Publication: Modeling nonthermal emission from stellar bow shocks (Research Note)
Loading...
Official URL
Full text at PDC
Publication Date
2016-04
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
EDP Sciencies
Abstract
Context. Runaway O- and early B-type stars passing through the interstellar medium at supersonic velocities and characterized by strong stellar winds may produce bow shocks that can serve as particle acceleration sites. Previous theoretical models predict the production of high-energy photons by nonthermal radiative processes, but their efficiency is still debated. Aims. We aim to test and explain the possibility of emission from the bow shocks formed by runaway stars traveling through the interstellar medium by using previous theoretical models. Methods. We applied our model to AE Aurigae, the first reported star with an X-ray detected bow shock, to BD+43 3654, in which the observations failed in detecting high-energy emission, and to the transition phase of a supergiant star in the late stages of its life. Results. From our analysis, we confirm that the X-ray emission from the bow shock produced by AE Aurigae can be explained by inverse Compton processes involving the infrared photons of the heated dust. We also predict low high-energy flux emission from the bow shock produced by BD+43 3654, and the possibility of high-energy emission from the bow shock formed by a supergiant star during the transition phase from blue to red supergiant. Conclusions. Bow shocks formed by different types of runaway stars are revealed as a new possible source of high-energy photons in our neighborhood.
Description
© ESO, 2016.
This work was supported by the Spanish Ministerio de Economía y Competitividad under grant AYA2011-29754-C03-03.
UCM subjects
Unesco subjects
Keywords
Citation
Adams, D. J. 1980, Bristol, Adam Hilger, Ltd. (Monographs on Astronomical Subjects, No. 6), 1980. 159 p.,
Acero, F., Lemoine-Goumard, M., Renaud, M., et al. 2015, A&A, 580, A74
Benaglia, P., Romero, G. E., Martí, J., Peri, C. S., & Araudo, A. T. 2010, A&A, 517, L10
Blaauw, A. 1961, Bull. Astron. Inst. Netherlands, 15, 265
Bosch-Ramon, V., & Khangulyan, D. 2009, International Journal of Modern Physics D, 18, 347
Comerón, F., & Pasquali, A. 2007, A&A, 467, L23
del Valle, M. V., & Romero, G. E. 2012, A&A, 543, A56
del Valle, M. V., & Romero, G. E. 2014, A&A, 563, A96
Fullerton, A. W., Massa, D. L., & Prinja, R. K. 2006, ApJ, 637, 1025
Gvaramadze, V. V., & Bomans, D. J. 2008, A&A, 485, L29
Gvaramadze, V. V., Kniazev, A. Y., Kroupa, P., & Oh, S. 2011, A&A, 535, A29
Gies, D. R. 1987, ApJS, 64, 545
Gies, D. R., & Bolton, C. T. 1986, ApJS, 61, 419
Ginzburg, V. L., & Syrovatskii, S. I. 1964, The Origin of Cosmic Rays, New York: Macmillan, 1964,
Hasinger, G., Altieri, B., Arnaud, M., et al. 2001, A&A, 365, L45
Hoogerwerf, R., de Bruijne, J. H. J., & de Zeeuw, P. T. 2000, ApJ, 544, L133
Howarth, I. D., Siebert, K. W., Hussain, G. A. J., & Prinja, R. K. 1997, MNRAS, 284, 265
Hubrig, S., Oskinova, L. M., & Schöller, M. 2011, Astronomische Nachrichten, 332, 147
Kelner, S. R., Aharonian, F. A., & Bugayov, V. V. 2006, Phys. Rev. D, 74, 034018
Kobulnicky, H. A., Gilbert, I. J., & Kiminki, D. C. 2010, ApJ, 710, 549
Longair, M. S. 2011, High Energy Astrophysics, by Malcolm S. Longair, Cambridge, UK: Cambridge University Press, 2011
López Santiago, J., Miceli, M., del Valle, M. V., et al. 2012, ApJ, 757, L6
Mackey, J., Mohamed, S., Neilson, H. R., Langer, N., & Meyer, D. M.-A. 2012, ApJ, 751, LL10
Maíz Apellániz, J., Walborn, N. R., Galué, H. Á., & Wei, L. H. 2004, ApJS, 151, 103
Markova, N., Puls, J., Repolust, T., & Markov, H. 2004, A&A, 413, 693
Mohamed, S., Mackey, J., & Langer, N. 2012, A&A, 541, AA1
Moffat, A. F. J., Marchenko, S. V., Seggewiss, W., et al. 1998, A&A, 331, 949
Moffat, A. F. J., Marchenko, S. V., Seggewiss, W., et al. 1999, A&A, 345, 321
Noriega Crespo, A., van Buren, D., & Dgani, R. 1997, AJ, 113, 780
Peri C.S., Benaglia, P., Brookes, D. P., Stevens, I. R., & Isequilla, N. L. 2012, A&A, 538, A108
Posson-Brown, J., Kashyap, V. L., Pease, D. O., & Drake, J. J. 2006, arXiv:astro-ph/0606387
Poveda, A., Ruiz, J., & Allen, C. 1967, Boletin de los Observatorios Tonantzintla y Tacubaya, 4, 86
Povich, M. S., Benjamin, R. A., Whitney, B. A., et al. 2008, ApJ, 689, 242
Repolust, T., Puls, J., & Herrero, A. 2004, A&A, 415, 349
Rybicki, G. B., & Lightman, A. P. 1979, New York, Wiley-Interscience, 1979. 393 p.
Terada, Y., Tashiro, M. S., Bamba, A., et al. 2012, PASJ, 64, 138
Tetzlaff, N., Neuhaeuser, R., & Hohle, M. M. 2010, VizieR Online Data Catalog, 741, 190
van Buren, D., & McCray, R. 1988, ApJ, 329, L93
van Buren, D. 1993, Massive Stars: Their Lives in the Interstellar Medium, 35, 315
van Buren, D., Noriega Crespo, A., & Dgani, R. 1995, AJ, 110, 2914
Vink, J. S., de Koter, A., & Lamers, H. J. G. L. M. 2001, A&A, 369, 574
Wilkin, F. P. 1996, ApJ, 459, L31