Mapping Electron Temperature Variations across a Spiral Arm in NGC 1672

Article

Ho, I.-Ting, Kreckel, Kathryn, Meidt, Sharon E., Groves, Brent, Blanc, Guillermo A., Bigiel, Frank, Dale, Daniel A., Emsellem, Eric, Glover, Simon C. O., Grasha, Kathryn, Kewley, Lisa J., Kruijssen, J. M. Diederik, Lang, Philipp, McElroy, Rebecca, Kudritzki, Rolf-Peter, Sanchez-Blazquez, Patricia, Sandstrom, Karin, Santoro, Francesco, Schinnerer, Eva and Schruba, Andreas. 2019. "Mapping Electron Temperature Variations across a Spiral Arm in NGC 1672." The Astrophysical Journal: an international review of astronomy and astronomical physics. 885. https://doi.org/10.3847/2041-8213/ab4feb
Article Title

Mapping Electron Temperature Variations across a Spiral Arm in NGC 1672

ERA Journal ID1057
Article CategoryArticle
AuthorsHo, I.-Ting, Kreckel, Kathryn, Meidt, Sharon E., Groves, Brent, Blanc, Guillermo A., Bigiel, Frank, Dale, Daniel A., Emsellem, Eric, Glover, Simon C. O., Grasha, Kathryn, Kewley, Lisa J., Kruijssen, J. M. Diederik, Lang, Philipp, McElroy, Rebecca, Kudritzki, Rolf-Peter, Sanchez-Blazquez, Patricia, Sandstrom, Karin, Santoro, Francesco, Schinnerer, Eva and Schruba, Andreas
Journal TitleThe Astrophysical Journal: an international review of astronomy and astronomical physics
Journal Citation885
Article NumberL31
Number of Pages7
Year2019
PublisherIOP Publishing
Place of PublicationUnited States
ISSN0004-637X
1538-4357
Digital Object Identifier (DOI)https://doi.org/10.3847/2041-8213/ab4feb
Web Address (URL)https://iopscience.iop.org/article/10.3847/2041-8213/ab4feb
AbstractWe report one of the first extragalactic observations of electron temperature variations across a spiral arm. Using Multi Unit Spectroscopic Explorer mosaic observations of the nearby galaxy NGC 1672, we measure the [N ii]λ5755 auroral line in a sample of 80 H ii regions in the eastern spiral arm of NGC 1672. We discover systematic temperature variations as a function of distance perpendicular to the spiral arm. The electron temperature is lowest on the spiral arm itself and highest on the downstream side. Photoionization models of different metallicity, pressure, and age of the ionizing source are explored to understand what properties of the interstellar medium drive the observed temperature variations. An azimuthally varying metallicity appears to be the most likely cause of the temperature variations. The electron temperature measurements solidify recent discoveries of azimuthal variations of oxygen abundance based on strong lines, and rule out the possibility that the abundance variations are artifacts of the strong-line calibrations.
KeywordsInterstellar medium; H II regions; Spiral arms; Spiral galaxies; Chemical abundances; Interstellar abundances
Contains Sensitive ContentDoes not contain sensitive content
ANZSRC Field of Research 2020510102. Astronomical instrumentation
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Byline AffiliationsMax Planck Institute for Astronomy, Germany
Heidelberg University, Germany
University of Gent, Belgium
University of Western Australia
Australian National University
Carnegie Institution for Science, United States
University of Chile, Chile
University of Bonn, Germany
Aarhus University, Denmark
European Southern Observatory (ESO), Germany
University of Lyon, France
University of Hawaii, United States
Munich University Observatory, Germany
Autonomous University of Madrid, Spain
University of California San Diego, United States
Max Planck Institute for Extraterrestrial Physics, Germany
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ZFIRE: 3D Modeling of Rotation, Dispersion, and Angular Momentum of Star-forming Galaxies at z∼2
Alcorn, Leo Y., Tran, Kim-Vy, Glazebrook, Karl, Straatman, Caroline M., Cowley, Michael, Forrest, Ben, Kacprzak, Glenn G., Kewley, Lisa J., Labbé, Ivo, Nanayakkara, Themiya, Spitler, Lee R., Tomczak, Adam and Yuan, Tiantian. 2018. "ZFIRE: 3D Modeling of Rotation, Dispersion, and Angular Momentum of Star-forming Galaxies at z∼2." The Astrophysical Journal: an international review of astronomy and astronomical physics. 858 (1), pp. 1-18. https://doi.org/10.3847/1538-4357/aaba78
Active galaxies in the local Universe: Feedback, variability, and triggering
McElroy, Rebecca. 2017. Active galaxies in the local Universe: Feedback, variability, and triggering. PhD Thesis Doctor of Philosophy. University of Sydney.
