The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Rapid Compton-thick/Compton-thin Transitions in the Seyfert 2 Galaxy NGC 1365
Open accessAbstract
We present multiple Chandra and XMM-Newton observations of the type 1.8 Seyfert galaxy NGC 1365, which shows the most dramatic X-ray spectral changes observed so far in an active galactic nucleus: the source switched from reflection-dominated to transmission-dominated and back in just 6 weeks. During this time the soft thermal component, arising from an ~1 kpc region around the center, remained constant. The reflection component is constant at all timescales, and its high flux relative to the primary component implies the presence of thick gas covering a large fraction of the solid angle. The presence of this gas, and the fast variability timescale, suggest that the Compton-thick to Compton-thin change is due to variation in the line-of-sight absorber rather than to extreme intrinsic emission variability. We discuss a structure of the circumnuclear absorber/reflector that can explain the observed X-ray spectral and temporal properties.
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Spergel, D. N., Verde, L., Peiris, H. V., Komatsu, E., Nolta, M. R., Bennett, C. L., Halpern, M., Hinshaw, G., Jarosik, N., Kogut, A., et al. (2003) · The Astrophysical Journal Supplement Series · doi:10.1086/377226 · Cited by 10,976
Unified Schemes for Radio-Loud Active Galactic Nuclei
Urry, C. M., & Padovani, P. (1995) · Publications of the Astronomical Society of the Pacific · doi:10.1086/133630 · Cited by 4,868
Accretion Power in Astrophysics
Frank, J., King, A., & Raine, D. (2002) · Cambridge University Press eBooks · doi:10.1017/cbo9781139164245 · Cited by 2,526
Atlas of quasar energy distributions
Elvis, M., Wilkes, B. J., McDowell, J. C., Green, R. F., Bechtold, J., Willner, S. P., Oey, M. S., Polomski, E., & Cutri, R. (1994) · The Astrophysical Journal Supplement Series · doi:10.1086/192093 · Cited by 1,775
Self-citationThe Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
Marconi, A., & Hunt, L. K. (2003) · The Astrophysical Journal · doi:10.1086/375804 · Cited by 1,708
Jarrett, T. H., Chester, T., Cutri, R., Schneider, S. E., & Huchra, J. P. (2003) · The Astronomical Journal · doi:10.1086/345794 · Cited by 1,040
Accretion Power in Astrophysics: Third Edition
Frank, J., King, A. R., & Raine, D. J. (2002) · Cited by 461
Ubiquitous Variability of X‐Ray–absorbing Column Densities in Seyfert 2 Galaxies
Risaliti, G., Elvis, M., & Nicastro, F. (2002) · The Astrophysical Journal · doi:10.1086/324146 · Cited by 353
Self-citationSupermassive Black Holes in the Distant Universe
(2004) · Astrophysics and Space Science Library · doi:10.1007/978-1-4020-2471-9 · Cited by 160
Megamaser Disks in Active Galactic Nuclei
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“…inclination angles, plenty of the failed wind component will be intercepted, giving less sporadic but still low-velocity UV and X-ray absorption, and UV and Xray eclipses of the continuum source due to clumps of the failed wind intercepting the l.o.s. (e.g., NGC 1365, Risaliti et al. 2005).”
Background
Metadata
- Authors
- Risaliti, G., Elvis, M., Fabbiano, G., Baldi, A., & Zezas, A.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2005-03-25
- Volume
- 623
- Issue
- 2
- Pages
- L93-L96
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2086583767
- Cited by
- 287
- References
- 12
- FWCI
- 8.00
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Risaliti, G., Elvis, M., Fabbiano, G., Baldi, A., & Zezas, A. (2005). Rapid Compton-thick/Compton-thin Transitions in the Seyfert 2 Galaxy NGC 1365. The Astrophysical Journal. https://doi.org/10.1086/430252
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