HAWC Search for High-mass Microquasars

A. Albert; R. Alfaro; C. Alvarez; J. R. Angeles Camacho; J. C. Arteaga-Velázquez; K. P. Arunbabu; D. Avila Rojas; H. A. Ayala Solares; V. Baghmanyan; E. Belmont-Moreno; S. Y. Benzvi; C. Brisbois; K. S. Caballero-Mora; T. Capistrán; A. Carramiñana; S. Casanova; U. Cotti; J. Cotzomi; E. De La Fuente; C. De León; R. Diaz Hernandez; J. C. Díaz-Vélez; B. L. Dingus; M. Durocher; M. A. Duvernois; R. W. Ellsworth; C. Espinoza; K. L. Fan; K. Fang; N. Fraija; A. Galván-Gámez; J. A. García-González; F. Garfias; M. M. González; J. A. Goodman; J. P. Harding; S. Hernandez; B. Hona; D. Huang; F. Hueyotl-Zahuantitla; P. Hüntemeyer; A. Iriarte; A. Jardin-Blicq; V. Joshi; D. Kieda; A. Lara; J. Lee; W. H. Lee; H. León Vargas; J. T. Linnemann; A. L. Longinotti; G. Luis-Raya; J. Lundeen; K. Malone; O. Martinez; J. Martínez-Castro; J. A. Matthews; P. Miranda-Romagnoli; J. A. Morales-Soto; E. Moreno; M. Mostafá; A. Nayerhoda; L. Nellen; M. Newbold; M. U. Nisa; R. Noriega-Papaqui; L. Olivera-Nieto; N. Omodei; A. Peisker; Y. Pérez Araujo; C. D. Rho; Y. J. Roh; D. Rosa-González; F. Salesa Greus; A. Sandoval; M. Schneider; J. Serna-Franco; A. J. Smith; R. W. Springer; K. Tollefson; I. Torres; R. Torres-Escobedo; R. Turner; F. Ureña-Mena; L. Villaseñor; I. J. Watson; T. Weisgarber; E. Willox; H. Zhou

doi:10.3847/2041-8213/abf35a

HAWC Search for High-mass Microquasars

A. Albert, R. Alfaro, C. Alvarez, J. R. Angeles Camacho, J. C. Arteaga-Velázquez, K. P. Arunbabu, D. Avila Rojas, H. A. Ayala Solares, V. Baghmanyan, E. Belmont-Moreno, S. Y. Benzvi, C. Brisbois, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, U. Cotti, J. Cotzomi, E. De La Fuente, C. De LeónR. Diaz Hernandez, J. C. Díaz-Vélez, B. L. Dingus, M. Durocher, M. A. Duvernois, R. W. Ellsworth, C. Espinoza, K. L. Fan, K. Fang, N. Fraija, A. Galván-Gámez, J. A. García-González, F. Garfias, M. M. González, J. A. Goodman, J. P. Harding, S. Hernandez, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, D. Kieda, A. Lara, J. Lee, W. H. Lee, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, J. Lundeen, K. Malone, O. Martinez, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Morales-Soto, E. Moreno, M. Mostafá, A. Nayerhoda, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, A. Peisker, Y. Pérez Araujo, C. D. Rho, Y. J. Roh, D. Rosa-González, F. Salesa Greus, A. Sandoval, M. Schneider, J. Serna-Franco, A. J. Smith, R. W. Springer, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, L. Villaseñor, I. J. Watson, T. Weisgarber, E. Willox, H. Zhou

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Abstract

Microquasars with high-mass companion stars are promising very high energy (VHE; 0.1-100 TeV) gamma-ray emitters, but their behaviors above 10 TeV are poorly known. Using the High Altitude Water Cerenkov (HAWC) observatory, we search for excess gamma-ray emission coincident with the positions of known high-mass microquasars (HMMQs). No significant emission is observed for LS 5039, Cyg X-1, Cyg X-3, and SS 433 with 1523 days of HAWC data. We set the most stringent limit above 10 TeV obtained to date on each individual source. Under the assumption that HMMQs produce gamma rays via a common mechanism, we have performed source-stacking searches, considering two different scenarios: (I) gamma-ray luminosity is a fraction γ of the microquasar jet luminosity, and (II) VHE gamma rays are produced by relativistic electrons upscattering the radiation field of the companion star in a magnetic field B. We obtain γ < 5.4 × 10-6 for scenario I, which tightly constrains models that suggest observable high-energy neutrino emission by HMMQs. In the case of scenario II, the nondetection of VHE gamma rays yields a strong magnetic field, which challenges synchrotron radiation as the dominant mechanism of the microquasar emission between 10 keV and 10 MeV.

