Ashkbiz Danehkar

Refereed Papers

34. Relativistic reflection modeling in AGN and related variability from PCA: a brief review
A. Danehkar, 2024,
Frontiers in Astronomy and Space Sciences, vol. 11, id. 1479301

33. X-ray Variability in the Symbiotic Binary RT Cru: Principal Component Analysis
A. Danehkar, J. J. Drake, G. J. M. Luna, 2024,
The Astrophysical Journal, Volume 972, Issue 1, id.109, 16 pp.

32. Disentangling the X-ray variability in the Lyman continuum emitter Haro 11
A. Danehkar, S. Silich, E. C. Herenz, G. Östlin, 2024,
Astronomy & Astrophysics, Volume 689, id.A333, 15 pp.

31. Nebular C IV λ1550 Imaging of the Metal-poor Starburst Mrk 71: Direct Evidence of Catastrophic Cooling
M. S. Oey, A. N. Sawant, A. Danehkar, S. Silich, L. J. Smith, et al., 2023,
The Astrophysical Journal Letters, Volume 958, Issue 1, id.L10, 10 pp.

30. Catastrophic Cooling in Superwinds. III. Nonequilibrium Photoionization
A. Danehkar, M. S. Oey, W. J. Gray, 2022,
The Astrophysical Journal, Volume 937, Issue 2, id.68, 12 pp.

29. Physical Conditions and Chemical Abundances of the Variable Planetary Nebula IC 4997
A. Danehkar, M. Parthasarathy, 2022,
Monthly Notices of the Royal Astronomical Society, Volume 514, Issue 1, pp.1217-1230.

28. Covariant Evolution of Gravitoelectromagnetism
A. Danehkar, 2022,
Universe, Volume 8, Issue 6, id.318.

27. Morpho-kinematic properties of Wolf-Rayet planetary nebulae
A. Danehkar, 2022,
The Astrophysical Journal Supplement Series, Volume 260, Issue 1, id.58, 14 pp.

26. Morphologies of Wolf-Rayet Planetary Nebulae Based on IFU Observations
A. Danehkar, 2022,
Galaxies, Volume 10, Issue 2, id.45.

25. 3D spatio-kinematic modeling of Abell 48, a planetary nebula around a Wolf-Rayet [WN] star
A. Danehkar, 2022,
Monthly Notices of the Royal Astronomical Society, Volume 511, Issue 1, pp.1022-1028

24. Physical and Chemical Properties of Wolf-Rayet Planetary Nebulae
A. Danehkar, 2021,
The Astrophysical Journal Supplement Series, Volume 257, Issue 2, id.58, 23 pp.

23. Catastrophic Cooling in Superwinds. II. Exploring the Parameter Space
A. Danehkar, M. S. Oey, W. J. Gray, 2021,
The Astrophysical Journal, Volume 921, Issue 1, id.91, 24 pp.

22. Dual Fields of Massive/Massless Gravitons in IR/UV Completions
A. Danehkar, H. Alshal, T. L. Curtright, 2021,
International Journal of Modern Physics D, Volume 30, id. 2142021

21. Long-term X-ray variability of the symbiotic system RT Cru based on Chandra spectroscopy
A. Danehkar, M. Karovska, J. J. Drake, V. L. Kashyap, 2021,
Monthly Notices of the Royal Astronomical Society, Volume 500, Issue 4, pp.4801-4817

20. Gravitational fields of the magnetic-type
A. Danehkar, 2020,
International Journal of Modern Physics D, Volume 29, Issue 14, id. 2043001

19. Relativistic Components of the Ultra-fast Outflow in the Quasar PDS 456 from Chandra/HETGS, NuSTAR, and XMM-Newton Observations
R. Boissay-Malaquin, A. Danehkar, H. L. Marshall, M. A. Nowak, 2019,
The Astrophysical Journal, Volume 873, Issue 1, article id. 29, 23 pp. (2019).

