
| Proposal ID | 072183 |
| Title | A New Class of X-ray Transients? Highly Luminous XMM Transients |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721830301 |
| DOI | https://doi.org/10.5270/esa-970668r |
| Principal Investigator, PI | Dr Richard Mushotzky |
| Abstract | Finding X-ray counterparts to future LIGO/Virgo events requires an understandingof the transient sky at low redshift. We have identified 7 nearby (D < 300 Mpc)transients in the XMM-Newton Slew Survey Catalog via a systematic comparisonwith the ROSAT All Sky Survey. These sources have unusual properties and so aredifficult to characterize. They are highly luminous (>1e42 erg/s), extremelyvariable, associated with galaxies within 300 Mpc, and lack optical AGNsignatures. We propose to observe these seven targets with XMM-Newton in anattempt to identify their nature. The sources could prove to be tidal disruptionevents, GRB afterglows, very high energy ULXs, or some new class. This is thefirst study of X-ray transients within the LIGO/Virgo horizon. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-09-10T22:55:12Z/2013-12-21T08:48:24Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2015-01-20T23:00:00Z |
| Last Update | 2026-03-04 |
| Keywords | "systematic comparison", "optical agn signatures", "energy ulxs", "mpc transients", "luminous xmm transients", "XMM-Newton", "sky survey", "xmm newton", "virgo events", "future ligo", "tidal disruption events", "finding xray counterparts", "ROSAT", "1e42 erg", "XMM", "xray transients", "low redshift", "virgo horizon", "transient sky", "grb afterglows" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Richard Mushotzky, 2015, 'A New Class of X-ray Transients? Highly Luminous XMM Transients', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-970668r |