HEASARC Office
 

Upcoming Events

Tuesday, March 19, 2024
03:45 PM - 05:00 PM
ASD Colloquium (Hybrid)
Planning electromagnetic observations of LISA massive black hole binaries
Jessie Runnoe (Vanderbilt University)

Massive black hole binaries (MBHBs) with masses of 0.1-10 million Solar masses in low-redshift galaxies will be among the loudest sources of gravitational radiation at milli-Hz frequencies observable with the future Laser Interferometer Space Antenna (LISA). While the detection of such systems with LISA will be groundbreaking, we can learn a great deal more if we can also detect their electromagnetic (EM) counterparts. To help identify the counterpart, early warning from LISA on-the-fly parameter estimation will yield time-evolving constraints on sky localization, luminosity distance, chirp mass, and mass ratio. But developing strategies to pick out the EM counterpart from all the candidates in the multi-dimensional error volume of the gravitational wave source requires a detailed inventory of this volume and a systematic evaluation of the credentials of the astrophysical sources within it. With this in mind, I will review EM methods used to search for supermassive black holes, with an emphasis on some of the challenges these methods may face when translated down to lower masses relevant for LISA. I will also discuss efforts to incorporate large-area astronomical surveys in this context in order to inform joint multi-messenger detections.

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Wednesday, March 20, 2024
01:00 PM - 05:30 PM
Goddard Space Science Symposium
The Goddard Space Science Symposium is back for its 61st year of bringing the space community together to discuss the latest in the industry. More info at https://astronautical.org/events/goddard/.
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Wednesday, March 20, 2024
03:00 PM - 04:30 PM
Scientific Colloquium
THE WILLIAM NORDBERG MEMORIAL LECTURE
Cloudy with a Chance of Retrievals: Remote Sensing Cloud Radiative Properties from Space

Steven Platnick (GSFC)
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