18. Electric-magnetic duality in gravity and higher-spin fields
A. Danehkar, 2019,
Frontiers in Physics, Volume 6, id.146 (2018)

17. Electron beam-plasma interaction and electron-acoustic solitary waves in a plasma with suprathermal electrons
A. Danehkar, 2018,
Plasma Physics and Controlled Fusion, Volume 60, Issue 6, article id. 065010 (2018).

16. A Search for H I Lyα Counterparts to Ultrafast X-Ray Outflows
G. A. Kriss, J. C. Lee, A. Danehkar, 2018,
The Astrophysical Journal, Volume 859, Issue 2, article id. 94, 17 pp. (2018).

15. MPI_XSTAR: MPI-based Parallelization of the XSTAR Photoionization Program
A. Danehkar, M. A. Nowak, J. C. Lee, R. K. Smith, 2018,
Publications of the Astronomical Society of the Pacific, Volume 130, Issue 984, pp. 024501 (2018).

14. Discovery of an Ultraviolet Counterpart to an Ultrafast X-Ray Outflow in the Quasar PG 1211+143
G. A. Kriss, J. C. Lee, A. Danehkar, M. A. Nowak, T. Fang, et al., 2018,
The Astrophysical Journal, Volume 853, Issue 2, article id. 166, 7 pp. (2018).

13. The Ultra-fast Outflow of the Quasar PG 1211+143 as Viewed by Time-averaged Chandra Grating Spectroscopy
A. Danehkar, M. A. Nowak, J. C. Lee, G. A. Kriss, A. J. Young, et al., 2018,
The Astrophysical Journal, Volume 853, Issue 2, article id. 165, 16 pp. (2018).

12. Bi-Abundance Ionisation Structure of the Wolf-Rayet Planetary Nebula PB 8
A. Danehkar, 2018,
Publications of the Astronomical Society of Australia, Volume 35, id.e005 18 pp.

11. Mapping Excitation in the Inner Regions of the Planetary Nebula NGC 5189 Using HST WFC3 Imaging
A. Danehkar, M. Karovska, W. Peter Maksym, R. Montez, 2018,
The Astrophysical Journal, Volume 852, Issue 2, article id. 87, 8 pp. (2018).

10. Electrostatic solitary waves in an electron-positron pair plasma with suprathermal electrons
A. Danehkar, 2017,
Physics of Plasmas, Volume 24, Issue 10, id.102905

9. Fast, Low-ionization Emission Regions of the Planetary Nebula M2-42
A. Danehkar, Q. A. Parker, W. Steffen, 2016,
The Astronomical Journal, Volume 151, Issue 2, article id. 38, 6 pp. (2016).

8. Discovery of Collimated Bipolar Outflows in the Planetary Nebula TH 2-A
A. Danehkar, 2015,
The Astrophysical Journal, Volume 815, Issue 1, article id. 35, 6 pp. (2015).

7. Spatially resolved kinematic observations of the planetary nebulae Hen 3-1333 and Hen 2-113.
A. Danehkar, Q. A. Parker, 2015,
Mon. Not. R. Astron. Soc., Vol. 449, p. L56-L59 (2015)

6. The planetary nebula Abell 48 and its [WN] nucleus
D. J. Frew, I. S. Bojičić, Q. A. Parker, M. Stupar, S. Wachter, ..., A. Danehkar, et al., 2014,
Monthly Notices of the Royal Astronomical Society, Volume 440, Issue 2, p.1345-1364

5. Observations and three-dimensional photoionization modelling of the Wolf-Rayet planetary nebula Abell 48
A. Danehkar, H. Todt, B. Ercolano, A. Y. Kniazev, 2014,
Monthly Notices of the Royal Astronomical Society, Volume 439, Issue 4, p.3605-3615

4. Observations and three-dimensional ionization structure of the planetary nebula SuWt 2
A. Danehkar, Q. A. Parker, B. Ercolano, 2013,
Monthly Notices of the Royal Astronomical Society, Volume 434, Issue 2, p.1513-1530

3. Electron-acoustic solitary waves in the presence of a suprathermal electron component
A. Danehkar, N. S. Saini, M. A. Hellberg, I. Kourakis, 2011,
Physics of Plasmas, Volume 18, Issue 7, pp. 072902-072902-10 (2011).

