Gravitational Wave Data Analysis, Black Hole & Neutron Star Mergers, Gravitational Wave Sources & Their Electromagnetic Counterparts
Image Credit: NSF/LIGO/Sonoma State University/A. Simonnet
As a discipline, astronomy is constantly being pushed forward by new technologies that transform how we observe the Universe. Multi-messenger astronomy is the synthesis of observations using light, gravitational waves, and astro particles. Combining different information from different types of signals allows us to better understand the underlying physical processes that govern how astrophysical systems evolve and change, and helps us get a better handle on the uncertainties and statistics that are inherent to every observation we make. Additionally, numerical simulations are another type of “messenger” that can be combined with observations to better understand astrophysical phenomena. In CIERA, we have broad expertise and interest in multi-messenger astronomy, particularly at the interface of electromagnetic and gravitational-wave observations.
Research at CIERA
Compact objects, such as black holes, neutron stars, and white dwarfs, often exist in pairs which eventually merge. These systems are strong sources of gravitational waves, and their nature and the environment in which they reside has a profound effect on possible associated electromagnetic signatures.
Professor Fong’s group looks for EM counterparts to GW events with observing programs in Hawaii, Chile, and Arizona. They are particularly interested in studying short gamma-ray bursts (GRBs) whose progenitors are likely neutron star mergers with other neutron stars or black holes.
Professor Fragione studies mergers of black holes and neutron stars in star clusters and in hierarchical configurations as a source of gravitational waves, relevant for the LIGO-Virgo collaboration and the LISA mission.
Opportunity
Deadline: 11:59pm, November 22, 2022
The Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) at Northwestern University invites applications for CIERA Postdoctoral Fellowships. CIERA Fellows have the opportunity to pursue an independent research program and benefit from a diverse and dynamic intellectual environment.
Deadline: 11:59pm, November 22, 2022
Northwestern University expects to offer postdoctoral associate positions in observational astronomy and astrophysics starting in fall 2022. These positions will be part of the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) at Northwestern. Successful applicants will benefit from interaction with a broad interdisciplinary group of researchers and will be immersed in a diverse and dynamic intellectual environment.
Deadline: 11:59pm, November 22, 2022
Northwestern University expects to offer postdoctoral associate positions in theoretical astronomy and astrophysics starting in fall 2023. These positions will be part of the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) at Northwestern. Successful applicants will benefit from interaction with a broad interdisciplinary group of researchers and will be immersed in a diverse and dynamic intellectual environment.
News
Gallery
Fast Radio Bursts Host Galaxies
Fast Radio Bursts Host Galaxies
Fast radio bursts host galaxies. The bursts are catalogued as FRB 190714, at top left; FRB 191001, at top right; FRB 180924, at bottom left; and FRB 190608, at bottom right. Learn more.
Science: NASA, ESA, Alexandra Mannings (UC Santa Cruz), Wen-fai Fong (Northwestern). Image processing: Alyssa Pagan (STScI).
Afterglow from Neutron Star Merger GW170817
Afterglow from Neutron Star Merger GW170817
Neutron star merger (GW170817) and its afterglow, in relation to the brightness of the nearby galaxy (center). Learn more.
Wen-fai Fong/Northwestern University
CBS Women’s History Month 2021
CBS Women’s History Month 2021
Vicky Kalogera is a professor of physics and astronomy at Northwestern University and Director of the CIERA Center – leading research, studying the cosmos and making new discoveries. This interview is a special Women’s History Month 2021 segment for CBS Chicago.
- Outreach
Bad Astra Interviews Maya Fishbach
Bad Astra Interviews Maya Fishbach
Maya Fishbach uses gravitational waves to probe the universe’s most extreme objects — black holes and neutron stars. Her research aims to understand where, when and how these systems of merging compact objects are made. As a member of the LIGO Scientific Collaboration, she analyzes gravitational-wave data to study the population properties of colliding black
- Outreach
LIGO-Virgo-KAGRA Discoveries Over Time
LIGO-Virgo-KAGRA Discoveries Over Time
This animation shows the increasing sample of gravitational wave sources, starting before LIGO-Virgo-KAGRA went online (with only electromagnetic, EM, sources) and then moving through the three main data releases that are now available (GTWC-1, GWTC-2.1, and GWTC-3). Watch as the sample of merging black holes and neutron stars has dramatically increased over the past few
Visualization: LIGO-Virgo-KAGRA / Aaron Geller / Northwestern
Binary Neutron Star Mergers with Gabriel Casabona
Binary Neutron Star Mergers with Gabriel Casabona
Gabriel Casabona, a theoretical astrophysicist who specializes in binary neutron star mergers, gives an interview with Suzette Lyn.
Suzette Lyn
People
Core Faculty
Vicky Kalogera
Daniel I. Linzer Distinguished University Professor, Director of CIERA
Shane Larson
Research Professor, Associate Director of CIERA
Associate and Affiliate Faculty
Suzan van der Lee
Professor, Director of Graduate Studies, Director of Computing
Postdocs
Reed Essick
Visiting Scholar, Senior Postdoctoral Fellow at the Perimeter Institute for Theoretical Physics
Graduate Students
