Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data

A. Drlica-Wagner; A. Albert; K. Bechtol; M. Wood; L. Strigari; M. Sánchez-Conde; L. Baldini; R. Essig; J. Cohen-Tanugi; B. Anderson; R. Bellazzini; E. D. Bloom; R. Caputo; C. Cecchi; E. Charles; J. Chiang; A. De Angelis; S. Funk; P. Fusco; F. Gargano; N. Giglietto; F. Giordano; S. Guiriec; M. Gustafsson; M. Kuss; F. Loparco; P. Lubrano; N. Mirabal; T. Mizuno; A. Morselli; T. Ohsugi; E. Orlando; M. Persic; S. Rainò; N. Sehgal; F. Spada; D. J. Suson; G. Zaharijas; S. Zimmer; T. Abbott; S. Allam; E. Balbinot; A. H. Bauer; A. Benoit-Lévy; R. A. Bernstein; G. M. Bernstein; E. Bertin; D. Brooks; E. Buckley-Geer; D. L. Burke; A. Carnero Rosell; F. J. Castander; R. Covarrubias; C. B. D'Andrea; L. N.Da Costa; D. L. Depoy; S. Desai; H. T. Diehl; C. E. Cunha; T. F. Eifler; J. Estrada; A. E. Evrard; A. Fausti Neto; E. Fernandez; D. A. Finley; B. Flaugher; J. Frieman; E. Gaztanaga; D. Gerdes; D. Gruen; R. A. Gruendl; G. Gutierrez; K. Honscheid; B. Jain; D. James; T. Jeltema; S. Kent; R. Kron; K. Kuehn; N. Kuropatkin; O. Lahav; T. S. Li; E. Luque; M. A.G. Maia; M. Makler; M. March; J. Marshall; P. Martini; K. W. Merritt; C. Miller; R. Miquel; J. Mohr; E. Neilsen; B. Nord; R. Ogando; J. Peoples; D. Petravick; A. Pieres; A. A. Plazas; A. Queiroz; A. K. Romer; A. Roodman; E. S. Rykoff; M. Sako; E. Sanchez; B. Santiago; V. Scarpine; M. Schubnell; I. Sevilla; R. C. Smith; M. Soares-Santos; F. Sobreira; E. Suchyta; M. E.C. Swanson; G. Tarle; J. Thaler; D. Thomas; D. Tucker; A. R. Walker; R. H. Wechsler; W. Wester; P. Williams; B. Yanny; J. Zuntz

doi:10.1088/2041-8205/809/1/L4

Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data

A. Drlica-Wagner
, A. Albert
, K. Bechtol
, M. Wood
, L. Strigari
, M. Sánchez-Conde
, L. Baldini
, R. Essig
, J. Cohen-Tanugi
, B. Anderson
, R. Bellazzini
, E. D. Bloom
, R. Caputo
, C. Cecchi
, E. Charles
, J. Chiang
, A. De Angelis
, S. Funk
, P. Fusco
, F. Gargano

N. Giglietto, F. Giordano, S. Guiriec, M. Gustafsson, M. Kuss, F. Loparco, P. Lubrano, N. Mirabal, T. Mizuno, A. Morselli, T. Ohsugi, E. Orlando, M. Persic, S. Rainò, N. Sehgal, F. Spada, D. J. Suson, G. Zaharijas, S. Zimmer, T. Abbott, S. Allam, E. Balbinot, A. H. Bauer, A. Benoit-Lévy, R. A. Bernstein, G. M. Bernstein, E. Bertin, D. Brooks, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, F. J. Castander, R. Covarrubias, C. B. D'Andrea, L. N.Da Costa, D. L. Depoy, S. Desai, H. T. Diehl, C. E. Cunha, T. F. Eifler, J. Estrada, A. E. Evrard, A. Fausti Neto, E. Fernandez, D. A. Finley, B. Flaugher, J. Frieman, E. Gaztanaga, D. Gerdes, D. Gruen, R. A. Gruendl, G. Gutierrez, K. Honscheid, B. Jain, D. James, T. Jeltema, S. Kent, R. Kron, K. Kuehn, N. Kuropatkin, O. Lahav, T. S. Li, E. Luque, M. A.G. Maia, M. Makler, M. March, J. Marshall, P. Martini, K. W. Merritt, C. Miller, R. Miquel, J. Mohr, E. Neilsen, B. Nord, R. Ogando, J. Peoples, D. Petravick, A. Pieres, A. A. Plazas, A. Queiroz, A. K. Romer, A. Roodman, E. S. Rykoff, M. Sako, E. Sanchez, B. Santiago, V. Scarpine, M. Schubnell, I. Sevilla, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E.C. Swanson, G. Tarle, J. Thaler, D. Thomas, D. Tucker, A. R. Walker, R. H. Wechsler, W. Wester, P. Williams, B. Yanny, J. Zuntz

