Ptak, Andrew F.

  1. Basu-Zych A, Lehmer B, Fragos T, Hornschemeier A, Yukita M, Zezas A, Ptak A. EXPLORING THE OVERABUNDANCE OF ULXS IN METAL- AND DUST-POOR LOCAL LYMAN BREAK ANALOGS. Astrophys. J. 2016;818 (2):13.
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  2. Brightman M, Harrison F, Walton D, Fuerst F, Hornschemeier A, Zezas A, Bachetti M, Grefenstette B, Ptak A, Tendulkar S, Yukita M. SPECTRAL AND TEMPORAL PROPERTIES OF THE ULTRA-LUMINOUS X-RAY PULSAR IN M82 FROM 15 YEARS OF CHANDRA OBSERVATIONS AND ANALYSIS OF THE PULSED EMISSION USING NUSTAR. Astrophys. J. 2016;816 (2):9.
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  3. Ptak A, Hornschemeier A, Zezas A, Lehmer B, Yukita M, Wik D, Antoniou V, Argo M, Ballo L, Bechtol K, Boggs S, Della Ceca R, Christensen F, Craig W, Hailey C, Harrison F, Krivonos R, Maccarone T, Stern D, Tatum M, Venters T, Zhang W. FOCUSED, HARD X-RAY LOOK AT ARP 299 WITH NUSTAR. Astrophys. J. 2015;800 (2):10.
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  4. Camp J, Barthelmy S, Petre R, Gehrels N, Marshall F, Ptak A, Racusin J. ISS-LOBSTER: A LOW-COST WIDE-FIELD X-RAY TRANSIENT DETECTOR ON THE ISS. In: EUV AND X-RAY OPTICS: SYNERGY BETWEEN LABORATORY AND SPACE IV. Conference on EUV and X-ray Optics - Synergy between Laboratory and Space IV; APR 13-14, 2015; Prague, CZECH REPUBLIC. 2015. p. 7.
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  5. Teng S, Rigby J, Stern D, Ptak A, Alexander D, Bauer F, Boggs S, Brandt W, Christensen F, Comastri A, Craig W, Farrah D, Gandhi P, Hailey C, Harrison F, Hickox R, Koss M, Luo B, Treister E, Zhang W. NUSTAR SURVEY OF NEARBY ULTRALUMINOUS INFRARED GALAXIES. Astrophys. J. 2015;814 (1):16.
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  6. Lehmer B, Tyler J, Hornschemeier A, Wik D, Yukita M, Antoniou V, Boggs S, Christensen F, Craig W, Hailey C, Harrison F, Maccarone T, Ptak A, Stern D, Zezas A, Zhang W. THE 0.3-30 KEV SPECTRA OF POWERFUL STARBURST GALAXIES: NUSTAR AND CHANDRA OBSERVATIONS OF NGC 3256 AND NGC 3310. Astrophys. J. 2015;806 (1):13.
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  7. Rana V, Harrison F, Bachetti M, Walton D, Furst F, Barret D, Miller J, Fabian A, Boggs S, Christensen F, Craig W, Grefenstette B, Hailey C, Madsen K, Ptak A, Stern D, Webb N, Zhang W. THE BROADBAND XMM-NEWTON AND NUSTAR X-RAY SPECTRA OF TWO ULTRALUMINOUS X-RAY SOURCES IN THE GALAXY IC 342. Astrophys. J. 2015;799 (2):12.
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  8. Gaskin J, Weisskopf M, Vikhlinin A, Tananbaum H, Bandler S, Bautz M, Burrows D, Falcone A, Harrison F, Heilmann R, Heinz S, Hopkins R, Kilbourne C, Kouveliotou C, Kraft R, Kravtsov A, McEntaffer R, Natarajan P, O'Dell S, Petre R, Prieskorn Z, Ptak A, Ramsey B, Reid P, Schnell A, Schwartz D, Townsley L. X-RAY SURVEYOR MISSION: A CONCEPT STUDY. In: UV, X-RAY, AND GAMMA-RAY SPACE INSTRUMENTATION FOR ASTRONOMY XIX. Conference on UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX; AUG 09-10, 2015; San Diego, CA. 2015. p. 14.
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  9. Smith R, Ackermann M, Allured R, Bautz M, Bregman J, Bookbinder J, Burrows D, Brenneman L, Brickhouse N, Cheimets P, Carrier A, Freeman M, Kaastra J, McEntaffer R, Miller J, Ptak A, Petre R, Vacanti G. ARCUS: AN ISS-ATTACHED HIGH-RESOLUTION X-RAY GRATING SPECTROMETER. In: SPACE TELESCOPES AND INSTRUMENTATION 2014: ULTRAVIOLET TO GAMMA RAY. Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray; JUN 22-26, 2014; Montreal, CANADA. 2014. p. 12.
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  10. Walton D, Harrison F, Grefenstette B, Miller J, Bachetti M, Barret D, Boggs S, Christensen F, Craig W, Fabian A, Fuerst F, Hailey C, Madsen K, Parker M, Ptak A, Rana V, Stern D, Webb N, Zhang W. BROADBAND X-RAY SPECTRA OF THE ULTRALUMINOUS X-RAY SOURCE HOLMBERG IX X-1 OBSERVED WITH NUSTAR, XMM-NEWTON, AND SUZAKU. Astrophys. J. 2014;793 (1):12.
