4,615 results for Pick Background Background

arxiv.org/abs/2202.10476v1

Cotton Double Copy for Gravitational Waves

We construct a double copy relation between the Cotton spinor and the dual field strength spinor of topologically massive theories, as the three-dimensional analogue of the Weyl double copy. The relationship holds in curved backgrounds for wave solut...

arxiv.org/abs/astro-ph/9602105v1

A Weak Gravitational Lensing Analysis of Abell 2390

We report on the detection of dark matter in the cluster Abell 2390 using the weak gravitational distortion of background galaxies. We find that the cluster light and total mass distributions are quite similar over an angular scale of $\simeq 7^\pr...

arxiv.org/abs/1204.2381v1

Terahertz hot electron bolometer waveguide mixers for GREAT

Supplementing the publications based on the first-light observations with the German Receiver for Astronomy at Terahertz frequencies (GREAT) on SOFIA, we present background information on the underlying heterodyne detector technology. We describe the...

www.reddit.com/r/romancenovels/comments/1qqcrke/fifteen_days_before_the_apocalypse/

Fifteen Days Before The Apocalypse

Chapter 1 Fifteen Days Before The Apocalypse The news anchor's voice rang out in the background, "Flu cases are spiking lately. Please take care of your personal protection, avoid public places, don'...

www.reddit.com/r/Professors/comments/1qowzne/the_horrors_of_canvas_kaltura_video_quizzes/

The Horrors of Canvas // Kaltura video quizzes

Brief background - Every week, I record videos of 5-7 minutes each for my asynchronous online courses in order to detail the week's agenda and teach my lessons. In order to provide an incentive to wat...

www.reddit.com/r/tifu/comments/b7pvet/tifu_by_not_checking_my_shorts_before_putting/

TIFU by not checking my shorts before putting them on.

Background - My lady love (LL) and I live in a house built in the early 1900’s with mostly original everything, including the sliding no screen having windows. We typically only crack the windows o...

arxiv.org/abs/hep-th/9611039v2

Towards a non-singular pre-big bang cosmology

We discuss general features of the $β$-function equations for spatially flat, $(d+1)$-dimensional cosmological backgrounds at lowest order in the string-loop expansion, but to all orders in $α'$. In the special case of constant curvature and a line...

en.wikipedia.org/wiki/Turkish_invasion_of_Cyprus

Turkish invasion of Cyprus - Wikipedia

Turkey invaded Cyprus on 20 July 1974 in an operation that progressed in two phases over the following month. Taking place upon a background of intercommunal

www.reddit.com/r/AmItheAsshole/comments/1q24lyl/aita_for_leaving_my_mom_at_the_airport_with_no/

AITA for leaving my Mom at the airport with no ticket and no plan?

This still weighs on me. Some background: my mom was abusive growing up. It got bad enough that at 12, I left home through the courts and moved in with my dad. That decision fractured our family. On ...

arxiv.org/abs/1402.4108v1

A Guide to Designing Future Ground-based CMB Experiments

In this follow-up work to the High Energy Physics Community Summer Study 2013 (HEP CSS 2013, a.k.a. Snowmass), we explore the scientific capabilities of a future Stage-IV Cosmic Microwave Background polarization experiment (CMB-S4) under various assu...

arxiv.org/abs/2004.10207v2

Hubble constant difference between CMB lensing and BAO measurements

We apply a tension metric $Q_\textrm{UDM}$, the update difference in mean parameters, to understand the source of the difference in the measured Hubble constant $H_0$ inferred with cosmic microwave background lensing measurements from the Planck sate...

arxiv.org/abs/0710.3900v1

Law without Law

We consider a model for spacetime in which there is an ubiquitous background Dark Energy which is the Zero Point Field. This is further modeled in terms of a Weiner process that leads to a Random or Brownian characterization. Nevertheless we are ab...