Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours

L. Maraschi; G. Fossati; F. Tavecchio; L. Chiappetti; A. Celotti; G. Ghisellini; P. Grandi; E. Pian; G. Tagliaferri; A. Treves; A. C. Breslin; J. H. Buckley; D. A. Carter-Lewis; M. Catanese; M. F. Cawley; D. J. Fegan; S. Fegan; J. Finley; J. Gaidos; T. Hall; A. M. Hillas; F. Krennrich; R. W. Lessard; C. Masterson; P. Moriarty; J. Quinn; J. Rose; F. Samuelson; T. C. Weekes

doi:10.1016/S0927-6505(99)00046-8

Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours

L. Maraschi
, G. Fossati
, F. Tavecchio
, L. Chiappetti
, A. Celotti
, G. Ghisellini
, P. Grandi
, E. Pian
, G. Tagliaferri
, A. Treves
, A. C. Breslin
, J. H. Buckley
, D. A. Carter-Lewis
, M. Catanese
, M. F. Cawley
, D. J. Fegan
, S. Fegan
, J. Finley
, J. Gaidos
, T. Hall

A. M. Hillas, F. Krennrich, R. W. Lessard, C. Masterson, P. Moriarty, J. Quinn, J. Rose, F. Samuelson, T. C. Weekes

Department of Physics

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Mkn 421 was observed for about two days with BeppoSAX, prior to and partly overlapping the start of a 1 week continuous exposure with ASCA in April 1998, as part of a world-wide multiwavelength campaign. A pronounced, well-defined flare observed in X-rays was also observed simultaneously at TeV energies by the Whipple Observatory's 10 m gamma-ray telescope. These data provide the first evidence that the X-ray and TeV intensities are well correlated on time scales of hours.

Original language	English
Pages (from-to)	189-192
Number of pages	4
Journal	Astroparticle Physics
Volume	11
Issue number	1-2
DOIs	https://doi.org/10.1016/S0927-6505(99)00046-8
State	Published - Jun 1999

Keywords

BL Lacertae objects
Spectra
X-rays and gamma-rays

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10.1016/S0927-6505(99)00046-8

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Maraschi, L., Fossati, G., Tavecchio, F., Chiappetti, L., Celotti, A., Ghisellini, G., Grandi, P., Pian, E., Tagliaferri, G., Treves, A., Breslin, A. C., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., Fegan, D. J., Fegan, S., Finley, J., Gaidos, J., ... Weekes, T. C. (1999). Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours. Astroparticle Physics, 11(1-2), 189-192. https://doi.org/10.1016/S0927-6505(99)00046-8

@article{a6bd5413f70c44098bcd48eaeae5b410,

title = "Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours",

abstract = "Mkn 421 was observed for about two days with BeppoSAX, prior to and partly overlapping the start of a 1 week continuous exposure with ASCA in April 1998, as part of a world-wide multiwavelength campaign. A pronounced, well-defined flare observed in X-rays was also observed simultaneously at TeV energies by the Whipple Observatory's 10 m gamma-ray telescope. These data provide the first evidence that the X-ray and TeV intensities are well correlated on time scales of hours.",

keywords = "BL Lacertae objects, Spectra, X-rays and gamma-rays",

author = "L. Maraschi and G. Fossati and F. Tavecchio and L. Chiappetti and A. Celotti and G. Ghisellini and P. Grandi and E. Pian and G. Tagliaferri and A. Treves and Breslin, \{A. C.\} and Buckley, \{J. H.\} and Carter-Lewis, \{D. A.\} and M. Catanese and Cawley, \{M. F.\} and Fegan, \{D. J.\} and S. Fegan and J. Finley and J. Gaidos and T. Hall and Hillas, \{A. M.\} and F. Krennrich and Lessard, \{R. W.\} and C. Masterson and P. Moriarty and J. Quinn and J. Rose and F. Samuelson and Weekes, \{T. C.\}",

year = "1999",

month = jun,

doi = "10.1016/S0927-6505(99)00046-8",

language = "English",

volume = "11",

pages = "189--192",

journal = "Astroparticle Physics",

issn = "0927-6505",

number = "1-2",

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Maraschi, L, Fossati, G, Tavecchio, F, Chiappetti, L, Celotti, A, Ghisellini, G, Grandi, P, Pian, E, Tagliaferri, G, Treves, A, Breslin, AC, Buckley, JH, Carter-Lewis, DA, Catanese, M, Cawley, MF, Fegan, DJ, Fegan, S, Finley, J, Gaidos, J, Hall, T, Hillas, AM, Krennrich, F, Lessard, RW, Masterson, C, Moriarty, P, Quinn, J, Rose, J, Samuelson, F & Weekes, TC 1999, 'Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours', Astroparticle Physics, vol. 11, no. 1-2, pp. 189-192. https://doi.org/10.1016/S0927-6505(99)00046-8

TY - JOUR

T1 - Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours

AU - Maraschi, L.

AU - Fossati, G.

AU - Tavecchio, F.

AU - Chiappetti, L.

AU - Celotti, A.

AU - Ghisellini, G.

AU - Grandi, P.

AU - Pian, E.

AU - Tagliaferri, G.

AU - Treves, A.

AU - Breslin, A. C.

AU - Buckley, J. H.

AU - Carter-Lewis, D. A.

AU - Catanese, M.

AU - Cawley, M. F.

AU - Fegan, D. J.

AU - Fegan, S.

AU - Finley, J.

AU - Gaidos, J.

AU - Hall, T.

AU - Hillas, A. M.

AU - Krennrich, F.

AU - Lessard, R. W.

AU - Masterson, C.

AU - Moriarty, P.

AU - Quinn, J.

AU - Rose, J.

AU - Samuelson, F.

AU - Weekes, T. C.

PY - 1999/6

Y1 - 1999/6

N2 - Mkn 421 was observed for about two days with BeppoSAX, prior to and partly overlapping the start of a 1 week continuous exposure with ASCA in April 1998, as part of a world-wide multiwavelength campaign. A pronounced, well-defined flare observed in X-rays was also observed simultaneously at TeV energies by the Whipple Observatory's 10 m gamma-ray telescope. These data provide the first evidence that the X-ray and TeV intensities are well correlated on time scales of hours.

AB - Mkn 421 was observed for about two days with BeppoSAX, prior to and partly overlapping the start of a 1 week continuous exposure with ASCA in April 1998, as part of a world-wide multiwavelength campaign. A pronounced, well-defined flare observed in X-rays was also observed simultaneously at TeV energies by the Whipple Observatory's 10 m gamma-ray telescope. These data provide the first evidence that the X-ray and TeV intensities are well correlated on time scales of hours.

KW - BL Lacertae objects

KW - Spectra

KW - X-rays and gamma-rays

UR - https://www.scopus.com/pages/publications/0033147890

U2 - 10.1016/S0927-6505(99)00046-8

DO - 10.1016/S0927-6505(99)00046-8

M3 - Article

AN - SCOPUS:0033147890

SN - 0927-6505

VL - 11

SP - 189

EP - 192

JO - Astroparticle Physics

JF - Astroparticle Physics

IS - 1-2

ER -

Correlated variability of Mkn 421 at X-ray and TeV wavelengths on time scales of hours

Abstract

Keywords

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