2. On the Significance of the Weyl Curvature in a Relativistic Cosmological Model
A. Danehkar, 2009,
Modern Physics Letters A, Volume 24, Issue 38, pp. 3113-3127 (2009).

1. Consistent interactions of dual linearized gravity in D=5: couplings with a topological BF model
C. Bizdadea, E. M. Cioroianu, A. Danehkar, M. Iordache, S. O. Saliu, et al., 2009,
The European Physical Journal C, Volume 63, Issue 3, pp.491-519

4. pyEQUIB Python Package, an addendum to proEQUIB: IDL Library for Plasma Diagnostics and Abundance Analysis
A. Danehkar, 2020,
Journal of Open Source Software, vol. 5, issue 55, id. 2798

3. AtomNeb Python Package, an addendum to AtomNeb: IDL Library for Atomic Data of Ionized Nebulae
A. Danehkar, 2020,
Journal of Open Source Software, vol. 5, issue 55, id. 2797

2. AtomNeb: IDL Library for Atomic Data of Ionized Nebulae
A. Danehkar, 2019,
Journal of Open Source Software, vol. 4, issue 35, id. 898

1. proEQUIB: IDL Library for Plasma Diagnostics and Abundance Analysis
A. Danehkar, 2018,
Journal of Open Source Software, vol. 3, issue 32, p. 899

2. Book Review: Holographic Entanglement Entropy
A. Danehkar, 2019,
Frontiers in Physics, Volume 7, id.121 (2019)

1. Book Review: Gauge/Gravity Duality
A. Danehkar, 2018,
Frontiers in Physics, Volume 6, id.82 (2018)

Non-refereed Papers

18. Massive-Star Feedback at Low Metallicity
M. S. Oey, M. C. Jecmen, A. N. Sawant, A. E. Jaskot, A. Danehkar, et al., 2024,
Early Disk-Galaxy Formation from JWST to the Milky Way. Edited by F. Tabatabaei, B. Barbuy, and Y.-S. Ting. Proceedings of the International Astronomical Union, Volume 377, pp. 14-21

17. Radiatively Cooling Superwinds in Ultracompact HII Regions
A. Danehkar, 2023,
Resolving the Rise and Fall of Star Formation in Galaxies. Proceedings of the International Astronomical Union, Volume 373, pp. 25-27

16. Numerical Modeling of Galactic Superwinds with Time-evolving Stellar Feedback
A. Danehkar, M. S. Oey, W. J. Gray, 2023,
Winds of Stars and Exoplanets. Proceedings of the International Astronomical Union, Volume 370, pp. 217-222

15. Silicon K-edge Dust Properties of Neutron Star Low-mass X-ray Binaries
A. Danehkar, 2023,
Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution. Proceedings of the virtual meeting held 29 November - 1 December, 2021. Edited by Eleonora Troja and Matthew G. Baring. Proceedings of the International Astronomical Union, Volume 363, pp. 342-344

14. Hydrodynamic Simulations and Time-dependent Photoionization Modeling of Starburst-driven Superwinds
A. Danehkar, M. S. Oey, W. J. Gray, 2023,
The Predictive Power of Computational Astrophysics as a Discovery Tool. Proceedings of the Virtual Meeting held 8-12 November 2021, originally planned for Chamonix, France. Edited by Dmitry Bisikalo, Dmitri Wiebe and Christian Boily. Proceedings of the International Astronomical Union, Volume 362, pp. 64-69

13. Non-equilibrium Photoionization and Hydrodynamic Simulations of Starburst-driven Outflows
A. Danehkar, M. S. Oey, W. J. Gray, 2021,
J. Phys.: Conf. Ser., 2028, 012013

12. Conditions for Superwind Classes of Super Star Clusters
A. Danehkar, M. S. Oey, W. J. Gray, 2021,
Research Notes of the AAS, Volume 5, Issue 4, id.82

