The first broad-band X-ray view of the narrow-line Seyfert 1 Ton S180

被引:23
|
作者
Matzeu, G. A. [1 ,2 ]
Nardini, E. [3 ,4 ]
Parker, M. L. [1 ]
Reeves, J. N. [5 ]
Braito, V [2 ,5 ]
Porquet, D. [6 ]
Middei, R. [7 ,8 ]
Kammoun, E. [9 ]
Lusso, E. [3 ,4 ]
Alston, W. N. [10 ]
Giustini, M. [11 ]
Lobban, A. P. [1 ]
Joyce, A. M. [1 ]
Igo, Z. [1 ]
Ebrero, J. [1 ]
Ballo, L. [1 ]
Santos-Lleo, M. [1 ]
Schartel, N. [1 ]
机构
[1] European Space Agcy ESA, European Space Astron Ctr ESAC, E-28691 Madrid, Spain
[2] INAF, Osservatorio Astron Brera, Via Bianchi 46, I-23807 Merate, LC, Italy
[3] Univ Firenze, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Florence, Italy
[4] INAF, Osservatorio Astrofis Arcetri, Largo Enrico Fermi 5, I-50125 Florence, Italy
[5] Catholic Univ Amer, Inst Astrophys & Computat Sci, Dept Phys, Washington, DC 20064 USA
[6] Aix Marseille Univ, CNRS, LAM, CNES, Marseille, France
[7] INAF, Osservatorio Astron Roma, Via Frascati 33, I-00078 Rome, Italy
[8] ASI, Space Sci Data Ctr, Via Politecn Snc, I-00133 Rome, Italy
[9] Univ Michigan, Dept Astron, 1085 South Univ Ave, Ann Arbor, MI 48109 USA
[10] Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
[11] Ctr Astrobiol CSIC INTA, Camino Bajo Castillo S-N, E-28692 Madrid, Spain
基金
欧洲研究理事会;
关键词
black hole physics; galaxies: active; galaxies: individual: (Ton S180); galaxies: nuclei; X-rays: galaxies; REFLECTION EMISSIVITY PROFILES; SPECTRAL ENERGY-DISTRIBUTION; XMM-NEWTON OBSERVATION; BLACK-HOLE SPIN; ACCRETION DISC; ULTRAFAST OUTFLOW; HIGH-DENSITY; SOFT; AGN; EXCESS;
D O I
10.1093/mnras/staa2076
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present joint XMM-Newton and NuSTAR observations of the 'bare' narrow-line Seyfert 1 Ton S180 (z = 0.062), carried out in 2016 and providing the first hardX-ray view of this luminous galaxy. We find that the 0.4-30 keV band cannot be self-consistently reproduced by relativistic reflection models, which fail to account simultaneously for the soft and hard X-ray emission. The smooth soft excess prefers extreme blurring parameters, confirmed by the nearly featureless nature of the Reflection Grating Spectrometer (RGS) spectrum, while the moderately broad Fe K line and the modest hard excess above 10 keV appear to arise in a milder gravity regime. By allowing a different origin of the soft excess, the broad-band X-ray spectrum and overall spectral energy distribution (SED) are well explained by a combination of (a) direct thermal emission from the accretion disc, dominating from the optical to the far/extreme UV; (b) Comptonization of seed disc photons by a warm (kT(e) similar to 0.3 keV) and optically thick (tau similar to 10) corona, mostly contributing to the soft X-rays; (c) Comptonization by a standard hot (kT(e) greater than or similar to 100 keV) and optically thin (tau < 0.5) corona, responsible for the primary X-ray continuum; and (d) reflection from the mid/outer part of the disc. The two coronae are suggested to be rather compact, with R-hot less than or similar to R-warm less than or similar to 10 r(g). Our SED analysis implies that Ton S180 accretes at super-Eddington rates. This is a key condition for the launch of a wind, marginal (i.e. 3.1 sigma significance) evidence of which is indeed found in the RGS spectrum.
引用
收藏
页码:2352 / 2370
页数:19
相关论文
共 50 条
  • [31] A broad-band X-ray view of NGC 4945
    Guainazzi, M
    Matt, G
    Brandt, WN
    Antonelli, LA
    Barr, P
    Bassani, L
    ASTRONOMY & ASTROPHYSICS, 2000, 356 (02) : 463 - 474
  • [32] Investigating the reflection contribution to the X-ray emission of Ton S180
    Nardini, E.
    Fabian, A. C.
    Walton, D. J.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 423 (04) : 3299 - 3307
  • [33] A Suzaku sample of unabsorbed narrow-line and broad-line Seyfert 1 galaxies - I. X-ray spectral properties
    Waddell, S. G. H.
    Gallo, L. C.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 498 (04) : 5207 - 5226
  • [34] Broadband X-ray observations of four gamma-ray narrow-line Seyfert 1 galaxies
    Berton, M.
    Braito, V
    Mathur, S.
    Foschini, L.
    Piconcelli, E.
    Chen, S.
    Pogge, R. W.
    ASTRONOMY & ASTROPHYSICS, 2019, 632
  • [35] MID-INFRARED OBSERVATIONS OF SEYFERT-1 AND NARROW-LINE X-RAY GALAXIES
    GLASS, IS
    MOORWOOD, AFM
    EICHENDORF, W
    ASTRONOMY & ASTROPHYSICS, 1982, 107 (02) : 276 - 282
  • [36] An X-Ray Periodicity of ∼1.8 hr in Narrow-line Seyfert 1 Galaxy Mrk 766
    Zhang, Peng
    Zhang, Peng-fei
    Yan, Jing-zhi
    Fan, Yi-zhong
    Liu, Qing-zhong
    ASTROPHYSICAL JOURNAL, 2017, 849 (01):
  • [37] X-ray power density spectrum of the narrow-line Seyfert 1 galaxy Arakelian 564
    Pounds, K
    Edelson, R
    Markowitz, A
    Vaughan, S
    ASTROPHYSICAL JOURNAL, 2001, 550 (01): : L15 - L18
  • [38] Arakelian 564: An unusual component in the X-ray spectra of narrow-line Seyfert 1 galaxies
    Turner, TJ
    George, IM
    Netzer, H
    ASTROPHYSICAL JOURNAL, 1999, 526 (01): : 52 - 59
  • [39] X-ray spectra of Narrow-Line Seyfert 1 Galaxies in comparison with Galactic black holes
    Murashima, MA
    Kubota, A
    Makishima, K
    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2004, (155): : 389 - 390
  • [40] Soft X-ray spectral variations of the narrow-line Seyfert 1 galaxy Markarian 766
    Page, MJ
    Carrera, FJ
    Mittaz, JPD
    Mason, KO
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 305 (04) : 775 - 794