Published July 5, 2004
| Version v1
Journal article
Multicolour observations of V404 Cyg and J1118+480 with ULTRACAM
Creators
- 1. Instituto de Astrofisica de Canarias, 38200 La Laguna, Tenerife (Spain)
- 2. Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH (United Kingdom)
- 3. Department of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ (United Kingdom)
- 4. Observatorio Astronomico de Lisboa, Tapada da Ajuda 1349-018, Lisbon (Portugal)
- 5. Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, MK7 6AA (United Kingdom)
- 6. Astronomy Department, University of Texas at Austin, 1 University Station C1400, Austin, Texas 78712-0259 (United States)
Description
We present high time-resolution multicolour observations of the quiescent soft X-ray transients V404 Cyg and XTE J1118+480 obtained with ULTRACAM. The power density spectrum (PDS) of the V404 Cyg data shows a quasi-periodic oscillation (QPO) feature at 0.78 mHz (=21.5 min), whereas the PDS of the XTE J1118+480 data shows a break. We discuss the possible origins for the QPO feature and break-frequency in the context of the advection-dominated accretion flow model
Additional details
Identifiers
- DOI
- 10.1063/1.1781002;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 714
- Journal Issue
- 1
- Journal Page Range
- p. 65-70
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- Rossie and beyond
- Acronym
- X-ray timing 2003
- Dates
- 3-5 Nov 2003
- Place
- Cambridge, MA (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36070818
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ADVECTION; BLACK HOLES; CHARGE-COUPLED DEVICES; FLOW MODELS; GAMMA ASTRONOMY; MHZ RANGE; OSCILLATIONS; PERIODICITY; POWER DENSITY; SOFT X RADIATION; TIME RESOLUTION; TRANSIENTS; X-RAY SPECTROSCOPY
- Descriptors DEC
- ASTRONOMY; ELECTROMAGNETIC RADIATION; FREQUENCY RANGE; IONIZING RADIATIONS; MASS TRANSFER; MATHEMATICAL MODELS; RADIATIONS; RESOLUTION; SEMICONDUCTOR DEVICES; SPECTROSCOPY; TIMING PROPERTIES; VARIATIONS; X RADIATION
Optional Information
- Notes
- (c) 2004 American Institute of Physics