Astronomers using the Zwicky Transient Facility (ZTF) have announced the discovery of ZTFJ1539+5027, a pair of white dwarfs that orbit one another roughly every seven minutes. This system will be a strong LISA source, detecable after roughly one week of observing and with a total signal-to-noise ratio of nearly 200 in a four-year LISA mission.
The first results from the Laser Ranging Instrument (LRI) on the Gravity Recovery and Climate Experiment Follow On (GRACE-FO) mission were published in Physical Review Letters on July 19th, 2019. The GRACE-FO mission maps the Earth's gravity field by precisely tracking the relative positions of a pair of spacecraft that orbit the Earth. The LRI makes these measurements using heterodyne laser interferometry, the same technique that will be used for LISA. These first results from LRI demonstrate nanometer-level precision over the 220km range between the GRACE-FO satellites.
The Event Horizon Telescope project, an international effort to link radio telescopes across Earth to build a planet-sized telescope with superb angular resolution has made the first image of a black hole. The image is of gas surrounding a black hole of nearly six billion solar masses in the galaxy M87. LISA will measure the mergers of massive black holes which are the ancestors of these supermassive black holes.
O3, the third observing run of the advanced ground-based gravitational wave detectors has begun after the LIGO and Virgo teams have spent over a year upgrading their instruments to improved sensitivities. O3 is expected to last for a full year with increased event rates. O3 will also feature low-latency, public alerts which will enable follow-up of gravitational wave events by a variety of astronomical facilities.
The LIGO Scientific Collaboration has released the results from their first two observing runs which includes four new black hole mergers in addition to the six previously-announced black hole mergers and the one neutron star merger. Details can be found on LIGO's O1/O2 catalog page.
The first data set for the LISA Data Challenge has been released by the LISA Consortium. If you'd like to try your hand at extracting gravitational wave sources from simulated LISA data, you can download tools and data at the Data Challenge Website. The deadline for entries to this first challenge will be near the end of 2018.
The scientific program for the 12th International LISA Symposium is now posted on the conference website . The meeting will feature talks on the LISA mission, enabling technologies, data analysis, astrophysics, and related topics. Over 200 researchers from around the world will attend the conference in Chicago July 8th-13th. Late registration will be available until the start of the conference.
The Gravity Recovery And Climate Explorer Follow-On (GRACE-FO)
mission launched from Vandenberg AFB on a mission to map the Earth's
gravitational field. While the primary spacecraft systems are a rebuild
of the original GRACE mission, GRACE-FO carries the Laser Ranging
Interferometer (LRI) technology demonstration which will use laser
interferometry to measure nanometer changes between the two GRACE-FO
spacecraft flying roughly 300km apart from one another. The LRI was
built by a US-German collaboration that includes many LISA veterans and
takes advantage of technologies that were originally developed to
support LISA. The advancement of these technologies for GRACE-FO now
adds experience that can be applied to LISA.
The LISA Symposium being held in Chicago, IL on July 8-13 is still accepting registrations. This is the 12th edition of the once-per-two-year meeting that covers all aspects of LISA including mission development, instrumentation, theory, analysis, and astrophysics. The Abstract deadline closed on May 9th, 2018.
Abstract submissions are open for the 12th International LISA Symposium, to be held 8-13 July 2018 in Chicago, IL. Submissions can be made at the abstract submission page.
The LISA Symposium is a wide-ranging conference that addresses the broad astrophysical scope of LISA science, mission, and technology development, as well as challenges and interesting questions facing the astrophysics and gravitational wave community.
If you still have not registered for the Symposium, visit the registration page.
We are looking forward to seeing you in Chicago this summer!
NASA is pleased to announce the LISA Preparatory Science (LPS) solicitation, as part of ROSES2018 (element D.13). The LPS will support science data analysis and LISA-related astrophysics research of US-based scientists. As part of the international LISA Consortium, US investigators will conduct research projects aimed at augmenting and complementing the LISA Consortium Data Analysis Work Packages as well as NASA LISA Study Office science and data activities . Proposers for the LISA Preparatory Science (LPS) solicitation should consult the LPS FAQ that is available at the NSPIRES website.
We look forward to your ideas!
Please note: Notices of Intent are mandatory for LPS and were due March 19, 2018. All questions should be addressed to the HQ POC for LPS, POC Rita Sambruna, firstname.lastname@example.org
The 12th International LISA Symposium will be held in Chicago, IL on July 8-13. This biennial meeting covers the full range of LISA topics including astrophysics, data analysis, technology development, and mission development. This year's Symposium is hosted by the Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) at Northwestern University, and co-sponsored by the American Astronomical Society. Registration and hotel reservations are open now and Abstract submission will open soon.