Solar Active Region Heating Diagnostics from High-temperature Emission Using the MaGIXS

P. S. Athiray, Amy R. Winebarger, Will T. Barnes, Stephen J. Bradshaw, Sabrina Savage, Harry P. Warren, Ken Kobayashi, Patrick Champey, Leon Golub, Lindsay Glesener

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Abstract

The relative amount of high-temperature plasma has been found to be a useful diagnostic to determine the frequency of coronal heating on sub-resolution structures. When the loops are infrequently heated, a broad emission measure (EM) over a wider range of temperatures is expected. A narrower EM is expected for high-frequency heating where the loops are closer to equilibrium. The soft X-ray spectrum contains many spectral lines that provide high-temperature diagnostics, including lines from Fe xvii-xix. This region of the solar spectrum will be observed by the Marshall Grazing Incidence Spectrometer (MaGIXS) in 2020. In this paper, we derive the expected spectral line intensity in MaGIXS to varying amounts of high-temperature plasma to demonstrate that a simple line ratio provides a powerful diagnostic to determine the heating frequency. Similarly, we examine ratios of AIA channel intensities, filter ratios from a XRT, and energy bands from the FOXSI sounding rocket to determine their sensitivity to this parameter. We find that both FOXSI and MaGIXS provide good diagnostic capabilities for high-temperature plasma. We then compare the predicted line ratios to the output of a numerical model and confirm that the MaGIXS ratios provide an excellent diagnostic for heating frequency.

Original languageEnglish (US)
Article number24
JournalAstrophysical Journal
Volume884
Issue number1
DOIs
StatePublished - Oct 10 2019

Bibliographical note

Funding Information:
P. S. Athiray Amy R. Winebarger Will T. Barnes Stephen J. Bradshaw Sabrina Savage Harry P. Warren Ken Kobayashi Patrick Champey Leon Golub Lindsay Glesener P. S. Athiray Amy R. Winebarger Will T. Barnes Stephen J. Bradshaw Sabrina Savage Harry P. Warren Ken Kobayashi Patrick Champey Leon Golub Lindsay Glesener NASA Postdoctoral Program, NASA Marshall Space Flight Center, ST13, Huntsville, AL 35812, USA Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304, USA Bay Area Environmental Research Institute, Moffett Field, CA 94952, USA Department of Physics & Astronomy, Rice University, Houston, TX 77251, USA Space Science Division, Naval Research Laboratory, Washington, DC 20375, USA Smithsonian Astrophysical Observatory, Cambridge, MA 02138, USA School of Physics and Astronomy, University of Minnesota, USA P. S. Athiray, Amy R. Winebarger, Will T. Barnes, Stephen J. Bradshaw, Sabrina Savage, Harry P. Warren, Ken Kobayashi, Patrick Champey, Leon Golub and Lindsay Glesener 2019-10-10 2019-10-08 17:43:01 cgi/release: Article released bin/incoming: New from .zip yes The relative amount of high-temperature plasma has been found to be a useful diagnostic to determine the frequency of coronal heating on sub-resolution structures. When the loops are infrequently heated, a broad emission measure (EM) over a wider range of temperatures is expected. A narrower EM is expected for high-frequency heating