD.85.062001

@article{4647e6557bc34d6299794784a4266067,

title = "VERITAS deep observations of the dwarf spheroidal galaxy Segue 1",

abstract = "The VERITAS array of Cherenkov telescopes has carried out a deep observational program on the nearby dwarf spheroidal galaxy Segue 1. We report on the results of nearly 48 hours of good quality selected data, taken between January 2010 and May 2011. No significant γ-ray emission is detected at the nominal position of Segue 1, and upper limits on the integrated flux are derived. According to recent studies, Segue 1 is the most dark matter-dominated dwarf spheroidal galaxy currently known. We derive stringent bounds on various annihilating and decaying dark matter particle models. The upper limits on the velocity-weighted annihilation cross-section are σv95 \%CL10 -23cm3s -1, improving our limits from previous observations of dwarf spheroidal galaxies by at least a factor of 2 for dark matter particle masses m χ300GeV. The lower limits on the decay lifetime are at the level of τ95 \%CL1024s. Finally, we address the interpretation of the cosmic ray lepton anomalies measured by ATIC and PAMELA in terms of dark matter annihilation, and show that the VERITAS observations of Segue 1 disfavor such a scenario.",

author = "E. Aliu and S. Archambault and T. Arlen and T. Aune and M. Beilicke and W. Benbow and A. Bouvier and Bradbury, \{S. M.\} and Buckley, \{J. H.\} and V. Bugaev and K. Byrum and A. Cannon and A. Cesarini and Christiansen, \{J. L.\} and L. Ciupik and E. Collins-Hughes and Connolly, \{M. P.\} and W. Cui and G. Decerprit and R. Dickherber and J. Dumm and M. Errando and A. Falcone and Q. Feng and F. Ferrer and Finley, \{J. P.\} and G. Finnegan and L. Fortson and A. Furniss and N. Galante and D. Gall and S. Godambe and S. Griffin and J. Grube and G. Gyuk and D. Hanna and J. Holder and H. Huan and G. Hughes and Humensky, \{T. B.\} and P. Kaaret and N. Karlsson and M. Kertzman and Y. Khassen and D. Kieda and H. Krawczynski and F. Krennrich and K. Lee and Madhavan, \{A. S.\} and G. Maier and P. Majumdar and S. McArthur and A. McCann and P. Moriarty and R. Mukherjee and Ong, \{R. A.\} and M. Orr and Otte, \{A. N.\} and N. Park and Perkins, \{J. S.\} and M. Pohl and H. Prokoph and J. Quinn and K. Ragan and Reyes, \{L. C.\} and Reynolds, \{P. T.\} and E. Roache and Rose, \{H. J.\} and J. Ruppel and Saxon, \{D. B.\} and M. Schroedter and Sembroski, \{G. H.\} and Ent{\"u}rk, \{G. D.\} and C. Skole and Smith, \{A. W.\} and D. Staszak and I. Telezhinsky and G. Tei{\'c} and M. Theiling and S. Thibadeau and K. Tsurusaki and A. Varlotta and Vassiliev, \{V. V.\} and S. Vincent and M. Vivier and Wagner, \{R. G.\} and Wakely, \{S. P.\} and Ward, \{J. E.\} and Weekes, \{T. C.\} and A. Weinstein and T. Weisgarber and Williams, \{D. A.\} and B. Zitzer",

year = "2012",

month = mar,

day = "5",

doi = "10.1103/PhysRevD.85.062001",

language = "English",

volume = "85",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "6",

}

Aliu, E, Archambault, S, Arlen, T, Aune, T, Beilicke, M, Benbow, W, Bouvier, A, Bradbury, SM, Buckley, JH, Bugaev, V, Byrum, K, Cannon, A, Cesarini, A, Christiansen, JL, Ciupik, L, Collins-Hughes, E, Connolly, MP, Cui, W, Decerprit, G, Dickherber, R, Dumm, J, Errando, M, Falcone, A, Feng, Q, Ferrer, F, Finley, JP, Finnegan, G, Fortson, L, Furniss, A, Galante, N, Gall, D, Godambe, S, Griffin, S, Grube, J, Gyuk, G, Hanna, D, Holder, J, Huan, H, Hughes, G, Humensky, TB, Kaaret, P, Karlsson, N, Kertzman, M, Khassen, Y, Kieda, D, Krawczynski, H, Krennrich, F, Lee, K, Madhavan, AS, Maier, G, Majumdar, P, McArthur, S, McCann, A, Moriarty, P, Mukherjee, R, Ong, RA, Orr, M, Otte, AN, Park, N, Perkins, JS, Pohl, M, Prokoph, H, Quinn, J, Ragan, K, Reyes, LC, Reynolds, PT, Roache, E, Rose, HJ, Ruppel, J, Saxon, DB, Schroedter, M, Sembroski, GH, Entürk, GD, Skole, C, Smith, AW, Staszak, D, Telezhinsky, I, Teić, G, Theiling, M, Thibadeau, S, Tsurusaki, K, Varlotta, A, Vassiliev, VV, Vincent, S, Vivier, M, Wagner, RG, Wakely, SP, Ward, JE, Weekes, TC, Weinstein, A, Weisgarber, T, Williams, DA & Zitzer, B 2012, 'VERITAS deep observations of the dwarf spheroidal galaxy Segue 1', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 85, no. 6, 062001. https://doi.org/10.1103/PhysRevD.85.062001

TY - JOUR

T1 - VERITAS deep observations of the dwarf spheroidal galaxy Segue 1

AU - Aliu, E.

