Proposal ID | 055344 |
Title | Searching for Millisecond Pulsars in Extremely Low-Mass White Dwarf Binaries |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0553440101 |
DOI | https://doi.org/10.5270/esa-sj24qhs |
Principal Investigator, PI | Dr Craig Heinke |
Abstract | Several extremely low-mass white dwarfs, with masses below 0.24 solar masses,have recently been discovered in large surveys. These white dwarfs cannot beformed through the evolution of single stars, and several are known ascompanions of millisecond radio pulsars. We propose a search for X-ray emissionfrom seven relatively bright extremely low-mass white dwarfs to distinguishbetween neutron star vs. white dwarf companions. New millisecond pulsars withcompanions amenable to spectroscopy are of great interest, while ruling outneutron star companions will put constraints on common envelope models fordouble white dwarf evolution. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2008-05-07T14:31:42Z/2008-11-22T13:09:16Z |
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 | 2009-12-20T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "single stars", "solar masses", "neutron star companions", "relatively bright", "white dwarfs", "companions amenable", "millisecond radio pulsars", "white dwarf companions", "xray emission", "envelope models", "neutron star", "millisecond pulsars" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Craig Heinke, 2009, 'Searching for Millisecond Pulsars in Extremely Low-Mass White Dwarf Binaries', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-sj24qhs |