Abstract
For the first time a quasi-simultaneous multi-wavelength campaign has been performed on an Anomalous X-ray Pulsar from the radio to the hard X-ray band. 4U 0142+61 was an INTEGRAL target for 1 Ms in July 2005. During these observations it was also observed in the X-ray band with Swift and RXTE, in the optical and NIR with Gemini North and in the radio with the WSRT. In this paper we present the source-energy distribution. The spectral results obtained in the individual wave bands do not connect smoothly; apparently components of different origin contribute to the total spectrum. Remarkable is that the INTEGRAL hard X-ray spectrum (power-law index 0.79±0.10) is now measured up to an energy of ∼230 keV with no indication of a spectral break. Extrapolation of the INTEGRAL power-law spectrum to lower energies passes orders of magnitude underneath the NIR and optical fluxes, as well as the low ∼30 μJy (2σ) upper limit in the radio band.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Beloborodov, A.M., Thompson, C.: Astrophys. J. (2007, accepted)
Beloborodov, A.M., Thompson, C.: Astrophys. Space Sci. 308. DOI 10.1007/s10509-007-9318-x (2007)
Bradt, H.V., Rothschild, R.E., Swank, J.H.: Astron. Astrophys. Suppl. Ser. 97, 355 (1993)
Burrows, D.N., Hill, J.E., Nousek, J.A., et al.: Space Sci. Rev. 120, 165 (2005)
Camilo, F., Ransom, S., Halpern, J.P., et al.: Nature 442, 892 (2006)
den Hartog, P.R., Kuiper, L., Hermsen W., et al.: Astron. Telegr. 293, 1 (2004)
den Hartog, P.R., Hermsen, W., Kuiper, L., et al.: Astron. Astrophys. 451, 587 (2006)
den Hartog, P.R., Hermsen, W., Kuiper, L., et al.: Astron. Astrophys. (2007, in preparation)
Duncan, R.C., Thompson, C.: Astrophys. J. Lett. 392, L9 (1992)
Durant, M., van Kerkwijk, M.H.: Astrophys. J. 650, 1070 (2006a) (astro-ph/0606027)
Durant, M., van Kerkwijk, M.H.: Astrophys. J. 650, 1082 (2006b) (astro-ph/0606604)
Durant, M., van Kerkwijk, M.H.: Astrophys. J. 652, 576 (2006c)
Forman, W., Jones, C., Cominsky, L., et al.: Astrophys. J. Suppl. Ser. 38, 357 (1978)
Gaensler, B.M., Slane, P.O., Gotthelf, E.V., et al.: Astrophys. J. 559, 963 (2001)
Gavriil, F., Kaspi, V.M.: Astrophys. J. 567, 1067 (2002)
Giacconi, R., Murray, S., Gursky, H., et al.: Astrophys. J. 178, 281 (1972)
Göhler, E., Wilms, J., Staubert, R.: Astron. Astrophys. 433, 1079 (2005)
Goldwurm, A., David, P., Foshini, L., et al.: Astron. Astrophys. 411, L223 (2003)
Halpern, J.P., Gotthelf, E.V., Becker, R.H., et al.: Astrophys. J. Lett. 632, L29 (2005)
Hill, J.E., Angelini, L., Morris, D.C., et al.: Int. Soc. Opt. Eng. 5898, 325 (2005)
Hodapp, K.W., Jensen, J.B., Irwin, E.M., et al.: Publ. Astron. Soc. Pac. 115, 1388 (2003)
Hook, I.M., Jørgenson, I., Allington-Smith, J.R., et al.: Publ. Astron. Soc. Pac. 116, 425 (2004)
Hulleman, F., van Kerkwijk, M.H., Kulkarni, S.R.: Nature 408, 689 (2000)
Hulleman, F., van Kerkwijk, M.H., Kulkarni, S.R.: Astron. Astrophys. 416, 1037 (2004)
Israel, G.L., Mereghetti, S., Stella, L.: Astrophys. J. Lett. 433, L25 (1994)
Israel, G.L., Stella, L., Covino, S., et al.: IAU Symp. 218, 247 (2004)
Jahoda, K., Swank, J.H., Giles, A.B., et al.: Int. Soc. Opt. Eng. 2808, 59 (1996)
Kaspi, V.M.: Astrophys. Space Sci. (2007) this volume
Kern, B., Martin, C.: Nature 417, 527 (2002)
Kuiper, L., Hermsen, W., Mendez, M.: Astrophys. J. 613, 1173 (2004)
Kuiper, L., Hermsen, W., den Hartog, P.R., et al.: Astrophys. J. 645, 556 (2006)
Lebrun, F., Leray, J.P., Lavocat, P., et al.: Astron. Astrophys. 411, L141 (2003)
Malofeev, V.M., Malov, O.I., Teplykh, D.A., et al.: Astron. Rep. 49, 242 (2005)
Molkov, S., Cherepashchuck, A.M., Lutovinov, A.A., et al.: Astron. Lett. 30, 534 (2004)
Morii, M., Kawai, N., Kataoka, J., et al.: Adv. Space Res. 35, 1177 (2005)
Patel, S.K., Kouveliotou, C., Woods, P.M., et al.: Astrophys. J. 587, 367 (2003)
Rea, N., Turolla, R., Zane, S., et al.: (2007, submitted)
Revnivtsev, M.G., Sunyaev, R.A., Varshalovich, D.A., et al.: Astron. Lett. 30, 382 (2004)
Schönfelder, V., Aarts, H., Bennett, K., et al.: Astrophys. J. Suppl. Ser. 86, 657 (1993)
Smith, J.A., Tucker, D.L., Kent, S., et al.: Astron. J. 123, 2121 (2002)
Stetson, P.B.: Publ. Astron. Soc. Pac. 99, 191 (1987)
Thompson, C., Duncan, R.C.: Mon. Not. Roy. Astron. Soc. 275, 255 (1995)
Thompson, C., Duncan, R.C.: Astrophys. J. 473, 322 (1996)
Thompson, C., Beloborodov, A.M.: Astrophys. J. 634, 565 (2005)
Voûte, J.L.L., Kouwenhoven, M.L.A., van Haren, P.C., et al.: Astron. Astrophys. 385, 733 (2002)
Wang, Z., Chakrabarty, D., Kaplan, D.L.: Nature 440, 772 (2006)
Winkler, C., Courvoisier, T.J.-L., Di Cocco, G., et al.: Astron. Astrophys. 411, L1 (2003)
Woods, P.M., Thompson, C.: In: Lewin, W., van der Klis, M. (eds.) Compact Stellar X-ray Sources. Cambridge Astrophysics Series, vol. 39, p. 547. Cambridge University Press, Cambridge (2006) (astro-ph/0406133)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
den Hartog, P.R., Kuiper, L., Hermsen, W. et al. The first multi-wavelength campaign of AXP 4U 0142+61 from radio to hard X-rays. Astrophys Space Sci 308, 647–653 (2007). https://doi.org/10.1007/s10509-007-9367-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-007-9367-1