Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope

E. Aliu; H. Anderhub; L. A. Antonelli; P. Antoranz; M. Backes; C. Baixeras; S. Balestra; J. A. Barrio; H. Bartko; D. Bastieri; J. Becerra Gonzlez; J. K. Becker; W. Bednarek; K. Berger; E. Bernardini; A. Biland; R. K. Bock; G. Bonnoli; P. Bordas; D. Borla Tridon; V. Bosch-Ramon; D. Bose; T. Bretz; I. Britvitch; M. Camara; E. Carmona; S. Commichau; J. L. Contreras; J. Cortina; M. T. Costado; S. Covino; V. Curtef; F. Dazzi; A. De Angelis; E. De Cea Del Pozo; R. De Los Reyes; B. De Lotto; M. De Maria; F. De Sabata; C. Delgado Mendez; A. Dominguez; D. Dorner; M. Doro; D. Elsaesser; M. Errando; D. Ferenc; E. Fernndez; R. Firpo; M. V. Fonseca; L. Font; N. Galante; R. J.García López; M. Garczarczyk; M. Gaug; F. Goebel; D. Hadasch; M. Hayashida; A. Herrero; D. Höhne-Mönch; J. Hose; C. C. Hsu; S. Huber; T. Jogler; D. Kranich; A. La Barbera; A. Laille; E. Leonardo; E. Lindfors; S. Lombardi; F. Longo; M. López; E. Lorenz; P. Majumdar; G. Maneva; N. Mankuzhiyil; K. Mannheim; L. Maraschi; M. Mariotti; M. Martínez; D. Mazin; M. Meucci; M. Meyer; J. M. Miranda; R. Mirzoyan; J. Moldón; M. Moles; A. Moralejo; D. Nieto; K. Nilsson; J. Ninkovic; N. Otte; I. Oya; R. Paoletti; J. M. Paredes; M. Pasanen; D. Pascoli; F. Pauss; R. G. Pegna; M. A. Perez-Torres; M. Persic

doi:https://doi.org/10.1088/0004-637X/697/2/1299

Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope

E. Aliu, H. Anderhub, L. A. Antonelli, P. Antoranz, M. Backes, C. Baixeras, S. Balestra, J. A. Barrio, H. Bartko, D. Bastieri, J. Becerra Gonzlez, J. K. Becker, W. Bednarek, K. Berger, E. Bernardini, A. Biland, R. K. Bock, G. Bonnoli, P. Bordas, D. Borla TridonV. Bosch-Ramon, D. Bose, T. Bretz, I. Britvitch, M. Camara, E. Carmona, S. Commichau, J. L. Contreras, J. Cortina, M. T. Costado, S. Covino, V. Curtef, F. Dazzi, A. De Angelis, E. De Cea Del Pozo, R. De Los Reyes, B. De Lotto, M. De Maria, F. De Sabata, C. Delgado Mendez, A. Dominguez, D. Dorner, M. Doro, D. Elsaesser, M. Errando, D. Ferenc, E. Fernndez, R. Firpo, M. V. Fonseca, L. Font, N. Galante, R. J.García López, M. Garczarczyk, M. Gaug, F. Goebel, D. Hadasch, M. Hayashida, A. Herrero, D. Höhne-Mönch, J. Hose, C. C. Hsu, S. Huber, T. Jogler, D. Kranich, A. La Barbera, A. Laille, E. Leonardo, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, G. Maneva, N. Mankuzhiyil, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, M. Meucci, M. Meyer, J. M. Miranda, R. Mirzoyan, J. Moldón, M. Moles, A. Moralejo, D. Nieto, K. Nilsson, J. Ninkovic, N. Otte, I. Oya, R. Paoletti, J. M. Paredes, M. Pasanen, D. Pascoli, F. Pauss, R. G. Pegna, M. A. Perez-Torres, M. Persic

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Abstract

We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17m MAGIC telescope during 15.5 hr between March and May 2008. No significant γ-ray emission was found. We derived upper limits of the order of 10-12 ph cm-2 s-1 on the integral flux above 100 GeV, which we compare with predictions from several of the established neutralino benchmark models in the mSUGRA parameter space. The neutralino annihilation spectra are defined after including the recently quantified contribution of internal bremsstrahlung from the virtual sparticles that mediate the annihilation. Flux boost factors of three orders of magnitude are required even in the most optimistic scenario to match our upper limits. However, uncertainties in the dark matter intrinsic and extrinsic properties (e.g., presence of substructures, Sommerfeld effect) may significantly reduce this gap. © 2009. The American Astronomical Society.