The SAMI Galaxy Survey: Revisiting Galaxy Classification through High-order Stellar Kinematics
van de Sande, Jesse, Bland-Hawthorn, J., Fogarty, Lisa M. R., Cortese, Luca, d'Eugenio, Francesco, Croom, Scott M., Scott, Nicholas, Allen, James T., Brough, Sarah, Bryant, Julia J., Cecil, Gerald, Colless, Matthew, Couch, Warrick J., Davies, Roger, Elahi, Pascal J., Foster, Caroline, Goldstein, Gregory, Goodwin, Michael, Groves, Brent, ..., Yi, Sukyoung K.. 2017. "The SAMI Galaxy Survey: Revisiting Galaxy Classification through High-order Stellar Kinematics." The Astrophysical Journal: an international review of astronomy and astronomical physics. 835 (1). https://doi.org/10.3847/1538-4357/835/1/104
Investigating the host galaxies of luminous AGN in the local universe with integral field spectroscopy
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.
The SAMI Galaxy Survey revisiting Galaxy classification through high-order stellar kinematics. (2017)
van de Sande, Jesse, Bland-Hawthorn, J., Fogarty, Lisa M. R., Cortese, Luca, d'Eugenio, Francesco, Croom, Scott M., Scott, Nicholas, Allen, James T., Brough, Sarah, Bryant, Julia J., Cecil, Gerald, Colless, Matthew, Couch, Warrick J., Davies, Roger, Elahi, Pascal J., Foster, Caroline, Goldstein, Gregory, Goodwin, Michael, Groves, Brent, ..., Yi, Sukyoung K.. 2017. The SAMI Galaxy Survey revisiting Galaxy classification through high-order stellar kinematics. (2017) . https://doi.org/10.26093/cds/vizier.18350104
The Close AGN Reference Survey (CARS)
Husemann, Bernd, Tremblay, Grant, Davis, Timothy, Busch, Gerold, McElroy, Rebecca, Neumann, Justus, Urrutia, Tanya, Krumpe, Mirko, Scharwächter, Julia, Powell, Meredith, Pérez-Torres, Miguel Perez-Torres and CARS Team. 2017. "The Close AGN Reference Survey (CARS)." The Messenger. 169, pp. 42-47. https://doi.org/10.18727/0722-6691/5038
Using an artificial neural network to classify multicomponent emission lines with integral field spectroscopy from SAMI and S7
Hampton, E. J., Medling, A. M., Groves, B., Kewley, L., Dopita, M., Davies, R., Ho, I. -T., Kaasinen, M., Leslie, S., Sharp, R., Sweet, S. M., Thomas, A. D., Allen, J., Bland-Hawthorn, J., Brough, S., Bryant, J. J., Croom, S., Goodwin, M., Green, A., ..., Shastri, P.. 2017. "Using an artificial neural network to classify multicomponent emission lines with integral field spectroscopy from SAMI and S7." Monthly Notices of the Royal Astronomical Society. 470 (3), pp. 3395-3416. https://doi.org/10.1093/mnras/stx1413
The Close AGN Reference Survey (CARS). Mrk 1018 halts dimming and experiences strong short-term variability
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
Zfire: Similar stellar growth in hα-emitting cluster and field galaxies at z ∼ 2
Tran, Kim-Vy H., Alcorn, Leo Y., Kacprzak, Glenn G., Nanayakkara, Themiya, Straatman, Caroline, Yuan, Tiantian, Cowley, Michael, Davé, Romeel, Glazebrook, Karl, Kewley, Lisa J., Labbé, Ivo, Martizzi, Davidé, Papovich, Casey, Quadri, Ryan, Spitler, Lee R. and Tomczak, Adam. 2017. "Zfire: Similar stellar growth in hα-emitting cluster and field galaxies at z ∼ 2." The Astrophysical Journal: an international review of astronomy and astronomical physics. 834 (2), pp. 1-14. https://doi.org/10.3847/1538-4357/834/2/101
ZFIRE: The Evolution of the Stellar Mass Tully–Fisher Relation to Redshift ∼2.2
