K. D. Denney, Gisella De Rosa, K. V. Croxall, Anjali Gupta, Misty C. Bentz, Michael Fausnaugh, C. J. Grier, Paul Martini, S. Mathur, B. M. Peterson, Richard W. Pogge, B. J. Shappee,
... life of the active galactic nucleus (AGN) in Mrk 590, traditionally known as a classic Seyfert 1 galaxy. ... find that the activity in the nucleus of Mrk 590 has diminished so significantly that the continuum luminosity ... in the optical spectrum, our observations demonstrate that Mrk 590 has now become a "changing look" AGN. If classified by recent optical spectra, Mrk 590 would be a Seyfert ~1.9-2, where ... data instead suggest that the current state of Mrk 590 is a consequence of the change in luminosity, ...
Tópico(s): Astronomy and Astrophysical Research
2014 - IOP Publishing | The Astrophysical Journal
Mitsuru Kokubo, Takeo Minezaki,
... of a "changing-look" active galactic nucleus (AGN) Mrk 590 between 1998 and 2007. Multi-band multi-epoch ... Active Galactic Nuclei Monitoring (MAGNUM) project reveal that Mrk 590 experienced a sudden luminosity decrease during the period ... dust torus innermost radius $R_\text{dust}$ of Mrk 590 had become very small [$R_\text{dust} \simeq ... reverberation mapping observations during the bright state of Mrk 590 in $1990-1996$. These observations indicate that the innermost radius of the dust torus in Mrk 590 decreased rapidly after the AGN ultraviolet-optical luminosity ...
Tópico(s): Astrophysical Phenomena and Observations
2019 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
Jun Yang, Ilse van Bemmel, Z. Paragi, S. Komossa, Feng Yuan, Xiaolong Yang, Tao An, Zhiyuan Li, Cormac Reynolds, J. B. R. Oonk, Xiang Liu, Qingwen Wu,
... galaxy at a redshift of z = 0.0264, Mrk 590 suffered such a cycle of Seyfert type changes ... 2006 and 2017. Over the last fifty years, Mrk 590 also underwent a powerful continuum outburst and a ... as the origin of the type changes in Mrk 590.
Tópico(s): Galaxies: Formation, Evolution, Phenomena
2021 - Oxford University Press | Monthly Notices of the Royal Astronomical Society Letters
Zhiyuan Li, M. Vestergaard, V. Casasola, D Lawther, B. M. Peterson,
... investigate if the active galactic nucleus (AGN) of Mrk 590, whose supermassive black hole was until recently highly ... 2) line and 344 GHz continuum emission in Mrk 590. We detect no 12CO(3–2) emission in ... of the AGN, may be refuelling the centre. Mrk 590 does not have significantly less gas than other ...
Tópico(s): Astrophysics and Star Formation Studies
2015 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
S. Mathur, K. D. Denney, Anjali Gupta, M. Vestergaard, Gisella De Rosa, Y. Krongold, F. Nicastro, J. S. Collinson, M. R. Goad, K. T. Korista, Richard W. Pogge, B. M. Peterson,
Abstract Mrk 590 was originally classified as a Seyfert 1 galaxy, but then it underwent dramatic changes: the nuclear luminosity ... Hubble Space Telescope observations from 2014 show that Mrk 590 is awakening, changing its appearance again. While the ...
Tópico(s): Astronomy and Astrophysical Research
2018 - IOP Publishing | The Astrophysical Journal
S. I. Raimundo, M. Vestergaard, Zhiyuan Li, D Lawther, V. Casasola, B. M. Peterson,
... the host galaxy of a changing-look AGN, Mrk 590, using high spatial resolution optical and near-infrared ... yr absence, the optical broad emission lines of Mrk 590 have reappeared. The AGN optical continuum flux however, ... a nuclear gas outflow. The gas dynamics in Mrk 590 suggest a complex balance between gas inflow and ...
Tópico(s): Astrophysics and Star Formation Studies
2019 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
Zhiyuan Li, M. Vestergaard, Hayley Bignall, Cormac Reynolds, B. M. Peterson,
... the changing-look active galactic nucleus (AGN) of Mrk 590, and examine whether the radio power has faded ... connection, confirming that the changing-look behaviour in Mrk 590 originates from variable accretion rates rather than dust ...
