Events Archive

Gravity Group Seminar

Gravity Group Seminar, Cyrille Doux (APC, France)

Fri, Feb 24, 2017, 12:00 pm

TITLE
Cosmic microwave background lensing and Lyman-α forest bispectrum

ABSTRACT

Gravity Group Seminar, Lasha Berezhiani, Princeton University

Fri, Feb 17, 2017, 12:00 pm

TITLE
Cosmic Acceleration without Dark Energy

ABSTRACT

Gravity Group Seminar, Marc Casals, CBPF (Brazil) "Classical Instability, Tails and Self-force on a Rotating Black Hole Space-time"

Fri, Feb 10, 2017, 12:00 pm

TITLE
Classical Instability, Tails and Self-force on a Rotating Black Hole Space-time

ABSTRACT

Gravity Group Seminar, Roberto Puddu, Pontificia Universidad Católica de Chile

Fri, Feb 3, 2017, 12:45 pm

TITLE
QUBIC and the bolometric interferometry concept

ABSTRACT

Gravity Group Seminar, Corwin Shiu and Vy Luu (Princeton University)

Fri, Jan 27, 2017, 12:00 pm

SPEAKER
Corwin Shiu, Princeton University

TITLE
Design and performance of planar-wideband slotted bow-tie antennas for CMB detection

ABSTRACT

Gravity Group Seminar, Johan Samsing, Princeton University

Fri, Jan 20, 2017, 12:00 pm

TITLE
Dynamical Formation of High-Eccentricity Gravitational Wave Mergers and Nuclear Transients

ABSTRACT

Gravity Group Seminar, Simone Aiola (Princeton University)

Fri, Jan 13, 2017, 12:00 pm to 1:00 pm

TITLE From Time-Ordered Data to Cosmology with the Atacama Cosmology Telescope ABSTRACT The bolometric polarimeter at the focal plane of the Atacama Cosmology telescope (ACTPol) allows us to map the Cosmic Microwave Background (CMB) with high signal-to-noise both in temperature and polarization.

Gravity Group Seminar, Steven Benton & Shuay-Pwu (Patty) Ho (Princeton University)

Fri, Dec 16, 2016, 12:00 pm to 1:30 pm

Steve Benton "Report on SuperBIT's 2016 Test Flight" ABSTRACT | SuperBIT is a wide-field sub-arcsecond imaging telescope for visible and near UV/IR wavelengths. It is designed to operate in the space-like environment of the Super-Pressure Balloon platform at an altitude of 35 km. During a 100 day flight it will infer masses of hundreds of...

Gravity Group Seminar, Mathew Madhavacheril (Princeton University)

Fri, Dec 9, 2016, 12:00 pm to 1:30 pm

TITLE Cosmology with the Longest Lever Arm using CMB Lensing ABSTRACT The cosmic microwave background (CMB) provides a snapshot of the universe at a redshift of around 1100. At the same time, it acts as a backlight that is gravitationally lensed by structure that formed at low redshifts.

Gravity Group Seminar, François Boulanger (Institut d'Astrophysique Spatiale, Orsay, France)

Fri, Dec 2, 2016, 12:00 pm to 1:30 pm

TITLE The interstellar B-fields crossing primordial CMB B-modes ABSTRACT Planck, as well as balloon and ground based experiments, have measured the polarization of the sky at sub-mm and mm wavelengths with unprecedented sensitivity. The data analysis involves research in cosmology and Galactic astrophysics, which might lead to a major discovery...

Gravity Group Seminar, Stephan Schlamminger (NIST)

Fri, Nov 18, 2016, 12:00 pm to 1:30 pm

TITLE Measurements of the gravitational constant – why is a precise measurement so difficult? ABSTRACT In this presentation, I will summarize measurements of the Newtonian constant of gravitation, big G, that have been carried out in the last 30 years. I will describe key techniques that were used by researchers around the world to determine G...

Gravity Group Seminar, Anna Ijjas, Paul Steinhardt

Fri, Nov 11, 2016, 12:00 pm to 1:30 pm

TITLE Early-Universe Boot-camp Part III: The truth about bounces ABSTRACT This will be the third part of the early-universe boot-camp in which we will focus on cosmologies that replace a big bang with a big bounce.

Gravity Group Seminar, Jonathan Blackman (CIT)

Fri, Oct 28, 2016, 12:00 pm to 1:30 pm

TITLE Surrogate models of gravitational waveforms from numerical relativity simulations of black hole mergers ABSTRACT GW150914 was the first detection of gravitational waves from a binary black hole merger, bringing us into the era of gravitational wave astronomy.

Gravity Group Seminar, Ben Racine (University of Oslo) "B modes and component separation: the Gibbs sampling solution"

Fri, Oct 21, 2016, 12:00 pm to 1:30 pm

Detecting B-modes due to inflationary gravitational waves in the polarization of the Cosmic Microwave Background is one of the greatest goals of modern observational cosmology. Many experiments have been designed to detect this weak signal, and upper limits are improving year by year.

Gravity Group Seminar, Paul Steinhardt "Early Universe Bootcamp"

Fri, Oct 14, 2016, 12:00 pm to 1:30 pm

These two meetings will be a frank examination of current theories of the origin and evolution of the large-scale structure of the universe, especially aimed at experimentalists and observers, with ample time for questions and discussion.

Gravity Group Seminar, "Early Universe Bootcamp"

Fri, Oct 7, 2016, 12:00 pm to 1:30 pm

Gravity Group Seminar, Mark Kamionkowski (JHU), "Dust polarization and interstellar turbulence"

Fri, Sep 30, 2016, 12:00 pm to 1:30 pm

Perhaps the most surprising result from the Planck satellite is the observation that the E-mode power in the dust polarization is twice that in the B mode, in stark contrast to pre-Planck expectations of roughly equal dust powers in E and B modes.

Gravity Group Seminar, Ira Thorpe (NASA/GSFC), "The success of LISA Pathfinder and the prospects for a space-based gravitational wave observatory"

Fri, Sep 23, 2016, 12:00 pm to 1:30 pm

Abstract: "A space-based gravitational wave observatory targeting the milliHertz frequency band has the potential to inform many areas of physics and astrophysics including the nature of gravity in the strong-field limit, the formation and growth of massive black holes and their host galaxies, and the demographics of stellar compact objects.

Gravity Group Seminar, David Spergel (Princeton University) "NASA’s WFIRST mission"

Fri, Apr 29, 2016, 12:00 pm to 1:00 pm

Gravity Group Seminar, Nick Battaglia (Princeton University), "Weak lensing mass calibration of SZ selected clusters from ACT"

Fri, Apr 22, 2016, 12:00 pm to 1:00 pm

Maria Salatino(Princeton University), "Cold-Electron Bolometers for playing with the CMB"
Meet at 11:30 am at long table in PCTS to meet with speaker. There will be a short talk by Maria Salatino, Princeton University. See web site for information on placing food order

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