Skip navigation
  • INAF logo
  • Home
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects
  • Explore by
    • Research outputs
    • Researchers
    • Organization units
    • Projects
  • Login:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
  • Italian
  • English

  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28069
Title: The X-Ray Luminosity Function of Ultraluminous X-Ray Sources in Collisional Ring Galaxies
Authors: WOLTER, Anna Luisa Maria 
FRUSCIONE, ANTONELLA
MAPELLI, MICHELA
Issue Date: 2018
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 863
Issue: 1
First Page: 43
Abstract: Ring galaxies are fascinating laboratories: a catastrophic impact between two galaxies (one not much smaller than the other) has produced fireworks, especially in the larger one, when hit roughly perpendicularly to the plane. We analyze the point sources produced by the starburst episode following the impact in the rings of seven galaxies and determine their X-ray luminosity function (XLF). In total, we detect 63 sources, of which 50 have luminosity L <SUB>X</SUB> ≥ 10<SUP>39</SUP> erg s<SUP>-1</SUP>, classifying them as ultraluminous X-ray sources (ULXs). We find that the total XLF is not significantly different from XLFs derived for other kinds of galaxies, with a tendency of having a larger fraction of high X-ray luminosity objects. Both the total number of ULXs and the number of ULXs per unit star formation rate are found in the upper envelope of the more normal galaxies distribution. Further analysis would be needed to address the issue of the nature of the compact component in the binary system.
URI: http://hdl.handle.net/20.500.12386/28069
URL: https://iopscience.iop.org/article/10.3847/1538-4357/aacb34
ISSN: 0004-637X
DOI: 10.3847/1538-4357/aacb34
Bibcode ADS: 2018ApJ...863...43W
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

Files in This Item:
File Description SizeFormat 
Wolter_2018_ApJ_863_43.pdfPdf editoriale1.51 MBAdobe PDFView/Open
Show full item record

Page view(s)

4
checked on Jan 23, 2021

Download(s)

4
checked on Jan 23, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are published in Open Access, unless otherwise indicated.


Explore by
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects

Informazioni e guide per autori

https://openaccess-info.inaf.it: tutte le informazioni sull'accesso aperto in INAF

Come si inserisce un prodotto: le guide a OA@INAF

La Policy INAF sull'accesso aperto

Documenti e modelli scaricabili

Feedback
Built with DSpace-CRIS - Extension maintained and optimized by Logo 4SCIENCE