Fermi National Accelerator Laboratory
Stanford University
The University of Chicago
Texas A&M University
Oskar Klein Centre
Stockholm University
University of Pisa
LUPM-UMR 5299, CNRS, Université Montpellier
National Institute for Nuclear Physics
University of California at Santa Cruz
University of Perugia
University of Udine
Polytechnic University of Bari
NASA Goddard Space Flight Center
University of Göttingen
Hiroshima University
Osservatorio Astronomico di Trieste
Purdue University Northwest
University of Trieste
University of Nova Gorica
National Optical Astronomy Observatory
Space Telescope Science Institute
University of Surrey
Laboratório Interinstitucional de e-Astronomia
CSIC
University College London
Carnegie Institution of Washington
University of Pennsylvania
Institut d'Astrophysique de Paris
SLAC National Accelerator Laboratory
Observatório Nacional
University of Illinois at Urbana-Champaign
University of Portsmouth
Excellence Cluster Universe
Ludwig Maximilian University of Munich
Jet Propulsion Laboratory, California Institute of Technology
University of Michigan, Ann Arbor
ICREA
Autonomous University of Barcelona
Max Planck Institute for Extraterrestrial Physics
Ohio State University
Australian Astronomical Observatory
Argonne National Laboratory
Universidade Federal do Rio Grande do Sul
Centro Brasileiro de Pesquisas Físicas
Brookhaven National Laboratory
University of Sussex
CIEMAT
University of Manchester

Research output: Contribution to journal › Article › peer-review

156 Scopus citations

Abstract

Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data. We found no significant excesses of gamma-ray emission. Under the assumption that the DES candidates are dSphs with DM halo properties similar to the known dSphs, we computed individual and combined limits on the velocity-averaged DM annihilation cross section for these new targets. If the estimated DM content of these dSph candidates is confirmed, they will constrain the annihilation cross section to lie below the thermal relic cross section for DM particles with masses annihilating via the or τ⁺τ^- channels.

Original language	English
Article number	L4
Journal	Astrophysical Journal Letters
Volume	809
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/809/1/L4
State	Published - Aug 10 2015

Keywords

Local Group
dark matter
galaxies: dwarf
gamma rays: galaxies

Access to Document

10.1088/2041-8205/809/1/L4

Cite this

Drlica-Wagner, A., Albert, A., Bechtol, K., Wood, M., Strigari, L., Sánchez-Conde, M., Baldini, L., Essig, R., Cohen-Tanugi, J., Anderson, B., Bellazzini, R., Bloom, E. D., Caputo, R., Cecchi, C., Charles, E., Chiang, J., Angelis, A. D., Funk, S., Fusco, P., ... Zuntz, J. (2015). Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data. Astrophysical Journal Letters, 809(1), Article L4. https://doi.org/10.1088/2041-8205/809/1/L4

@article{780d6b1d131f4b0faac211178d91661e,

title = "Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data",

abstract = "Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data. We found no significant excesses of gamma-ray emission. Under the assumption that the DES candidates are dSphs with DM halo properties similar to the known dSphs, we computed individual and combined limits on the velocity-averaged DM annihilation cross section for these new targets. If the estimated DM content of these dSph candidates is confirmed, they will constrain the annihilation cross section to lie below the thermal relic cross section for DM particles with masses annihilating via the or τ+τ- channels.",

