Investigating the host galaxies of luminous AGN in the local universe with integral field spectroscopy

Paper


McElroy, Rebecca, Croom, Scott and Husemann, Bernd. 2017. "Investigating the host galaxies of luminous AGN in the local universe with integral field spectroscopy." 229th American Astronomical Society Meeting (AAS Meeting). Grapevine, Texas, United States 03 - 07 Jan 2017 United States.
Paper/Presentation Title

Investigating the host galaxies of luminous AGN in the local universe with integral field spectroscopy

Presentation TypePaper
AuthorsMcElroy, Rebecca, Croom, Scott and Husemann, Bernd
Journal Citation229
Article Number319.03
Year01 Jan 2017
Place of PublicationUnited States
Web Address (URL) of Paperhttps://ui.adsabs.harvard.edu/abs/2017AAS...22931903M/abstract
Conference/Event229th American Astronomical Society Meeting (AAS Meeting)
Event Details
229th American Astronomical Society Meeting (AAS Meeting)
Delivery
In person
Event Date
03 to end of 07 Jan 2017
Event Location
Grapevine, Texas, United States
Event Venue
Gaylord Texan Resort & Convention Center
Event Web Address (URL)
AbstractThis thesis investigates how galaxies and their super massive black holes coevolve. We use integral field spectroscopy to search for evidence of AGN feedback and triggering. We demonstrate that outflows are ubiquitous among luminous local type 2 AGN using observations from the AAT's SPIRAL instrument. Using multiple component Gaussian emission line decomposition we are able to disentangle the kinematic and ionisation properties of these winds. This allows us to argue that the outflows from these AGN are directly impacting the surrounding ISM within the galaxies. We search for evidence of AGN triggering using data from The Close AGN Reference Survey (CARS). CARS aims to provide a detailed multi-wavelength view of 40 nearby (0.01 < z < 0.06) unobscured AGN to study the link between AGN and their host galaxies. The primary CARS observations come from the MUSE integral field unit on the VLT, and complementary multi-wavelength observations have been approved from SOFIA, Chandra, VLA, HST, and others. We compare the stellar kinematics of active galaxies from CARS to similar inactive galaxies. We then use kinemetry to estimate the degree of dynamical disturbance, to determine whether active nuclei are preferentially hosted in dynamically disturbed or merging systems. Finally, we highlight the discovery of an AGN that has changed spectral type not once, but twice. So called ‘changing look’ AGN are an uncommon phenomenon, but twice changed AGN are much rarer. This AGN first transitioned from a narrow line AGN (type 2) to a broad line AGN (type 1) in the 1980s. It was recently observed as part of CARS. Examination of the MUSE data for this particular source showed that it no longer had the spectral features typical of a type 1 AGN. The continuum emission from the accretion disk was no longer visible and the broad lines were dramatically diminished. In this talk we describe the possible reasons for this change, supported by analysis of multi-epoch optical photometry and spectroscopy, alongside data obtained through director’s discretionary time from Chandra, HST, and the VLA. We then conclude by discussing the implications of this discovery on our understanding of AGN timescales and the physics behind AGN spectral types.
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020510102. Astronomical instrumentation
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Byline AffiliationsUniversity of Sydney
Max Planck Institute for Astronomy, Germany
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Krumpe, M., Husemann, B., Tremblay, G.R., Urrutia, T., Powell, M., Davis, T.A., Scharwächter, J., Dexter, J., Busch, G., Combes, F., Croom, S. M., Eckart, A., McElroy, R. E., Pérez-Torres, M. and Leung, G.. 2017. "The Close AGN Reference Survey (CARS). Mrk 1018 halts dimming and experiences strong short-term variability." Astronomy and Astrophysics: a European journal. 607. https://doi.org/10.1051/0004-6361/201731967
The SAMI Galaxy Survey: the low-redshift stellar mass Tully-Fisher relation
Bloom, J. V., Croom, S. M., Bryant, J. J., Callingham, J. R., Schaefer, A. L., Cortese, L., Hopkins, A. M., D'Eugenio, F., Scott, N., Glazebrook, K., Tonini, C., McElroy, R. E., Clark, H.A., Catinella, B., Allen, J.T., Bland-Hawthorn, J., Goodwin, M., Green, A.W., Konstantopoulos, I.S., ..., Sharp, R.. 2017. "The SAMI Galaxy Survey: the low-redshift stellar mass Tully-Fisher relation." Monthly Notices of the Royal Astronomical Society. 472 (2), pp. 1809-1824. https://doi.org/10.1093/mnras/stx1701
The Taipan Galaxy Survey: Scientific Goals and Observing Strategy
da Cunha, Elisabete, Hopkins, Andrew M., Colless, Matthew, Taylor, Edward N., Blake, Chris, Howlett, Cullan, Magoulas, Christina, Lucey, John R., Lagos, Claudia, Kuehn, Kyler, Gordon, Yjan, Barat, Dilyar, Bian, Fuyan, Wolf, Christian, Cowley, Michael J., White, Marc, Achitouv, Ixandra, Bilicki, Maciej, Bland-Hawthorn, Joss, ..., Watson, Fred. 2017. "The Taipan Galaxy Survey: Scientific Goals and Observing Strategy." Publications of the Astronomical Society of Australia. 34, pp. 1-28. https://doi.org/10.1017/pasa.2017.41