11. Orientation of galactic bulge planetary nebulae toward the Galactic center
A. Danehkar, Q. A. Parker, 2016,
Star Clusters and Black Holes in Galaxies across Cosmic Time, Proceedings of the International Astronomical Union, IAU Symposium, Volume 312, pp. 128-130

10. Physical and Chemical Properties of Planetary Nebulae with WR-type Nuclei
A. Danehkar, R. Wesson, A. I. Karakas, Q. A. Parker, 2015,
Publications of The Korean Astronomical Society, vol. 30, issue 2, pp. 159-161

9. Evolution of Planetary Nebulae with WR-type Central Stars
A. Danehkar, 2015,
Publications of the Astronomical Society of the Pacific, Volume 127, Issue 951, pp. 499 (2015).

8. Electron-acoustic solitons in an electron-beam plasma system with kappa-distributed electrons
A. Danehkar, I. Kourakis, M. A. Hellberg, 2014,
Plasma Sciences (ICOPS), IEEE International Conference on High-Power Particle Beams (BEAMS), IEEE 41st International Conference on, pp. 1-6 (2014)

7. A Search for Type Ia Supernova Progenitors: the Central Stars of the Planetary Nebulae NGC 2392 and NGC 6026
A. Danehkar, D. J. Frew, O. De Marco, Q. A. Parker, 2013,
Binary Paths to Type Ia Supernovae Explosions, Proceedings of the International Astronomical Union, IAU Symposium, Volume 281, p. 221-222

6. Photoionization modeling of the Galactic planetary nebulae Abell 39 and NGC 7027
A. Danehkar, D. J. Frew, Q. A. Parker, O. De Marco, 2012,
Planetary Nebulae: An Eye to the Future, Proceedings of the International Astronomical Union, IAU Symposium, Volume 283, p. 340-341

5. Photoionization Models of the Eskimo Nebula: Evidence for a Binary Central Star?
A. Danehkar, D. J. Frew, Q. A. Parker, O. De Marco, 2012,
From Interacting Binaries to Exoplanets: Essential Modeling Tools, Proceedings of the International Astronomical Union. Edited by M. T. Richards and I. Hubeny, IAU Symposium, Volume 282, p. 470-471

4. Large-amplitude electron-acoustic solitons in a dusty plasma with kappa-distributed electrons
N. S. Saini, A. Danehkar, M. A. Hellberg, I. Kourakis, 2011,
DUSTY/COMPLEX PLASMAS: BASIC AND INTERDISCIPLINARY RESEARCH: Sixth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volume 1397, pp. 357-358 (2011).

3. Electron beam--plasma interaction in a dusty plasma with excess suprathermal electrons
A. Danehkar, N. S. Saini, M. A. Hellberg, I. Kourakis, 2011,
DUSTY/COMPLEX PLASMAS: BASIC AND INTERDISCIPLINARY RESEARCH: Sixth International Conference on the Physics of Dusty Plasmas. AIP Conference Proceedings, Volume 1397, pp. 305-306 (2011).

2. Effect of superthermality on nonlinear electrostatic modes in plasmas
S. Sultana, A. Danehkar, N. S. Saini, M. A. Hellberg, I. Kourakis, 2010,
37th European Physical Society Conference on Plasma Physics. EPS Conference Proceedings, Volume 34A, pp. P2.410-P2.410-4 (2010).

1. BF Models in Dual Formulations of Linearized Gravity
C. Bizdadea, E. M. Cioroianu, A. Danehkar, M. Iordache, S. O. Saliu, et al., 2009,
Proceedings of the Physics Conference: TIM-08. AIP Conference Proceedings, Volume 1131. AIP Conference Proceedings, Volume 1131, Issue 1, p.29-35

17. Decomposing X-ray Variability in Seyfert I AGN with Principal Component Analysis
A. Danehkar, 2024,
32nd General Assembly International Union (IAUGA 2024), Capetown, South Africa, poster id. 2023