keywords = "Local Group, dark matter, galaxies: dwarf, gamma rays: galaxies",

author = "A. Drlica-Wagner and A. Albert and K. Bechtol and M. Wood and L. Strigari and M. S{\'a}nchez-Conde and L. Baldini and R. Essig and J. Cohen-Tanugi and B. Anderson and R. Bellazzini and Bloom, \{E. D.\} and R. Caputo and C. Cecchi and E. Charles and J. Chiang and Angelis, \{A. De\} and S. Funk and P. Fusco and F. Gargano and N. Giglietto and F. Giordano and S. Guiriec and M. Gustafsson and M. Kuss and F. Loparco and P. Lubrano and N. Mirabal and T. Mizuno and A. Morselli and T. Ohsugi and E. Orlando and M. Persic and S. Rain{\`o} and N. Sehgal and F. Spada and Suson, \{D. J.\} and G. Zaharijas and S. Zimmer and T. Abbott and S. Allam and E. Balbinot and Bauer, \{A. H.\} and A. Benoit-L{\'e}vy and Bernstein, \{R. A.\} and Bernstein, \{G. M.\} and E. Bertin and D. Brooks and E. Buckley-Geer and Burke, \{D. L.\} and Rosell, \{A. Carnero\} and Castander, \{F. J.\} and R. Covarrubias and D'Andrea, \{C. B.\} and Costa, \{L. N.Da\} and Depoy, \{D. L.\} and S. Desai and Diehl, \{H. T.\} and Cunha, \{C. E.\} and Eifler, \{T. F.\} and J. Estrada and Evrard, \{A. E.\} and Neto, \{A. Fausti\} and E. Fernandez and Finley, \{D. A.\} and B. Flaugher and J. Frieman and E. Gaztanaga and D. Gerdes and D. Gruen and Gruendl, \{R. A.\} and G. Gutierrez and K. Honscheid and B. Jain and D. James and T. Jeltema and S. Kent and R. Kron and K. Kuehn and N. Kuropatkin and O. Lahav and Li, \{T. S.\} and E. Luque and Maia, \{M. A.G.\} and M. Makler and M. March and J. Marshall and P. Martini and Merritt, \{K. W.\} and C. Miller and R. Miquel and J. Mohr and E. Neilsen and B. Nord and R. Ogando and J. Peoples and D. Petravick and A. Pieres and Plazas, \{A. A.\} and A. Queiroz and Romer, \{A. K.\} and A. Roodman and Rykoff, \{E. S.\} and M. Sako and E. Sanchez and B. Santiago and V. Scarpine and M. Schubnell and I. Sevilla and Smith, \{R. C.\} and M. Soares-Santos and F. Sobreira and E. Suchyta and Swanson, \{M. E.C.\} and G. Tarle and J. Thaler and D. Thomas and D. Tucker and Walker, \{A. R.\} and Wechsler, \{R. H.\} and W. Wester and P. Williams and B. Yanny and J. Zuntz",

year = "2015",

month = aug,

day = "10",

doi = "10.1088/2041-8205/809/1/L4",

language = "English",

volume = "809",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

number = "1",

}

Drlica-Wagner, A, Albert, A, Bechtol, K, Wood, M, Strigari, L, Sánchez-Conde, M, Baldini, L, Essig, R, Cohen-Tanugi, J, Anderson, B, Bellazzini, R, Bloom, ED, Caputo, R, Cecchi, C, Charles, E, Chiang, J, Angelis, AD, Funk, S, Fusco, P, Gargano, F, Giglietto, N, Giordano, F, Guiriec, S, Gustafsson, M, Kuss, M, Loparco, F, Lubrano, P, Mirabal, N, Mizuno, T, Morselli, A, Ohsugi, T, Orlando, E, Persic, M, Rainò, S, Sehgal, N, Spada, F, Suson, DJ, Zaharijas, G, Zimmer, S, Abbott, T, Allam, S, Balbinot, E, Bauer, AH, Benoit-Lévy, A, Bernstein, RA, Bernstein, GM, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Rosell, AC, Castander, FJ, Covarrubias, R, D'Andrea, CB, Costa, LND, Depoy, DL, Desai, S, Diehl, HT, Cunha, CE, Eifler, TF, Estrada, J, Evrard, AE, Neto, AF, Fernandez, E, Finley, DA, Flaugher, B, Frieman, J, Gaztanaga, E, Gerdes, D, Gruen, D, Gruendl, RA, Gutierrez, G, Honscheid, K, Jain, B, James, D, Jeltema, T, Kent, S, Kron, R, Kuehn, K, Kuropatkin, N, Lahav, O, Li, TS, Luque, E, Maia, MAG, Makler, M, March, M, Marshall, J, Martini, P, Merritt, KW, Miller, C, Miquel, R, Mohr, J, Neilsen, E, Nord, B, Ogando, R, Peoples, J, Petravick, D, Pieres, A, Plazas, AA, Queiroz, A, Romer, AK, Roodman, A, Rykoff, ES, Sako, M, Sanchez, E, Santiago, B, Scarpine, V, Schubnell, M, Sevilla, I, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, MEC, Tarle, G, Thaler, J, Thomas, D, Tucker, D, Walker, AR, Wechsler, RH, Wester, W, Williams, P, Yanny, B & Zuntz, J 2015, 'Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data', Astrophysical Journal Letters, vol. 809, no. 1, L4. https://doi.org/10.1088/2041-8205/809/1/L4

TY - JOUR

T1 - Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data

AU - Drlica-Wagner, A.

AU - Albert, A.

AU - Bechtol, K.

AU - Wood, M.

AU - Strigari, L.

AU - Sánchez-Conde, M.

AU - Baldini, L.

AU - Essig, R.

AU - Cohen-Tanugi, J.

AU - Anderson, B.

AU - Bellazzini, R.

AU - Bloom, E. D.

AU - Caputo, R.

AU - Cecchi, C.

AU - Charles, E.

AU - Chiang, J.

