Extreme mass-ratio inspirals, a target source for the space-based
gravitational wave detector LISA, are a sensitive probe of fundamental scalar
fields coupled to gravity. We assess the capability of LISA to detect whether
the secondary compact object is endowed with a scalar field, in the case of
inclined orbits. We show that the imprint of the scalar field depends on the
orbital inclination, and is significantly larger for prograde orbits.
Conclusions:
- Extreme mass-ratio inspirals (EMRIs) are a target source for the space-based gravitational wave detector LISA.
- EMRIs can provide valuable information about fundamental scalar fields coupled to gravity.
- The presence of a scalar field can be detected by LISA, particularly in the case of inclined orbits.
- The imprint of the scalar field is larger for prograde (forward-moving) orbits compared to retrograde (backward-moving) orbits.
Roadmap for Readers:
1. Introduction
The introduction provides an overview of the significance of extreme mass-ratio inspirals as a target source for the LISA gravitational wave detector, emphasizing their potential to probe fundamental scalar fields coupled to gravity.
2. Background
This section explains the concepts of extreme mass-ratio inspirals and scalar fields coupled to gravity, ensuring readers have a clear understanding of the topic before delving into the analysis.
3. Methodology
This section describes the approach used to assess the capability of LISA in detecting the presence of scalar fields in EMRIs with inclined orbits. It outlines the calculations and simulations performed to study the imprint of scalar fields on the gravitational wave signals.
4. Results
This section presents the findings of the study. It highlights that the imprint of scalar fields depends on the orbital inclination and is more pronounced for prograde orbits compared to retrograde orbits.
5. Discussion
In this section, the authors analyze and interpret the results obtained. They explore the implications of their findings and discuss the significance of detecting scalar fields in EMRIs.
6. Future Challenges
This section identifies potential challenges that need to be addressed in future research. It could include limitations of the current study, computational complexities, and uncertainties in the detection process.
7. Opportunities on the Horizon
This section explores potential opportunities for further investigation. It could discuss areas for improvement in data analysis techniques, advancements in gravitational wave detectors, or the possibility of conducting observational studies.
8. Conclusion
A summary of the key findings and their implications is provided in the conclusion section. It reinforces the importance of studying extreme mass-ratio inspirals to probe fundamental scalar fields coupled to gravity.
Format:
Extreme mass-ratio inspirals, a target source for the space-based gravitational wave detector LISA, are a sensitive probe of fundamental scalar fields coupled to gravity. We assess the capability of LISA to detect whether the secondary compact object is endowed with a scalar field, in the case of inclined orbits. We show that the imprint of the scalar field depends on the orbital inclination, and is significantly larger for prograde orbits.