A variable Quasi-Periodic Ocillation in M82 X-1. Timing and spectral analysis of XMM-Newton and RossiXTE observations

Abstract

We report results from a spectral and timing analysis of M82 X-1, one of the brightest known ultraluminous X-ray sources. Data from a new 105 ks {\it XMM-Newton} observation of M82 X-1, performed in April 2004, and of archival {\it RossiXTE} observations are presented. A very soft thermal component is present in the {\it XMM} spectrum. Although it is not possible to rule out a residual contamination from the host galaxy, modelling it with a standard accretion disk would imply a black hole mass of $\approx 10^3{M}_{\odot }$. An emission line was also detected at an energy typical for fluorescent Fe emission. The power density spectrum of the {\it XMM} observation shows a variable QPO at frequency of 113 mHz with properties similar to that discovered by Strohmayer & Mushotzky (2003). The QPO was also found in 7 archival {\it RXTE} observations, that include those analyzed by Strohmayer & Mushotzky (2003) and Fiorito & Titarchuk (2004). A comparison of the properties of this QPO with those of the various types of QPOs observed in Galactic black hole candidates strongly suggests an association with the type-C, low frequency QPOs. Scaling the frequency inversely to the black hole mass, the observed QPO frequency range (from 50 to 166 mHz) would yield a black hole mass anywhere in the interval few tens to 1000 $M_{\odot }$.

arXiv commentFirst submitted to MNRAS on April 28, 2005. In the process of being accepted for publication (minor revisions requested by the referee). 9 pages, 7 figures of which 1 (Figure 5) as separate jpg file

References in corpus (27)

• Ultraluminous X-Ray Sources in External Galaxies
• A Unified Description of the Timing Features of Accreting X-ray Binaries
• Correlated X-ray Spectral and Timing Behavior of the Black Hole Candidate XTE J1550-564: A New Interpretation of Black Hole States
• Is the soft excess in AGN real?
• The ABC of low-frequency quasi-periodic oscillations in Black-Hole Candidates: analogies with Z-sources
• The Ultra-Luminous X-ray Source Population from the Chandra Archive of Galaxies
• X-ray Spectroscopic Evidence for Intermediate Mass Black Holes: Cool Accretion Disks in Two Ultra--Luminous X-ray Sources
• Chandra High-Resolution Camera Observations of the Luminous X-Ray Source in the Starburst Galaxy M82
• A unified model for the spectral variability in GRS 1915+105
• Discovery of X-ray QPOs from an Ultra-luminous X-ray Source in M82: Evidence Against Beaming
• Discovery of a Luminous, Variable, Off-Center Source in the Nucleus of M82 with the Chandra HRC
• Evidence for Harmonic Relationships in the High Frequency QPOs of XTE J1550-564 and GRO J1655-40
• Characterizing the QPO Behavior of the X-ray Nova XTE J1550--564
• A Catalog of Candidate Intermediate-luminosity X-ray Objects
• Radio Emission from an Ultraluminous X-Ray Source
• Ultra-luminous X-ray Sources in nearby galaxies from ROSAT HRI observations I. data analysis
• Discovery of a Second High Frequency QPO from the Microquasar GRS 1915+105
• Tracing the power-law component in the energy spectrum of black hole candidates as a function of the QPO frequency
• Revealing a Cool Accretion Disk in the Ultraluminous X-ray Source M81 X-9 (Holmberg IX X-1): Evidence for an Intermediate Mass Black Hole
• XMM-Newton observations of NGC 253: Resolving the emission components in the disk and nuclear area
• Detection of the Red Giant Branch Stars in M82 Using the Hubble Space Telescope
• Probable intermediate mass black holes in NGC4559: XMM-Newton spectral and timing constraints
• Stellar and gaseous abundances in M82
• The Ultraluminous X-ray Source NGC 1313 X-2 (MS 0317.7-6647) and its Environment
• First Look XMM-Newton EPIC Observations of the Prototypical Starburst Galaxy M82
• Is M82 X-1 Really An Intermediate-Mass Black Hole? X-ray Spectral and Timing Evidence
• Spectral variability in transonic discs around black holes

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