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researcher

A. Ptak

67 papers hereh-index 303.2k citations202 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author2
  • middle author49
  • last author9

Across the 60 of 67 papers where every author was matched, so the position is known.

fields
  • astro-ph26
  • astro-ph.HE21
  • astro-ph.GA9
  • astro-ph.CO8
  • astro-ph.IM3
same name
  • A. Ptak — 28 papers, h 22
  • A. Ptak — 25 papers, h 17
  • A. Ptak — 14 papers, h 10
  • A. Ptak — 10 papers, h 4
  • A. Ptak — 7 papers, h 29
  • A. Ptak — 6 papers, h 5

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
19972023
most citedMonte-Carlo Simulator and Ancillary Response Generator of Suzaku XRT/XIS System for Spatially Extended Source Analysis

463 citations · 3.5k across the 67 of their papers we have counts for

collaborators
Showing 2014 · astro-ph.HEShow all

3 papers · 2 filters

astro-ph.HE2014★ 37 cited

Delving Into X-ray Obscuration of Type 2 AGN, Near and Far

Stephanie M. LaMassa, Tahir Yaqoob, Andrew F. Ptak +4

Using self-consistent, physically motivated models, we investigate the X-ray obscuration in 19 Type 2 [OIII] 5007 Å selected AGN, 9 of which are local Seyfert 2 galaxies and 10 of…

astro-ph.HE2014★ 19 cited

A new candidate Wolf-Rayet X-ray binary in NGC 253

Thomas J. Maccarone, Bret D. Lehmer, J. C. Leyder +5

We have discovered a persistent, but highly variable X-ray source in the nearby starburst galaxy NGC 253. The source varies at the level of a factor of about 5 in count rate on tim…

astro-ph.HE2014★ 78 cited

The Broadband XMM-Newton and NuSTAR X-ray Spectra of Two Ultraluminous X-ray Sources in the Galaxy IC 342

Vikram Rana, Fiona A. Harrison, Matteo Bachetti +15

We present results for two Ultraluminous X-ray Sources (ULXs), IC 342 X-1 and IC 342 X-2, using two epochs of XMM-Newton and NuSTAR observations separated by ∼7 days. We obser…

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