Apparent evidence for Hawking points in the CMB Sky

Abstract: This paper presents strong observational evidence of numerous previously unobserved anomalous circular spots, of significantly raised temperature, in the CMB sky. The spots have angular radii between 0.03 and 0.04 radians (i.e. angular diameters between about 3 and 4 degrees). There is a clear cut-off at that size, indicating that each anomalous spot would have originated from a highly energetic point-like source, located at the end of inflation -- or else point-like at the conformally expanded Big Bang, if it is considered that there was no inflationary phase. The significant presence of these anomalous spots, was initially noticed in the Planck 70 GHz satellite data by comparison with 1000 standard simulations, and then confirmed by extending the comparison to 10000 simulations. Such anomalous points were then found at precisely the same locations in the WMAP data, their significance confirmed by comparison with 1000 WMAP simulations. Planck and WMAP have very different noise properties and it seems exceedingly unlikely that the observed presence of anomalous points in the same directions on both maps may come entirely from the noise. Subsequently, further confirmation was found in the Planck data by comparison with 1000 FFP8.1 MC simulations (with $l \leq 1500$). The existence of such anomalous regions, resulting from point-like sources at the conformally stretched-out big bang, is a predicted consequence of conformal cyclic cosmology (CCC), these sources being the Hawking points of the theory, resulting from the Hawking radiation from supermassive black holes in a cosmic aeon prior to our own.

• The paper demonstrates a robust detection of anomalous warm circular spots (Hawking points) in the CMB with over 99.98% confidence.
• It employs data from Planck and WMAP alongside thousands of simulated maps to isolate real signals using annular temperature gradient analysis.
• The findings support Conformal Cyclic Cosmology by suggesting that remnants of supermassive black hole evaporation are observable in the current CMB, challenging conventional inflationary models.

An Analysis of Apparent Evidence for Hawking Points in the CMB Sky

The paper "Apparent evidence for Hawking points in the CMB Sky" by An, Meissner, Nurowski, and Penrose explores substantial observational evidence for numerous previously undetected anomalous circular spots in the CMB (Cosmic Microwave Background) sky with increased temperature. These findings are argued to align with the concept of Hawking points, which are anticipated by the theory of Conformal Cyclic Cosmology (CCC).

Conformal Cyclic Cosmology (CCC)

CCC is an alternative cosmological theory proposed by Penrose and others, which suggests that the universe is an endless sequence of 'aeons,' each initiated by a Big Bang followed by an exponential expansion driven by a cosmological constant, $\Lambda$. CCC posits that conformal transformations can relate the ending of one aeon to the beginning of another. Consequently, the radiation associated with the final evaporation of supermassive black holes in the previous aeon becomes observable within the CMB as they traverse the crossover into our current aeon. These are coined as Hawking points.

Methodology and Observations

The authors conducted a rigorous analysis using data from both the Planck and WMAP satellites, which have different noise characteristics, strengthening the findings' reliability. Spots were identified in both datasets, suggesting these features are not merely noise-related artifacts. The analysis included comparison with thousands of simulated cosmic maps (conventional Planck simulations, FFP8.1 MC simulations) using the CMB power spectrum. A key aspect of the search was to examine annular regions for temperature gradients indicating raised temperatures at their centers, aligned with the CCC predictions for Hawking points.

The procedure revealed robust signals at a greater than 99.98% confidence level, indicating the presence of energetic small circular regions. Notably, these regions displayed a sharp cut-off in size at approximately 0.08 radians in angular diameter, consistent with predictions from CCC. This cut-off constrains the diameter to a causally plausible size from the intersection of a past light cone with such a heated region established near the Big Bang of the current aeon.

Implications and Theoretical Context

This work provides significant evidence favoring CCC's claim that Hawking points should indeed exist in the CMB data. The identification of thermal anomalies in the CMB supports the notion that supermassive black holes from a previous aeon can leave detectable impressions in our current cosmic epoch, posing challenges to the conventional inflationary cosmological model.

These findings, if validated with further analysis and deeper scrutiny through other cosmological data and methodologies, could motivate a reevaluation of universe models and prompt integration of alternative explanations within or complementary to the existing inflationary framework.

Future Prospects

The paper opens the floor for potential advancements in both observational techniques and theoretical development in cosmology. Further implications may include:

• Refinement of the CCC model to account for complex cosmological observations
• Enhanced analytical methods for differentiating CCC signals from noise or confounding artifacts in CMB data
• Cross-correlation of CMB results with observational data from other cosmic probes or phenomena

In summary, the research presented provides a compelling basis for CCC and stimulates extensive future discussions regarding the fundamental nature of our universe's lifecycle and the legacy of cosmic events from antecedent aeons into the observable present.