A. Ptak

22.3k total citations
128 papers, 3.4k citations indexed

About

A. Ptak is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics and Instrumentation. According to data from OpenAlex, A. Ptak has authored 128 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 119 papers in Astronomy and Astrophysics, 44 papers in Nuclear and High Energy Physics and 17 papers in Instrumentation. Recurrent topics in A. Ptak's work include Astrophysical Phenomena and Observations (105 papers), Galaxies: Formation, Evolution, Phenomena (81 papers) and Astrophysics and Cosmic Phenomena (36 papers). A. Ptak is often cited by papers focused on Astrophysical Phenomena and Observations (105 papers), Galaxies: Formation, Evolution, Phenomena (81 papers) and Astrophysics and Cosmic Phenomena (36 papers). A. Ptak collaborates with scholars based in United States, United Kingdom and Greece. A. Ptak's co-authors include Timothy M. Heckman, A. E. Hornschemeier, E. J. M. Colbert, Bret Lehmer, Yuichi Terashima, Luis C. Ho, W. N. Brandt, P. J. Serlemitsos, T. Yaqoob and R. E. Griffiths and has published in prestigious journals such as Science, The Astrophysical Journal and Monthly Notices of the Royal Astronomical Society.

In The Last Decade

A. Ptak

119 papers receiving 3.2k citations

Peers

Countries citing papers authored by A. Ptak

Since Specialization

Citations

This map shows the geographic impact of A. Ptak's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by A. Ptak with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. Ptak more than expected).

Fields of papers citing papers by A. Ptak

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. Ptak. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by A. Ptak. The network helps show where A. Ptak may publish in the future.

