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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 2000 · astro-phShow all

2 papers · 2 filters

astro-ph2000★ 83 cited

Hard X-ray Emission and the Ionizing Source in LINERs

Yuichi Terashima, Luis C. Ho, Andrew F. Ptak

We report X-ray fluxes in the 2--10 keV band from LINERs (low-ionization nuclear emission-line regions) and low-luminosity Seyfert galaxies obtained with the ASCA satellite. Observ…

astro-ph2000★ 22 cited

Iron K line Variability in the Low-Luminosity AGN NGC 4579

Y. Terashima, L. C. Ho, A. F. Ptak +4

We present results of new ASCA observations of the low-luminosity AGN (LLAGN) NGC 4579 obtained on 1998 December 18 and 28, and we report on detection of variability of an iron K e…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.