where the loops are closer to equilibrium. The soft X-ray spectrum contains many spectral lines that provide high-temperature diagnostics, including lines from Fe xvii – xix . This region of the solar spectrum will be observed by the Marshall Grazing Incidence Spectrometer ( MaGIXS ) in 2020. In this paper, we derive the expected spectral line intensity in MaGIXS to varying amounts of high-temperature plasma to demonstrate that a simple line ratio provides a powerful diagnostic to determine the heating frequency. Similarly, we examine ratios of AIA channel intensities, filter ratios from a XRT, and energy bands from the FOXSI sounding rocket to determine their sensitivity to this parameter. We find that both FOXSI and MaGIXS provide good diagnostic capabilities for high-temperature plasma. We then compare the predicted line ratios to the output of a numerical model and confirm that the MaGIXS ratios provide an excellent diagnostic for heating frequency. � 2019. The American Astronomical Society. All rights reserved. Asgari-Targhi M. and van Ballegooijen A. A. 2012 ApJ 746 81 10.1088/0004-637X/746/1/81 Asgari-Targhi M. and van Ballegooijen A. A. ApJ 0004-637X 746 1 81 2012 81 Athiray P. S., Buitrago-Casas J. C., Bergstedt K. et al 2017 Proc. SPIE 10397 103970A 10.1117/12.2273915 Athiray P. S., Buitrago-Casas J. C., Bergstedt K. et al Proc. SPIE 10397 103970A 2017 Athiray P. S., Vievering J., Glesener L. et al 2019 ApJ submitted Athiray P. S., Vievering J., Glesener L. et al ApJ 2019 Barnes W. T., Cargill P. J. and Bradshaw S. J. 2016a ApJ 829 31 10.3847/0004-637X/829/1/31 Barnes W. T., Cargill P. J. and Bradshaw S. J. ApJ 0004-637X 829 1 31 2016 31 Barnes W. T., Cargill P. J. and Bradshaw S. J. 2016b ApJ 833 217 10.3847/1538-4357/833/2/217 Barnes W. T., Cargill P. J. and Bradshaw S. J. ApJ 0004-637X 833 2 217 2016 217 Boerner P. F., Testa P., Warren H., Weber M. A. and Schrijver C. J. 2014 SoPh 289 2377 10.1007/s11207-013-0452-z Boerner P. F., Testa P., Warren H., Weber M. A. and Schrijver C. J. SoPh 289 2014 2377 Bradshaw S. J., Klimchuk J. A. and Reep J. W. 2012 ApJ 758 53 10.1088/0004-637X/758/1/53 Bradshaw S. J., Klimchuk J. A. and Reep J. W. ApJ 0004-637X 758 1 53 2012 53 Brooks D. H., Warren H. P. and Ugarte-Urra I. 2012 ApJL 755 L33 10.1088/2041-8205/755/2/L33 Brooks D. H., Warren H. P. and Ugarte-Urra I. ApJL 0004-637X 755 2012 L33 Brooks D. H., Warren H. P., Ugarte-Urra I. and Winebarger A. R. 2013 ApJL 772 L19 10.1088/2041-8205/772/2/L19 Brooks D. H., Warren H. P., Ugarte-Urra I. and Winebarger A. R. ApJL 0004-637X 772 2013 L19 Brosius J. W., Daw A. N. and Rabin D. M. 2014 ApJ 790 112 10.1088/0004-637X/790/2/112 Brosius J. W., Daw A. N. and Rabin D. M. ApJ 0004-637X 790 2 112 2014 112 Cargill P. J. 2014 ApJ 784 49 10.1088/0004-637X/784/1/49 Cargill P. J. ApJ 0004-637X 784 1 49 2014 49 Cargill P. J., Bradshaw S. J. and Klimchuk J. A. 2012 ApJ 752 161 10.1088/0004-637X/752/2/161 Cargill P. J., Bradshaw S. J. and Klimchuk J. A. ApJ 0004-637X 752 2 161 2012 161 Champey P., Winebarger A. R., Athiray P. S. et al 2019 Proc. SPIE 11119 111197 10.1117/12.2532397 Champey P., Winebarger A. R., Athiray P. S. et al Proc. SPIE 11119 111197 2019 Champey