Tópico(s): Pulsars and Gravitational Waves Research
2016 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
D Lawther, M. Vestergaard, S. I. Raimundo, Zhiyuan Li, B. M. Peterson, Xiaohui Fan, D. Grupe, Smita Mathur,
ABSTRACT Mrk 590 is a known changing-look active galactic nuclei (AGNs) which almost turned off in 2012, and then ...
Tópico(s): Gamma-ray bursts and supernovae
2022 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
A. L. Longinotti, S. Bianchi, M. Santos‐Lleó, P. M. Rodríguez-Pascual, M. Guainazzi, M. V. Cardaci, A. M. T. Pollock,
... simultaneous observation of the bright Seyfert 1 Galaxy Mrk 590, performed by XMM-Newton and Chandra.
Tópico(s): Galaxies: Formation, Evolution, Phenomena
2007 - EDP Sciences | Astronomy and Astrophysics
Anjali Gupta, Smita Mathur, Y. Krongold,
... ultra-fast outflows in the Seyfert~1 galaxy Mrk 590. These outflows are identified through highly blue-shifted ...
Tópico(s): Astrophysics and Star Formation Studies
2014 - IOP Publishing | The Astrophysical Journal
Ritesh Ghosh, Sibasish Laha, Kunal Deshmukh, V. Bhalerao, G. C. Dewangan, Ritaban Chatterjee,
... detected in the interesting changing-look AGN (CLAGN) Mrk~590 using two decades of multi-wavelength observations from \ ... describe the vanishing soft excess feature observed in Mrk~590.
Tópico(s): Pulsars and Gravitational Waves Research
2022 - IOP Publishing | The Astrophysical Journal
B. M. Peterson, I. Wanders, R. Bertram, James F. Hunley, Richard W. Pogge, R. M. Wagner,
... Mrk 79, Mrk 110, Mrk 335, Mrk 509, Mrk 590, Mrk 704, and Mrk 817. All objects show significant ...
Tópico(s): Scientific Measurement and Uncertainty Evaluation
1998 - IOP Publishing | The Astrophysical Journal
B. M. Peterson, B. Ali, K. Horne, R. Bertram, N. J. Lame, Richard W. Pogge, R. M. Wagner,
... and emission-line variability in the Seyfert galaxy Mrk 590 in order to determine the structure of the ...
Tópico(s): Stellar, planetary, and galactic studies
1993 - IOP Publishing | The Astrophysical Journal
G. J. Ferland, K. T. Korista, B. M. Peterson,
... quasars. We report observations of the Seyfert galaxy Mrk 590, which show dramatic changes in both the continuum ...
Tópico(s): Astrophysical Phenomena and Observations
1990 - IOP Publishing | The Astrophysical Journal
L. Slavcheva-Mihova, B. Mihov,
... and ring (Mrk 352), and nuclear dust lanes (Mrk 590). We compared the large-scale morphology and local ...
Tópico(s): Remote Sensing and LiDAR Applications
2010 - EDP Sciences | Astronomy and Astrophysics
L. Slavcheva‐Mihova, B. Mihov,
... and ring (Mrk 352), and nuclear dust lanes (Mrk 590). We compared the large-scale morphology and local ...
Tópico(s): Gamma-ray bursts and supernovae
2011 - EDP Sciences | Astronomy and Astrophysics
Amit Kumar Mandal, Malte Schramm, Suvendu Rakshit, C. S. Stalin, Bovornpratch Vijarnwannaluk, W. Rujopakarn, S. Poshyachinda, Vladimir Kouprianov, J. Haislip, D. Reichart, R. Sagar, Blesson Mathew,
... observations on the changing look active galactic nucleus Mrk 590 at z = 0.026. The observations were carried ...
Tópico(s): Plant Water Relations and Carbon Dynamics
2021 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
A. Orr, R. Walter, T. J. L. Courvoisier, H. H. Fink, F. Makino, Chiko Otani, W. Wamsteker,
... of 8 Seyfert 1 type AGN (Fairall-9, Mrk 590, NGC 4051, 3C 273, NGC 5548, Mrk 841, Q 1821+643 and 3C 390.3) ...