Original language	English
Pages (from-to)	1299-1304
Journal	Astrophysical Journal
Volume	697
DOIs	https://doi.org/10.1088/0004-637X/697/2/1299
Publication status	Published - 1 Jan 2009

Keywords

Dark matter
Galaxies: dwarf
Gamma rays: observations

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https://doi.org/10.1088/0004-637X/697/2/1299

Cite this

Aliu, E., Anderhub, H., Antonelli, L. A., Antoranz, P., Backes, M., Baixeras, C., Balestra, S., Barrio, J. A., Bartko, H., Bastieri, D., Gonzlez, J. B., Becker, J. K., Bednarek, W., Berger, K., Bernardini, E., Biland, A., Bock, R. K., Bonnoli, G., Bordas, P., ... Persic, M. (2009). Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope. Astrophysical Journal, 697, 1299-1304. https://doi.org/10.1088/0004-637X/697/2/1299

@article{9613fbb41cc44e7b9a7fb1021b0009c0,

title = "Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope",

abstract = "We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17m MAGIC telescope during 15.5 hr between March and May 2008. No significant γ-ray emission was found. We derived upper limits of the order of 10-12 ph cm-2 s-1 on the integral flux above 100 GeV, which we compare with predictions from several of the established neutralino benchmark models in the mSUGRA parameter space. The neutralino annihilation spectra are defined after including the recently quantified contribution of internal bremsstrahlung from the virtual sparticles that mediate the annihilation. Flux boost factors of three orders of magnitude are required even in the most optimistic scenario to match our upper limits. However, uncertainties in the dark matter intrinsic and extrinsic properties (e.g., presence of substructures, Sommerfeld effect) may significantly reduce this gap. {\textcopyright} 2009. The American Astronomical Society.",

keywords = "Dark matter, Galaxies: dwarf, Gamma rays: observations",

author = "E. Aliu and H. Anderhub and Antonelli, {L. A.} and P. Antoranz and M. Backes and C. Baixeras and S. Balestra and Barrio, {J. A.} and H. Bartko and D. Bastieri and Gonzlez, {J. Becerra} and Becker, {J. K.} and W. Bednarek and K. Berger and E. Bernardini and A. Biland and Bock, {R. K.} and G. Bonnoli and P. Bordas and Tridon, {D. Borla} and V. Bosch-Ramon and D. Bose and T. Bretz and I. Britvitch and M. Camara and E. Carmona and S. Commichau and Contreras, {J. L.} and J. Cortina and Costado, {M. T.} and S. Covino and V. Curtef and F. Dazzi and {De Angelis}, A. and {De Cea Del Pozo}, E. and {De Los Reyes}, R. and {De Lotto}, B. and {De Maria}, M. and {De Sabata}, F. and Mendez, {C. Delgado} and A. Dominguez and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and E. Fernndez and R. Firpo and Fonseca, {M. V.} and L. Font and N. Galante and L{\'o}pez, {R. J.Garc{\'i}a} and M. Garczarczyk and M. Gaug and F. Goebel and D. Hadasch and M. Hayashida and A. Herrero and D. H{\"o}hne-M{\"o}nch and J. Hose and Hsu, {C. C.} and S. Huber and T. Jogler and D. Kranich and Barbera, {A. La} and A. Laille and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. L{\'o}pez and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Mart{\'i}nez and D. Mazin and M. Meucci and M. Meyer and Miranda, {J. M.} and R. Mirzoyan and J. Mold{\'o}n and M. Moles and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovic and N. Otte and I. Oya and R. Paoletti and Paredes, {J. M.} and M. Pasanen and D. Pascoli and F. Pauss and Pegna, {R. G.} and Perez-Torres, {M. A.} and M. Persic",

year = "2009",

month = jan,

day = "1",

doi = "https://doi.org/10.1088/0004-637X/697/2/1299",

language = "English",

volume = "697",

pages = "1299--1304",

journal = "Astrophysical Journal",

issn = "0004-637X",

}

Aliu, E, Anderhub, H, Antonelli, LA, Antoranz, P, Backes, M, Baixeras, C, Balestra, S, Barrio, JA, Bartko, H, Bastieri, D, Gonzlez, JB, Becker, JK, Bednarek, W, Berger, K, Bernardini, E, Biland, A, Bock, RK, Bonnoli, G, Bordas, P, Tridon, DB, Bosch-Ramon, V, Bose, D, Bretz, T, Britvitch, I, Camara, M, Carmona, E, Commichau, S, Contreras, JL, Cortina, J, Costado, MT, Covino, S, Curtef, V, Dazzi, F, De Angelis, A, De Cea Del Pozo, E, De Los Reyes, R, De Lotto, B, De Maria, M, De Sabata, F, Mendez, CD, Dominguez, A, Dorner, D, Doro, M, Elsaesser, D, Errando, M, Ferenc, D, Fernndez, E, Firpo, R, Fonseca, MV, Font, L, Galante, N, López, RJG, Garczarczyk, M, Gaug, M, Goebel, F, Hadasch, D, Hayashida, M, Herrero, A, Höhne-Mönch, D, Hose, J, Hsu, CC, Huber, S, Jogler, T, Kranich, D, Barbera, AL, Laille, A, Leonardo, E, Lindfors, E, Lombardi, S, Longo, F, López, M, Lorenz, E, Majumdar, P, Maneva, G, Mankuzhiyil, N, Mannheim, K, Maraschi, L, Mariotti, M, Martínez, M, Mazin, D, Meucci, M, Meyer, M, Miranda, JM, Mirzoyan, R, Moldón, J, Moles, M, Moralejo, A, Nieto, D, Nilsson, K, Ninkovic, J, Otte, N, Oya, I, Paoletti, R, Paredes, JM, Pasanen, M, Pascoli, D, Pauss, F, Pegna, RG, Perez-Torres, MA & Persic, M 2009, 'Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope', Astrophysical Journal, vol. 697, pp. 1299-1304. https://doi.org/10.1088/0004-637X/697/2/1299

TY - JOUR

T1 - Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope

AU - Aliu, E.