16. Supermassive Black Hole Spins in Seyfert I AGN via Principal Component Analysis
A. Danehkar, 2024,
APS April Meeting 2024, abstract id.KK03.02

15. Principal Component Analysis of X-ray Variations in the Hard X-ray Emitting Symbiotic Binary RT Cru
A. Danehkar, J. J. Drake, G. J. Luna, 2024,
APS April Meeting 2024, abstract id.HH00.02

14. Relativistic X-ray Reflection in Radio-quiet AGN as Revealed with Principal Component Analysis
A. Danehkar, 2024,
American Astronomical Society, AAS Meeting #243, id. 147.02.

13. Chemical abundances of Planetary Nebulae around Hydrogen-deficient Stars
A. Danehkar, 2022,
EAS Annual Meeting, Special Session SS16: Connecting stellar sources and the ionised ISM. 1 July 2022. ePoster Abstract, id. 1270

12. Probing Supermassive Black Hole Spins through Reflection Modeling of Accretion Disks
A. Danehkar, 2022,
EAS Annual Meeting, Special Session SS12: The inner parsec of AGN: accretion, winds & clouds. 30 June 2022. ePoster Abstract, id. 1264

11. Hydrodynamic Simulations of Large-scale AGN-driven Outflows
A. Danehkar, 2022,
EAS Annual Meeting, Symposium S6: Properties and impact of large-scale multiphase AGN outflows. 27 June 2022. Talk Abstract, id. 1258

10. Bayesian X-ray Spectral Analysis of Black Hole Spins in Seyfert I AGN
A. Danehkar, 2022,
American Astronomical Society Meeting #240, id. 230.02. Bulletin of the American Astronomical Society, Vol. 54, No. 6 e-id 2022n6i230p02

9. Black hole spins in radio-quiet type I active galaxies: Markov chain Monte Carlo based analysis
A. Danehkar, 2022,
APS April Meeting 2022, abstract id.S17.045

8. Positron-acoustic solitons in an electron-positron plasma with beam electrons and kappa-distributed electrons
A. Danehkar, 2021,
APS Division of Plasma Physics Meeting 2021, abstract id.JP11.003

7. Electron Beam-Plasma Interaction in an Electron-Positron Plasma System with Kappa-Distributed Electrons
A. Danehkar, 2021,
2021 IEEE International Conference on Plasma Science (ICOPS)

6. Chandra/HETG And NuSTAR Observations Of The Quasar PDS 456 And Its Ultra-fast Outflow Components
R. Boissay-Malaquin, A. Danehkar, H. Marshall, M. Nowak, 2021,
American Astronomical Society meeting #238, id. 224.02. Bulletin of the American Astronomical Society, Vol. 53, No. 6 e-id 2021n6i224p02

5. Hard X-ray emitting symbiotics: candidates for type Ia supernova progenitors
A. Danehkar, 2021,
APS April Meeting 2021, abstract id.Z09.006

4. Emission Lines from Superwinds of Super Star Clusters
A. Danehkar, M. S. Oey, W. J. Gray, 2021,
American Astronomical Society meeting #237, id. 228.04. Bulletin of the American Astronomical Society, Vol. 53, No. 1 e-id 2021n1i228p04

3. The extreme velocities of the Ultra-fast Outflow components in the Quasar PDS 456
R. Boissay Malaquin, A. Danehkar, H. Marshall, M. Nowak, 2019,
American Astronomical Society, HEAD meeting #17, id.301.03

2. Discovery of Low-ionization Envelopes in the Planetary Nebula NGC 5189: Spatially-resolved Diagnostics from HST Observations
A. Danehkar, M. Karovska, W. P. Maksym, R. Montez, 2018,
American Astronomical Society, AAS Meeting #231, id. 241.12

1. The Ultra-fast Outflows of PG 1211+143
M. Nowak, A. Danehkar, G. A. Kriss, J. C. Lee, R. K. Smith, et al., 2017,
American Astronomical Society, HEAD meeting #16, id.200.03

