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Technology

Time: 2024-11-16

Gravitational Lensing Breakthrough: Latest Hubble Constant Discovery

Gravitational Lensing Breakthrough: Latest Hubble Constant Discovery
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The magnetize sight in the galaxy bunch PLCK G165.7 + 67.0 capture by the JWSTs approach-infrared camera uncover three distinct point of light from a single type Ia supernova. This cosmic illusion is a consequence of gravitational lensing, where the huge gravity of a foreground galaxy decompression_sickness and magnify light from the distant supernova.

type Ia supernova are trip by material fall onto a White dwarf, result in a massive thermonuclear explosion. These cosmic explosion serve as standard candle due to their consistent brightness, help astronomer in measurement huge cosmic distance and calculate the Hubble constant.

The detect supernova date back 10.2 billion old_age, offer a alone opportunity to survey the early universe and its expansion. By analyze time delay between the three lensed image and integrate them into gravitational lensing model, research_worker have obtain a new measurement of the Hubble constant.

The latest findings from the JWST attention_deficit_disorder another layer to the ongoing argument surround the Hubble tension. This perplex issue originate from conflict measurement of the universe's expansion rate, depend on which part of the universe is detect. The discrepancy endanger to sabotage our current model of the universe.

Two primary method for determine the Hubble constant include analyze fluctuation in the cosmic microwave background and measurement distance exploitation Cepheid variable star. The cosmic microwave background method output an expansion rate of approximately 67 kilometer per second per megaparsec, align with prediction from the standard model of cosmology. However, measurement exploitation Cepheid variable produce a significantly higher value of 73.2 kilometer / second / Mpc.

The new survey exploitation the gravitationally-lensed supernova detect by JWST has yield a Hubble constant value of 75.4 kilometer / second / Mpc ( with a margin of mistake of +8.1 or -5.5 ). This consequence further contradict the standard model and intensify the Hubble tension mystery.

The ongoing Hubble tension hour_angle profound deduction for our understanding of the universe's fundamental nature. conflict measurement challenge the understanding of dark energy drive the universe's expansion at a constant rate. Dr. Brenda Frye, an associate professor of astronomy at the University of Arizona and carbon_monoxide-writer of the survey, foreground the significance of their findings.

As astronomer continue to grapnel with this cosmic puzzle, the James Webb Space Telescope's advance capability offer new avenue for exploration. research_worker plan to gather extra data from other explode star throughout the galaxy, hope to shed More light on this perplex discrepancy in our understanding of the universe's expansion.

The pursuit to resoluteness the Hubble tension remains ongoing, with assorted research group prosecute different fact-finding approach. The James Webb telescope's observation of ancient supernova play_back through cosmic time deflection may prove instrumental in unravel the mystery of universal expansion.

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