Photometric and spectroscopic studies of spider systems
Abstract/Contents
- Abstract
- Some millisecond pulsars (MSPs) form a close binary system with a low-mass companion, where the companion is irradiated by the MSP. Such system are broadly known as 'spiders'. In recent years, several of these systems have been discovered through Fermi LAT and targeted follow-ups. The companion of such system has highly complex atmospheres due to extreme pulsar heating on the front side, their surface heating patterns offers a rich and complex view of the physical system, allowing one to indirectly probe these MSPs. Several of such systems are relatively bright and close, allowing detailed optical and x-ray study. In this thesis, we present numerical and analytical analysis of optical and x-ray emissions from these systems. In our study, we explore the possibility that companion atmospheres are altered due to pulsar irradiation as well as magnetic activity, thus the atmosphere might exhibit phenomena like heat circulation, diffusion or local increase in surface temperature through spots generated through magnetic activity. Through this more detailed modeling of optical and x-ray emissions, we estimate important parameters of the system, including the pulsar mass, and find that the spider systems are ideal for search of heavy neutron stars, potentially providing excellent constraint on the neutron star equation-of-state.
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource. |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2022; ©2022 |
| Publication date | 2022; 2022 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Kandel, Dinesh |
|---|---|
| Degree supervisor | Romani, Roger W. (Roger William) |
| Thesis advisor | Romani, Roger W. (Roger William) |
| Thesis advisor | Blandford, Roger D |
| Thesis advisor | Macintosh, Bruce, 1966- |
| Degree committee member | Blandford, Roger D |
| Degree committee member | Macintosh, Bruce, 1966- |
| Associated with | Stanford University, Department of Physics |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Dinesh Kandel. |
|---|---|
| Note | Submitted to the Department of Physics. |
| Thesis | Thesis Ph.D. Stanford University 2022. |
| Location | https://purl.stanford.edu/ww705vz6262 |
Access conditions
- Copyright
- © 2022 by Dinesh Kandel
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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