3. Evolution of Planetary Nebulae with WR-type Central Stars
A. Danehkar, 2014,
Ph.D. Dissertation, Macquarie University, Australia. ProQuest Dissertations & Theses – Publication Number: AAT 3739337; ISBN: 9781339299334, 587 p.
doi:10.5281/zenodo.47794

2. Propagation of Electron-Acoustic Waves in a Plasma with Suprathermal Electrons
A. Danehkar, 2009,
M.Sc. Thesis, Queen's University Belfast, UK. ProQuest Dissertations & Theses – Publication Number: AAT 1604991; ISBN: 9781339299358, 83 p.
doi:10.5281/zenodo.47796

1. Development of a Microcontroller-based Measurement System for the Neuromuscular Blockade during Anesthesia
A. Danehkar, 2007,
M.Sc. Thesis, Universität Rostock, Germany. ProQuest Dissertations & Theses – Publication Number: AAT 30314232; ISBN: 9798379412838, 131 p.
doi:10.5281/zenodo.7815451

4. VizieR Online Data Catalog: Superwinds. III. Non-equilibrium Photoionization (Danehkar+, 2022)
A. Danehkar, M. S. Oey, W. J. Gray, 2022,
VizieR On-line Data Catalog: J/ApJ/937/68. Originally published in: 2022ApJ...937...68D

3. VizieR Online Data Catalog: Abundances of the planetary nebula IC 4997 (Danehkar+, 2022)
A. Danehkar, M. Parthasarathy, 2022,
VizieR On-line Data Catalog: J/MNRAS/514/1217. Originally published in: 2022MNRAS.514.1217D

2. VizieR Online Data Catalog: Properties of [WR] planetary nebulae (Danehkar, 2021)
A. Danehkar, 2021,
VizieR On-line Data Catalog: J/ApJS/257/58. Originally published in: 2021ApJS..257...58D

1. VizieR Online Data Catalog: Catastrophic cooling in superwinds. II. (Danehkar+, 2021)
A. Danehkar, M. S. Oey, W. J. Gray, 2021,
VizieR On-line Data Catalog: J/ApJ/921/91. Originally published in: 2021ApJ...921...91D

9. Exploring the Nearest Green Pea Analog Mrk 71 with Gemini/GMOS
A. Danehkar, B. James, A. Jaskot, G. Micheva, M. Krumholz, et al., 2023,
Gemini North Proposal ID GN-2023B-Q-315

8. Tracing the History and Origin of the Fermi and eROSITA Bubbles using Time-dependent RHD Simulations
A. Danehkar, 2023,
Fermi Theory Proposal ID 161126 (80NSSC24K0630)

7. Monitoring the Nearest Tidal Disruption Event Candidate IGR J12580+0134
A. Danehkar, 2023,
NICER GO Proposal ID 6093 (80NSSC23K1098)

6. Mapping the Nearest Green Pea Analog and LyC Emitter Candidate NGC 2366/Mrk 71
A. Danehkar, I. Yoon, V. Rosero, A. Jaskot, B. James, et al., 2023,
NRAO Proposal ID VLA/23A-369

5. Black Hole Spin Survey of Radio-quiet AGN
A. Danehkar, 2021,
NASA Proposal id.21-ADAP21-0207 (80NSSC22K0626)

4. Dynamic Evolution of the Powerful Jet Activity in the Symbiotic System R Aqr
M. Karovska, M. Claussen, A. Mioduszewski, A. Danehkar, R. Montez, et al., 2018,
NRAO Proposal ID VLA/18A-271

3. Kinematical study of Galactic planetary nebulae with binary central stars
Q. A. Parker, A. Danehkar, D. J. Frew, 2013,
AAO Proposal ID SP019

2. Morphokinematics and abundances analysis of Galactic planetary nebulae with binary central stars
A. Danehkar, 2012,
MSSO Proposal ID 3-12-0158

1. Kinematic study of planetary nebulae with potential double-degenerate nuclei
A. Danehkar, 2012,
MSSO Proposal ID 1-12-0214