Cosmic Microwave Background map.

Astrophysics & Cosmlogy

We search for dark matter and investigate the beginning and expansion of the Universe.

Astrophysics and Cosmology

Astrophysics & Cosmology Faculty

Astrophysics & Cosmology Experiments

ALPHA, HAYSTAC, RAY

Baker, Barrett, Brown, Heeger, Lamoreaux, Lehnert, Maruyama

Science Goal: Search for axion dark matter using quantum and microwave technologies.

WL Involvement: Yale is responsible for systems engineering, cryogenics, and magnetics. Lamoreaux and Maruyama are PIs of HAYSTAC, Maruyama is deputy spokesperson of ALPHA and PI of RAY.

Inside HAYSTAC axion dark matter experiment instrument.

CHIME

Newburgh

Science goal: Measure the expansion history of the Universe and discover insights about dark energy. 

WL involvement: The Newburgh group uses a technique called holography to map the beam shape of CHIME to be able to identify and remove emission from unintended sources.

CHIME radio telescopes.

CMB-S4

Newburgh

Science Goal: Make measurements of the Cosmic Microwave Background with an order of magnitude greater than any current experiment.

WL Involvement: Newburgh leads the data acquisition and control group, mainly building software to control and acquire data from the telescopes.

CMB-S4 telescope.

COSINE-100

Maruyama

Science goal: Search for direct detection of dark matter, probing for an annual modulation in the signal reported by the DAMA/ LIBRA collaboration.

WL involvement: Maruyama is the PI and scientific co-spokesperson of COSINE-100.

COSINE crystals in the detector

DESI

Baltay

Science goal: Measure the effects of dark energy on the expansion of the Universe

WL involvement: The Yale Fiberview Camera—designed, built, and installed by the Baltay group at Wright Lab—is an integral part of the efficiency and precision of DESI.

DESI

HIRAX

Newburgh

Science goal: Study high-redshift large-scale structure for a constraint on dark energy and transient science to understand the nature of Fast Radio Bursts (FRBs).

WL involvement: The Newburgh group is leading the development of techniques, hardware, and analysis to measure and map the HIRAX beam shape with a quadcopter drone.

HIRAX Telescope

IceCube

Maruyama

Science goal: Search for neutrinos by studying exploding stars, gamma-ray bursts, black holes, and neutron stars.

WL involvement: The Maruyama group studies how supernovae explode, as well as fundamental properties of neutrinos.

IceCube Neutrino Observatory

La Silla-QUEST/La Silla Schmidt Southern Survey

Baltay

Science goal: Study the expansion of the Universe and dark energy.

WL involvement: The Baltay group’s work has improved the precision of the Hubble constant measurement using supernovae and variable stars as calibration standards, such that it is now better than the unexplained discrepancies. 

La Silla-QUEST

Roman Space Telescope

Baltay

Science goal: Study the nature of the  mysterious acceleration of the expansion of the Universe and dark energy.

WL involvement: Baltay and his collaborator Saul Perlmutter (U.C. Berkeley) have advised NASA for many years on the design and use of the Roman Space Telescope for a supernova survey. The telescope is expected to launch in 2026.

Roman Space Telescope

Simons Observatory

Newburgh

Science goal: Probe the Cosmic Microwave Background to learn more about the beginning of the Universe. 

WL involvement: The Newburgh group is part of the team commissioning SO. Newburgh leads the data acquisition and control group, mainly building software to control and acquire data.

Simons Observatory telescope.

Astrophysics and Cosmology News