Complete Science & Technical News Portal

- The Methodological Aspect of Development and Application Multivariate Classification G-mode for Analyses Geochemical Trend
- Estimating the Stability of a Delayed SIQRS Model with Temporary Immunity
- Study on Finite Dimensional Imprecise Numbers
- Recent Study on a High-Precision Registration Technology Based on Bundle Adjustment in Structured Light Scanning System
- Implementing and Solving Games with Best Payoff Method
- Customized Bubble Continuous Positive Airway Pressure (BCPAP) Device at the National Hospital Abuja Gives Immediate Clinical Improvement (Respiratory Rate, Grunting and Oxygenation) in Neonates with Respiratory Distress
- Experimenting on Spline Solution of Linear Seventh Order Boundary Value Problems Using Tenth Degree Functions and Comparison with Different Degrees of Spline Solutions
- Research on the Existence and Uniqueness of Limit Cycles in a Class of Planar Differential Systems
- The Research for Discovering Monthly Fuzzy Patterns
- Recognition and Prevention of Ocular Morbidity Due to Retinopathy of Prematurity in High Risk Twin Infant Pairs

It is shown in Einstein gravity that the cosmological constant Λ introduces a graviton mass mg into the theory, a result that will be derived from the Regge-Wheeler-Zerilli problem for a particle falling onto a Kottler-Schwarzschild mass with Λ≠ 0. The value of mg is precisely the Spin-2 gauge line appearing on the Λ-mg2 phase diagram for Spin-2, the partially massless gauge lines introduced by Deser & Waldron in the (mg2, Λ) phase plane and described as the Higuchi boundmg2= 2Λ/3. Note that this graviton is unitary with only four polarization degrees of freedom (helicities ±2, ±1, but not 0 because a scalar gauge symmetry removes it). The conclusion is drawn that Einstein gravity (EG, Λ≠ 0) is a partially massless gravitation theory which has lost its helicity 0 due to a scalar gauge symmetry. That poses a challenge for gravitational wave antennas as to whether they can measure the loss of this gauge symmetry. Also, given the recent results measuring the Hubble constant Ho from LIGO-Virgo data, it is then shown that Λ can be determined from the LIGO results for the graviton mass mg and Ho. This is yet another multi-messenger source for determining the three parameters Λ, mg, and Ho in astrophysics and cosmology, at a time when there is much disparity in measurements of Ho.

**Author(s) Details**

** Thomas L. Wilson NASA, **

Johnson Space Center, Houston, TX, USA.

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/210

Related Posts