
| Proposal ID | 020501 |
| Title | DO ALL LMXBS FORM WITHIN GLOBULAR CLUSTERS? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205010101 |
| DOI | https://doi.org/10.5270/esa-8cw6l4w |
| Principal Investigator, PI | Dr JIMMY IRWIN |
| Abstract | Recent studies have found that a large fraction of LMXBs within ellipticalgalaxies reside within globular clusters, prompting claims that all LMXBs areformed within globular clusters. If so, the total X-ray luminosity emanatingfrom LMXBs should scale directly with the globular cluster specific frequency,S_N. Conversely, if there is a significant field-born population of LMXBs thisrelation will be flatter. We have begun a program to test this claim, but weneed to observe galaxies with high values of S_N to confirm our findings. Wepropose observations of NGC4278 (S_N=8.7) and NGC4526 (S_N=7.7), two nearbygas-poor galaxies with high well-constrained values of S_N. These observationswill put stringent constraints on the field-born population of LMXBs in galaxies. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-05-23T17:13:02Z/2004-06-05T19:14:21Z |
| Version | 21.51_20241115_1113 |
| 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 | 2005-07-04T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "stringent constraints", "globular clusters", "elliptical galaxy reside", "constrained values", "lmxbs form", "globular clusters ?.", "nearby gas", "prompting claims", "field born population", "NGC4278", "ngc4526 s_n", "ngc4278 s_n" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr JIMMY IRWIN, 2005, 'DO ALL LMXBS FORM WITHIN GLOBULAR CLUSTERS?', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-8cw6l4w |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |