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Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004. / Böttcher, M.; Harvey, J.; Joshi, M.; Villata, M.; Raiteri, C. M.; Bramel, D.; Mukherjee, R.; Savolainen, T.; Cui, W.; Fossati, G.; Smith, I. A.; Able, D.; Aller, H. D.; Aller, M. F.; Arkharov, A. A.; Augusteijn, T.; Baliyan, K.; Barnaby, D.; Berdyugin, A.; Benítez, E.; Boltwood, P.; Carini, M.; Carosati, D.; Ciprini, S.; Coloma, J. M.; Crapanzano, S.; De Diego, J. A.; Di Paola, A.; Dolci, M.; Fan, J.; Frasca, A.; Hagen-Thorn, V.; Horan, D.; Ibrahimov, M.; Kimeridze, G. N.; Kovalev, Y. A.; Kovalev, Y. Y.; Kurtanidze, O.; Lähteenmäki, A.; Lanteri, L.; Larionov, V. M.; Larionova, E. G.; Lindfors, E.; Marilli, E.; Mirabal, N.; Nikolashvili, M.; Nilsson, K.; Ohlert, J. M.; Ohnishi, T.; Oksanen, A.; Ostorero, L.; Oyer, G.; Papadakis, I.; Pasanen, M.; Poteet, C.; Pursimo, T.; Sadakane, K.; Sigua, L. A.; Takalo, L.; Tartar, J. B.; Teräsranta, H.; Tosti, G.; Walters, R.; Wiik, K.; Wilking, B. A.; Wills, W.; Xilouris, E.; Fletcher, A. B.; Gu, M.; Lee, C. U.; Pak, S.; Yim, H. S.

в: Astrophysical Journal, Том 631, № 1 I, 20.09.2005, стр. 169-186.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Böttcher, M, Harvey, J, Joshi, M, Villata, M, Raiteri, CM, Bramel, D, Mukherjee, R, Savolainen, T, Cui, W, Fossati, G, Smith, IA, Able, D, Aller, HD, Aller, MF, Arkharov, AA, Augusteijn, T, Baliyan, K, Barnaby, D, Berdyugin, A, Benítez, E, Boltwood, P, Carini, M, Carosati, D, Ciprini, S, Coloma, JM, Crapanzano, S, De Diego, JA, Di Paola, A, Dolci, M, Fan, J, Frasca, A, Hagen-Thorn, V, Horan, D, Ibrahimov, M, Kimeridze, GN, Kovalev, YA, Kovalev, YY, Kurtanidze, O, Lähteenmäki, A, Lanteri, L, Larionov, VM, Larionova, EG, Lindfors, E, Marilli, E, Mirabal, N, Nikolashvili, M, Nilsson, K, Ohlert, JM, Ohnishi, T, Oksanen, A, Ostorero, L, Oyer, G, Papadakis, I, Pasanen, M, Poteet, C, Pursimo, T, Sadakane, K, Sigua, LA, Takalo, L, Tartar, JB, Teräsranta, H, Tosti, G, Walters, R, Wiik, K, Wilking, BA, Wills, W, Xilouris, E, Fletcher, AB, Gu, M, Lee, CU, Pak, S & Yim, HS 2005, 'Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004', Astrophysical Journal, Том. 631, № 1 I, стр. 169-186. https://doi.org/10.1086/432609

APA

Böttcher, M., Harvey, J., Joshi, M., Villata, M., Raiteri, C. M., Bramel, D., Mukherjee, R., Savolainen, T., Cui, W., Fossati, G., Smith, I. A., Able, D., Aller, H. D., Aller, M. F., Arkharov, A. A., Augusteijn, T., Baliyan, K., Barnaby, D., Berdyugin, A., ... Yim, H. S. (2005). Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004. Astrophysical Journal, 631(1 I), 169-186. https://doi.org/10.1086/432609

Vancouver

Böttcher M, Harvey J, Joshi M, Villata M, Raiteri CM, Bramel D и пр. Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004. Astrophysical Journal. 2005 Сент. 20;631(1 I):169-186. https://doi.org/10.1086/432609

