Status and Perspectives of Continuous Gravitational Wave Searches
Abstract
:1. Introduction
2. Sources of Continuous GWs
2.1. Neutron Stars
Strain Amplitude Limits
2.2. Dark Matter Candidates
2.2.1. Boson Clouds
2.2.2. Ultralight Vector Bosons: Dark Photons
2.2.3. Compact Dark Objects and Primordial Black Holes
3. Searches for CWs Signals with Earth-Based Detectors
3.1. The Signal at the Detector
3.2. Search Methods
4. Recent Results
4.1. Results from Known Sources (Pulsars, LMXBs, Supernova Remnants)
4.1.1. Known Pulsars
4.1.2. Supernova Remnants
4.1.3. Low-Mass X-ray Binaries and Sco-X1
4.2. Results from Unknown Sources (All-Sky, Spotlight Surveys, Dark Matter Candidates)
4.2.1. All-Sky Surveys
4.2.2. Spotlight Surveys: The Galactic Center and Terzan 5
4.2.3. Dark Matter Candidates—Ultralight Bosons and CDOs
5. Conclusions
Funding
Acknowledgments
Conflicts of Interest
1 | Given the proportionality between and , here f can indicate any of the two frequencies. |
2 | for and for . |
3 | Hence, the time derivative of the time component of is negligible relative to . |
4 | Recycled pulsars are ordinary pulsars that have been spun up by accretion from a companion star in a binary system. |
5 | The ranges are due to fact that the coherence time used in [248] changes in each 10Hz frequency band. |
6 | except for the SOAP pipeline that covers the additional small region in frequency and in spin-up. |
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Piccinni, O.J. Status and Perspectives of Continuous Gravitational Wave Searches. Galaxies 2022, 10, 72. https://doi.org/10.3390/galaxies10030072
Piccinni OJ. Status and Perspectives of Continuous Gravitational Wave Searches. Galaxies. 2022; 10(3):72. https://doi.org/10.3390/galaxies10030072
Chicago/Turabian StylePiccinni, Ornella Juliana. 2022. "Status and Perspectives of Continuous Gravitational Wave Searches" Galaxies 10, no. 3: 72. https://doi.org/10.3390/galaxies10030072