Supermassive, Intermediate & Stellar Mass Black Holes, White Dwarfs, Neutron Stars, Pulsars, Tidal Disruption Events
Image Credit: Aaron Geller/CIERA
Supermassive black holes at the centers of galaxies, elusive intermediate mass black holes, and dead stars in the form of black holes, neutron stars, or white dwarfs, are the densest objects in the Universe. They are central players in much of modern astrophysics, but we have only been aware of and studying these objects for less than a century. Our observational record is less than five decades long. As such, there are still many unanswered questions about how these systems form and evolve over cosmic time. CIERA is home to a broad group of researchers in theory, simulation, and observation that study these exotic objects.
Research at CIERA
Few things in the Universe are as dramatic as the death of a star. Transient events like supernovae, gamma ray bursts, and tidal disruptions of stars encountering massive black holes, are all astoundingly bright and carry information about the star that died, how it tore itself apart, and the fragments that remain.
Professor Fong observes short gamma ray bursts to learn about the neutron star and black hole mergers that give rise to these intense explosions.
Professor Miller observes Type Ia supernovae to understand the conditions and environments under which white dwarf stars explode.
Opportunities
Deadline: 6:00pm, November 6, 2025
Apply for a Brinson Prize Fellowship at CIERA! The Space Telescope Science Institute (STScI) is collaborating with The Brinson Foundation to further the Brinson Prize Fellowship program. These fellowships are awarded to early career astrophysicists and cosmologists who are committed to chasing bold ideas with creative, nimble, and innovative research. See full details and to
Deadline: 11:59pm, November 21, 2025
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 (learn more about CIERA’s programs and activities). Candidates in all areas of astronomy and astrophysics are
Deadline: 11:59pm, December 15, 2025
The Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) at Northwestern University invites applications for postdoctoral associate positions in observational and theoretical astronomy and astrophysics starting in fall 2026. 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
Deadline: 11:59pm, December 31, 2025
CIERA supports a wide range of interdisciplinary projects focused on research, education, and public outreach in Astrophysics. Our faculty and postdocs work on projects that couple astronomy and astrophysics analysis with many other disciplines: computer science, applied math, planetary sciences, electrical engineering, mechanical engineering, data science, science education, and more. Many have hired/mentored undergraduate researchers
News
Gallery
Missing wind from Milky Way’s giant black hole finally found
Missing wind from Milky Way’s giant black hole finally found
A cone-shaped cavity defined by an absence of cold gas points to a hot plasma wind blowing out from Sagittarius A*.
Credit: M. D. Gorski/E. Murchikova
A cosmic love story
A cosmic love story
In a study fit for Valentine’s Day, Northwestern University astrophysicists discovered that binary black holes — when formed in crowded clusters of stars — align their spins before merging together. As the black holes orbit one another, each object has its own spin. Previous research indicated these spins should be chaotic and random. However, in
Fulya Kıroğlu (Northwestern University)
- Science
A cosmic love story
A cosmic love story
In a study fit for Valentine’s Day, Northwestern University astrophysicists discovered that binary black holes — when formed in crowded clusters of stars — align their spins before merging together. As the black holes orbit one another, each object has its own spin. Previous research indicated these spins should be chaotic and random. However, in
Jamie Lombardi / Allegheny College
- Science
2024 CIERA public lecture – “The Jazz of Physics” with Stephon Alexander
2024 CIERA public lecture – “The Jazz of Physics” with Stephon Alexander
On November 14, over 300 people packed Northwestern University’s Lutkin Hall to join Professor Stephon Alexander in a celebration of The Jazz of Physics for CIERA’s 15th anniversary public lecture. Over 100 others joined the livestream for an evening that began with a live jazz performance from the Star Eyes Initiative, followed by Prof. Alexander’s public lecture, and concluded with a
- Interdisciplinary,
- Outreach,
- Event
Dense, swirling winds help supermassive black holes grow
Dense, swirling winds help supermassive black holes grow
By studying nearby galaxy ESO320-G030, a team of international astronomers led by CIERA Postdoctoral Fellow Mark Gorski has discovered extremely dense and powerful rotating, magnetic winds help the galaxy’s central supermassive black hole grow. This image, created by CIERA Professor Aaron Geller, depicts this phenomenon. The process is strikingly similar to the birth of new
M. D. Gorski/Aaron M. Geller
- Science
3rd annual Astronomy Night Out – “Tuning into the Cosmic Symphony: Pulsar Timing, the Gravitational Wave Background, and Beyond”
3rd annual Astronomy Night Out – “Tuning into the Cosmic Symphony: Pulsar Timing, the Gravitational Wave Background, and Beyond”
On Friday, May 17, 2024, CIERA welcomed 170 in-person and 25 remote participants to its 3rd annual Astronomy Night Out, an evening dedicated to sharing astronomy with the community through a variety of formats. The keynote public lecture was presented by CIERA-Adler Postdoctoral Fellow Caitlin Witt and entitled, “Tuning into the Cosmic Symphony: Pulsar Timing, the Gravitational Wave
- Outreach,
- Event,
- Education
People
Core Faculty
Tarraneh Eftekhari
Assistant Director of CIERA, Research Assistant Professor
Vicky Kalogera
Daniel I. Linzer Distinguished University Professor, Director of CIERA, Director of the SkAI Institute
External Faculty
Shane L. Larson
Adjunct Professor; Professor and Director of Integrated Engineering and Applied Science Projects at Clarkson University
Diego Muñoz
Assistant Professor, Northern Arizona University
Postdocs
Yongseok Jo
SkAI Postdoctoral Fellow
Research Staff
Graduate Students
NU SkAI Personnel
Yongseok Jo
SkAI Postdoctoral Fellow
Vicky Kalogera
Daniel I. Linzer Distinguished University Professor, Director of CIERA, Director of the SkAI Institute