Original language	English (US)
Article number	L4
Journal	Astrophysical Journal Letters
Volume	912
Issue number	1
DOIs	https://doi.org/10.3847/2041-8213/abf35a
State	Published - May 1 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/2041-8213/abf35a

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Albert, A., Alfaro, R., Alvarez, C., Angeles Camacho, J. R., Arteaga-Velázquez, J. C., Arunbabu, K. P., Avila Rojas, D., Ayala Solares, H. A., Baghmanyan, V., Belmont-Moreno, E., Benzvi, S. Y., Brisbois, C., Caballero-Mora, K. S., Capistrán, T., Carramiñana, A., Casanova, S., Cotti, U., Cotzomi, J., De La Fuente, E., ... Zhou, H. (2021). HAWC Search for High-mass Microquasars. Astrophysical Journal Letters, 912(1), Article L4. https://doi.org/10.3847/2041-8213/abf35a

@article{dfdd68c7b288492b87f63499818c2537,

title = "HAWC Search for High-mass Microquasars",

abstract = "Microquasars with high-mass companion stars are promising very high energy (VHE; 0.1-100 TeV) gamma-ray emitters, but their behaviors above 10 TeV are poorly known. Using the High Altitude Water Cerenkov (HAWC) observatory, we search for excess gamma-ray emission coincident with the positions of known high-mass microquasars (HMMQs). No significant emission is observed for LS 5039, Cyg X-1, Cyg X-3, and SS 433 with 1523 days of HAWC data. We set the most stringent limit above 10 TeV obtained to date on each individual source. Under the assumption that HMMQs produce gamma rays via a common mechanism, we have performed source-stacking searches, considering two different scenarios: (I) gamma-ray luminosity is a fraction γ of the microquasar jet luminosity, and (II) VHE gamma rays are produced by relativistic electrons upscattering the radiation field of the companion star in a magnetic field B. We obtain γ < 5.4 × 10-6 for scenario I, which tightly constrains models that suggest observable high-energy neutrino emission by HMMQs. In the case of scenario II, the nondetection of VHE gamma rays yields a strong magnetic field, which challenges synchrotron radiation as the dominant mechanism of the microquasar emission between 10 keV and 10 MeV.",

author = "A. Albert and R. Alfaro and C. Alvarez and {Angeles Camacho}, {J. R.} and Arteaga-Vel{\'a}zquez, {J. C.} and Arunbabu, {K. P.} and {Avila Rojas}, D. and {Ayala Solares}, {H. A.} and V. Baghmanyan and E. Belmont-Moreno and Benzvi, {S. Y.} and C. Brisbois and Caballero-Mora, {K. S.} and T. Capistr{\'a}n and A. Carrami{\~n}ana and S. Casanova and U. Cotti and J. Cotzomi and {De La Fuente}, E. and {De Le{\'o}n}, C. and {Diaz Hernandez}, R. and D{\'i}az-V{\'e}lez, {J. C.} and Dingus, {B. L.} and M. Durocher and Duvernois, {M. A.} and Ellsworth, {R. W.} and C. Espinoza and Fan, {K. L.} and K. Fang and N. Fraija and A. Galv{\'a}n-G{\'a}mez and Garc{\'i}a-Gonz{\'a}lez, {J. A.} and F. Garfias and Gonz{\'a}lez, {M. M.} and Goodman, {J. A.} and Harding, {J. P.} and S. Hernandez and B. Hona and D. Huang and F. Hueyotl-Zahuantitla and P. H{\"u}ntemeyer and A. Iriarte and A. Jardin-Blicq and V. Joshi and D. Kieda and A. Lara and J. Lee and Lee, {W. H.} and {Le{\'o}n Vargas}, H. and Linnemann, {J. T.} and Longinotti, {A. L.} and G. Luis-Raya and J. Lundeen and K. Malone and O. Martinez and J. Mart{\'i}nez-Castro and Matthews, {J. A.} and P. Miranda-Romagnoli and Morales-Soto, {J. A.} and E. Moreno and M. Mostaf{\'a} and A. Nayerhoda and L. Nellen and M. Newbold and Nisa, {M. U.} and R. Noriega-Papaqui and L. Olivera-Nieto and N. Omodei and A. Peisker and {P{\'e}rez Araujo}, Y. and Rho, {C. D.} and Roh, {Y. J.} and D. Rosa-Gonz{\'a}lez and {Salesa Greus}, F. and A. Sandoval and M. Schneider and J. Serna-Franco and Smith, {A. J.} and Springer, {R. W.} and K. Tollefson and I. Torres and R. Torres-Escobedo and R. Turner and F. Ure{\~n}a-Mena and L. Villase{\~n}or and Watson, {I. J.} and T. Weisgarber and E. Willox and H. Zhou",