Author

Böttcher, M. ; Harvey, J. ; Joshi, M. ; Villata, M. ; Raiteri, C. M. ; Bramel, D. ; Mukherjee, R. ; Savolainen, T. ; Cui, W. ; Fossati, G. ; Smith, I. A. ; Able, D. ; Aller, H. D. ; Aller, M. F. ; Arkharov, A. A. ; Augusteijn, T. ; Baliyan, K. ; Barnaby, D. ; Berdyugin, A. ; Benítez, E. ; Boltwood, P. ; Carini, M. ; Carosati, D. ; Ciprini, S. ; Coloma, J. M. ; Crapanzano, S. ; De Diego, J. A. ; Di Paola, A. ; Dolci, M. ; Fan, J. ; Frasca, A. ; Hagen-Thorn, V. ; Horan, D. ; Ibrahimov, M. ; Kimeridze, G. N. ; Kovalev, Y. A. ; Kovalev, Y. Y. ; Kurtanidze, O. ; Lähteenmäki, A. ; Lanteri, L. ; Larionov, V. M. ; Larionova, E. G. ; Lindfors, E. ; Marilli, E. ; Mirabal, N. ; Nikolashvili, M. ; Nilsson, K. ; Ohlert, J. M. ; Ohnishi, T. ; Oksanen, A. ; Ostorero, L. ; Oyer, G. ; Papadakis, I. ; Pasanen, M. ; Poteet, C. ; Pursimo, T. ; Sadakane, K. ; Sigua, L. A. ; Takalo, L. ; Tartar, J. B. ; Teräsranta, H. ; Tosti, G. ; Walters, R. ; Wiik, K. ; Wilking, B. A. ; Wills, W. ; Xilouris, E. ; Fletcher, A. B. ; Gu, M. ; Lee, C. U. ; Pak, S. ; Yim, H. S. / Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004. в: Astrophysical Journal. 2005 ; Том 631, № 1 I. стр. 169-186.

BibTeX

@article{28b30be4d1394d10ba3664de86180310,
title = "Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004",
abstract = " The BL Lac object 3C 66A was the target of an extensive multiwavelength monitoring campaign from 2003 July through 2004 April (with a core campaign from 2003 September to 2003 December) involving observations throughout the electromagnetic spectrum. Radio, infrared, and optical observations were carried out by the WEBT-ENIGMA collaboration. At higher energies, 3C 66A was observed in X-rays (RXTE), and at very high energy (VHE) in γ-rays (STACEE, VERITAS). In addition, the source has been observed with the VLBA at nine epochs throughout the period 2003 September to 2004 December, including three epochs contemporaneous with the core campaign. A gradual brightening of the source over the course of the campaign was observed at all optical frequencies, culminating in a very bright maximum around 2004 February 18. The WEBT campaign revealed micro variability with flux changes of ∼5% on timescales as short as ∼2 hr. The source was in a relatively bright state, with several bright flares on timescales of several days. The spectral energy distribution (SED) indicates a vF v peak in the optical regime. A weak trend of optical spectral hysteresis with a trend of spectral softening throughout both the rising and decaying phases has been found. On longer timescales, there appears to be a weak indication of a positive hardness-intensity correlation for low optical fluxes, which does not persist at higher flux levels. The 3-10 keV X-ray flux of 3C 66A during the core campaign was historically high and its spectrum very soft, indicating that the low-frequency component of the broadband SED extends beyond ∼10 keV. No significant X-ray flux and/or spectral variability was detected. STACEE and Whipple observations provided upper flux limits at >150 and >390 GeV, respectively. The 22 and 43 GHz data from the three VLBA epochs made between 2003 September and 2004 January indicate a rather smooth jet with only very moderate internal structure. Evidence for superluminal motion (8.5 ± 5.6 h -1 c) was found in only one of six components, while the apparent velocities of all other components are consistent with 0. The radial radio brightness profile suggests a magnetic field decay ∝ r -1 and, thus, a predominantly perpendicular magnetic field orientation.",
author = "M. B{\"o}ttcher and J. Harvey and M. Joshi and M. Villata and Raiteri, {C. M.} and D. Bramel and R. Mukherjee and T. Savolainen and W. Cui and G. Fossati and Smith, {I. A.} and D. Able and Aller, {H. D.} and Aller, {M. F.} and Arkharov, {A. A.} and T. Augusteijn and K. Baliyan and D. Barnaby and A. Berdyugin and E. Ben{\'i}tez and P. Boltwood and M. Carini and D. Carosati and S. Ciprini and Coloma, {J. M.} and S. Crapanzano and {De Diego}, {J. A.} and {Di Paola}, A. and M. Dolci and J. Fan and A. Frasca and V. Hagen-Thorn and D. Horan and M. Ibrahimov and Kimeridze, {G. N.} and Kovalev, {Y. A.} and Kovalev, {Y. Y.} and O. Kurtanidze and A. L{\"a}hteenm{\"a}ki and L. Lanteri and Larionov, {V. M.} and Larionova, {E. G.} and E. Lindfors and E. Marilli and N. Mirabal and M. Nikolashvili and K. Nilsson and Ohlert, {J. M.} and T. Ohnishi and A. Oksanen and L. Ostorero and G. Oyer and I. Papadakis and M. Pasanen and C. Poteet and T. Pursimo and K. Sadakane and Sigua, {L. A.} and L. Takalo and Tartar, {J. B.} and H. Ter{\"a}sranta and G. Tosti and R. Walters and K. Wiik and Wilking, {B. A.} and W. Wills and E. Xilouris and Fletcher, {A. B.} and M. Gu and Lee, {C. U.} and S. Pak and Yim, {H. S.}",
year = "2005",
month = sep,
day = "20",
doi = "10.1086/432609",
language = "English",
volume = "631",
pages = "169--186",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1 I",