Tópico(s): History and Developments in Astronomy
1994 - Cambridge University Press | Symposium - International Astronomical Union
D Lawther, M. Vestergaard, S. I. Raimundo, Xiaohui Fan, Zhiyuan Li,
Tópico(s): Gamma-ray bursts and supernovae
2025 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
Ken Pounds, A. Lobban, J. N. Reeves, S. Vaughan,
... a Chandra grating observation of the Seyfert galaxy Mrk 590, finding evidence for velocities v ≈ 0.074 c ...
Tópico(s): Pulsars and Gravitational Waves Research
2016 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
Abstract The galaxy Mrk 590 is one of the few known ‘changing-look’ Active Galactic Nuclei (AGN) to have transitioned between states twice, having ...
Tópico(s): Astrophysics and Star Formation Studies
2019 - Cambridge University Press | Proceedings of the International Astronomical Union
Chang-Shuo Yan, Youjun Lu, Xinyu Dai, Qingjuan Yu,
... that the distinct optical-to-UV spectrum of Mrk 231 can be well interpreted as emission from accretion flows onto a BBH, with a semimajor axis of ∼590 AU and an orbital period of ∼1.2 ...
Tópico(s): Adaptive optics and wavefront sensing
2015 - IOP Publishing | The Astrophysical Journal
Andjelka B. Kovačević, Ting-Feng Yi, Xinyu Dai, Xing Yang, Iva Čvorović‐Hajdinjak, Luka Č. Popović,
... in the CRTS+ASAS-SN optical data set. Mrk 231 has been previously proposed as a SMBBH candidate with a highly unequal mass ratio (q~ 0.03), very tight mutual separation of ~590 AU, and an orbital period of ~1.2 yr. Hence, our result further supports, even though not prove, the intriguing hypothesis that SMBBHs with low mass ratios may be more common than close-equal mass SMBBHs. This result, however, was obtained from the contribution of CRTS data with limited sampling cadence and photometric accuracy, and further monitoring of Mrk 231 is crucial to confirm the periodicity.
Tópico(s): Plant Water Relations and Carbon Dynamics
2020 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
S. Komossa, D. Grupe, Luigi Gallo, Parker Poulos, D M Blue, Erin Kara, G. A. Kriss, A. L. Longinotti, M. L. Parker, D. R. Wilkins,
... that significant absorption or reprocessing is taking place. Mrk 335 displays a softer-when-brighter variability pattern at intermediate X-ray count rates, which has been seen in our Swift data since 2007 (based on a total of 590 observations). This pattern breaks down at the highest and lowest count rates. Conclusions. We interpret the 2020 brightening of Mrk 335 as a decrease in column density and ...
Tópico(s): Gamma-ray bursts and supernovae
2020 - EDP Sciences | Astronomy and Astrophysics
A. B. Peck, C. Henkel, J. S. Ulvestad, A. Brunthaler, H. Falcke, Moshe Elitzur, K. M. Menten, J. F. Gallimore,
... flaring H2O megamaser in the Seyfert 2 galaxy Mrk 348. The H2O line is redshifted by ~130 ...
Tópico(s): Galaxies: Formation, Evolution, Phenomena
2003 - IOP Publishing | The Astrophysical Journal
Produção Nacional
R. Cid Fernandes, R. Rodrigues Lacerda, Henrique R. Schmitt, Thaisa Storchi‐Bergmann,
We report the detection of a WR feature in the nuclear spectrum of the Seyfert 2 galaxy Mrk 1210. The growing list of WR/Seyfert galaxies strengthens the evidence for a connection between nuclear activity and star-formation.
Tópico(s): Stellar, planetary, and galactic studies
1999 - Cambridge University Press | Symposium - International Astronomical Union
Fr. A. Pompen, W. v. Maanen, J. Prinsen JLz, Ir. H. L. Vernhout, A. G. van Kranendonk, Willem van Doorn, E. Kruisinga, J. H. Kern, J. L. Cardozo, W. van der Gaaf, W. A. van Dongen, R. W. Zandvoort, C. J. van der Wey,
... von Dr. Rudolf Grossmann. — Hamburg, Friederichsen. 1920.— 18 Mrk. The Chapbook, A Monthly Miscellany. Published by the ... 1921. Vol. I. Wycliffe to Clarendon, pp. XV + 590 2 s. 6 d. Vol. II Milton to ...
Tópico(s): Historical and Literary Studies
1921 - Routledge | English Studies