| PROPOSAL OVERVIEW | |
| Proposal Title | Resolving the relativistic shock breakout in the brightest, longest QPE |
| Proposal Category | Active Galactic Nuclei, Quasars, BL-Lac Objects and Tidal Disruption Events |
| Proposal Type | LARGE PROGRAM |
| Proposal Id | 096454 |
| Number of Observations | 4 |
| Total exposure time (ks) | 448 |
| PI DETAILS | |
| PI | Mr. Joheen Chakraborty |
| Institute | MIT |
| Country | UNITED STATES |
| CO-INVESTIGATORS | ||
| Name | Country | |
| L. Hernandez-Garcia | CHILE | |
| P. Sanchez-Saez | GERMANY | |
| P. Kosec | UNITED STATES | |
| E. Behar | ISRAEL | |
| G. Miniutti | SPAIN | |
| M. Giustini | SPAIN | |
| R. Arcodia | UNITED STATES | |
| E. Kara | UNITED STATES | |
| C. Ricci | CHILE | |
| M. Masterson | UNITED STATES | |
| A. Merloni | GERMANY | |
| A. Rau | GERMANY | |
| E. Quintin | SPAIN | |
| K. Gendreau | UNITED STATES | |
| Z. Arzoumanian | UNITED STATES | |
| ABSTRACT | |
| We recently discovered Quasi-Periodic Eruptions (QPEs) in a tenth galaxy, SDSS1335+0728. They are extreme: they rise to peak amplitudes of 500x quiescence, last 1.5 days, and reach fluxes >1.5e-11 erg/cm2/s. With eruptions 4x longer and peak flux 2.5x higher than any other QPE source, SDSS1335 provides 10x more counts per flare, allowing phase-resolved high-resolution spectroscopy for the first time. We uncovered a rapidly evolving spectral feature suggesting a relativistic outflow of 0.06-0.15c; this is the first detection of such a feature in a QPE, and tracing its evolution will be an extremely powerful model constraint. We propose 440ks XMM+50ks Swift monitoring to resolve the properties of the ionizing continuum in unprecedented detail and constrain the putative shock-breakout powering QPEs. | |
| PAPERS |
| - CLASS 1: | papers that present specific XMM-Newton observations |
| - CLASS 2: | papers that refer to published XMM-Newton results with complementary observations, follow-up analysis, or theoretical analysis |
| - CLASS 3: | further deliveries which resulted from the program and which are made available to the community (e.g. source catalogues, processed images or spectra in public data base) |
| - CLASS 4: | comments and suggestions from PI |