}

RIS

TY - JOUR

T1 - Coordinated multiwavelength observation of 3C 66A during the webt campaign of 2003-2004

AU - Böttcher, M.

AU - Harvey, J.

AU - Joshi, M.

AU - Villata, M.

AU - Raiteri, C. M.

AU - Bramel, D.

AU - Mukherjee, R.

AU - Savolainen, T.

AU - Cui, W.

AU - Fossati, G.

AU - Smith, I. A.

AU - Able, D.

AU - Aller, H. D.

AU - Aller, M. F.

AU - Arkharov, A. A.

AU - Augusteijn, T.

AU - Baliyan, K.

AU - Barnaby, D.

AU - Berdyugin, A.

AU - Benítez, E.

AU - Boltwood, P.

AU - Carini, M.

AU - Carosati, D.

AU - Ciprini, S.

AU - Coloma, J. M.

AU - Crapanzano, S.

AU - De Diego, J. A.

AU - Di Paola, A.

AU - Dolci, M.

AU - Fan, J.

AU - Frasca, A.

AU - Hagen-Thorn, V.

AU - Horan, D.

AU - Ibrahimov, M.

AU - Kimeridze, G. N.

AU - Kovalev, Y. A.

AU - Kovalev, Y. Y.

AU - Kurtanidze, O.

AU - Lähteenmäki, A.

AU - Lanteri, L.

AU - Larionov, V. M.

AU - Larionova, E. G.

AU - Lindfors, E.

AU - Marilli, E.

AU - Mirabal, N.

AU - Nikolashvili, M.

AU - Nilsson, K.

AU - Ohlert, J. M.

AU - Ohnishi, T.

AU - Oksanen, A.

AU - Ostorero, L.

AU - Oyer, G.

AU - Papadakis, I.

AU - Pasanen, M.

AU - Poteet, C.

AU - Pursimo, T.

AU - Sadakane, K.

AU - Sigua, L. A.

AU - Takalo, L.

AU - Tartar, J. B.

AU - Teräsranta, H.

AU - Tosti, G.

AU - Walters, R.

AU - Wiik, K.

AU - Wilking, B. A.

AU - Wills, W.

AU - Xilouris, E.

AU - Fletcher, A. B.

AU - Gu, M.

AU - Lee, C. U.

AU - Pak, S.

AU - Yim, H. S.