Co-authorship network of co-authors of A. Ptak

This figure shows the co-authorship network connecting the top 25 collaborators of A. Ptak. A scholar is included among the top collaborators of A. Ptak based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with A. Ptak. A. Ptak is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Advancing Precision Particle Background Estimation for Future X-Ray Missions: Correlated Variability between the Alpha Magnetic Spectrometer and Chandra/XMM-Newton 2024 ·The Astrophysical Journal ·Arnab Sarkar, Catherine E. Grant, Eric D. Miller, Mark W. Bautz, Benjamin Schneider, (unknown), Gerrit Schellenberger, S. W. Allen, Ralph Kraft, Dan Wilkins, (unknown), A. Ptak	2
2	Modeling the High-energy Ionizing Output from Simple Stellar and X-Ray Binary Populations 2023 ·The Astrophysical Journal ·(unknown), Antara Basu‐Zych, Benjamin D. Johnson, P. Tzanavaris, Anne E. Jaskot, (unknown), Bret Lehmer, Mihoko Yukita, Edmund Hodges‐Kluck, A. E. Hornschemeier, A. Ptak, (unknown)	15
3	Measuring the Cosmic X-Ray Background in 3–20 KeV with Stray Light from NuSTAR 2023 ·The Astronomical Journal ·(unknown), Daniel R. Wik, Brian W. Grefenstette, N. Cappelluti, F. Civano, F. Gastaldello, R. Gilli, Fiona Harrison, A. E. Hornschemeier, Ryan C. Hickox, Roman Krivonos, Kristin K. Madsen, S. Molendi, A. Ptak, Daniel Stern, Andreas Zoglauer	5
4	The Heraklion Extragalactic Catalogue (HECATE): a value-added galaxy catalogue for multimessenger astrophysics 2021 ·Monthly Notices of the Royal Astronomical Society ·Konstantinos Kovlakas, A. Zezas, Jeff J. Andrews, Antara Basu‐Zych, Tassos Fragos, A. E. Hornschemeier, (unknown), Bret Lehmer, A. Ptak	24
5	The eROSITA Final Equatorial-Depth Survey (eFEDS) 2021 ·Astronomy and Astrophysics ·(unknown), A. E. Hornschemeier, F. Haberl, Antara Basu‐Zych, (unknown), A. Zezas, M. Salvato, A. Ptak, Ákos Bogdán, Konstantinos Kovlakas, J. Wilms, M. Sasaki, Teng Liu, A. Merloni, T. Dwelly, H. Brunner, G. Lamer, Chandreyee Maitra, K. Nandra, A. Santangelo	9
6	Mock catalogs for the extragalactic X-ray sky: Simulating AGN surveys with ATHENA and with the AXIS probe 2020 ·Springer Link (Chiba Institute of Technology) ·Stefano Marchesi, R. Gilli, G. Lanzuisi, Thomas Dauser, S. Ettori, Fabio Vito, N. Cappelluti, A. Comastri, R. F. Mushotzky, A. Ptak, Colin Norman	29
7	The next-generation X-ray galaxy survey with eROSITA 2020 ·Monthly Notices of the Royal Astronomical Society ·Antara Basu‐Zych, A. E. Hornschemeier, F. Haberl, (unknown), J. Wilms, A. Zezas, Konstantinos Kovlakas, A. Ptak, Thomas Dauser	8
8	A census of ultraluminous X-ray sources in the local Universe 2020 ·Monthly Notices of the Royal Astronomical Society ·Konstantinos Kovlakas, A. Zezas, Jeff J. Andrews, Antara Basu‐Zych, Tassos Fragos, A. E. Hornschemeier, Bret Lehmer, A. Ptak	56
9	A ∼60 day Super-orbital Period Originating from the Ultraluminous X-Ray Pulsar in M82 2019 ·The Astrophysical Journal ·Murray Brightman, Fiona A. Harrison, Matteo Bachetti, Y. C. Xu, Felix Fürst, D. J. Walton, A. Ptak, Mihoko Yukita, A. Zezas	29
10	NuStar Hard X-Ray View of Low-luminosity Active Galactic Nuclei: High-energy Cutoff and Truncated Thin Disk 2019 ·The Astrophysical Journal ·George Younes, A. Ptak, Luis C. Ho, Fu‐Guo Xie, (unknown), Ye‐Fei Yuan, Daniela Huppenkothen, Mihoko Yukita	22
11	X-ray binaries: laboratories for understanding the evolution of compact objects from their birth to their mergers 2019 ·Bulletin of the American Astronomical Society ·A. Zezas, (unknown), Vallia Antoniou, G. Fabbiano, Tassos Fragos, A. Vikhlinin, A. E. Hornschemeier, Bret Lehmer, (unknown), D. Pooley, A. Ptak, Paul H. Sell	1
12	Black Holes and Neutron Stars in Nearby Galaxies: Insights from NuSTAR 2018 ·The Astrophysical Journal ·(unknown), A. E. Hornschemeier, Daniel R. Wik, Mihoko Yukita, A. Zezas, A. Ptak, Bret Lehmer, Vallia Antoniou, Thomas J. Maccarone, Benjamin F. Williams, Francesca M. Fornasini	15
13	A Long Hard-X-Ray Look at the Dual Active Galactic Nuclei of M51 with NuSTAR 2018 ·The Astrophysical Journal ·Murray Brightman, Mislav Baloković, Michael Koss, D. M. Alexander, (unknown), Hannah P. Earnshaw, P. Gandhi, Fiona A. Harrison, A. E. Hornschemeier, Bret Lehmer, Meredith C. Powell, A. Ptak, Blagoy Rangelov, T. P. Roberts, Daniel Stern, D. J. Walton, A. Zezas	11
14	Do You See What I See? Exploring the Consequences of Luminosity Limits in Black Hole–Galaxy Evolution Studies 2017 ·The Astrophysical Journal ·(unknown), Ryan C. Hickox, Simon J. Mutch, Darren Croton, A. Ptak, M. A. DiPompeo	6
15	Identification of the Hard X-Ray Source Dominating the E > 25 keV Emission of the Nearby Galaxy M31 2017 ·The Astrophysical Journal ·Mihoko Yukita, A. Ptak, A. E. Hornschemeier, Daniel R. Wik, Thomas J. Maccarone, K. Pottschmidt, A. Zezas, Vallia Antoniou, Ralf Ballhausen, Bret Lehmer, A. Y. Lien, Benjamin F. Williams, F. K. Baganoff, Patricia T. Boyd, Teruaki Enoto, J. A. Kennea, K. L. Page, Yumi Choi	5
16	THE 0.3–30 keV SPECTRA OF POWERFUL STARBURST GALAXIES:NuSTARANDCHANDRAOBSERVATIONS OF NGC 3256 AND NGC 3310 2015 ·The Astrophysical Journal ·Bret Lehmer, J. Tyler, A. E. Hornschemeier, Daniel R. Wik, Mihoko Yukita, Vallia Antoniou, Steven E. Boggs, Finn E. Christensen, William W. Craig, Charles J. Hailey, Fiona A. Harrison, Thomas J. Maccarone, A. Ptak, Daniel Stern, A. Zezas, (unknown)	22
17	Wide Field X-ray Telescope (WFXT) 2013 ·MmSAI ·S. S. Murray, S. Borgani, S. Campana, O. Citterio, W. Forman, R. Giacconi, R. Gilli, M. Paolillo, Giovanni Pareschi, A. Ptak, P. Rosati, P. Tozzi, M. C. Weisskopf, (unknown)	3
18	The Advanced X-ray Spectroscopic Imaging Observatory 2012 ·AAS ·Jay A. Bookbinder, Robert B. Smith, Miquel García, H. Tananbaum, N. E. White, Robert Petre, A. Ptak, A. E. Hornschemeier, (unknown), S. R. Bandler, (unknown), M. W. Bautz, (unknown), Randall L. McEntaffer, Joel N. Bregman, Paul B. Reid	1
19	Simulating Galactic and Extragalactic Surveys with the NuSTAR Simulator NuSIM. 2011 ·(unknown), D. M. Alexander, V. Bhalerao, (unknown), (unknown), (unknown), Fiona A. Harrison, (unknown), H. Miyasaka, A. Ptak, D. Stern, J. A. Tomsick, Vikram Rana, Andreas Zoglauer	1
20	A Suzaku observation of the ULIRG IRAS19254-7245: discerning the AGN \ncomponent 2009 ·Springer Link (Chiba Institute of Technology) ·V. Braito, J. N. Reeves, R. Della Ceca, A. Ptak, G. Risaliti, T. Yaqoob	15

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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