| Proposal Number | Subject Category | PI Name | Chandra Time | Title |
|---|---|---|---|---|
| 24300487 | WD BINARIES AND CV | Margarita Karovska | 80.00ks | WD Periastron Passage in the R Aqr System: Zooming on the New Ejecta and Jet |
| 24700496 | ACTIVE GALAXIES AND QUASARS | Eileen T. Meyer | 160.00ks | Determining the High-Energy Emission Mechanism in Extragalactic Jets with HST |
Subject Category: WD BINARIES AND CV
Proposal Number: 24300487
Title: WD Periastron Passage in the R Aqr System:
Zooming on the New Ejecta and Jet
PI Name: Margarita Karovska
Abstract: We propose HST observations of the R Aqr
symbiotic binary system, jointly with Chandra and VLA, as a
follow up on the 2020 and 2021 archival observations which
show dramatic changes within 1 from the central binary
resulting from the enhanced accretion during the recent
periastron passage of the white dwarf (WD) accretor. These
phenomena are observable in R Aqr only about twice a century,
with the next periastron expected in about 40 years. Our goal
is to carry out a timely high-angular resolution
multi-wavelength study of this event by zooming in on the
central 3 radius circumbinary region. This will allow us to
determine the spatial/spectral evolution of the distribution
and the characteristics of the new ejecta and jet, and to gain
a unique insight into jet formation and early pr
Subject Category: ACTIVE GALAXIES AND QUASARS
Proposal Number: 24700496
Title: Determining the High-Energy Emission Mechanism
in Extragalactic Jets with HST
PI Name: Eileen T. Meyer
Abstract: N/A