Ptak, Andrew F.

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  1. 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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  2. 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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  3. 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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  4. 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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  5. 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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  6. 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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  7. 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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  8. Ptak A, Bandler S, Bookbinder J, Kelley R, Petre R, Smith R, Smith S. DESIGNING THE X-RAY MICROCALORIMETER SPECTROMETER FOR OPTIMAL SCIENCE RETURN. In: UV, X-RAY, AND GAMMA-RAY SPACE INSTRUMENTATION FOR ASTRONOMY XVIII. Conference on UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII; AUG 25-26, 2013; San Diego, CA. 2013. p. 10.
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  9. Basu-Zych A, Lehmer B, Hornschemeier A, Goncalves T, Fragos T, Heckman T, Overzier R, Ptak A, Schiminovich D. EVIDENCE FOR ELEVATED X-RAY EMISSION IN LOCAL LYMAN BREAK GALAXY ANALOGS. Astrophys. J. 2013;774 (2):12.
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  10. Tremmel M, Fragos T, Lehmer B, Tzanavaris P, Belczynski K, Kalogera V, Basu-Zych A, Farr W, Hornschemeier A, Jenkins L, Ptak A, Zezas A. MODELING THE REDSHIFT EVOLUTION OF THE NORMAL GALAXY X-RAY LUMINOSITY FUNCTION. Astrophys. J. 2013;766 (1):13.
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  11. Tzanavaris P, Fragos T, Tremmel M, Jenkins L, Zezas A, Lehmer B, Hornschemeier A, Kalogera V, Ptak A, Basu-Zych A. MODELING X-RAY BINARY EVOLUTION IN NORMAL GALAXIES: INSIGHTS FROM SINGS. Astrophys. J. 2013;774 (2):17.
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  12. Lehmer B, Wik D, Hornschemeier A, Ptak A, Antoniou V, Argo M, Bechtol K, Boggs S, Christensen F, Craig W, Hailey C, Harrison F, Krivonos R, Leyder J, Maccarone T, Stern D, Venters T, Zezas A, Zhang W. NUSTAR AND CHANDRA INSIGHT INTO THE NATURE OF THE 3-40 KEV NUCLEAR EMISSION IN NGC 253. Astrophys. J. 2013;771 (2):8.
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  13. LaMassa S, Heckman T, Ptak A, Urry C. ON THE STAR FORMATION-AGN CONNECTION AT Z LESS THAN OR SIMILAR TO 0.3. Astrophys. J. Lett. 2013;765 (2):6.
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  14. Harrison F, Craig W, Christensen F, Hailey C, Zhang W, Boggs S, Stern D, Cook W, Forster K, Giommi P, Grefenstette B, Kim Y, Kitaguchi T, Koglin J, Madsen K, Mao P, Miyasaka H, Mori K, Perri M, Pivovaroff M, Puccetti S, Rana V, Westergaard N, Willis J, Zoglauer A, An H, Bachetti M, Barriere N, Bellm E, Bhalerao V, Brejnholt N, Fuerst F, Liebe C, Markwardt C, Nynka M, Vogel J, Walton D, Wik D, Alexander D, Cominsky L, Hornschemeier A, Hornstrup A, Kaspi V, Madejski G, Matt G, Molendi S, Smith D, Tomsick J, Ajello M, Ballantyne D, Balokovic M, Barret D, Bauer F, Blandford R, Brandt W, Brenneman L, Chiang J, Chakrabarty D, Chenevez J, Comastri A, Dufour F, Elvis M, Fabian A, Farrah D, Fryer C, Gotthelf E, Grindlay J, Helfand D, Krivonos R, Meier D, Miller J, Natalucci L, Ogle P, Ofek E, Ptak A, Reynolds S, Rigby J, Tagliaferri G, Thorsett S, Treister E, Urry C. THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY (NUSTAR) HIGH-ENERGY X-RAY MISSION. Astrophys. J. 2013;770 (2):19.
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  15. Bachetti M, Rana V, Walton D, Barret D, Harrison F, Boggs S, Christensen F, Craig W, Fabian A, Fuerst F, Grefenstette B, Hailey C, Hornschemeier A, Madsen K, Miller J, Ptak A, Stern D, Webb N, Zhang W. THE ULTRALUMINOUS X-RAY SOURCES NGC 1313 X-1 AND X-2: A BROADBAND STUDY WITH NUSTAR AND XMM-NEWTON. Astrophys. J. 2013;778 (2):11.
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  16. Fragos T, Lehmer B, Tremmel M, Tzanavaris P, Basu-Zych A, Belczynski K, Hornschemeier A, Jenkins L, Kalogera V, Ptak A, Zezas A. X-RAY BINARY EVOLUTION ACROSS COSMIC TIME. Astrophys. J. 2013;764 (1):13.
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  17. Kanner J, Baker J, Blackburn L, Camp J, Mooley K, Mushotzky R, Ptak A. X-RAY TRANSIENTS IN THE ADVANCED LIGO/VIRGO HORIZON. Astrophys. J. 2013;774 (1):9.
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  18. Jia J, Ptak A, Heckman T, Braito V, Reeves J. CHANDRA OBSERVATION OF THE ULTRALUMINOUS INFRARED GALAXY IRAS 19254-7245 (THE SUPERANTENNAE): X-RAY EMISSION FROM THE COMPTON-THICK ACTIVE GALACTIC NUCLEUS AND THE DIFFUSE STARBURST. Astrophys. J. 2012;759 (1):13.
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  19. LaMassa S, Heckman T, Ptak A. DISENTANGLING AGN AND STAR FORMATION IN SOFT X-RAYS. Astrophys. J. 2012;758 (2):12.
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  20. LaMassa S, Heckman T, Ptak A, Schiminovich D, O'Dowd M, Bertincourt B. EXPLORING THE CONNECTION BETWEEN STAR FORMATION AND ACTIVE GALACTIC NUCLEUS ACTIVITY IN THE LOCAL UNIVERSE. Astrophys. J. 2012;758 (1):27.
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