Straatman, Caroline M. S., Glazebrook, Karl, Kacprzak, Glenn G., Labbé, Ivo, Nanayakkara, Themiya, Alcorn, Leo, Cowley, Michael, Kewley, Lisa J., Spitler, Lee R., Tran, Kim-Vy H. and Yuan, Tiantian. 2017. "ZFIRE: The Evolution of the Stellar Mass Tully–Fisher Relation to Redshift ∼2.2." The Astrophysical Journal: an international review of astronomy and astronomical physics. 839 (1), pp. 1-20. https://doi.org/10.3847/1538-4357/aa643e
ZFIRE: using Hα equivalent widths to investigate the in situ initial mass function at z ∼ 2
Nanayakkara, Themiya, Glazebrook, Karl, Kacprzak, Glenn G., Yuan, Tiantian, Fisher, David, Tran, Kim-Vy, Kewley, Lisa J., Spitler, Lee, Alcorn, Lee, Cowley, Michael, Labbe, Ivo, Straatman, Caroline and Tomczak, Adam. 2017. "ZFIRE: using Hα equivalent widths to investigate the in situ initial mass function at z ∼ 2." Monthly Notices of the Royal Astronomical Society. 468 (3), pp. 3071-3108. https://doi.org/10.1093/mnras/stx605
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
Z-FIRE: ISM Properties of the z = 2.095 Cosmos Cluster
Kewley, Lisa J., Yuan, Tiantian, Nanayakkara, Themiya, Kacprzak, Glenn G., Tran, Kim-Vy H., Glazebrook, Karl, Spitler, Lee, Cowley, Michael, Dopita, Michael, Straatman, Caroline, Labbé, Ivo and Tomczak, Adam. 2016. "Z-FIRE: ISM Properties of the z = 2.095 Cosmos Cluster." The Astrophysical Journal: an international review of astronomy and astronomical physics. 819 (2), pp. 1-10. https://doi.org/10.3847/0004-637X/819/2/100
ZFIRE: The kinematics of star-forming galaxies as a function of environment at z ∼ 2
Alcorn, Leo Y., Tran, Kim-Vy H., Kacprzak, Glenn G., Nanayakkara, Themiya, Straatman, Caroline, Yuan, Tiantian, Allen, Rebecca J., Cowley, Michael, Davé, Romeel, Glazebrook, Karl, Kewley, Lisa J., Labbé, Ivo, Quadri, Ryan, Spitler, Lee R. and Tomczak, Adam. 2016. "ZFIRE: The kinematics of star-forming galaxies as a function of environment at z ∼ 2." The Astrophysical Journal Letters. 825 (1), pp. 1-6. https://doi.org/10.3847/2041-8205/825/1/L2
ZFIRE: A Keck/Mosfire Spectroscopic Survey of Galaxies in Rich Environments at z ∼ 2
Nanayakkara, Themiya, Glazebrook, Karl, Kacprzak, Glenn G., Yuan, Tiantian, Tran, Kim-Vy, Spitler, Lee, Kewley, Lisa, Straatman, Caroline, Cowley, Michael, Fisher, David, Labbe, Ivo, Tomczak, Adam, Allen, Rebecca and Alcorn, Leo. 2016. "ZFIRE: A Keck/Mosfire Spectroscopic Survey of Galaxies in Rich Environments at z ∼ 2." The Astrophysical Journal: an international review of astronomy and astronomical physics. 828 (1), pp. 1-26. https://doi.org/10.3847/0004-637X/828/1/21
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) . University of Southern Queensland. https://doi.org/10.26192/z75x4
Spectroscopic observations of sn 2012fr: A luminous, normal type Ia supernova with early high-velocity features and a late velocity plateau
Childress, M.J., Scalzo, R.A., Sim, S.A., Tucker, B.E., Yuan, F., Schmidt, B.P., Cenko, S.B., Silverman, J.M., Contreras, C., Hsiao, E.Y., Phillips, M., Morrell, N., Jha, S.W., McCully, C., Filippenko, A.V., Anderson, J.P., Benetti, S., Bufano, F., de Jaeger, T., ..., Zhou, G.. 2013. "Spectroscopic observations of sn 2012fr: A luminous, normal type Ia supernova with early high-velocity features and a late velocity plateau." The Astrophysical Journal: an international review of astronomy and astronomical physics. 770 (1), pp. 1-20. https://doi.org/10.1093/mnras/stt813