PY - 2005/9/20

Y1 - 2005/9/20

N2 - The BL Lac object 3C 66A was the target of an extensive multiwavelength monitoring campaign from 2003 July through 2004 April (with a core campaign from 2003 September to 2003 December) involving observations throughout the electromagnetic spectrum. Radio, infrared, and optical observations were carried out by the WEBT-ENIGMA collaboration. At higher energies, 3C 66A was observed in X-rays (RXTE), and at very high energy (VHE) in γ-rays (STACEE, VERITAS). In addition, the source has been observed with the VLBA at nine epochs throughout the period 2003 September to 2004 December, including three epochs contemporaneous with the core campaign. A gradual brightening of the source over the course of the campaign was observed at all optical frequencies, culminating in a very bright maximum around 2004 February 18. The WEBT campaign revealed micro variability with flux changes of ∼5% on timescales as short as ∼2 hr. The source was in a relatively bright state, with several bright flares on timescales of several days. The spectral energy distribution (SED) indicates a vF v peak in the optical regime. A weak trend of optical spectral hysteresis with a trend of spectral softening throughout both the rising and decaying phases has been found. On longer timescales, there appears to be a weak indication of a positive hardness-intensity correlation for low optical fluxes, which does not persist at higher flux levels. The 3-10 keV X-ray flux of 3C 66A during the core campaign was historically high and its spectrum very soft, indicating that the low-frequency component of the broadband SED extends beyond ∼10 keV. No significant X-ray flux and/or spectral variability was detected. STACEE and Whipple observations provided upper flux limits at >150 and >390 GeV, respectively. The 22 and 43 GHz data from the three VLBA epochs made between 2003 September and 2004 January indicate a rather smooth jet with only very moderate internal structure. Evidence for superluminal motion (8.5 ± 5.6 h -1 c) was found in only one of six components, while the apparent velocities of all other components are consistent with 0. The radial radio brightness profile suggests a magnetic field decay ∝ r -1 and, thus, a predominantly perpendicular magnetic field orientation.

AB - The BL Lac object 3C 66A was the target of an extensive multiwavelength monitoring campaign from 2003 July through 2004 April (with a core campaign from 2003 September to 2003 December) involving observations throughout the electromagnetic spectrum. Radio, infrared, and optical observations were carried out by the WEBT-ENIGMA collaboration. At higher energies, 3C 66A was observed in X-rays (RXTE), and at very high energy (VHE) in γ-rays (STACEE, VERITAS). In addition, the source has been observed with the VLBA at nine epochs throughout the period 2003 September to 2004 December, including three epochs contemporaneous with the core campaign. A gradual brightening of the source over the course of the campaign was observed at all optical frequencies, culminating in a very bright maximum around 2004 February 18. The WEBT campaign revealed micro variability with flux changes of ∼5% on timescales as short as ∼2 hr. The source was in a relatively bright state, with several bright flares on timescales of several days. The spectral energy distribution (SED) indicates a vF v peak in the optical regime. A weak trend of optical spectral hysteresis with a trend of spectral softening throughout both the rising and decaying phases has been found. On longer timescales, there appears to be a weak indication of a positive hardness-intensity correlation for low optical fluxes, which does not persist at higher flux levels. The 3-10 keV X-ray flux of 3C 66A during the core campaign was historically high and its spectrum very soft, indicating that the low-frequency component of the broadband SED extends beyond ∼10 keV. No significant X-ray flux and/or spectral variability was detected. STACEE and Whipple observations provided upper flux limits at >150 and >390 GeV, respectively. The 22 and 43 GHz data from the three VLBA epochs made between 2003 September and 2004 January indicate a rather smooth jet with only very moderate internal structure. Evidence for superluminal motion (8.5 ± 5.6 h -1 c) was found in only one of six components, while the apparent velocities of all other components are consistent with 0. The radial radio brightness profile suggests a magnetic field decay ∝ r -1 and, thus, a predominantly perpendicular magnetic field orientation.

UR - http://www.scopus.com/inward/record.url?scp=27744520055&partnerID=8YFLogxK

U2 - 10.1086/432609

DO - 10.1086/432609

M3 - Article

AN - SCOPUS:27744520055

VL - 631

SP - 169

EP - 186

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1 I

ER -

ID: 39067558