ORAU
X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background
ORAU, Greenbelt, Maryland, us, 20771
Overview
X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background Join to apply for the
X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background
role at
ORAU Organization:
National Aeronautics and Space Administration (NASA) Reference Code:
0024-NPP-MAR26-GSFC-Astrophys How To Apply
All applications must be submitted in Zintellect Please visit the NASA Postdoctoral Program website for application instructions and requirements: How to Apply | NASA Postdoctoral Program (orau.org) A complete application to the NASA Postdoctoral Program includes: Research proposal Three letters of recommendation Official doctoral transcript documents Application Deadline:
3/1/2026 6:00:59 PM Eastern Time Zone Description
About the NASA Postdoctoral Program The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology. Description:
Clusters of Galaxies. The distribution of galaxy clusters as a function of mass and redshift probes the large-scale structure of the Universe and provides competitive constraints on cosmological models. We study X-ray emitting intergalactic medium across mass scales from galaxies to superclusters, including shock fronts and other dynamic phenomena, and the cluster nonthermal components to improve mass estimates. We use X-ray, optical, Sunyaev-Zeldovich and radio data, with X-ray data from Chandra, XMM-Newton, Swift, Suzaku and NuSTAR. Our lab contributed to Hitomi and XRISM and is developing components for Athena. We also perform high-resolution MHD simulations of clusters to compare with observations and prepare for future X-ray missions. Active Galaxies:
An ongoing program analyzes Chandra, XMM-Newton and NuSTAR AGN data, including broadband spectral fitting, temporal/spectral variations, and the nature of X-ray emission from Seyfert IIs and LINERs, with extensive correlative studies using infrared satellite and Hubble Space Telescope observations. Diffuse X-Ray Background:
The HEAO-1 and ROSAT all-sky databases are used to study high-latitude and unresolved X-ray background emission. Topics include cosmic accretion history, spatial and temporal fluctuations, cross-calibration between observatories, and planning for new missions and observations from sounding rockets, CubeSats, Explorer and Flagship missions. Location:
Goddard Space Flight Center , Greenbelt, Maryland Field of Science:
Astrophysics Advisors: Maxim Markevitch (Maxim.Markevitch@nasa.gov) Andy Ptak (andrew.ptak@nasa.gov) Francesca Civano (francesca.m.civano@nasa.gov) Eligibility:
Citizens from Designated Countries will not be accepted at this time, unless they are Legal Permanent Residents of the United States.
A complete list of Designated Countries can be found at NASA Export Control. Eligibility requirements currently open to: U.S. Citizens U.S. Lawful Permanent Residents (LPR) Foreign Nationals eligible for Exchange Visitor J-1 visa status Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms pending Questions about this opportunity? Please email
npp@orau.org Point of Contact: Mikeala Eligibility Requirements: Doctoral Degree Seniority level: Internship Employment type: Full-time Job function: Other Industries: Government Administration Referrals increase your chances of interviewing at ORAU by 2x Get notified about new X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background jobs in
Greenbelt, MD .
#J-18808-Ljbffr
X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background Join to apply for the
X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background
role at
ORAU Organization:
National Aeronautics and Space Administration (NASA) Reference Code:
0024-NPP-MAR26-GSFC-Astrophys How To Apply
All applications must be submitted in Zintellect Please visit the NASA Postdoctoral Program website for application instructions and requirements: How to Apply | NASA Postdoctoral Program (orau.org) A complete application to the NASA Postdoctoral Program includes: Research proposal Three letters of recommendation Official doctoral transcript documents Application Deadline:
3/1/2026 6:00:59 PM Eastern Time Zone Description
About the NASA Postdoctoral Program The NASA Postdoctoral Program (NPP) offers unique research opportunities to highly-talented scientists to engage in ongoing NASA research projects at a NASA Center, NASA Headquarters, or at a NASA-affiliated research institute. These one- to three-year fellowships are competitive and are designed to advance NASA’s missions in space science, Earth science, aeronautics, space operations, exploration systems, and astrobiology. Description:
Clusters of Galaxies. The distribution of galaxy clusters as a function of mass and redshift probes the large-scale structure of the Universe and provides competitive constraints on cosmological models. We study X-ray emitting intergalactic medium across mass scales from galaxies to superclusters, including shock fronts and other dynamic phenomena, and the cluster nonthermal components to improve mass estimates. We use X-ray, optical, Sunyaev-Zeldovich and radio data, with X-ray data from Chandra, XMM-Newton, Swift, Suzaku and NuSTAR. Our lab contributed to Hitomi and XRISM and is developing components for Athena. We also perform high-resolution MHD simulations of clusters to compare with observations and prepare for future X-ray missions. Active Galaxies:
An ongoing program analyzes Chandra, XMM-Newton and NuSTAR AGN data, including broadband spectral fitting, temporal/spectral variations, and the nature of X-ray emission from Seyfert IIs and LINERs, with extensive correlative studies using infrared satellite and Hubble Space Telescope observations. Diffuse X-Ray Background:
The HEAO-1 and ROSAT all-sky databases are used to study high-latitude and unresolved X-ray background emission. Topics include cosmic accretion history, spatial and temporal fluctuations, cross-calibration between observatories, and planning for new missions and observations from sounding rockets, CubeSats, Explorer and Flagship missions. Location:
Goddard Space Flight Center , Greenbelt, Maryland Field of Science:
Astrophysics Advisors: Maxim Markevitch (Maxim.Markevitch@nasa.gov) Andy Ptak (andrew.ptak@nasa.gov) Francesca Civano (francesca.m.civano@nasa.gov) Eligibility:
Citizens from Designated Countries will not be accepted at this time, unless they are Legal Permanent Residents of the United States.
A complete list of Designated Countries can be found at NASA Export Control. Eligibility requirements currently open to: U.S. Citizens U.S. Lawful Permanent Residents (LPR) Foreign Nationals eligible for Exchange Visitor J-1 visa status Applicants for LPR, asylees, or refugees in the U.S. at the time of application with 1) a valid EAD card and 2) I-485 or I-589 forms pending Questions about this opportunity? Please email
npp@orau.org Point of Contact: Mikeala Eligibility Requirements: Doctoral Degree Seniority level: Internship Employment type: Full-time Job function: Other Industries: Government Administration Referrals increase your chances of interviewing at ORAU by 2x Get notified about new X-ray Studies of Galaxy Clusters, Active Galaxies and Diffuse Background jobs in
Greenbelt, MD .
#J-18808-Ljbffr