P., Winebarger A., Kobayashi K. et al 2016 Proc. SPIE 9905 990573 10.1117/12.2232820 Champey P., Winebarger A., Kobayashi K. et al Proc. SPIE 9905 990573 2016 Cheung M. C. M., Boerner P., Schrijver C. J. et al 2015 ApJ 807 143 10.1088/0004-637X/807/2/143 Cheung M. C. M., Boerner P., Schrijver C. J. et al ApJ 0004-637X 807 2 143 2015 143 Christe S., Glesener L., Buitrago-Casas C. et al 2016 JAI 5 1640005 10.1142/S2251171716400055 Christe S., Glesener L., Buitrago-Casas C. et al JAI 5 1640005 2016 Del Zanna G. 2013 A&A 558 A73 10.1051/0004-6361/201321653 Del Zanna G. A&A 0004-6361 558 2013 A73 Del Zanna G., Dere K. P., Young P. R., Landi E. and Mason H. E. 2015a A&A 582 A56 10.1051/0004-6361/201526827 Del Zanna G., Dere K. P., Young P. R., Landi E. and Mason H. E. A&A 0004-6361 582 2015 A56 Del Zanna G., Tripathi D., Mason H., Subramanian S. and O’Dwyer B. 2015b A&A 573 A104 10.1051/0004-6361/201424561 Del Zanna G., Tripathi D., Mason H., Subramanian S. and O’Dwyer B. A&A 0004-6361 573 2015 A104 Edlen B. 1942 ZA 22 30 10.1007/BF01488890 Edlen B. ZA 22 1942 30 Freeland S. L. and Handy B. N. 1998 SoPh 182 497 10.1023/A:1005038224881 Freeland S. L. and Handy B. N. SoPh 182 1998 497 Glesener L., Krucker S., Christe S. et al 2016 Proc. SPIE 9905 99050E 10.1117/12.2232262 Glesener L., Krucker S., Christe S. et al Proc. SPIE 9905 99050E 2016 Golub L., Deluca E., Austin G. et al 2007 SoPh 243 63 10.1007/s11207-007-0182-1 Golub L., Deluca E., Austin G. et al SoPh 243 2007 63 Grotrian W. 1939 NW 27 214 Grotrian W. NW 27 1939 214 Gubarev M., Ramsey B., Kolodziejczak J. J. et al 2014 Proc. SPIE 9144 91444U 10.1117/12.2056595 Gubarev M., Ramsey B., Kolodziejczak J. J. et al Proc. SPIE 9144 91444U 2014 Gubarev M., Ramsey B., O’Dell S. L. et al 2013 Proc. SPIE 8861 88610K 10.1117/12.2027141 Gubarev M., Ramsey B., O’Dell S. L. et al Proc. SPIE 8861 88610K 2013 Hannah I. G. and Kontar E. P. 2012 A&A 539 A146 10.1051/0004-6361/201117576 Hannah I. G. and Kontar E. P. A&A 0004-6361 539 2012 A146 Hunter J. D. 2007 CSE 9 90 10.1109/MCSE.2007.55 Hunter J. D. CSE 1070-8413 9 2007 90 Ishikawa S.-N. and Krucker S. 2019 ApJ 876 111 10.3847/1538-4357/ab13a1 Ishikawa S.-N. and Krucker S. ApJ 0004-637X 876 2 111 2019 111 Ishikawa S., Saito S., Tajima H. et al 2011 ITNS 58 2039 10.1109/TNS.2011.2154342 Ishikawa S., Saito S., Tajima H. et al ITNS 58 2011 2039 Ishikawa S.-n., Glesener L., Krucker S. et al 2017 NatAs 1 771 10.1038/s41550-017-0269-z Ishikawa S.-n., Glesener L., Krucker S. et al NatAs 1 2017 771 Jones E., Oliphant T. and Peterson P. 2001 SciPy: Open Source Scientific Tools for Python Jones E., Oliphant T. and Peterson P. SciPy: Open Source Scientific Tools for Python 2001 Klimchuk J. A. 2009 ASP Conf. Ser. 415 ed B. Lites et al (San Francisco, CA: ASP) 221 Klimchuk J. A. ed Lites B. et al ASP Conf. Ser. 415 2009 221 Klimchuk J. A., Patsourakos S. and Cargill P. J. 2008 ApJ 682 1351 10.1086/589426 Klimchuk J. A., Patsourakos S. and Cargill P. J. ApJ 0004-637X 682 2 1351 2008 1351 Kobayashi K., Cirtain J., Golub L. et al 2010 Proc. SPIE 7732 773233 10.1117/12.856793 Kobayashi K., Cirtain J., Golub L. et al Proc. SPIE 7732 773233 2010 Kobayashi K., Winebarger A. R., Savage