BeppoSAX detection of the Fe K line in the starburst galaxy NGC253

S. Mariani; M. Cappi; M. Persic; L. Bassani; G. G.C. Palumbo; L. Danese; A. J. Dean; G. Di Cocco; A. Franceschini; L. K. Hunt; F. Matteucci; E. Palazzi; Y. Rephaeli; P. Salucci; A. Spizzichino

doi:10.1016/S0920-5632(98)00284-9

BeppoSAX detection of the Fe K line in the starburst galaxy NGC253

S. Mariani^*, M. Cappi, M. Persic, L. Bassani, G. G.C. Palumbo, L. Danese, A. J. Dean, G. Di Cocco, A. Franceschini, L. K. Hunt, F. Matteucci, E. Palazzi, Y. Rephaeli, P. Salucci, A. Spizzichino

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

Preliminary results obtained from BeppoSAX observation of the starburst galaxy NGC253 are presented. X-ray emission from the object is clearly extended but most of the emission is concentrated on the optical nucleus. Preliminary analysis of the LEGS and MECS data obtained using the central 4' region indicates that the continuum is well fitted by two thermal components at 0.9 keV and 7 keV. Fe K line at 6.7 keV is detected for the first time in this galaxy; the line has an equivalent width of ∼ 300 eV. The line energy and the shape of the 2-10 keV continuum strongly support thermal origin of the hard X-ray emission of NGC253. Prom the measurement of the Fe K line the abundances can be unambiguously constrained to ∼ 0.25 the solar value. Other lines clearly detected are Si, S and Fe_XVIII/Ne, in agreement with ASCA results.

Original language	English
Pages (from-to)	546-549
Number of pages	4
Journal	Nuclear Physics B - Proceedings Supplements
Volume	69
Issue number	1-3
DOIs	https://doi.org/10.1016/S0920-5632(98)00284-9
State	Published - Jan 1999

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Mariani, S., Cappi, M., Persic, M., Bassani, L., Palumbo, G. G. C., Danese, L., Dean, A. J., Di Cocco, G., Franceschini, A., Hunt, L. K., Matteucci, F., Palazzi, E., Rephaeli, Y., Salucci, P., & Spizzichino, A. (1999). BeppoSAX detection of the Fe K line in the starburst galaxy NGC253. Nuclear Physics B - Proceedings Supplements, 69(1-3), 546-549. https://doi.org/10.1016/S0920-5632(98)00284-9

@article{85c8066e26404ffb913a18a59a3d4521,

title = "BeppoSAX detection of the Fe K line in the starburst galaxy NGC253",

abstract = "Preliminary results obtained from BeppoSAX observation of the starburst galaxy NGC253 are presented. X-ray emission from the object is clearly extended but most of the emission is concentrated on the optical nucleus. Preliminary analysis of the LEGS and MECS data obtained using the central 4' region indicates that the continuum is well fitted by two thermal components at 0.9 keV and 7 keV. Fe K line at 6.7 keV is detected for the first time in this galaxy; the line has an equivalent width of ∼ 300 eV. The line energy and the shape of the 2-10 keV continuum strongly support thermal origin of the hard X-ray emission of NGC253. Prom the measurement of the Fe K line the abundances can be unambiguously constrained to ∼ 0.25 the solar value. Other lines clearly detected are Si, S and FeXVIII/Ne, in agreement with ASCA results.",

author = "S. Mariani and M. Cappi and M. Persic and L. Bassani and Palumbo, {G. G.C.} and L. Danese and Dean, {A. J.} and {Di Cocco}, G. and A. Franceschini and Hunt, {L. K.} and F. Matteucci and E. Palazzi and Y. Rephaeli and P. Salucci and A. Spizzichino",

year = "1999",

month = jan,

doi = "10.1016/S0920-5632(98)00284-9",

language = "אנגלית",

volume = "69",

pages = "546--549",

journal = "Nuclear Physics B - Proceedings Supplements",

issn = "0920-5632",

publisher = "Elsevier",

number = "1-3",

}

Mariani, S, Cappi, M, Persic, M, Bassani, L, Palumbo, GGC, Danese, L, Dean, AJ, Di Cocco, G, Franceschini, A, Hunt, LK, Matteucci, F, Palazzi, E, Rephaeli, Y, Salucci, P & Spizzichino, A 1999, 'BeppoSAX detection of the Fe K line in the starburst galaxy NGC253', Nuclear Physics B - Proceedings Supplements, vol. 69, no. 1-3, pp. 546-549. https://doi.org/10.1016/S0920-5632(98)00284-9

TY - JOUR

T1 - BeppoSAX detection of the Fe K line in the starburst galaxy NGC253

AU - Mariani, S.

AU - Cappi, M.

AU - Persic, M.

AU - Bassani, L.

AU - Palumbo, G. G.C.

AU - Danese, L.

AU - Dean, A. J.

AU - Di Cocco, G.

AU - Franceschini, A.

AU - Hunt, L. K.

AU - Matteucci, F.

AU - Palazzi, E.

AU - Rephaeli, Y.

AU - Salucci, P.

AU - Spizzichino, A.

PY - 1999/1

Y1 - 1999/1

N2 - Preliminary results obtained from BeppoSAX observation of the starburst galaxy NGC253 are presented. X-ray emission from the object is clearly extended but most of the emission is concentrated on the optical nucleus. Preliminary analysis of the LEGS and MECS data obtained using the central 4' region indicates that the continuum is well fitted by two thermal components at 0.9 keV and 7 keV. Fe K line at 6.7 keV is detected for the first time in this galaxy; the line has an equivalent width of ∼ 300 eV. The line energy and the shape of the 2-10 keV continuum strongly support thermal origin of the hard X-ray emission of NGC253. Prom the measurement of the Fe K line the abundances can be unambiguously constrained to ∼ 0.25 the solar value. Other lines clearly detected are Si, S and FeXVIII/Ne, in agreement with ASCA results.

AB - Preliminary results obtained from BeppoSAX observation of the starburst galaxy NGC253 are presented. X-ray emission from the object is clearly extended but most of the emission is concentrated on the optical nucleus. Preliminary analysis of the LEGS and MECS data obtained using the central 4' region indicates that the continuum is well fitted by two thermal components at 0.9 keV and 7 keV. Fe K line at 6.7 keV is detected for the first time in this galaxy; the line has an equivalent width of ∼ 300 eV. The line energy and the shape of the 2-10 keV continuum strongly support thermal origin of the hard X-ray emission of NGC253. Prom the measurement of the Fe K line the abundances can be unambiguously constrained to ∼ 0.25 the solar value. Other lines clearly detected are Si, S and FeXVIII/Ne, in agreement with ASCA results.

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EP - 549

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

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ER -

BeppoSAX detection of the Fe K line in the starburst galaxy NGC253

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