Encounters
Astrophysical Jet ○꠹｜encounter｜ENC｜20260911135106-00-•
More recently, radio observations have cemented the association of the low/hard state with the presence of a compact and quasi-steady radio jet (see Fender 2006; McClintock & Remillard 2006). In brief, the evidence for the association includes the following: (a) the presence of compact jets in VLBI images of two BH sources (Dhawan, Mirabel, & Rodriguez 2000; Stirling et al. 2001); (b) correlated radio and X-ray intensities and/or the presence of flat or inverted radio spectra (e.g., Gallo et al. 2003), which allow the jet’s presence to be inferred even in the absence of VLBI images; (c) a 2% linear radio polarization at nearly constant position angle observed for GX 339–4 (Corbel et al. 2000); and (d) the frequently-observed quenching of the persistent radio emission that occurs when a BHB switches from the low/hard state to the high/soft state (e.g., Fender et al. 1999).
Source: Remillard & McClintock 2006 ┃ X-Ray Properties… ⚬𓂃
Link to original