S. et al 2018 Proc. SPIE 10699 1069927 10.1117/12.2313997 Kobayashi K., Winebarger A. R., Savage S. et al Proc. SPIE 10699 1069927 2018 Kobelski A. R., McKenzie D. E. and Donachie M. 2014a ApJ 786 82 10.1088/0004-637X/786/2/82 Kobelski A. R., McKenzie D. E. and Donachie M. ApJ 0004-637X 786 2 82 2014 82 Kobelski A. R., Saar S. H., Weber M. A., McKenzie D. E. and Reeves K. K. 2014b SoPh 289 2781 10.1007/s11207-014-0487-9 Kobelski A. R., Saar S. H., Weber M. A., McKenzie D. E. and Reeves K. K. SoPh 289 2014 2781 Krivonos R., Tkachenko A., Burenin R. et al 2017 ExA 44 147 10.1007/s10686-017-9555-0 Krivonos R., Tkachenko A., Burenin R. et al ExA 1382-0176 44 2017 147 Krucker S., Christe S., Glesener L. et al 2009 Proc. SPIE 7437 743705 10.1117/12.827950 Krucker S., Christe S., Glesener L. et al Proc. SPIE 7437 743705 2009 Krucker S., Christe S., Glesener L. et al 2011 Proc. SPIE 8147 814705 10.1117/12.895271 Krucker S., Christe S., Glesener L. et al Proc. SPIE 8147 814705 2011 Krucker S., Christe S., Glesener L. et al 2013 Proc. SPIE 8862 88620R 10.1117/12.2024277 Krucker S., Christe S., Glesener L. et al Proc. SPIE 8862 88620R 2013 Krucker S., Christe S., Glesener L. et al 2014 ApJL 793 L32 10.1088/2041-8205/793/2/L32 Krucker S., Christe S., Glesener L. et al ApJL 0004-637X 793 2014 L32 Lemen J. R., Title A. M., Akin D. J. et al 2012 SoPh 275 17 10.1007/s11207-011-9776-8 Lemen J. R., Title A. M., Akin D. J. et al SoPh 275 2012 17 López Fuentes M. C. and Klimchuk J. A. 2010 ApJ 719 591 10.1088/0004-637X/719/1/591 López Fuentes M. C. and Klimchuk J. A. ApJ 0004-637X 719 1 591 2010 591 O’Dell S. L., Baldini L., Bellazzini R. et al 2018 Proc. SPIE 10699 106991X 10.1117/12.2314146 O’Dell S. L., Baldini L., Bellazzini R. et al Proc. SPIE 10699 106991X 2018 O’Dwyer B., Del Zanna G., Mason H. E., Weber M. A. and Tripathi D. 2010 A&A 521 A21 10.1051/0004-6361/201014872 O’Dwyer B., Del Zanna G., Mason H. E., Weber M. A. and Tripathi D. A&A 0004-6361 521 2010 A21 Oliphant T. 2006 A Guide to Numpy (USA: Trelgol Publishing) Oliphant T. A Guide to Numpy 2006 Parker E. N. 1983a ApJ 264 642 10.1086/160637 Parker E. N. ApJ 264 1983 642 Parker E. N. 1983b ApJ 264 635 10.1086/160636 Parker E. N. ApJ 264 1983 635 Pérez F. and Granger B. E. 2007 CSE 9 21 Pérez F. and Granger B. E. CSE 1070-8413 9 2007 21 Pesnell W. D., Thompson B. J. and Chamberlin P. C. 2012 SoPh 275 3 10.1007/s11207-011-9841-3 Pesnell W. D., Thompson B. J. and Chamberlin P. C. SoPh 275 2012 3 Rachmeler L. A., Winebarger A. R., Savage S. L. et al 2019 arXiv:1909.05942 Rachmeler L. A., Winebarger A. R., Savage S. L. et al 2019 Reale F., Testa P., Klimchuk J. A. and Parenti S. 2009 ApJ 698 756 10.1088/0004-637X/698/1/756 Reale F., Testa P., Klimchuk J. A. and Parenti S. ApJ 0004-637X 698 1 756 2009 756 Reep J. W., Bradshaw S. J. and Klimchuk J. A. 2013 ApJ 764 193 10.1088/0004-637X/764/2/193 Reep J. W., Bradshaw S. J. and Klimchuk J. A. ApJ 0004-637X 764 2 193 2013 193 Schmelz J. T., Kashyap V. L., Saar S. H. et al 2009a ApJ 704 863 10.1088/0004-637X/704/1/863 Schmelz J. T., Kashyap V. L., Saar S. H. et al ApJ 0004-637X 704 1 863 2009 863 Schmelz J. T., Reames D. V., von Steiger R. and Basu S. 2012 ApJ 