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The Phoenix galaxy as seen by NuSTAR

Masini, A. and Comastri, A. and Puccetti, S. and Baloković, M. and Gandhi, P. and Guainazzi, M. and Bauer, F. E. and Boggs, S. E. and Boorman, P. G. and Brightman, M. and Christensen, F. E. and Craig, W. W. and Farrah, D. and Hailey, C. J. and Harrison, F. A. and Koss, M. J. and LaMassa, S. M. and Ricci, C. and Stern, D. and Walton, D. J. and Zhang, W. W. (2017) The Phoenix galaxy as seen by NuSTAR. Astronomy and Astrophysics, 597 . Art. No. A100. ISSN 0004-6361.

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Aims. We study the long-term variability of the well-known Seyfert 2 galaxy Mrk 1210 (also known as UGC 4203, or the Phoenix galaxy). Methods. The source was observed by many X-ray facilities in the last 20 yr. Here we present a NuSTAR observation and put the results in the context of previously published observations. Results. NuSTAR observed Mrk 1210 in 2012 for 15.4 ks. The source showed Compton-thin obscuration similar to that observed by Chandra, Suzaku, BeppoSAX and XMM-Newton over the past two decades, but different from the first observation by ASCA in 1995, in which the active nucleus was caught in a low flux state or was obscured by Compton-thick matter with a reflection-dominated spectrum. Thanks to the high-quality hard X-ray spectrum obtained with NuSTAR and exploiting the long-term spectral coverage spanning 16.9 yr, we can precisely disentangle the transmission and reflection components and put constraints on both the intrinsic long-term variability and hidden nucleus scenarios. In the former case, the distance between the reflector and the source must be at least ~2 pc, while in the latter the eclipsing cloud may be identified with a water maser-emitting clump.

Item Type:Article
Related URLs:
URLURL TypeDescription
Masini, A.0000-0002-7100-9366
Comastri, A.0000-0003-3451-9970
Puccetti, S.0000-0002-2734-7835
Baloković, M.0000-0003-0476-6647
Gandhi, P.0000-0003-3105-2615
Bauer, F. E.0000-0002-8686-8737
Boggs, S. E.0000-0001-9567-4224
Boorman, P. G.0000-0001-9379-4716
Brightman, M.0000-0002-8147-2602
Christensen, F. E.0000-0001-5679-1946
Farrah, D.0000-0003-1748-2010
Harrison, F. A.0000-0003-2992-8024
Koss, M. J.0000-0002-7998-9581
LaMassa, S. M.0000-0002-5907-3330
Ricci, C.0000-0001-5231-2645
Stern, D.0000-0003-2686-9241
Walton, D. J.0000-0001-5819-3552
Zhang, W. W.0000-0002-1426-9698
Additional Information:© ESO, 2017. Received: 1 August 2016. Accepted: 1 September 2016. Published online 11 January 2017. We thank the anonymous referee for useful suggestions that helped to improve the paper. This work was supported under NASA Contract NNG08FD60C, and it made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations, Software, and Calibration teams for support with the execution and analysis of these observations. This research made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). This research has also made use of data obtained from the Chandra Data Archive and the Chandra Source Catalog, and software provided by the Chandra X-ray Center (CXC). A.M., A.C., and S.P. acknowledge support from the ASI/INAF grant I/037/12/0-011/13. M.B. acknowledges support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program, grant NNX14AQ07H. P.G. and P.B. thank STFC for support (grant ST/J003697/2). S.L.M. is supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center, administered by Universities Space Research Association under contract with NASA. We acknowledge support from NASA NuSTAR A01 Award NNX15AV27G (F.E.B.), CONICYT-Chile grants Basal-CATA PFB-06/2007 (F.E.B., C.R.), FONDECYT Regular 1141218 (F.E.B., C.R.), “EMBIGGEN” Anillo ACT1101 (F.E.B., C.R.), the China-CONICYT fund (C.R.), and the Ministry of Economy, Development, and Tourism’s Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS (F.E.B.).
Group:NuSTAR, Space Radiation Laboratory, Astronomy Department
Funding AgencyGrant Number
Agenzia Spaziale Italiana (ASI)I/037/12/0-011/13
Istituto Nazionale di Astrofisica (INAF)UNSPECIFIED
NASA Earth and Space Science FellowshipNNX14AQ07H
Science and Technology Facilities Council (STFC)ST/J003697/2
NASA Postdoctoral ProgramUNSPECIFIED
Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT)1141218
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)Anillo ACT1101
Iniciativa Científica Milenio del Ministerio de Economía, Fomento y TurismoIC120009
Subject Keywords:galaxies: active / galaxies: Seyfert / X-rays: galaxies
Record Number:CaltechAUTHORS:20170310-121538992
Persistent URL:
Official Citation:The Phoenix galaxy as seen by NuSTAR A. Masini, A. Comastri, S. Puccetti, M. Baloković, P. Gandhi, M. Guainazzi, F. E. Bauer, S. E. Boggs, P. G. Boorman, M. Brightman, F. E. Christensen, W. W. Craig, D. Farrah, C. J. Hailey, F. A. Harrison, M. J. Koss, S. M. LaMassa, C. Ricci, D. Stern, D. J. Walton and W. W. Zhang A&A, 597 (2017) A100 DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75028
Deposited By: George Porter
Deposited On:10 Mar 2017 20:56
Last Modified:15 Nov 2019 05:03

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