year = "2021",

month = may,

day = "1",

doi = "10.3847/2041-8213/abf35a",

language = "English (US)",

volume = "912",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "1",

}

Albert, A, Alfaro, R, Alvarez, C, Angeles Camacho, JR, Arteaga-Velázquez, JC, Arunbabu, KP, Avila Rojas, D, Ayala Solares, HA, Baghmanyan, V, Belmont-Moreno, E, Benzvi, SY, Brisbois, C, Caballero-Mora, KS, Capistrán, T, Carramiñana, A, Casanova, S, Cotti, U, Cotzomi, J, De La Fuente, E, De León, C, Diaz Hernandez, R, Díaz-Vélez, JC, Dingus, BL, Durocher, M, Duvernois, MA, Ellsworth, RW, Espinoza, C, Fan, KL, Fang, K, Fraija, N, Galván-Gámez, A, García-González, JA, Garfias, F, González, MM, Goodman, JA, Harding, JP, Hernandez, S, Hona, B, Huang, D, Hueyotl-Zahuantitla, F, Hüntemeyer, P, Iriarte, A, Jardin-Blicq, A, Joshi, V, Kieda, D, Lara, A, Lee, J, Lee, WH, León Vargas, H, Linnemann, JT, Longinotti, AL, Luis-Raya, G, Lundeen, J, Malone, K, Martinez, O, Martínez-Castro, J, Matthews, JA, Miranda-Romagnoli, P, Morales-Soto, JA, Moreno, E, Mostafá, M, Nayerhoda, A, Nellen, L, Newbold, M, Nisa, MU, Noriega-Papaqui, R, Olivera-Nieto, L, Omodei, N, Peisker, A, Pérez Araujo, Y, Rho, CD, Roh, YJ, Rosa-González, D, Salesa Greus, F, Sandoval, A, Schneider, M, Serna-Franco, J, Smith, AJ, Springer, RW, Tollefson, K, Torres, I, Torres-Escobedo, R, Turner, R, Ureña-Mena, F, Villaseñor, L, Watson, IJ, Weisgarber, T, Willox, E & Zhou, H 2021, 'HAWC Search for High-mass Microquasars', Astrophysical Journal Letters, vol. 912, no. 1, L4. https://doi.org/10.3847/2041-8213/abf35a

TY - JOUR

T1 - HAWC Search for High-mass Microquasars

AU - Albert, A.

AU - Alfaro, R.

AU - Alvarez, C.

AU - Angeles Camacho, J. R.

AU - Arteaga-Velázquez, J. C.

AU - Arunbabu, K. P.

AU - Avila Rojas, D.

AU - Ayala Solares, H. A.

AU - Baghmanyan, V.

AU - Belmont-Moreno, E.

AU - Benzvi, S. Y.

AU - Brisbois, C.

AU - Caballero-Mora, K. S.

AU - Capistrán, T.

AU - Carramiñana, A.

AU - Casanova, S.

AU - Cotti, U.

AU - Cotzomi, J.

AU - De La Fuente, E.

AU - De León, C.

AU - Diaz Hernandez, R.

AU - Díaz-Vélez, J. C.

AU - Dingus, B. L.

AU - Durocher, M.

AU - Duvernois, M. A.

AU - Ellsworth, R. W.

AU - Espinoza, C.

AU - Fan, K. L.

AU - Fang, K.

AU - Fraija, N.

AU - Galván-Gámez, A.

AU - García-González, J. A.

AU - Garfias, F.

AU - González, M. M.

AU - Goodman, J. A.

AU - Harding, J. P.

AU - Hernandez, S.

AU - Hona, B.

AU - Huang, D.