755 33 10.1088/0004-637X/755/1/33 Schmelz J. T., Reames D. V., von Steiger R. and Basu S. ApJ 0004-637X 755 1 33 2012 33 Schmelz J. T., Saar S. H., DeLuca E. E. et al 2009b ApJL 693 L131 10.1088/0004-637X/693/2/L131 Schmelz J. T., Saar S. H., DeLuca E. E. et al ApJL 0004-637X 693 2009 L131 Shestov S. V., Kuzin S. V., Urnov A. M., Ul’Yanov A. S. and Bogachev S. A. 2010 AstL 36 44 10.1134/S1063773710010056 Shestov S. V., Kuzin S. V., Urnov A. M., Ul’Yanov A. S. and Bogachev S. A. AstL 36 2010 44 Teriaca L., Warren H. P. and Curdt W. 2012 ApJL 754 L40 10.1088/2041-8205/754/2/L40 Teriaca L., Warren H. P. and Curdt W. ApJL 0004-637X 754 2012 L40 Testa P., De Pontieu B., Martínez-Sykora J., Hansteen V. and Carlsson M. 2012 ApJ 758 54 10.1088/0004-637X/758/1/54 Testa P., De Pontieu B., Martínez-Sykora J., Hansteen V. and Carlsson M. ApJ 0004-637X 758 1 54 2012 54 Testa P., Reale F., Landi E., DeLuca E. E. and Kashyap V. 2011 ApJ 728 30 10.1088/0004-637X/728/1/30 Testa P., Reale F., Landi E., DeLuca E. E. and Kashyap V. ApJ 0004-637X 728 1 30 2011 30 The Astropy Collaboration, Price-Whelan A. M., Sipőcz B. M. et al 2018 AJ 156 123 10.3847/1538-3881/aac387 The Astropy Collaboration, Price-Whelan A. M., Sipőcz B. M. et al AJ 1538-3881 156 1 18 2018 123 Tripathi D., Klimchuk J. A. and Mason H. E. 2011 ApJ 740 111 10.1088/0004-637X/740/2/111 Tripathi D., Klimchuk J. A. and Mason H. E. ApJ 0004-637X 740 2 111 2011 111 Tripathi D., Mason H. E. and Klimchuk J. A. 2010 ApJ 723 713 10.1088/0004-637X/723/1/713 Tripathi D., Mason H. E. and Klimchuk J. A. ApJ 0004-637X 723 1 713 2010 713 van Ballegooijen A. A., Asgari-Targhi M. and Berger M. A. 2014 ApJ 787 87 10.1088/0004-637X/787/1/87 van Ballegooijen A. A., Asgari-Targhi M. and Berger M. A. ApJ 0004-637X 787 1 87 2014 87 van Ballegooijen A. A., Asgari-Targhi M., Cranmer S. R. and DeLuca E. E. 2011 ApJ 736 3 10.1088/0004-637X/736/1/3 van Ballegooijen A. A., Asgari-Targhi M., Cranmer S. R. and DeLuca E. E. ApJ 0004-637X 736 1 3 2011 3 Viall N. M. and Klimchuk J. A. 2011 ApJ 738 24 10.1088/0004-637X/738/1/24 Viall N. M. and Klimchuk J. A. ApJ 0004-637X 738 1 24 2011 24 Viall N. M. and Klimchuk J. A. 2012 ApJ 753 35 10.1088/0004-637X/753/1/35 Viall N. M. and Klimchuk J. A. ApJ 0004-637X 753 1 35 2012 35 Viall N. M. and Klimchuk J. A. 2013 ApJ 771 115 10.1088/0004-637X/771/2/115 Viall N. M. and Klimchuk J. A. ApJ 0004-637X 771 2 115 2013 115 Warren H. P., Winebarger A. R. and Brooks D. H. 2012 ApJ 759 141 10.1088/0004-637X/759/2/141 Warren H. P., Winebarger A. R. and Brooks D. H. ApJ 0004-637X 759 2 141 2012 141 Waskom M., Botvinnik O., O’Kane D. et al 2018 Seaborn: V0.9.0, Zenodo doi:10.5281/zenodo.1313201 Waskom M., Botvinnik O., O’Kane D. et al Seaborn: V0.9.0, Zenodo 2018 Winebarger A. R., Schmelz J. T., Warren H. P., Saar S. H. and Kashyap V. L. 2011 ApJ 740 2 10.1088/0004-637X/740/1/2 Winebarger A. R., Schmelz J. T., Warren H. P., Saar S. H. and Kashyap V. L. ApJ 0004-637X 740 1 2 2011 2 Winebarger A. R., Warren H. P., Schmelz J. T. et al 2012 ApJL 746 L17 10.1088/2041-8205/746/2/L17 Winebarger A. R., Warren H. P., Schmelz J. T. et al ApJL 0004-637X 746 2012 L17

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