What are latest results announced by Baryon Oscillation Spectroscopic Survey (BOSS) program?

Biswajoy Brahmachari @Biswajoy-Brahmachari

04 August 2016 1 9K Report

A detailed 3D map of galaxies will shed information on the abundance of dark matter and dark energy. Are there any surprises?

Biswajoy Brahmachari

Dear Michael,

Thanks a lot for the references. I have found a discussion on latest results from BOSS program in CERN courier September 2016 issue. It says that there is a connection between baryon acoustic oscillations with clustering of galaxies which happened 7-12 billion years after the time of decoupling of radiation from matter in early universe. According to Rita Tojeiro of the University of St Andrews https://www.researchgate.net/profile/Rita_Tojeiro, it is an observed effect which was caused by the primordial process of recombination.

Ref. http://cerncourier.com/cws/article/cern/65805

Badges
Science topic

Similar topics
Physics
Cosmology

More Biswajoy Brahmachari's questions See All

Can anyone help me with an error message for a gaussian calculation?

Old state 1 matches converged state 1 Overlap= -0.003730 error= 9.963D-01 Failed to match previous state. I was doing a TD-DFT calculation on a dianion system

04 February 2024 2,668 0 View

Whole cell expression of Ki67. Any experience?

Hi I have treated my cells with an agent that causes my fibroblasts 3t3 to rapidly multiply. When I counted my cells, I found that the cells are almost double of control. I wanted to validate...

21 September 2020 5,624 0 View

How do I extract cells from 3 D gelatin hydrogels for protein extraction?

I grow cells in defined 3D hydrogels and the cells get impregnated within. I want to get a good yield of the cells for protein extraction. Has anyone worked with cell extraction from gelatin...

16 July 2020 5,071 3 View

Generalization of angular momentum in 4 space-time dimensions; how to understand angular momentum of a black hole?

L= r x p is a 3 dimensional relation. In 4 dimensions r and p are 4 vectors and L is a 4x4 matrix. We want to discuss conservation laws related to angular momentum in 4 space time dimensions. Then...

11 September 2016 1,380 8 View

Can we discuss some simple examples of non-local interactions in extra dimensional models ?

Action at a distance is the simplest non-local interaction. But then in relativistic local field theories signals cannot travel at velocities more than the speed of light. This is taken into...

03 June 2015 2,257 14 View

What are possible experimental or observational signatures of cosmological domain walls?

Domain walls or boundaries are expected to form when a discrete symmetry is broken spontaneously. REF: Y. B. Zeldovich, I. Y. Kobzarev and L. B. Okun, Zh. Eksp. Teor. Fiz. 67 (1974) 3 [Sov. Phys....

18 February 2015 2,712 2 View

Why was the Newtonian notion of "action at a distance" replaced by local interactions in Einstein's gravity?

In Newtonian notion force between to masses m1 and m2 separated by a distance d is simply G m1 m2/d^2. This is an example of a theory which accepts action at a distance. A second example is...

16 June 2014 10,150 40 View

How can we understand the nature of dark energy by examining the equation of state ?

Nature of dark energy is unknown. It is a form of energy causing expansion of universe. Satellite based experiments such as Planck has estimated that 68.3 % of total matter and energy is in the...

09 June 2014 2,455 27 View

How can one explain existence of acoustic peaks in cosmic microwave background anisotropies?

When delta T/T is plotted against angular separations between points we see several peaks in the plot. The first one is most prominent one is between l value 200-300, or in terms of angular scales...

16 May 2014 8,581 16 View

What are the production and decay channels of a 7 keV sterile neutrino?

A 7 keV sterile neutrino is a good candidate for warm dark matter. What are the feynman diagrams by which a 7 keV sterile neutrino can be produced? What are the decay channels? By which diagram...

10 April 2014 5,903 3 View

How to develop investments in renewable energy sources?

08 August 2024 5,112 3 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Is artifacts in XPS possible to build high deviation in binding energy larger than 5 eV??

Hello. Thanks for your consideration to see my question. Recently, I conducted XPS anaylsis of g-CN that is prepared from thermal polycondensation of DCDA, so-called conventional bulk-g-CN,...

30 July 2024 9,824 2 View

Is there a database with onshore wind production for the wind farms in Portugal?

I am looking to predict some production for future onshore wind energy production in Portugal, is there any database with info of performances of the existing wind farms in the country? something...

28 July 2024 1,750 1 View

HAs anyone used TGA to find activation enegy of water evaporation?

I have different polymer solutions and I hypothesize that water molecules are retained based on the water-polymer interactions, so the amount of free water is less to intercat with drug tablet....

28 July 2024 9,545 6 View

In terms of chaos, what is the necessary and sufficient condition for authoritarianism, permanent or temporary, to come to exist and persist?

Since 2016 Brexit, the world needed to change the thinking behind traditional democracy as the democratic landscape changed, yet traditional democratic thinkers and actors have been acting as if...

28 July 2024 6,515 1 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Can anyone kindly suggest research topics in the area of thermodynamics, heat transfer, fluid mechanics or renewable energy?

I am an undergraduate mechanical engineering student seeking suggestions on topics related to either thermodynamics, fluid mechanics, heat transfer or renewable energy for my final year project....

24 July 2024 4,058 5 View