Host galaxies of luminous type II AGN: Winds, shocks, and comparisons to The SAMI Galaxy Survey
McElroy, Rebecca, Croom, Scott and Pracy, Michael. 2016. "Host galaxies of luminous type II AGN: Winds, shocks, and comparisons to The SAMI Galaxy Survey." 227th American Astronomical Society Meeting. Kissimmee, FL, United States 04 - 08 Jan 2016 United States.
The Close AGN Reference Survey (CARS). Mrk 1018 returns to the shadows after 30 years as a Seyfert 1
McElroy, R. E., Husemann, B., Croom, S., Davis, T.A., Bennert, V., Busch, G., Combes, F., Eckart, A., Pérez-Torres, M., Powell, M., Scharwächter, J., Tremblay, G.R. and Urrutia, T.. 2016. "The Close AGN Reference Survey (CARS). Mrk 1018 returns to the shadows after 30 years as a Seyfert 1." Astronomy and Astrophysics: a European journal. 593, p. L8. https://doi.org/10.1051/0004-6361/201629102
Catching a Changing Look Quasar as it undergoes significant changes in accretion rate
Krumpe, Mirko, Croom, Scott, Davis, Timothy Andrew, Husemann, Bernd, McElroy, Rebecca, Tremblay, Grant R. and Urrutia, Tanya. 2016. Catching a Changing Look Quasar as it undergoes significant changes in accretion rate.
The Close AGN Reference Survey (CARS). What is causing Mrk 1018's return to the shadows after 30 years?
Husemann, B., Urrutia, T., Tremblay, G.R., Krumpe, M., Dexter, J., Busch, G., Combes, F., Croom, S. M., Davis, T.A., Eckart, A., McElroy, R. E., Pérez-Torres, M., Powell, T.M. and Scharwächter, J.. 2016. "The Close AGN Reference Survey (CARS). What is causing Mrk 1018's return to the shadows after 30 years?" Astronomy and Astrophysics: a European journal. 593, p. L9. https://doi.org/10.1051/0004-6361/201629245
IFU observations of luminous type II AGN - I. Evidence for ubiquitous winds
McElroy, Rebecca, Croom, Scott M., Pracy, Michael, Sharp, Rob, Ho, I-Ting and Medling, Anne M.. 2015. "IFU observations of luminous type II AGN - I. Evidence for ubiquitous winds." Monthly Notices of the Royal Astronomical Society. 446 (2), pp. 2186-2204. https://doi.org/10.1093/mnras/stu2224
The SAMI Galaxy Survey: cubism and covariance, putting round pegs into square holes
Sharp, R., Allen, J. T., Fogarty, L. M. R., Croom, S. M., Cortese, L., Green, A. W., Nielsen, J., Richards, S. N., Scott, N., Taylor, E. N., Barnes, L. A., Barnes, A. E., Birchall, M., Bland-Hawthorn, J., Bloom, J. V., Brough, S., Bryant, J. J., Cecil, G. N., Colless, M., ..., Walcher, C. J.. 2015. "The SAMI Galaxy Survey: cubism and covariance, putting round pegs into square holes." Monthly Notices of the Royal Astronomical Society. 446 (2), pp. 1551-1566. https://doi.org/10.1093/mnras/stu2055
The SAMI Galaxy Survey: Early Data Release
Allen, J. T., Croom, S. M., Konstantopoulos, I. S., Bryant, J. J., Sharp, R., Cecil, G. N., Fogarty, L. M. R., Foster, C., Green, A. W., Ho, I. -T., Owers, M. S., Schaefer, A. L., Scott, N., Bauer, A. E., Baldry, I., Barnes, L. A., Bland-Hawthorn, J., Bloom, J. V., Brough, S., ..., Walcher, C. J.. 2015. "The SAMI Galaxy Survey: Early Data Release." Monthly Notices of the Royal Astronomical Society. 446 (2), pp. 1567-1583. https://doi.org/10.1093/mnras/stu2057
The SAMI Galaxy Survey: instrument specification and target selection
Bryant, J. J., Owers, M. S., Robotham, A. S. G., Croom, S. M., Driver, S. P., Drinkwater, M. J., Lorente, N. P. F., Cortese, L., Scott, N., Colless, M., Schaefer, A., Taylor, E. N., Konstantopoulos, I. S., Allen, J. T., Baldry, I., Barnes, L., Bauer, A. E., Bland-Hawthorn, J., Bloom, J. V., ..., Walcher, C. J.. 2015. "The SAMI Galaxy Survey: instrument specification and target selection." Monthly Notices of the Royal Astronomical Society. 447 (3), pp. 2857-2879. https://doi.org/10.1093/mnras/stu2635
VizieR Online Data Catalog: SAMI Galaxy Survey: EDR (Allen+, 2015)
Allen, J. T., Croom, S. M., Konstantopoulos, I. S., Bryant, J. J., Sharp, R., Cecil, G. N., Fogarty, L. M. R., Foster, C., Green, A. W., Ho, I. -T., Owers, M. S., Schaefer, A. L., Scott, N., Bauer, A. E., Baldry, I., Barnes, L. A., Bland-Hawthorn, J., Bloom, J. V., Brough, S., ..., Walcher, C. J.. 2015. VizieR Online Data Catalog: SAMI Galaxy Survey: EDR (Allen+, 2015) .
The 6dF Galaxy Survey: Final redshift release (DR3) and southern large-scale structures
Heath Jones, D., Read, Mike A., Saunders, Will, Colless, Matthew, Jarrett, Tom, Parker, Quentin A., Fairall, Anthony P., Mauch, Thomas, Sadler, Elaine M., Watson, Fred G., Burton, Donna, Campbell, Lachlan A., Cass, Paul, Croom, Scott M., Dawe, John, Fiegert, Kristin, Frankcombe, Leela, Hartley, Malcolm, Huchra, John, ..., Williams, Mary. 2009. "The 6dF Galaxy Survey: Final redshift release (DR3) and southern large-scale structures." Monthly Notices of the Royal Astronomical Society. 399 (2), pp. 683-698. https://doi.org/10.1111/j.1365-2966.2009.15338.x