AU - Angelis, A. De

AU - Funk, S.

AU - Fusco, P.

AU - Gargano, F.

AU - Giglietto, N.

AU - Giordano, F.

AU - Guiriec, S.

AU - Gustafsson, M.

AU - Kuss, M.

AU - Loparco, F.

AU - Lubrano, P.

AU - Mirabal, N.

AU - Mizuno, T.

AU - Morselli, A.

AU - Ohsugi, T.

AU - Orlando, E.

AU - Persic, M.

AU - Rainò, S.

AU - Sehgal, N.

AU - Spada, F.

AU - Suson, D. J.

AU - Zaharijas, G.

AU - Zimmer, S.

AU - Abbott, T.

AU - Allam, S.

AU - Balbinot, E.

AU - Bauer, A. H.

AU - Benoit-Lévy, A.

AU - Bernstein, R. A.

AU - Bernstein, G. M.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Burke, D. L.

AU - Rosell, A. Carnero

AU - Castander, F. J.

AU - Covarrubias, R.

AU - D'Andrea, C. B.

AU - Costa, L. N.Da

AU - Depoy, D. L.

AU - Desai, S.

AU - Diehl, H. T.

AU - Cunha, C. E.

AU - Eifler, T. F.

AU - Estrada, J.

AU - Evrard, A. E.

AU - Neto, A. Fausti

AU - Fernandez, E.

AU - Finley, D. A.

AU - Flaugher, B.

AU - Frieman, J.

AU - Gaztanaga, E.

AU - Gerdes, D.

AU - Gruen, D.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - Honscheid, K.

AU - Jain, B.

AU - James, D.

AU - Jeltema, T.

AU - Kent, S.

AU - Kron, R.

AU - Kuehn, K.

AU - Kuropatkin, N.

AU - Lahav, O.

AU - Li, T. S.

AU - Luque, E.

AU - Maia, M. A.G.

AU - Makler, M.

AU - March, M.

AU - Marshall, J.

AU - Martini, P.

AU - Merritt, K. W.

AU - Miller, C.

AU - Miquel, R.

AU - Mohr, J.

AU - Neilsen, E.

AU - Nord, B.

AU - Ogando, R.

AU - Peoples, J.

AU - Petravick, D.

AU - Pieres, A.

AU - Plazas, A. A.

AU - Queiroz, A.

AU - Romer, A. K.

AU - Roodman, A.

AU - Rykoff, E. S.

AU - Sako, M.

AU - Sanchez, E.

AU - Santiago, B.

AU - Scarpine, V.

AU - Schubnell, M.

AU - Sevilla, I.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Swanson, M. E.C.

AU - Tarle, G.

AU - Thaler, J.

AU - Thomas, D.

AU - Tucker, D.

AU - Walker, A. R.

AU - Wechsler, R. H.

AU - Wester, W.

AU - Williams, P.

AU - Yanny, B.

AU - Zuntz, J.

PY - 2015/8/10

Y1 - 2015/8/10

N2 - Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data. We found no significant excesses of gamma-ray emission. Under the assumption that the DES candidates are dSphs with DM halo properties similar to the known dSphs, we computed individual and combined limits on the velocity-averaged DM annihilation cross section for these new targets. If the estimated DM content of these dSph candidates is confirmed, they will constrain the annihilation cross section to lie below the thermal relic cross section for DM particles with masses annihilating via the or τ+τ- channels.

AB - Due to their proximity, high dark-matter (DM) content, and apparent absence of non-thermal processes, Milky Way dwarf spheroidal satellite galaxies (dSphs) are excellent targets for the indirect detection of DM. Recently, eight new dSph candidates were discovered using the first year of data from the Dark Energy Survey (DES). We searched for gamma-ray emission coincident with the positions of these new objects in six years of Fermi Large Area Telescope data. We found no significant excesses of gamma-ray emission. Under the assumption that the DES candidates are dSphs with DM halo properties similar to the known dSphs, we computed individual and combined limits on the velocity-averaged DM annihilation cross section for these new targets. If the estimated DM content of these dSph candidates is confirmed, they will constrain the annihilation cross section to lie below the thermal relic cross section for DM particles with masses annihilating via the or τ+τ- channels.

KW - Local Group

KW - dark matter

KW - galaxies: dwarf

KW - gamma rays: galaxies

UR - https://www.scopus.com/pages/publications/84939148773

U2 - 10.1088/2041-8205/809/1/L4

DO - 10.1088/2041-8205/809/1/L4

M3 - Article

AN - SCOPUS:84939148773

SN - 2041-8205

VL - 809

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L4

ER -

Search for gamma-ray emission from des dwarf spheroidal galaxy candidates with Fermi-LAT data

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Keywords

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