GRB 250702B in QFunity

GRB 250702B in QFunity

A unique transient as EPT torsion discharge

Overview of GRB 250702B

The article « The Day-long, Repeating GRB 250702B: A Unique Extragalactic Transient » (DOI: 10.3847/2041-8213/adf8e1)) describes a rare day-long repeating GRB, detected multiple times by Fermi and Einstein Probe, with X-ray emission preceding gamma bursts. QFunity interprets this as an EPT-linked progenitor with torsional discharges.

1. Summary of the Article

The event is unusual:

  • Repeating over hours, triggering Fermi GRB Monitor thrice.
  • X-ray detection (Einstein Probe) hours before gamma bursts.
  • Total duration ~1 day, unlike standard GRBs.

This challenges standard models (hypernovae for long GRBs, mergers for short), suggesting a different progenitor and mechanism.

2. QFunity Interpretation: EPT-Linked Progenitor

QFunity suggests a compact object interfacing with the EPT, leading to torsional energy accumulation and discharges.

2.1 Progenitor: Compact Object in EPT Stress

A ultra-dense object (exotic neutron star, primordial black hole) acts as an EPT anchor, with \(\hat{\mathbb{B}}_\epsilon\) inducing torsion stress at \(\epsilon \sim \ell_P\).

2.2 Emission Mechanism: Repeated Torsional Eruptions

\[ \left[ \hat{\mathbb{B}}_\epsilon \hat{\mathbb{V}}_\epsilon – \hat{\mathbb{V}}_\epsilon \hat{\mathbb{B}}_\epsilon^2 \right] \Psi \neq 0 \]

Process:

  1. Torsion energy accumulates (\(\hat{\mathbb{B}}_\epsilon\)).
  2. Critical threshold triggers discharge.
  3. Repetition restarts the cycle, lasting ~1 day.

Proof Request:

Search for similar repeating GRBs with X-γ sequences.

2.3 Emission Sequence: X-rays First, Then Gamma

Interpretation:

V_ϵ restructures first (low-frequency X-rays), followed by B_ϵ relaxation (high-frequency gamma).

Proof Request:

Analyze X-γ delays in repeating GRBs for torsion signatures.

2.4 Rarity: Local EPT Perturbation

Requires specific density/rotation for EPT interaction.

\[ \Omega_{\text{QF}} \sim \frac{\kappa G M \omega}{c^3 \epsilon^2} > \Omega_{\text{crit}} \]

Proof Request:

Model progenitors with EPT stress thresholds.

Conclusion

GRB 250702B is an EPT torsion discharge, validating QFunity’s framework.

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