AU - Archambault, S.

AU - Arlen, T.

AU - Aune, T.

AU - Beilicke, M.

AU - Benbow, W.

AU - Bouvier, A.

AU - Bradbury, S. M.

AU - Buckley, J. H.

AU - Bugaev, V.

AU - Byrum, K.

AU - Cannon, A.

AU - Cesarini, A.

AU - Christiansen, J. L.

AU - Ciupik, L.

AU - Collins-Hughes, E.

AU - Connolly, M. P.

AU - Cui, W.

AU - Decerprit, G.

AU - Dickherber, R.

AU - Dumm, J.

AU - Errando, M.

AU - Falcone, A.

AU - Feng, Q.

AU - Ferrer, F.

AU - Finley, J. P.

AU - Finnegan, G.

AU - Fortson, L.

AU - Furniss, A.

AU - Galante, N.

AU - Gall, D.

AU - Godambe, S.

AU - Griffin, S.

AU - Grube, J.

AU - Gyuk, G.

AU - Hanna, D.

AU - Holder, J.

AU - Huan, H.

AU - Hughes, G.

AU - Humensky, T. B.

AU - Kaaret, P.

AU - Karlsson, N.

AU - Kertzman, M.

AU - Khassen, Y.

AU - Kieda, D.

AU - Krawczynski, H.

AU - Krennrich, F.

AU - Lee, K.

AU - Madhavan, A. S.

AU - Maier, G.

AU - Majumdar, P.

AU - McArthur, S.

AU - McCann, A.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - Ong, R. A.

AU - Orr, M.

AU - Otte, A. N.

AU - Park, N.

AU - Perkins, J. S.

AU - Pohl, M.

AU - Prokoph, H.

AU - Quinn, J.

AU - Ragan, K.

AU - Reyes, L. C.

AU - Reynolds, P. T.

AU - Roache, E.

AU - Rose, H. J.

AU - Ruppel, J.

AU - Saxon, D. B.

AU - Schroedter, M.

AU - Sembroski, G. H.

AU - Entürk, G. D.

AU - Skole, C.

AU - Smith, A. W.

AU - Staszak, D.

AU - Telezhinsky, I.

AU - Teić, G.

AU - Theiling, M.

AU - Thibadeau, S.

AU - Tsurusaki, K.

AU - Varlotta, A.

AU - Vassiliev, V. V.

AU - Vincent, S.

AU - Vivier, M.

AU - Wagner, R. G.

AU - Wakely, S. P.

AU - Ward, J. E.

AU - Weekes, T. C.

AU - Weinstein, A.

AU - Weisgarber, T.

AU - Williams, D. A.

AU - Zitzer, B.

PY - 2012/3/5

Y1 - 2012/3/5

N2 - The VERITAS array of Cherenkov telescopes has carried out a deep observational program on the nearby dwarf spheroidal galaxy Segue 1. We report on the results of nearly 48 hours of good quality selected data, taken between January 2010 and May 2011. No significant γ-ray emission is detected at the nominal position of Segue 1, and upper limits on the integrated flux are derived. According to recent studies, Segue 1 is the most dark matter-dominated dwarf spheroidal galaxy currently known. We derive stringent bounds on various annihilating and decaying dark matter particle models. The upper limits on the velocity-weighted annihilation cross-section are σv95 %CL10 -23cm3s -1, improving our limits from previous observations of dwarf spheroidal galaxies by at least a factor of 2 for dark matter particle masses m χ300GeV. The lower limits on the decay lifetime are at the level of τ95 %CL1024s. Finally, we address the interpretation of the cosmic ray lepton anomalies measured by ATIC and PAMELA in terms of dark matter annihilation, and show that the VERITAS observations of Segue 1 disfavor such a scenario.

AB - The VERITAS array of Cherenkov telescopes has carried out a deep observational program on the nearby dwarf spheroidal galaxy Segue 1. We report on the results of nearly 48 hours of good quality selected data, taken between January 2010 and May 2011. No significant γ-ray emission is detected at the nominal position of Segue 1, and upper limits on the integrated flux are derived. According to recent studies, Segue 1 is the most dark matter-dominated dwarf spheroidal galaxy currently known. We derive stringent bounds on various annihilating and decaying dark matter particle models. The upper limits on the velocity-weighted annihilation cross-section are σv95 %CL10 -23cm3s -1, improving our limits from previous observations of dwarf spheroidal galaxies by at least a factor of 2 for dark matter particle masses m χ300GeV. The lower limits on the decay lifetime are at the level of τ95 %CL1024s. Finally, we address the interpretation of the cosmic ray lepton anomalies measured by ATIC and PAMELA in terms of dark matter annihilation, and show that the VERITAS observations of Segue 1 disfavor such a scenario.

UR - https://www.scopus.com/pages/publications/84863233727

U2 - 10.1103/PhysRevD.85.062001

DO - 10.1103/PhysRevD.85.062001

M3 - Article

SN - 1550-7998

VL - 85

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 6

M1 - 062001

ER -

VERITAS deep observations of the dwarf spheroidal galaxy Segue 1

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