Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Journals
  3. Proceedings of the International Astronomical Union
  4. Volume 8 Issue s290: feeding compact objects: accretion on all scales
Journal Home
Refine listing

Refine listing

Access:
Publication date:

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

Feeding Compact Objects: Accretion on All Scales

Volume 8 - Issue S290 - August 2012
Contents

Page 8 of 8

Contributed Papers

  • Accretion and pulsation of IU Per based on INTEGRAL and ground base photometry

  • Emil Kundra, Ladislav Hric, Rudolf Gális
  • Published online by Cambridge University Press:
    21 February 2013, pp. 377-378
    • Article
      • You have access
    • PDF
    • Export citation
    • NASA ADS Abstract Service

  • IU Persei (IU Per) is an eclipsing semi detached (SD) binary with pulsating component (oscillating eclipsing Algol - oEA). Using our ground base photometry in Johnson's B and V filters and INTEGRAL/OMC (Optical Monitoring Camera) data in V filter we introduce the model of this system. We determined the (O - C) diagram behavior. Moreover, the short term variations of the light curve were detected. Whats more, we obtained residua, by comparison of observational and synthetic light curves (LC), of which the detailed period analysis enabled to characterize and localize their source, that can be explained as the pulsation activity of the primary component. The secondary, less massive component, is beyond the instability belt on H-R diagram and fulfills its Roche lobe. The accreting primary component pulsates in modes typical for the δ Scuti stars.

  • The arcsecond scale properties of 6 UHBLs

  • Shengxu Yang, Zhongzu Wu, Minfeng Gu
  • Published online by Cambridge University Press:
    21 February 2013, pp. 379-380
    • Article
      • You have access
    • PDF
    • Export citation
    • NASA ADS Abstract Service

  • In this work, by using the VLA archive data, we present the arcsecond scale structure and radio spectrum properties of six UHBLs, which were selected from Nieppola et al. 2006 , including all the UHBLs available with VLA archive data at L, C, X band. Our preliminary result shows that spectrum of UHBLs seems to be steeper than normal HBLs.

  • The kHz QPOs of Neutron Stars and Millisecond Pulsars and Implications

  • Chengmin Zhang, Dehua Wang
  • Published online by Cambridge University Press:
    21 February 2013, pp. 381-385
    • Article
      • You have access
    • PDF
    • Export citation
    • NASA ADS Abstract Service

  • The kilohertz quasi-periodic oscillations (kHz QPOs) have been found in neutron star low mass X-ray binaries (NS-LMXBs), which present the millisecond timing phenomena close to the surface of the compact objects. We briefly summarize the following contents: (1). The correlations and distributions of twin kHz QPOs; (2). The relations of high-low frequency QPOs; (3). The QPO properties of NS Atoll and Z sources; (4). No clear direct correlations between NS spins and QPOs; (5). The mechanisms of kHz QPOs; (6). The implications of kHZ QPOs, e.g., NS mass and radius, disk thickness and magnetic field of Atoll and Z source.

Front Cover (OFC, IFC) and matter

  • IAU volume 8 issue S290 Cover and Front matter

  • Published online by Cambridge University Press:
    21 February 2013, pp. f1-f24
    • Article
      • You have access
    • PDF
    • Export citation
    • NASA ADS Abstract Service

Back Cover (IBC, OBC) and matter

  • IAU volume 8 issue S290 Cover and Back matter

  • Published online by Cambridge University Press:
    21 February 2013, pp. b1-b8
    • Article
      • You have access
    • PDF
    • Export citation
    • NASA ADS Abstract Service

Page 8 of 8