AU - Anderhub, H.

AU - Antonelli, L. A.

AU - Antoranz, P.

AU - Backes, M.

AU - Baixeras, C.

AU - Balestra, S.

AU - Barrio, J. A.

AU - Bartko, H.

AU - Bastieri, D.

AU - Gonzlez, J. Becerra

AU - Becker, J. K.

AU - Bednarek, W.

AU - Berger, K.

AU - Bernardini, E.

AU - Biland, A.

AU - Bock, R. K.

AU - Bonnoli, G.

AU - Bordas, P.

AU - Tridon, D. Borla

AU - Bosch-Ramon, V.

AU - Bose, D.

AU - Bretz, T.

AU - Britvitch, I.

AU - Camara, M.

AU - Carmona, E.

AU - Commichau, S.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Costado, M. T.

AU - Covino, S.

AU - Curtef, V.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Cea Del Pozo, E.

AU - De Los Reyes, R.

AU - De Lotto, B.

AU - De Maria, M.

AU - De Sabata, F.

AU - Mendez, C. Delgado

AU - Dominguez, A.

AU - Dorner, D.

AU - Doro, M.

AU - Elsaesser, D.

AU - Errando, M.

AU - Ferenc, D.

AU - Fernndez, E.

AU - Firpo, R.

AU - Fonseca, M. V.

AU - Font, L.

AU - Galante, N.

AU - López, R. J.García

AU - Garczarczyk, M.

AU - Gaug, M.

AU - Goebel, F.

AU - Hadasch, D.

AU - Hayashida, M.

AU - Herrero, A.

AU - Höhne-Mönch, D.

AU - Hose, J.

AU - Hsu, C. C.

AU - Huber, S.

AU - Jogler, T.

AU - Kranich, D.

AU - Barbera, A. La

AU - Laille, A.

AU - Leonardo, E.

AU - Lindfors, E.

AU - Lombardi, S.

AU - Longo, F.

AU - López, M.

AU - Lorenz, E.

AU - Majumdar, P.

AU - Maneva, G.

AU - Mankuzhiyil, N.

AU - Mannheim, K.

AU - Maraschi, L.

AU - Mariotti, M.

AU - Martínez, M.

AU - Mazin, D.

AU - Meucci, M.

AU - Meyer, M.

AU - Miranda, J. M.

AU - Mirzoyan, R.

AU - Moldón, J.

AU - Moles, M.

AU - Moralejo, A.

AU - Nieto, D.

AU - Nilsson, K.

AU - Ninkovic, J.

AU - Otte, N.

AU - Oya, I.

AU - Paoletti, R.

AU - Paredes, J. M.

AU - Pasanen, M.

AU - Pascoli, D.

AU - Pauss, F.

AU - Pegna, R. G.

AU - Perez-Torres, M. A.

AU - Persic, M.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17m MAGIC telescope during 15.5 hr between March and May 2008. No significant γ-ray emission was found. We derived upper limits of the order of 10-12 ph cm-2 s-1 on the integral flux above 100 GeV, which we compare with predictions from several of the established neutralino benchmark models in the mSUGRA parameter space. The neutralino annihilation spectra are defined after including the recently quantified contribution of internal bremsstrahlung from the virtual sparticles that mediate the annihilation. Flux boost factors of three orders of magnitude are required even in the most optimistic scenario to match our upper limits. However, uncertainties in the dark matter intrinsic and extrinsic properties (e.g., presence of substructures, Sommerfeld effect) may significantly reduce this gap. © 2009. The American Astronomical Society.

AB - We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17m MAGIC telescope during 15.5 hr between March and May 2008. No significant γ-ray emission was found. We derived upper limits of the order of 10-12 ph cm-2 s-1 on the integral flux above 100 GeV, which we compare with predictions from several of the established neutralino benchmark models in the mSUGRA parameter space. The neutralino annihilation spectra are defined after including the recently quantified contribution of internal bremsstrahlung from the virtual sparticles that mediate the annihilation. Flux boost factors of three orders of magnitude are required even in the most optimistic scenario to match our upper limits. However, uncertainties in the dark matter intrinsic and extrinsic properties (e.g., presence of substructures, Sommerfeld effect) may significantly reduce this gap. © 2009. The American Astronomical Society.

KW - Dark matter

KW - Galaxies: dwarf

KW - Gamma rays: observations

U2 - https://doi.org/10.1088/0004-637X/697/2/1299

DO - https://doi.org/10.1088/0004-637X/697/2/1299

M3 - Article

SN - 0004-637X

VL - 697

SP - 1299

EP - 1304

JO - Astrophysical Journal

JF - Astrophysical Journal

ER -

Upper limits on the vhe gamma-ray emission from the willman 1 satellite galaxy with the magic telescope

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Keywords

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