The Energetics of the Oxygen Rich Supernova Remnant G292.0+1.8

This is the phase I APT file for an accepted Joint XMM-Newton/HST/Chandra proposal. I specified CVZ time in the proposal, but that appears unschedulable in the upcoming cycle, so I will work with the planners on setting up the observtions to maximize our science return. -144754557 Assigned ID: 6052 ----- Attempting Submission 1 (Fri Dec 27 15:43:12 GMT 2024) ----- Updated submission w/ ORIENT constraints added back in, after confirmation from the TTRB 2021411572 ----- Attempting Submission 1 (Wed Jan 22 20:06:41 GMT 2025) ----- HST Phase II Proposal 17901 successfully submitted. Receipt: # 17901-1 ----- Attempting Submission 2 (Sun Mar 16 19:24:29 GMT 2025) ----- HST Phase II Proposal 17901 successfully submitted. Receipt: # 17901-2 ----- Attempting Submission 3 (Mon Mar 31 15:21:11 GMT 2025) ----- The Energetics of the Oxygen Rich Supernova Remnant G292.0+1.8 The composition and dynamics of supernova remnants inform us on the explosion mechanism of the supernova and the evolution of the progenitor. The Galactic remnant G292.0+1.8 is an evolved remnant rich in emission from shocked ejecta and circumstellar material. It is also optically bright in [OIII] emission. Here we propose for a 500ks observation of G292. We will perform Doppler tomography on the ejecta in order to measure their 3D dynamics. Additionally, we request 100ks of Chandra ACIS-I time to measure the expansion of the forward shock and motion of the pulsar, and 8 orbits of HST/ACS time to measure the transverse motion of the bright optical knots. Our proposed program will be complemented by a ground based spectroscopic survey and approved XRISM observations. The goal is to obtain a set of ACS/WFC images in order to perform proper motion measurements of the O-rich and S-rich ejecta. We will use the ACS F475W and F625W filters in order to isolate [O III] and [S II] emission from high velocity ejecta. There are 4 target regions which will be imaged, in order to cover the eastern region of the SNR, and a portion of bright emission in the center-west. To do this we have constructed an observing program of four (4) visits. Each of the visits target a region of the SNR with two ACS filters (F475W and F625W) using a 4x500 sec exposure dithered using a 2 point dither pattern ACS-WFC-DITHER-LINE spaced by 3 arcseconds, with a 2 point subpattern within each point. Due to visibility constraints, one orbit will be needed for each filter and region combination, resulting in a total of 8 orbits. We initially were granted CVZ time through the joint XMM-Newton program, but there is no CVZ time for this target in the current cycle. We have therefore adjusted the pointings of 4 of our targets, and dropped two other regions which were listed in our phase 1 submission. We have listed roll requirements for each visit. Given these requirements, our target is schedulable for a two week period beginning June 6, and for approximately 3 weeks beginning on September 8 and again on November 22, 2025. Dr Patnaude will serve as PI and have oversight of work related to this proposal. He is an expert in X-ray observations of supernovae and SNRs. Dr Acero is the European PI, and is an expert in advanced techniques for spatial/spectral analysis of astrophysical sources. Dr Fesen is an expert in optical observations of SNRs and is an experienced HST user. Dr Milisavljevic, Mr Ding, and Ms Dickinson will aid in interpretation of the observations. Dr's Temim, Plucinsky, Slane, and Miceli are all experts in analyzing X-ray observations of SNRs. Professor Winkler is an expert on G292 and was the PI for previous observations. Dr Orlando will aid in interpreting the joint X-ray and optical observations, and will use the data for comparison against detailed 3D models derived from neutrino-driven explosion models. Stellar Physics and Stellar Types Stellar Populations and the Interstellar Medium 6 false false false false false false true SECONDARY XMM_NEWTON 096447 false SUPPORTED ISM SNR YES This object was generated by the targetselector and retrieved from the SIMBAD database. MSH11-54 J2000 J2000 1.5e-15 erg/cm2/s/arcsec2 in [O III] 5007 ISM SNR MSH11-54 J2000 J2000 ISM SNR MSH11-54 J2000 J2000 ISM SNR MSH11-54 J2000 J2000 ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F550M POS-TARG DITHER DITHER 2 3.034 LINE false false 0.364 2 85.29 POS-TARG ACS-WFC-DITHER-LINE 47.23 1

true

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