AU - Hueyotl-Zahuantitla, F.

AU - Hüntemeyer, P.

AU - Iriarte, A.

AU - Jardin-Blicq, A.

AU - Joshi, V.

AU - Kieda, D.

AU - Lara, A.

AU - Lee, J.

AU - Lee, W. H.

AU - León Vargas, H.

AU - Linnemann, J. T.

AU - Longinotti, A. L.

AU - Luis-Raya, G.

AU - Lundeen, J.

AU - Malone, K.

AU - Martinez, O.

AU - Martínez-Castro, J.

AU - Matthews, J. A.

AU - Miranda-Romagnoli, P.

AU - Morales-Soto, J. A.

AU - Moreno, E.

AU - Mostafá, M.

AU - Nayerhoda, A.

AU - Nellen, L.

AU - Newbold, M.

AU - Nisa, M. U.

AU - Noriega-Papaqui, R.

AU - Olivera-Nieto, L.

AU - Omodei, N.

AU - Peisker, A.

AU - Pérez Araujo, Y.

AU - Rho, C. D.

AU - Roh, Y. J.

AU - Rosa-González, D.

AU - Salesa Greus, F.

AU - Sandoval, A.

AU - Schneider, M.

AU - Serna-Franco, J.

AU - Smith, A. J.

AU - Springer, R. W.

AU - Tollefson, K.

AU - Torres, I.

AU - Torres-Escobedo, R.

AU - Turner, R.

AU - Ureña-Mena, F.

AU - Villaseñor, L.

AU - Watson, I. J.

AU - Weisgarber, T.

AU - Willox, E.

AU - Zhou, H.

PY - 2021/5/1

Y1 - 2021/5/1

N2 - Microquasars with high-mass companion stars are promising very high energy (VHE; 0.1-100 TeV) gamma-ray emitters, but their behaviors above 10 TeV are poorly known. Using the High Altitude Water Cerenkov (HAWC) observatory, we search for excess gamma-ray emission coincident with the positions of known high-mass microquasars (HMMQs). No significant emission is observed for LS 5039, Cyg X-1, Cyg X-3, and SS 433 with 1523 days of HAWC data. We set the most stringent limit above 10 TeV obtained to date on each individual source. Under the assumption that HMMQs produce gamma rays via a common mechanism, we have performed source-stacking searches, considering two different scenarios: (I) gamma-ray luminosity is a fraction γ of the microquasar jet luminosity, and (II) VHE gamma rays are produced by relativistic electrons upscattering the radiation field of the companion star in a magnetic field B. We obtain γ < 5.4 × 10-6 for scenario I, which tightly constrains models that suggest observable high-energy neutrino emission by HMMQs. In the case of scenario II, the nondetection of VHE gamma rays yields a strong magnetic field, which challenges synchrotron radiation as the dominant mechanism of the microquasar emission between 10 keV and 10 MeV.

AB - Microquasars with high-mass companion stars are promising very high energy (VHE; 0.1-100 TeV) gamma-ray emitters, but their behaviors above 10 TeV are poorly known. Using the High Altitude Water Cerenkov (HAWC) observatory, we search for excess gamma-ray emission coincident with the positions of known high-mass microquasars (HMMQs). No significant emission is observed for LS 5039, Cyg X-1, Cyg X-3, and SS 433 with 1523 days of HAWC data. We set the most stringent limit above 10 TeV obtained to date on each individual source. Under the assumption that HMMQs produce gamma rays via a common mechanism, we have performed source-stacking searches, considering two different scenarios: (I) gamma-ray luminosity is a fraction γ of the microquasar jet luminosity, and (II) VHE gamma rays are produced by relativistic electrons upscattering the radiation field of the companion star in a magnetic field B. We obtain γ < 5.4 × 10-6 for scenario I, which tightly constrains models that suggest observable high-energy neutrino emission by HMMQs. In the case of scenario II, the nondetection of VHE gamma rays yields a strong magnetic field, which challenges synchrotron radiation as the dominant mechanism of the microquasar emission between 10 keV and 10 MeV.

UR - http://www.scopus.com/inward/record.url?scp=85106023745&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85106023745&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/abf35a

DO - 10.3847/2041-8213/abf35a

M3 - Article

AN - SCOPUS:85106023745

SN - 2041-8205

VL - 912

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L4

ER -

HAWC Search for High-mass Microquasars

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