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  11. LaMassa S, Yaqoob T, Ptak A, Jia J, Heckman T, Gandhi P, Urry C. DELVING INTO X-RAY OBSCURATION OF TYPE 2 AGN, NEAR AND FAR. Astrophys. J. 2014;787 (1):17.
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  12. Maccarone T, Lehmer B, Leyder J, Antoniou V, Hornschemeier A, Ptak A, Wik D, Zezas A. NEW CANDIDATE WOLF-RAYET X-RAY BINARY IN NGC 253. Mon. Not. Roy. Astron. Soc. 2014;439 (3):3064-3072.
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  13. Gandhi P, Lansbury G, Alexander D, Stern D, Arevalo P, Ballantyne D, Balokovic M, Bauer F, Boggs S, Brandt W, Brightman M, Christensen F, Comastri A, Craig W, Del Moro A, Elvis M, Fabian A, Hailey C, Harrison F, Hickox R, Koss M, LaMassa S, Luo B, Madejski G, Ptak A, Puccetti S, Teng S, Urry C, Walton D, Zhang W. NUSTAR UNVEILS A COMPTON-THICK TYPE 2 QUASAR IN MRK 34. Astrophys. J. 2014;792 (2):13.
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  14. Gandhi P, Lansbury G, Alexander D, Stern D, Arevalo P, Ballantyne D, Balokovic M, Bauer F, Boggs S, Brandt W, Brightman M, Christensen F, Comastri A, Craig W, Del Moro A, Elvis M, Fabian A, Hailey C, Harrison F, Hickox R, Koss M, LaMassa S, Luo B, Madejski G, Ptak A, Puccetti S, Teng S, Urry C, Walton D, Zhang W. NUSTAR UNVEILS A COMPTON-THICK TYPE 2 QUASAR IN MRK 34 (VOL 792, PG 117, 2014). Astrophys. J. 2014;794 (2):2.
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  15. Wik D, Lehmer B, Hornschemeier A, Yukita M, Ptak A, Zezas A, Antoniou V, Argo M, Bechtol K, Boggs S, Christensen F, Craig W, Hailey C, Harrison F, Krivonos R, Maccarone T, Stern D, Venters T, Zhang W. SPATIALLY RESOLVING A STARBURST GALAXY AT HARD X-RAY ENERGIES: NUSTAR, CHANDRA, AND VLBA OBSERVATIONS OF NGC 253. Astrophys. J. 2014;797 (2):20.
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  16. Lehmer B, Berkeley M, Zezas A, Alexander D, Basu-Zych A, Bauer F, Brandt W, Fragos T, Hornschemeier A, Kalogera V, Ptak A, Sivakoff G, Tzanavaris P, Yukita M. THE X-RAY LUMINOSITY FUNCTIONS OF FIELD LOW-MASS X-RAY BINARIES IN EARLY-TYPE GALAXIES: EVIDENCE FOR A STELLAR AGE DEPENDENCE. Astrophys. J. 2014;789 (1):15.
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  17. Jia J, Ptak A, Heckman T, Zakamska N. AN ARCHIVAL CHANDRA AND XMM-NEWTON SURVEY OF TYPE 2 QUASARS. Astrophys. J. 2013;777 (1):17.
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  18. Walton D, Fuerst F, Harrison F, Stern D, Bachetti M, Barret D, Bauer F, Boggs S, Christensen F, Craig W, Fabian A, Grefenstette B, Hailey C, Madsen K, Miller J, Ptak A, Rana V, Webb N, Zhang W. AN EXTREMELY LUMINOUS AND VARIABLE ULTRALUMINOUS X-RAY SOURCE IN THE OUTSKIRTS OF CIRCINUS OBSERVED WITH NUSTAR. Astrophys. J. 2013;779 (2):18.
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  19. Robitaille T, Tollerud E, Greenfield P, Droettboom M, Bray E, Aldcroft T, Davis M, Ginsburg A, Price-Whelan A, Kerzendorf W, Conley A, Crighton N, Barbary K, Muna D, Ferguson H, Grollier F, Parikh M, Nair P, Guenther H, Deil C, Woillez J, Conseil S, Kramer R, Turner J, Singer L, Fox R, Weaver B, Zabalza V, Edwards Z, Bostroem K, Burke D, Casey A, Crawford S, Dencheva N, Ely J, Jenness T, Labrie K, Lim P, Pierfederici F, Pontzen A, Ptak A, Refsdal B, Servillat M, Streicher O. ASTROPY: A COMMUNITY PYTHON PACKAGE FOR ASTRONOMY. Astron. Astrophys. 2013;558 9.
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  20. Braito V, Ballo L, Reeves J, Risaliti G, Ptak A, Turner T. DECOUPLING ABSORPTION AND CONTINUUM VARIABILITY IN THE SEYFERT 2 NGC 4507. Mon. Not. Roy. Astron. Soc. 2013;428 (3):2516-2528.
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