On the Origin of Radio Emission in the X-Ray States of XTE J1650–500 during the 2001-2002 Outburst

By S. Corbel, Robert P. Fender, J. Tomsick, A. Tzioumis, S. Tingay. 2004

159 citations recorded by the source corpus.

We report on simultaneous radio and X-ray observations of the black hole candidate XTE J1650-500 during the course of its 2001-2002 outburst. The scheduling of the observations allowed us to sample the properties of XTE J1650-500 in different X-ray spectral states, namely, the hard state, the steep power-law state, and the thermal dominant state, according to the recent spectral classification of McClintock & Remillard. The hard state is consistent with a compact jet dominating the spectral energy distribution at radio frequencies; however, the current data suggest that its contribution as direct synchrotron emission at higher energies may not be significant. In that case, XTE J1650-500 may be dominated by Compton processes (either inverse Comptonization of thermal disk photons and/or synchrotron self-Compton radiation from the base of the compact jet) in the X-ray regime. We surprisingly detect a faint level of radio emission in the thermal dominant state that may be consistent with the emission of previously ejected material interacting with the interstellar medium, similar (but on a smaller angular scale) to what was observed in XTE J1550-564 by Corbel and coworkers. Based on the properties of radio emission in the steep power-law state of XTE J1650-500 and taking into account the behavior of other black hole candidates (namely, GX 339-4, XTE J1550-564, and XTE J1859+226) while in the intermediate and steep power-law states, we are able to present a general pattern of behavior for the origin of radio emission in these two states that could be important for understanding the accretion-ejection coupling very close to the black hole event horizon.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ec57412b59e3ad990af18c76afcd5cbf8ecc1378

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In Astronomy and Astrophysics

1. Robert P. Fender
2. T. Belloni
3. E. Gallo
4. J. Homan
5. G. Sivakoff
6. Stéphane Corbel
7. C. Heinke
8. A. Tzioumis

In Nuclear and High Energy Physics

1. Robert P. Fender
2. T. Belloni
3. J. Homan
4. E. Gallo
5. A. Tzioumis
6. Stéphane Corbel
7. G. Sivakoff
8. C. Brocksopp

Citations in the corpus

• WATCHDOG: A COMPREHENSIVE ALL-SKY DATABASE OF GALACTIC BLACK HOLE X-RAY BINARIES (2015, background): “…[201] Tomsick et al. (2001b), [202] Curran & Chaty (2013), [203] Starling et al. (2008), [204] Markwardt et al. (2008c), [205] Remillard (2001), [206] Corbel et al. (2004), [207] Rossi et al. (2004), [208] Tomsick et al. (2004), [209]Ozel et al. (2010), [210] Hiemstra et al. (2011), [211]…”
• No evidence for black hole spin powering of jets in X-ray binaries (2010, background): “Nevertheless we can make a comparison, and for this purpose we will use the transient jet powers estimated in FBG04, compared with the spin measurements compiled in this paper.”
• The 'universal' radio/X-ray flux correlation : the case study of the black hole GX 339-4 (2012, background): “A growing number of sources (originally XTE J1650−500 (Corbel et al. 2004), IGR J17497−2821 (Rodriguez et al. 2007), Swift J1753.”
• A global spectral study of black hole X-ray binaries (2009, unknown): “…,(28) Angelakis & Kraus (2005) , (29) Rupen et al. (2005g) , (30) Rupen et al. (2005c) , (31) McClintock et al. (2001) , (32) Pooley (2001) , (33) Corbel et al. (2004) , (34) Brocksopp et al. (2005b) , (35) Brocksopp et al. (2007) , (36) Hjellming et al.(1998a) , (37) Strohmayer et al. (1998) ,…”
• Jets from black hole X-ray binaries: testing, refining and extending empirical models for the coupling to X-rays (2009, background): “It seems clear that the jet does remain on until at least the moment of the radio flare , i.e. in the hard-intermediate state,during the overall hard→ soft transition (see Fig 1; also FBG04 and Corbel et al. 2004).”
• Radiatively efficient accreting black holes in the hard state: the case study of H1743-322 (2011, methodology): “However, in the following years, a few galactic black hole candidates (BHCs) were found to lie well outside the scatter of the original radio/X-ray correlation (e.g., XTE J1720-318, Brocksopp et al. 2005; XTE J1650-500, Corbel et al. 2004; IGR J17497−2821, Rodriguez et al. 2007; Swift J1753.”
• The evolution of the timing properties of the black-hole transient GX 339-4 during its 2002/2003 outburst (2005, unknown): “There is evidence that the ejection of relativistic jets takes place during some state transitions (see Fender et al. 2004; Corbel et al. 2004) and it is during these intervals that structural changes take place in the accretion flow.”
• A Unified Model for Black Hole X-Ray Binary Jets? (2004, background): “Based on a recent study of XTE J1650-500, Corbel et al. (2004) have alsoconcluded that the steady jet may persist beyond the initial softening of the canonical LS.”